content: package cn.hotapk.fastandrutils.utils;
  
  import android.annotation.TargetApi;
  import android.graphics.Bitmap;
  import android.graphics.BitmapFactory;
  import android.graphics.BitmapShader;
  import android.graphics.Canvas;
  import android.graphics.Color;
  import android.graphics.ColorMatrix;
  import android.graphics.ColorMatrixColorFilter;
  import android.graphics.ImageFormat;
  import android.graphics.LinearGradient;
  import android.graphics.Matrix;
  import android.graphics.Paint;
  import android.graphics.PixelFormat;
  import android.graphics.PorterDuff;
  import android.graphics.PorterDuffColorFilter;
  import android.graphics.PorterDuffXfermode;
  import android.graphics.Rect;
  import android.graphics.RectF;
  import android.graphics.Shader;
  import android.graphics.YuvImage;
  import android.graphics.drawable.BitmapDrawable;
  import android.graphics.drawable.Drawable;
  import android.media.ExifInterface;
  import android.os.Build;
  import android.renderscript.Allocation;
  import android.renderscript.Element;
  import android.renderscript.RenderScript;
  import android.renderscript.ScriptIntrinsicBlur;
  import android.support.annotation.ColorInt;
  import android.support.annotation.DrawableRes;
  import android.support.annotation.FloatRange;
  import android.support.annotation.IntRange;
  import android.support.v4.content.ContextCompat;
  import android.util.Base64;
  import android.view.View;
  
  import java.io.BufferedInputStream;
  import java.io.BufferedOutputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.File;
  import java.io.FileDescriptor;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  /**
   * @author laijian
   * @version 2017/9/18
   * @Copyright (C)下午10:30 , www.hotapk.cn
   * 图片工具类
   */
  public final class FImageUtils {
  
      private FImageUtils() {
  
      }
  
      /**
       * bitmap转byteArr
       *
       * @param bitmap bitmap对象
       * @param format 格式
       * @return 字节数组
       */
      public static byte[] bitmap2Bytes(final Bitmap bitmap, final Bitmap.CompressFormat format) {
          if (bitmap == null) return null;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          bitmap.compress(format, 100, baos);
          return baos.toByteArray();
      }
  
      /**
       * yuv转jpeg
       *
       * @param yuvBytes
       * @param width
       * @param height
       * @return
       */
      public static byte[] yuv2Jpeg(byte[] yuvBytes, int width, int height) {
          YuvImage yuvImage = new YuvImage(yuvBytes, ImageFormat.NV21, width, height, null);
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          yuvImage.compressToJpeg(new Rect(0, 0, width, height), 100, baos);
          return baos.toByteArray();
      }
  
      /**
       * 将Bitmap转换成Base64字符串
       *
       * @param bit 图片
       * @return base64 编码的图片
       */
      public static String bitmap2StrByBase64(Bitmap bit) {
          if (bit == null) return null;
          byte[] bytes = bitmap2Bytes(bit, Bitmap.CompressFormat.JPEG);
          return Base64.encodeToString(bytes, Base64.DEFAULT);
      }
  
  
      /**
       * Base64字符串转bitmap
       *
       * @param base64
       * @return
       */
      public static Bitmap base64ToBitmap(String base64) {
          byte[] base64ToByte = FEncryptUtils.base64ToByte(base64);
          return bytes2Bitmap(base64ToByte);
      }
  
      /**
       * drawable转byteArr
       *
       * @param drawable drawable对象
       * @param format   格式
       * @return 字节数组
       */
      public static byte[] drawable2Bytes(final Drawable drawable, final Bitmap.CompressFormat format) {
          return drawable == null ? null : bitmap2Bytes(drawable2Bitmap(drawable), format);
      }
  
      /**
       * 读取图片属性：旋转的角度
       *
       * @param path 图片绝对路径
       * @return degree旋转的角度
       */
      public static int readPictureDegree(String path) {
          int degree = 0;
          try {
              ExifInterface exifInterface = new ExifInterface(path);
              int orientation = exifInterface.getAttributeInt(ExifInterface.TAG_ORIENTATION,
                      ExifInterface.ORIENTATION_NORMAL);
              switch (orientation) {
                  case ExifInterface.ORIENTATION_ROTATE_90:
                      degree = 90;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_180:
                      degree = 180;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_270:
                      degree = 270;
                      break;
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
          return degree;
      }
  
      /**
       * 旋转图片
       *
       * @param angle
       * @param bitmap
       * @return
       */
      public static Bitmap rotaingImageView(int angle, Bitmap bitmap) {
          // 旋转图片 动作
          // 创建新的图片
          Bitmap resizedBitmap = null;
          try {
              Matrix matrix = new Matrix();
              matrix.postRotate(angle);
  
              resizedBitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
          } catch (Error e) {
              // TODO Auto-generated catch block
              e.printStackTrace();
          }
          return resizedBitmap;
      }
  
  
      /**
       * byteArr转bitmap
       *
       * @param bytes 字节数组
       * @return bitmap
       */
      public static Bitmap bytes2Bitmap(final byte[] bytes) {
          return (bytes == null || bytes.length == 0) ? null : BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
      }
  
      /**
       * drawable转bitmap
       *
       * @param drawable drawable对象
       * @return bitmap
       */
      public static Bitmap drawable2Bitmap(final Drawable drawable) {
          if (drawable instanceof BitmapDrawable) {
              BitmapDrawable bitmapDrawable = (BitmapDrawable) drawable;
              if (bitmapDrawable.getBitmap() != null) {
                  return bitmapDrawable.getBitmap();
              }
          }
          Bitmap bitmap;
          if (drawable.getIntrinsicWidth() <= 0 || drawable.getIntrinsicHeight() <= 0) {
              bitmap = Bitmap.createBitmap(1, 1,
                      drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
          } else {
              bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(),
                      drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565);
          }
          Canvas canvas = new Canvas(bitmap);
          drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
          drawable.draw(canvas);
          return bitmap;
      }
  
      /**
       * bitmap转drawable
       *
       * @param bitmap bitmap对象
       * @return drawable
       */
      public static Drawable bitmap2Drawable(final Bitmap bitmap) {
          return bitmap == null ? null : new BitmapDrawable(FUtils.getAppContext().getResources(), bitmap);
      }
  
      /**
       * byteArr转drawable
       *
       * @param bytes 字节数组
       * @return drawable
       */
      public static Drawable bytes2Drawable(final byte[] bytes) {
          return bitmap2Drawable(bytes2Bitmap(bytes));
      }
  
