content: /*
   *   Copyright (C)  2016 android@19code.com
   *
   *   Licensed under the Apache License, Version 2.0 (the "License");
   *   you may not use this file except in compliance with the License.
   *   You may obtain a copy of the License at
   *
   *       http://www.apache.org/licenses/LICENSE-2.0
   *
   *   Unless required by applicable law or agreed to in writing, software
   *   distributed under the License is distributed on an "AS IS" BASIS,
   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *   See the License for the specific language governing permissions and
   *   limitations under the License.
   */
  
  package com.rsen.github.common;
  
  import android.annotation.TargetApi;
  import android.content.Context;
  import android.content.res.Resources;
  import android.os.Build;
  import android.util.DisplayMetrics;
  import android.view.Display;
  import android.view.WindowManager;
  
  import java.lang.reflect.Field;
  import java.lang.reflect.Method;
  
  /**
   * Create by h4de5ing 2016/5/7 007
   * checked
   */
  public class DensityUtil {
  
      public static int dip2px(Context c, float dpValue) {
          final float scale = c.getResources().getDisplayMetrics().density;
          return (int) (dpValue * scale + 0.5f);
      }
  
      public static int px2dip(Context c, float pxValue) {
          final float scale = c.getResources().getDisplayMetrics().density;
          return (int) (pxValue / scale + 0.5f);
      }
  
  
      public static int px2sp(Context c, float pxValue) {
          float fontScale = c.getResources().getDisplayMetrics().scaledDensity;
          return (int) (pxValue / fontScale + 0.5f);
      }
  
  
      public static int sp2px(Context c, float spValue) {
          float fontScale = c.getResources().getDisplayMetrics().scaledDensity;
          return (int) (spValue * fontScale + 0.5f);
      }
  
      public static int getScreenW(Context c) {
          return c.getResources().getDisplayMetrics().widthPixels;
      }
  
      public static int getScreenH(Context c) {
          return c.getResources().getDisplayMetrics().heightPixels;
      }
  
      @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
      public static int getScreenRealH(Context context) {
          int h;
          WindowManager winMgr = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
          Display display = winMgr.getDefaultDisplay();
          DisplayMetrics dm = new DisplayMetrics();
          if (Build.VERSION.SDK_INT >= 17) {
              display.getRealMetrics(dm);
              h = dm.heightPixels;
          } else {
              try {
                  Method method = Class.forName("android.view.Display").getMethod("getRealMetrics", DisplayMetrics.class);
                  method.invoke(display, dm);
                  h = dm.heightPixels;
              } catch (Exception e) {
                  display.getMetrics(dm);
                  h = dm.heightPixels;
              }
          }
          return h;
      }
  
      public static int getStatusBarH(Context context) {
          Class<?> c;
          Object obj;
          Field field;
          int statusBarHeight = 0;
          try {
              c = Class.forName("com.android.internal.R$dimen");
              obj = c.newInstance();
              field = c.getField("status_bar_height");
              int x = Integer.parseInt(field.get(obj).toString());
              statusBarHeight = context.getResources().getDimensionPixelSize(x);
          } catch (Exception e1) {
              e1.printStackTrace();
          }
          return statusBarHeight;
      }
  
      public static int getNavigationBarrH(Context c) {
          Resources resources = c.getResources();
          int identifier = resources.getIdentifier("navigation_bar_height", "dimen", "android");
          return resources.getDimensionPixelOffset(identifier);
      }
  }
  