      /**
       * view转bitmap
       *
       * @param view 视图
       * @return bitmap
       */
      public static Bitmap view2Bitmap(final View view) {
          if (view == null) return null;
          Bitmap ret = Bitmap.createBitmap(view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
          Canvas canvas = new Canvas(ret);
          Drawable bgDrawable = view.getBackground();
          if (bgDrawable != null) {
              bgDrawable.draw(canvas);
          } else {
              canvas.drawColor(Color.WHITE);
          }
          view.draw(canvas);
          return ret;
      }
  
      /**
       * 获取bitmap
       *
       * @param file 文件
       * @return bitmap
       */
      public static Bitmap getBitmap(final File file) {
          if (file == null) return null;
          InputStream is = null;
          InputStream fileinp = FFileUtils.file2Inp(file.getAbsolutePath());
          if (fileinp != null) {
              is = new BufferedInputStream(fileinp);
              return BitmapFactory.decodeStream(is);
          } else {
              return null;
          }
      }
  
      /**
       * 获取bitmap
       *
       * @param filePath 文件路径
       * @return bitmap
       */
      public static Bitmap getBitmap(final String filePath) {
          if (isSpace(filePath)) return null;
          return BitmapFactory.decodeFile(filePath);
      }
  
      /**
       * 获取bitmap
       *
       * @param is 输入流
       * @return bitmap
       */
      public static Bitmap getBitmap(final InputStream is) {
          if (is == null) return null;
          return BitmapFactory.decodeStream(is);
      }
  
      /**
       * 获取bitmap
       *
       * @param data   数据
       * @param offset 偏移量
       * @return bitmap
       */
      public static Bitmap getBitmap(final byte[] data, final int offset) {
          if (data.length == 0) return null;
          return BitmapFactory.decodeByteArray(data, offset, data.length);
      }
  
      /**
       * 获取bitmap
       *
       * @param resId 资源id
       * @return bitmap
       */
      public static Bitmap getBitmap(@DrawableRes final int resId) {
          Drawable drawable = ContextCompat.getDrawable(FUtils.getAppContext(), resId);
          Canvas canvas = new Canvas();
          Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
          canvas.setBitmap(bitmap);
          drawable.setBounds(0, 0, drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight());
          drawable.draw(canvas);
          return bitmap;
      }
  
      /**
       * 获取bitmap
       *
       * @param fd 文件描述
       * @return bitmap
       */
      public static Bitmap getBitmap(final FileDescriptor fd) {
          if (fd == null) return null;
          return BitmapFactory.decodeFileDescriptor(fd);
      }
  
      /**
       * 缩放图片
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @return 缩放后的图片
       */
      public static Bitmap scale(final Bitmap src, final int newWidth, final int newHeight) {
          return scale(src, newWidth, newHeight, false);
      }
  
      /**
       * 缩放图片
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @param recycle   是否回收
       * @return 缩放后的图片
       */
      public static Bitmap scale(final Bitmap src, final int newWidth, final int newHeight, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = Bitmap.createScaledBitmap(src, newWidth, newHeight, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 缩放图片
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @return 缩放后的图片
       */
      public static Bitmap scale(final Bitmap src, final float scaleWidth, final float scaleHeight) {
          return scale(src, scaleWidth, scaleHeight, false);
      }
  
      /**
       * 缩放图片
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @param recycle     是否回收
       * @return 缩放后的图片
       */
      public static Bitmap scale(final Bitmap src, final float scaleWidth, final float scaleHeight, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Matrix matrix = new Matrix();
          matrix.setScale(scaleWidth, scaleHeight);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 裁剪图片
       *
       * @param src    源图片
       * @param x      开始坐标x
       * @param y      开始坐标y
       * @param width  裁剪宽度
       * @param height 裁剪高度
       * @return 裁剪后的图片
       */
      public static Bitmap clip(final Bitmap src, final int x, final int y, final int width, final int height) {
          return clip(src, x, y, width, height, false);
      }
  
      /**
       * 裁剪图片
       *
       * @param src     源图片
       * @param x       开始坐标x
       * @param y       开始坐标y
       * @param width   裁剪宽度
       * @param height  裁剪高度
       * @param recycle 是否回收
       * @return 裁剪后的图片
       */
      public static Bitmap clip(final Bitmap src, final int x, final int y, final int width, final int height, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = Bitmap.createBitmap(src, x, y, width, height);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 倾斜图片
       *
       * @param src 源图片
       * @param kx  倾斜因子x
       * @param ky  倾斜因子y
       * @return 倾斜后的图片
       */
      public static Bitmap skew(final Bitmap src, final float kx, final float ky) {
          return skew(src, kx, ky, 0, 0, false);
      }
  
      /**
       * 倾斜图片
       *
       * @param src     源图片
       * @param kx      倾斜因子x
       * @param ky      倾斜因子y
       * @param recycle 是否回收
       * @return 倾斜后的图片
       */
      public static Bitmap skew(final Bitmap src, final float kx, final float ky, final boolean recycle) {
          return skew(src, kx, ky, 0, 0, recycle);
      }
  
      /**
       * 倾斜图片
       *
       * @param src 源图片
       * @param kx  倾斜因子x
       * @param ky  倾斜因子y
       * @param px  平移因子x
       * @param py  平移因子y
       * @return 倾斜后的图片
       */
      public static Bitmap skew(final Bitmap src, final float kx, final float ky, final float px, final float py) {
          return skew(src, kx, ky, px, py, false);
      }
  
      /**
       * 倾斜图片
       *
       * @param src     源图片
       * @param kx      倾斜因子x
       * @param ky      倾斜因子y
       * @param px      平移因子x
       * @param py      平移因子y
       * @param recycle 是否回收
       * @return 倾斜后的图片
       */
      public static Bitmap skew(final Bitmap src, final float kx, final float ky, final float px, final float py, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Matrix matrix = new Matrix();
          matrix.setSkew(kx, ky, px, py);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 旋转图片
       *
       * @param src     源图片
       * @param degrees 旋转角度
       * @param px      旋转点横坐标
       * @param py      旋转点纵坐标
       * @return 旋转后的图片
       */
      public static Bitmap rotate(final Bitmap src, final int degrees, final float px, final float py) {
          return rotate(src, degrees, px, py, false);
      }
  
      /**
       * 旋转图片
       *
       * @param src     源图片
       * @param degrees 旋转角度
       * @param px      旋转点横坐标
       * @param py      旋转点纵坐标
       * @param recycle 是否回收
       * @return 旋转后的图片
       */
      public static Bitmap rotate(final Bitmap src, final int degrees, final float px, final float py, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          if (degrees == 0) return src;
          Matrix matrix = new Matrix();
          matrix.setRotate(degrees, px, py);
          Bitmap ret = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 获取图片旋转角度
       *
       * @param filePath 文件路径
       * @return 旋转角度
       */
      public static int getRotateDegree(final String filePath) {
          int degree = 0;
          try {
              ExifInterface exifInterface = new ExifInterface(filePath);
              int orientation = exifInterface.getAttributeInt(
                      ExifInterface.TAG_ORIENTATION,
                      ExifInterface.ORIENTATION_NORMAL);
              switch (orientation) {
                  default:
                  case ExifInterface.ORIENTATION_ROTATE_90:
                      degree = 90;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_180:
                      degree = 180;
                      break;
                  case ExifInterface.ORIENTATION_ROTATE_270:
                      degree = 270;
                      break;
              }
          } catch (IOException e) {
              e.printStackTrace();
          }
          return degree;
      }
  
      /**
       * 转为圆形图片
       *
       * @param src 源图片
       * @return 圆形图片
       */
      public static Bitmap toRound(final Bitmap src) {
          return toRound(src, 0, 0, false);
      }
  
      /**
       * 转为圆形图片
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return 圆形图片
       */
      public static Bitmap toRound(final Bitmap src, final boolean recycle) {
          return toRound(src, 0, 0, recycle);
      }
  
      /**
       * 转为圆形图片
       *
       * @param src         源图片
       * @param borderSize  边框尺寸
       * @param borderColor 边框颜色
       * @return 圆形图片
       */
      public static Bitmap toRound(final Bitmap src,
                                   @IntRange(from = 0) int borderSize,
                                   @ColorInt int borderColor) {
          return toRound(src, borderSize, borderColor, false);
      }
  
      /**
       * 转为圆形图片
       *
       * @param src         源图片
       * @param recycle     是否回收
       * @param borderSize  边框尺寸
       * @param borderColor 边框颜色
       * @return 圆形图片
       */
      public static Bitmap toRound(final Bitmap src,
                                   @IntRange(from = 0) int borderSize,
                                   @ColorInt int borderColor,
                                   final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          int size = Math.min(width, height);
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
          float center = size / 2f;
          RectF rectF = new RectF(0, 0, width, height);
          rectF.inset((width - size) / 2f, (height - size) / 2f);
          Matrix matrix = new Matrix();
          matrix.setTranslate(rectF.left, rectF.top);
          matrix.preScale((float) size / width, (float) size / height);
          BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
          shader.setLocalMatrix(matrix);
          paint.setShader(shader);
          Canvas canvas = new Canvas(ret);
          canvas.drawRoundRect(rectF, center, center, paint);
          if (borderSize > 0) {
              paint.setShader(null);
              paint.setColor(borderColor);
              paint.setStyle(Paint.Style.STROKE);
              paint.setStrokeWidth(borderSize);
              float radius = center - borderSize / 2f;
              canvas.drawCircle(width / 2f, height / 2f, radius, paint);
          }
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为圆角图片
       *
       * @param src    源图片
       * @param radius 圆角的度数
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(final Bitmap src, final float radius) {
          return toRoundCorner(src, radius, 0, 0, false);
      }
  
      /**
       * 转为圆角图片
       *
       * @param src     源图片
       * @param radius  圆角的度数
       * @param recycle 是否回收
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(final Bitmap src,
                                         final float radius,
                                         final boolean recycle) {
          return toRoundCorner(src, radius, 0, 0, recycle);
      }
  
      /**
       * 转为圆角图片
       *
       * @param src         源图片
       * @param radius      圆角的度数
       * @param borderSize  边框尺寸
       * @param borderColor 边框颜色
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(final Bitmap src,
                                         final float radius,
                                         @IntRange(from = 0) int borderSize,
                                         @ColorInt int borderColor) {
          return toRoundCorner(src, radius, borderSize, borderColor, false);
      }
  
      /**
       * 转为圆角图片
       *
       * @param src         源图片
       * @param radius      圆角的度数
       * @param borderSize  边框尺寸
       * @param borderColor 边框颜色
       * @param recycle     是否回收
       * @return 圆角图片
       */
      public static Bitmap toRoundCorner(final Bitmap src,
                                         final float radius,
                                         @IntRange(from = 0) int borderSize,
                                         @ColorInt int borderColor,
                                         final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          Bitmap ret = Bitmap.createBitmap(width, height, src.getConfig());
          BitmapShader shader = new BitmapShader(src, Shader.TileMode.CLAMP, Shader.TileMode.CLAMP);
          paint.setShader(shader);
          Canvas canvas = new Canvas(ret);
          RectF rectF = new RectF(0, 0, width, height);
          float halfBorderSize = borderSize / 2f;
          rectF.inset(halfBorderSize, halfBorderSize);
          canvas.drawRoundRect(rectF, radius, radius, paint);
          if (borderSize > 0) {
              paint.setShader(null);
              paint.setColor(borderColor);
              paint.setStyle(Paint.Style.STROKE);
              paint.setStrokeWidth(borderSize);
              paint.setStrokeCap(Paint.Cap.ROUND);
              canvas.drawRoundRect(rectF, radius, radius, paint);
          }
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加圆角边框
       *
       * @param src          源图片
       * @param borderSize   边框尺寸
       * @param color        边框颜色
       * @param cornerRadius 圆角半径
       * @return 圆角边框图
       */
      public static Bitmap addCornerBorder(final Bitmap src,
                                           @IntRange(from = 1) final int borderSize,
                                           @ColorInt final int color,
                                           @FloatRange(from = 0) final float cornerRadius) {
          return addBorder(src, borderSize, color, false, cornerRadius, false);
      }
  
      /**
       * 添加圆角边框
       *
       * @param src          源图片
       * @param borderSize   边框尺寸
       * @param color        边框颜色
       * @param cornerRadius 圆角半径
       * @param recycle      是否回收
       * @return 圆角边框图
       */
      public static Bitmap addCornerBorder(final Bitmap src,
                                           @IntRange(from = 1) final int borderSize,
                                           @ColorInt final int color,
                                           @FloatRange(from = 0) final float cornerRadius,
                                           final boolean recycle) {
          return addBorder(src, borderSize, color, false, cornerRadius, recycle);
      }
  
      /**
       * 添加圆形边框
       *
       * @param src        源图片
       * @param borderSize 边框尺寸
       * @param color      边框颜色
       * @return 圆形边框图
       */
      public static Bitmap addCircleBorder(final Bitmap src,
                                           @IntRange(from = 1) final int borderSize,
                                           @ColorInt final int color) {
          return addBorder(src, borderSize, color, true, 0, false);
      }
  
      /**
       * 添加圆形边框
       *
       * @param src        源图片
       * @param borderSize 边框尺寸
       * @param color      边框颜色
       * @param recycle    是否回收
       * @return 圆形边框图
       */
      public static Bitmap addCircleBorder(final Bitmap src,
                                           @IntRange(from = 1) final int borderSize,
                                           @ColorInt final int color,
                                           final boolean recycle) {
          return addBorder(src, borderSize, color, true, 0, recycle);
      }
  
      /**
       * 添加边框
       *
       * @param src          源图片
       * @param borderSize   边框尺寸
       * @param color        边框颜色
       * @param isCircle     是否画圆
       * @param cornerRadius 圆角半径
       * @param recycle      是否回收
       * @return 边框图
       */
      private static Bitmap addBorder(final Bitmap src,
                                      @IntRange(from = 1) final int borderSize,
                                      @ColorInt final int color,
                                      final boolean isCircle,
                                      final float cornerRadius,
                                      final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
          int width = ret.getWidth();
          int height = ret.getHeight();
          Canvas canvas = new Canvas(ret);
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          paint.setColor(color);
          paint.setStyle(Paint.Style.STROKE);
          paint.setStrokeWidth(borderSize);
          if (isCircle) {
              float radius = Math.min(width, height) / 2f - borderSize / 2f;
              canvas.drawCircle(width / 2f, height / 2f, radius, paint);
          } else {
              int halfBorderSize = borderSize >> 1;
              RectF rectF = new RectF(halfBorderSize, halfBorderSize,
                      width - halfBorderSize, height - halfBorderSize);
              canvas.drawRoundRect(rectF, cornerRadius, cornerRadius, paint);
          }
          return ret;
      }
  
      /**
       * 添加倒影
       *
       * @param src              源图片的
       * @param reflectionHeight 倒影高度
       * @return 带倒影图片
       */
      public static Bitmap addReflection(final Bitmap src, final int reflectionHeight) {
          return addReflection(src, reflectionHeight, false);
      }
  
      /**
       * 添加倒影
       *
       * @param src              源图片的
       * @param reflectionHeight 倒影高度
       * @param recycle          是否回收
       * @return 带倒影图片
       */
      public static Bitmap addReflection(final Bitmap src,
                                         final int reflectionHeight,
                                         final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          // 原图与倒影之间的间距
          final int REFLECTION_GAP = 0;
          int srcWidth = src.getWidth();
          int srcHeight = src.getHeight();
          Matrix matrix = new Matrix();
          matrix.preScale(1, -1);
          Bitmap reflectionBitmap = Bitmap.createBitmap(src, 0, srcHeight - reflectionHeight,
                  srcWidth, reflectionHeight, matrix, false);
          Bitmap ret = Bitmap.createBitmap(srcWidth, srcHeight + reflectionHeight, src.getConfig());
          Canvas canvas = new Canvas(ret);
          canvas.drawBitmap(src, 0, 0, null);
          canvas.drawBitmap(reflectionBitmap, 0, srcHeight + REFLECTION_GAP, null);
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          LinearGradient shader = new LinearGradient(
                  0, srcHeight,
                  0, ret.getHeight() + REFLECTION_GAP,
                  0x70FFFFFF,
                  0x00FFFFFF,
                  Shader.TileMode.MIRROR);
          paint.setShader(shader);
          paint.setXfermode(new PorterDuffXfermode(android.graphics.PorterDuff.Mode.DST_IN));
          canvas.drawRect(0, srcHeight + REFLECTION_GAP, srcWidth, ret.getHeight(), paint);
          if (!reflectionBitmap.isRecycled()) reflectionBitmap.recycle();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加文字水印
       *
       * @param src      源图片
       * @param content  水印文本
       * @param textSize 水印字体大小
       * @param color    水印字体颜色
       * @param x        起始坐标x
       * @param y        起始坐标y
       * @return 带有文字水印的图片
       */
      public static Bitmap addTextWatermark(final Bitmap src,
                                            final String content,
                                            final int textSize,
                                            @ColorInt final int color,
                                            final float x,
                                            final float y) {
          return addTextWatermark(src, content, textSize, color, x, y, false);
      }
  
      /**
       * 添加文字水印
       *
       * @param src      源图片
       * @param content  水印文本
       * @param textSize 水印字体大小
       * @param color    水印字体颜色
       * @param x        起始坐标x
       * @param y        起始坐标y
       * @param recycle  是否回收
       * @return 带有文字水印的图片
       */
      public static Bitmap addTextWatermark(final Bitmap src,
                                            final String content,
                                            final float textSize,
                                            @ColorInt final int color,
                                            final float x,
                                            final float y,
                                            final boolean recycle) {
          if (isEmptyBitmap(src) || content == null) return null;
          Bitmap ret = src.copy(src.getConfig(), true);
          Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
          Canvas canvas = new Canvas(ret);
          paint.setColor(color);
          paint.setTextSize(textSize);
          Rect bounds = new Rect();
          paint.getTextBounds(content, 0, content.length(), bounds);
          canvas.drawText(content, x, y + textSize, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 添加图片水印
       *
       * @param src       源图片
       * @param watermark 图片水印
       * @param x         起始坐标x
       * @param y         起始坐标y
       * @param alpha     透明度
       * @return 带有图片水印的图片
       */
      public static Bitmap addImageWatermark(final Bitmap src,
                                             final Bitmap watermark,
                                             final int x, final int y,
                                             final int alpha) {
          return addImageWatermark(src, watermark, x, y, alpha, false);
      }
  
      /**
       * 添加图片水印
       *
       * @param src       源图片
       * @param watermark 图片水印
       * @param x         起始坐标x
       * @param y         起始坐标y
       * @param alpha     透明度
       * @param recycle   是否回收
       * @return 带有图片水印的图片
       */
      public static Bitmap addImageWatermark(final Bitmap src,
                                             final Bitmap watermark,
                                             final int x,
                                             final int y,
                                             final int alpha,
                                             final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = src.copy(src.getConfig(), true);
          if (!isEmptyBitmap(watermark)) {
              Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
              Canvas canvas = new Canvas(ret);
              paint.setAlpha(alpha);
              canvas.drawBitmap(watermark, x, y, paint);
          }
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为alpha位图
       *
       * @param src 源图片
       * @return alpha位图
       */
      public static Bitmap toAlpha(final Bitmap src) {
          return toAlpha(src, false);
      }
  
      /**
       * 转为alpha位图
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return alpha位图
       */
      public static Bitmap toAlpha(final Bitmap src, final Boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = src.extractAlpha();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 转为灰度图片
       *
       * @param src 源图片
       * @return 灰度图
       */
      public static Bitmap toGray(final Bitmap src) {
          return toGray(src, false);
      }
  
      /**
       * 转为灰度图片
       *
       * @param src     源图片
       * @param recycle 是否回收
       * @return 灰度图
       */
      public static Bitmap toGray(final Bitmap src, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          Bitmap ret = Bitmap.createBitmap(src.getWidth(), src.getHeight(), src.getConfig());
          Canvas canvas = new Canvas(ret);
          Paint paint = new Paint();
          ColorMatrix colorMatrix = new ColorMatrix();
          colorMatrix.setSaturation(0);
          ColorMatrixColorFilter colorMatrixColorFilter = new ColorMatrixColorFilter(colorMatrix);
          paint.setColorFilter(colorMatrixColorFilter);
          canvas.drawBitmap(src, 0, 0, paint);
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * 快速模糊
       * <p>先缩小原图，对小图进行模糊，再放大回原先尺寸</p>
       *
       * @param src    源图片
       * @param scale  缩放比例(0...1)
       * @param radius 模糊半径
       * @return 模糊后的图片
       */
      public static Bitmap fastBlur(final Bitmap src,
                                    @FloatRange(from = 0, to = 1, fromInclusive = false) final float scale,
                                    @FloatRange(from = 0, to = 25, fromInclusive = false) final float radius) {
          return fastBlur(src, scale, radius, false);
      }
  
      /**
       * 快速模糊图片
       * <p>先缩小原图，对小图进行模糊，再放大回原先尺寸</p>
       *
       * @param src     源图片
       * @param scale   缩放比例(0...1)
       * @param radius  模糊半径(0...25)
       * @param recycle 是否回收
       * @return 模糊后的图片
       */
      public static Bitmap fastBlur(final Bitmap src,
                                    @FloatRange(from = 0, to = 1, fromInclusive = false) final float scale,
                                    @FloatRange(from = 0, to = 25, fromInclusive = false) final float radius,
                                    final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          int width = src.getWidth();
          int height = src.getHeight();
          Matrix matrix = new Matrix();
          matrix.setScale(scale, scale);
          Bitmap scaleBitmap = Bitmap.createBitmap(src, 0, 0, src.getWidth(), src.getHeight(), matrix, true);
          Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.ANTI_ALIAS_FLAG);
          Canvas canvas = new Canvas();
          PorterDuffColorFilter filter = new PorterDuffColorFilter(
                  Color.TRANSPARENT, PorterDuff.Mode.SRC_ATOP);
          paint.setColorFilter(filter);
          canvas.scale(scale, scale);
          canvas.drawBitmap(scaleBitmap, 0, 0, paint);
          if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR1) {
              scaleBitmap = renderScriptBlur(scaleBitmap, radius, recycle);
          } else {
              scaleBitmap = stackBlur(scaleBitmap, (int) radius, recycle);
          }
          if (scale == 1) return scaleBitmap;
          Bitmap ret = Bitmap.createScaledBitmap(scaleBitmap, width, height, true);
          if (scaleBitmap != null && !scaleBitmap.isRecycled()) scaleBitmap.recycle();
          if (recycle && !src.isRecycled()) src.recycle();
          return ret;
      }
  
      /**
       * renderScript模糊图片
       * <p>API大于17</p>
       *
       * @param src    源图片
       * @param radius 模糊半径(0...25)
       * @return 模糊后的图片
       */
      @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
      public static Bitmap renderScriptBlur(final Bitmap src,
                                            @FloatRange(from = 0, to = 25, fromInclusive = false) final float radius) {
          return renderScriptBlur(src, radius, false);
      }
  
      /**
       * renderScript模糊图片
       * <p>API大于17</p>
       *
       * @param src     源图片
       * @param radius  模糊半径(0...25)
       * @param recycle 是否回收
       * @return 模糊后的图片
       */
      @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
      public static Bitmap renderScriptBlur(final Bitmap src,
                                            @FloatRange(from = 0, to = 25, fromInclusive = false) final float radius,
                                            final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          RenderScript rs = null;
          Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
          try {
              rs = RenderScript.create(FUtils.getAppContext());
              rs.setMessageHandler(new RenderScript.RSMessageHandler());
              Allocation input = Allocation.createFromBitmap(rs, ret, Allocation.MipmapControl.MIPMAP_NONE, Allocation
                      .USAGE_SCRIPT);
              Allocation output = Allocation.createTyped(rs, input.getType());
              ScriptIntrinsicBlur blurScript = ScriptIntrinsicBlur.create(rs, Element.U8_4(rs));
              blurScript.setInput(input);
              blurScript.setRadius(radius);
              blurScript.forEach(output);
              output.copyTo(ret);
          } finally {
              if (rs != null) {
                  rs.destroy();
              }
          }
          return ret;
      }
  
      /**
       * stack模糊图片
       *
       * @param src    源图片
       * @param radius 模糊半径
       * @return stack模糊后的图片
       */
      public static Bitmap stackBlur(final Bitmap src, final int radius) {
          return stackBlur(src, radius, false);
      }
  
      /**
       * stack模糊图片
       *
       * @param src     源图片
       * @param radius  模糊半径
       * @param recycle 是否回收
       * @return stack模糊后的图片
       */
      public static Bitmap stackBlur(final Bitmap src, final int radius, final boolean recycle) {
          Bitmap ret = recycle ? src : src.copy(src.getConfig(), true);
          if (radius < 1) {
              return null;
          }
  
          int w = ret.getWidth();
          int h = ret.getHeight();
  
          int[] pix = new int[w * h];
          ret.getPixels(pix, 0, w, 0, 0, w, h);
  
          int wm = w - 1;
          int hm = h - 1;
          int wh = w * h;
          int div = radius + radius + 1;
  
          int r[] = new int[wh];
          int g[] = new int[wh];
          int b[] = new int[wh];
          int rsum, gsum, bsum, x, y, i, p, yp, yi, yw;
          int vmin[] = new int[Math.max(w, h)];
  
          int divsum = (div + 1) >> 1;
          divsum *= divsum;
          int dv[] = new int[256 * divsum];
          for (i = 0; i < 256 * divsum; i++) {
              dv[i] = (i / divsum);
          }
  
          yw = yi = 0;
  
          int[][] stack = new int[div][3];
          int stackpointer;
          int stackstart;
          int[] sir;
          int rbs;
          int r1 = radius + 1;
          int routsum, goutsum, boutsum;
          int rinsum, ginsum, binsum;
  
          for (y = 0; y < h; y++) {
              rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
              for (i = -radius; i <= radius; i++) {
                  p = pix[yi + Math.min(wm, Math.max(i, 0))];
                  sir = stack[i + radius];
                  sir[0] = (p & 0xff0000) >> 16;
                  sir[1] = (p & 0x00ff00) >> 8;
                  sir[2] = (p & 0x0000ff);
                  rbs = r1 - Math.abs(i);
                  rsum += sir[0] * rbs;
                  gsum += sir[1] * rbs;
                  bsum += sir[2] * rbs;
                  if (i > 0) {
                      rinsum += sir[0];
                      ginsum += sir[1];
                      binsum += sir[2];
                  } else {
                      routsum += sir[0];
                      goutsum += sir[1];
                      boutsum += sir[2];
                  }
              }
              stackpointer = radius;
  
              for (x = 0; x < w; x++) {
  
                  r[yi] = dv[rsum];
                  g[yi] = dv[gsum];
                  b[yi] = dv[bsum];
  
                  rsum -= routsum;
                  gsum -= goutsum;
                  bsum -= boutsum;
  
                  stackstart = stackpointer - radius + div;
                  sir = stack[stackstart % div];
  
                  routsum -= sir[0];
                  goutsum -= sir[1];
                  boutsum -= sir[2];
  
                  if (y == 0) {
                      vmin[x] = Math.min(x + radius + 1, wm);
                  }
                  p = pix[yw + vmin[x]];
  
                  sir[0] = (p & 0xff0000) >> 16;
                  sir[1] = (p & 0x00ff00) >> 8;
                  sir[2] = (p & 0x0000ff);
  
                  rinsum += sir[0];
                  ginsum += sir[1];
                  binsum += sir[2];
  
                  rsum += rinsum;
                  gsum += ginsum;
                  bsum += binsum;
  
                  stackpointer = (stackpointer + 1) % div;
                  sir = stack[(stackpointer) % div];
  
                  routsum += sir[0];
                  goutsum += sir[1];
                  boutsum += sir[2];
  
                  rinsum -= sir[0];
                  ginsum -= sir[1];
                  binsum -= sir[2];
  
                  yi++;
              }
              yw += w;
          }
          for (x = 0; x < w; x++) {
              rinsum = ginsum = binsum = routsum = goutsum = boutsum = rsum = gsum = bsum = 0;
              yp = -radius * w;
              for (i = -radius; i <= radius; i++) {
                  yi = Math.max(0, yp) + x;
  
                  sir = stack[i + radius];
  
                  sir[0] = r[yi];
                  sir[1] = g[yi];
                  sir[2] = b[yi];
  
                  rbs = r1 - Math.abs(i);
  
                  rsum += r[yi] * rbs;
                  gsum += g[yi] * rbs;
                  bsum += b[yi] * rbs;
  
                  if (i > 0) {
                      rinsum += sir[0];
                      ginsum += sir[1];
                      binsum += sir[2];
                  } else {
                      routsum += sir[0];
                      goutsum += sir[1];
                      boutsum += sir[2];
                  }
  
                  if (i < hm) {
                      yp += w;
                  }
              }
              yi = x;
              stackpointer = radius;
              for (y = 0; y < h; y++) {
                  // Preserve alpha channel: ( 0xff000000 & pix[yi] )
                  pix[yi] = (0xff000000 & pix[yi]) | (dv[rsum] << 16) | (dv[gsum] << 8) | dv[bsum];
  
                  rsum -= routsum;
                  gsum -= goutsum;
                  bsum -= boutsum;
  
                  stackstart = stackpointer - radius + div;
                  sir = stack[stackstart % div];
  
                  routsum -= sir[0];
                  goutsum -= sir[1];
                  boutsum -= sir[2];
  
                  if (x == 0) {
                      vmin[y] = Math.min(y + r1, hm) * w;
                  }
                  p = x + vmin[y];
  
                  sir[0] = r[p];
                  sir[1] = g[p];
                  sir[2] = b[p];
  
                  rinsum += sir[0];
                  ginsum += sir[1];
                  binsum += sir[2];
  
                  rsum += rinsum;
                  gsum += ginsum;
                  bsum += binsum;
  
                  stackpointer = (stackpointer + 1) % div;
                  sir = stack[stackpointer];
  
                  routsum += sir[0];
                  goutsum += sir[1];
                  boutsum += sir[2];
  
                  rinsum -= sir[0];
                  ginsum -= sir[1];
                  binsum -= sir[2];
  
                  yi += w;
              }
          }
          ret.setPixels(pix, 0, w, 0, 0, w, h);
          return ret;
      }
  
  
      /**
       * 图片锐化（拉普拉斯变换）
       *
       * @param bmp
       * @return
       */
      public static Bitmap sharpenImageAmeliorate(Bitmap bmp) {
          // 拉普拉斯矩阵
          int[] laplacian = new int[]{-1, -1, -1, -1, 9, -1, -1, -1, -1};
          int width = bmp.getWidth();
          int height = bmp.getHeight();
          Bitmap bitmap = Bitmap.createBitmap(width, height,
                  Bitmap.Config.ARGB_8888);
          int pixR = 0;
          int pixG = 0;
          int pixB = 0;
          int pixColor = 0;
          int newR = 0;
          int newG = 0;
          int newB = 0;
          int idx = 0;
          float alpha = 0.3F;
          int[] pixels = new int[width * height];
          bmp.getPixels(pixels, 0, width, 0, 0, width, height);
          for (int i = 1, length = height - 1; i < length; i++) {
              for (int k = 1, len = width - 1; k < len; k++) {
                  idx = 0;
                  for (int m = -1; m <= 1; m++) {
                      for (int n = -1; n <= 1; n++) {
                          pixColor = pixels[(i + n) * width + k + m];
                          pixR = Color.red(pixColor);
                          pixG = Color.green(pixColor);
                          pixB = Color.blue(pixColor);
                          newR = newR + (int) (pixR * laplacian[idx] * alpha);
                          newG = newG + (int) (pixG * laplacian[idx] * alpha);
                          newB = newB + (int) (pixB * laplacian[idx] * alpha);
                          idx++;
                      }
                  }
                  newR = Math.min(255, Math.max(0, newR));
                  newG = Math.min(255, Math.max(0, newG));
                  newB = Math.min(255, Math.max(0, newB));
                  pixels[i * width + k] = Color.argb(255, newR, newG, newB);
                  newR = 0;
                  newG = 0;
                  newB = 0;
              }
          }
          bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
          return bitmap;
      }
  
  
      /**
       * 图片二值化
       *
       * @param bitmap
       * @return
       */
      public static Bitmap binaryzation(Bitmap bitmap) {
  
          //得到图形的宽度和长度  
          int width = bitmap.getWidth();
          int height = bitmap.getHeight();
          //创建二值化图像 
          Bitmap binarymap = null;
          binarymap = bitmap.copy(Bitmap.Config.ARGB_8888, true);
          //依次循环，对图像的像素进行处理 
          for (int i = 0; i < width; i++) {
              for (int j = 0; j < height; j++) {
                  int col = binarymap.getPixel(i, j);
                  int alpha = col & 0xFF000000;
                  //得到图像的像素RGB 
                  int red = (col & 0x00FF0000) >> 16;
                  int green = (col & 0x0000FF00) >> 8;
                  int blue = (col & 0x000000FF);
                  // 用公式X = 0.3×R+0.59×G+0.11×B计算出X代替原来的RGB  
                  int gray = (int) ((float) red * 0.3 + (float) green * 0.59 +
                          (float) blue * 0.11);
                  //对图像进行二值化处理  
                  if (gray <= 110) {
                      gray = 0;
                  } else {
                      gray = 255;
                  }
                  // 新的ARGB  
                  int newColor = alpha | (gray << 16) | (gray << 8) | gray;
                  //设置新图像的当前像素值
                  binarymap.setPixel(i, j, newColor);
              }
          }
          return binarymap;
      }
  
      /**
       * 保存图片
       *
       * @param src      源图片
       * @param filePath 要保存到的文件路径
       * @param format   格式
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(final Bitmap src, final String filePath, final Bitmap.CompressFormat format) {
          return save(src, getFileByPath(filePath), format, false);
      }
  
      /**
       * 保存图片
       *
       * @param src    源图片
       * @param file   要保存到的文件
       * @param format 格式
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(final Bitmap src, final File file, final Bitmap.CompressFormat format) {
          return save(src, file, format, false);
      }
  
      /**
       * 保存图片
       *
       * @param src      源图片
       * @param filePath 要保存到的文件路径
       * @param format   格式
       * @param recycle  是否回收
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(final Bitmap src, final String filePath, final Bitmap.CompressFormat format, final boolean recycle) {
          return save(src, getFileByPath(filePath), format, recycle);
      }
  
      /**
       * 保存图片
       *
       * @param src     源图片
       * @param file    要保存到的文件
       * @param format  格式
       * @param recycle 是否回收
       * @return {@code true}: 成功<br>{@code false}: 失败
       */
      public static boolean save(final Bitmap src, final File file, final Bitmap.CompressFormat format, final boolean recycle) {
          if (isEmptyBitmap(src) || !createFileByDeleteOldFile(file)) return false;
          OutputStream os = null;
          boolean ret = false;
          try {
              os = new BufferedOutputStream(new FileOutputStream(file));
              ret = src.compress(format, 100, os);
              if (recycle && !src.isRecycled()) src.recycle();
          } catch (IOException e) {
              e.printStackTrace();
          } finally {
              FCloseUtils.closeIO(os);
          }
          return ret;
      }
  
      /**
       * 根据文件名判断文件是否为图片
       *
       * @param file 　文件
       * @return {@code true}: 是<br>{@code false}: 否
       */
      public static boolean isImage(final File file) {
          return file != null && isImage(file.getPath());
      }
  
      /**
       * 根据文件名判断文件是否为图片
       *
       * @param filePath 　文件路径
       * @return {@code true}: 是<br>{@code false}: 否
       */
      public static boolean isImage(final String filePath) {
          String path = filePath.toUpperCase();
          return path.endsWith(".PNG") || path.endsWith(".JPG")
                  || path.endsWith(".JPEG") || path.endsWith(".BMP")
                  || path.endsWith(".GIF");
      }
  
      /**
       * 获取图片类型
       *
       * @param filePath 文件路径
       * @return 图片类型
       */
      public static String getImageType(final String filePath) {
          return getImageType(getFileByPath(filePath));
      }
  
      /**
       * 获取图片类型
       *
       * @param file 文件
       * @return 图片类型
       */
      public static String getImageType(final File file) {
          if (file == null) return null;
          InputStream is = FFileUtils.file2Inp(file.getAbsolutePath());
          try {
              if (is != null) {
                  return getImageType(is);
              }
          } catch (Exception e) {
              e.printStackTrace();
              return null;
          } finally {
              FCloseUtils.closeIO(is);
          }
          return null;
      }
  
      /**
       * 流获取图片类型
       *
       * @param is 图片输入流
       * @return 图片类型
       */
      public static String getImageType(final InputStream is) {
          if (is == null) return null;
          try {
              byte[] bytes = new byte[8];
              return is.read(bytes, 0, 8) != -1 ? getImageType(bytes) : null;
          } catch (IOException e) {
              e.printStackTrace();
              return null;
          }
      }
  
      /**
       * 获取图片类型
       *
       * @param bytes bitmap的前8字节
       * @return 图片类型
       */
      public static String getImageType(final byte[] bytes) {
          if (isJPEG(bytes)) return "JPEG";
          if (isGIF(bytes)) return "GIF";
          if (isPNG(bytes)) return "PNG";
          if (isBMP(bytes)) return "BMP";
          return null;
      }
  
      private static boolean isJPEG(final byte[] b) {
          return b.length >= 2
                  && (b[0] == (byte) 0xFF) && (b[1] == (byte) 0xD8);
      }
  
      private static boolean isGIF(final byte[] b) {
          return b.length >= 6
                  && b[0] == 'G' && b[1] == 'I'
                  && b[2] == 'F' && b[3] == '8'
                  && (b[4] == '7' || b[4] == '9') && b[5] == 'a';
      }
  
      private static boolean isPNG(final byte[] b) {
          return b.length >= 8
                  && (b[0] == (byte) 137 && b[1] == (byte) 80
                  && b[2] == (byte) 78 && b[3] == (byte) 71
                  && b[4] == (byte) 13 && b[5] == (byte) 10
                  && b[6] == (byte) 26 && b[7] == (byte) 10);
      }
  
      private static boolean isBMP(final byte[] b) {
          return b.length >= 2
                  && (b[0] == 0x42) && (b[1] == 0x4d);
      }
  
      /**
       * 判断bitmap对象是否为空
       *
       * @param src 源图片
       * @return {@code true}: 是<br>{@code false}: 否
       */
      private static boolean isEmptyBitmap(final Bitmap src) {
          return src == null || src.getWidth() == 0 || src.getHeight() == 0;
      }
  
      ///////////////////////////////////////////////////////////////////////////
      // 下方和压缩有关
      ///////////////////////////////////////////////////////////////////////////
  
      /**
       * 按缩放压缩
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(final Bitmap src, final int newWidth, final int newHeight) {
          return scale(src, newWidth, newHeight, false);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src       源图片
       * @param newWidth  新宽度
       * @param newHeight 新高度
       * @param recycle   是否回收
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(final Bitmap src, final int newWidth, final int newHeight, final boolean recycle) {
          return scale(src, newWidth, newHeight, recycle);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(final Bitmap src, final float scaleWidth, final float scaleHeight) {
          return scale(src, scaleWidth, scaleHeight, false);
      }
  
      /**
       * 按缩放压缩
       *
       * @param src         源图片
       * @param scaleWidth  缩放宽度倍数
       * @param scaleHeight 缩放高度倍数
       * @param recycle     是否回收
       * @return 缩放压缩后的图片
       */
      public static Bitmap compressByScale(final Bitmap src, final float scaleWidth, final float scaleHeight, final boolean recycle) {
          return scale(src, scaleWidth, scaleHeight, recycle);
      }
  
      /**
       * 按质量压缩
       *
       * @param src     源图片
       * @param quality 质量
       * @return 质量压缩后的图片
       */
      public static Bitmap compressByQuality(final Bitmap src, @IntRange(from = 0, to = 100) final int quality) {
          return compressByQuality(src, quality, false);
      }
  
      /**
       * 按质量压缩
       *
       * @param src     源图片
       * @param quality 质量
       * @param recycle 是否回收
       * @return 质量压缩后的图片
       */
      public static Bitmap compressByQuality(final Bitmap src, @IntRange(from = 0, to = 100) final int quality, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          src.compress(Bitmap.CompressFormat.JPEG, quality, baos);
          byte[] bytes = baos.toByteArray();
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
      }
  
      /**
       * 按质量压缩
       *
       * @param src         源图片
       * @param maxByteSize 允许最大值字节数
       * @return 质量压缩压缩过的图片
       */
      public static Bitmap compressByQuality(final Bitmap src, final long maxByteSize) {
          return compressByQuality(src, maxByteSize, false);
      }
  
      /**
       * 按质量压缩
       *
       * @param src         源图片
       * @param maxByteSize 允许最大值字节数
       * @param recycle     是否回收
       * @return 质量压缩压缩过的图片
       */
      public static Bitmap compressByQuality(final Bitmap src, final long maxByteSize, final boolean recycle) {
          if (isEmptyBitmap(src) || maxByteSize <= 0) return null;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
          byte[] bytes;
          if (baos.size() <= maxByteSize) {// 最好质量的不大于最大字节，则返回最佳质量
              bytes = baos.toByteArray();
          } else {
              baos.reset();
              src.compress(Bitmap.CompressFormat.JPEG, 0, baos);
              if (baos.size() >= maxByteSize) { // 最差质量不小于最大字节，则返回最差质量
                  bytes = baos.toByteArray();
              } else {
                  // 二分法寻找最佳质量
                  int st = 0;
                  int end = 100;
                  int mid = 0;
                  while (st < end) {
                      mid = (st + end) / 2;
                      baos.reset();
                      src.compress(Bitmap.CompressFormat.JPEG, mid, baos);
                      int len = baos.size();
                      if (len == maxByteSize) {
                          break;
                      } else if (len > maxByteSize) {
                          end = mid - 1;
                      } else {
                          st = mid + 1;
                      }
                  }
                  if (end == mid - 1) {
                      baos.reset();
                      src.compress(Bitmap.CompressFormat.JPEG, st, baos);
                  }
                  bytes = baos.toByteArray();
              }
          }
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
      }
  
      /**
       * 按采样大小压缩
       *
       * @param src        源图片
       * @param sampleSize 采样率大小
       * @return 按采样率压缩后的图片
       */
  
      public static Bitmap compressBySampleSize(final Bitmap src, final int sampleSize) {
          return compressBySampleSize(src, sampleSize, false);
      }
  
      /**
       * 按采样大小压缩
       *
       * @param src        源图片
       * @param sampleSize 采样率大小
       * @param recycle    是否回收
       * @return 按采样率压缩后的图片
       */
      public static Bitmap compressBySampleSize(final Bitmap src, final int sampleSize, final boolean recycle) {
          if (isEmptyBitmap(src)) return null;
          BitmapFactory.Options options = new BitmapFactory.Options();
          options.inSampleSize = sampleSize;
          ByteArrayOutputStream baos = new ByteArrayOutputStream();
          src.compress(Bitmap.CompressFormat.JPEG, 100, baos);
          byte[] bytes = baos.toByteArray();
          if (recycle && !src.isRecycled()) src.recycle();
          return BitmapFactory.decodeByteArray(bytes, 0, bytes.length, options);
      }
  
      private static File getFileByPath(final String filePath) {
          return isSpace(filePath) ? null : new File(filePath);
      }
  
      private static boolean createFileByDeleteOldFile(final File file) {
          if (file == null) return false;
          if (file.exists() && !file.delete()) return false;
          if (!createOrExistsDir(file.getParentFile())) return false;
          try {
              return file.createNewFile();
          } catch (IOException e) {
              e.printStackTrace();
              return false;
          }
      }
  
      private static boolean createOrExistsDir(final File file) {
          // 如果存在，是目录则返回true，是文件则返回false，不存在则返回是否创建成功
          return file != null && (file.exists() ? file.isDirectory() : file.mkdirs());
      }
  
      private static boolean isSpace(final String s) {
          if (s == null) return true;
          for (int i = 0, len = s.length(); i < len; ++i) {
              if (!Character.isWhitespace(s.charAt(i))) {
                  return false;
              }
          }
          return true;
      }
  
      /**
       * 计算采样大小
       *
       * @param options   选项
       * @param maxWidth  最大宽度
       * @param maxHeight 最大高度
       * @return 采样大小
       */
      private static int calculateInSampleSize(final BitmapFactory.Options options, final int maxWidth, final int maxHeight) {
          if (maxWidth == 0 || maxHeight == 0) return 1;
          int height = options.outHeight;
          int width = options.outWidth;
          int inSampleSize = 1;
          while ((height >>= 1) > maxHeight && (width >>= 1) > maxWidth) {
              inSampleSize <<= 1;
          }
          return inSampleSize;
      }
  }
  