content: package com.adafruit.bluefruit.le.connect.app.neopixel;
  
  import android.content.Intent;
  import android.graphics.Color;
  import android.os.Bundle;
  import android.support.v7.app.AppCompatActivity;
  import android.view.View;
  import android.widget.Button;
  import android.widget.TextView;
  
  import com.adafruit.bluefruit.le.connect.R;
  import com.larswerkman.holocolorpicker.ColorPicker;
  import com.larswerkman.holocolorpicker.SaturationBar;
  import com.larswerkman.holocolorpicker.ValueBar;
  
  public class NeopixelColorPickerActivity extends AppCompatActivity implements ColorPicker.OnColorChangedListener {
  
      // Result return
      public static final String kActivityParameter_SelectedColorKey = "kActivityParameter_SelectedColorKey";
      public static final String kActivityResult_SelectedColorResultKey = "kActivityResult_SelectedColorResultKey";
  
      // UI
      private ColorPicker mColorPicker;
      private View mRgbColorView;
      private TextView mRgbTextView;
  
      private int mSelectedColor;
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
  //        setContentView(R.layout.activity_neopixel_colorpicker);
          setContentView(R.layout.activity_color_picker);
  
          Intent intent = getIntent();
          mSelectedColor = intent.getIntExtra(kActivityParameter_SelectedColorKey, Color.WHITE);
  
          // UI
          mRgbColorView = findViewById(R.id.rgbColorView);
          mRgbTextView = (TextView) findViewById(R.id.rgbTextView);
  
          SaturationBar mSaturationBar = (SaturationBar) findViewById(R.id.saturationbar);
          ValueBar mValueBar = (ValueBar) findViewById(R.id.valuebar);
          mColorPicker = (ColorPicker) findViewById(R.id.colorPicker);
          if (mColorPicker != null) {
              mColorPicker.addSaturationBar(mSaturationBar);
              mColorPicker.addValueBar(mValueBar);
              mColorPicker.setOnColorChangedListener(this);
  
              mColorPicker.setOldCenterColor(mSelectedColor);
              mColorPicker.setColor(mSelectedColor);
          }
          onColorChanged(mSelectedColor);
  
          Button sendButton = (Button) findViewById(R.id.sendButton);
          sendButton.setText(R.string.neopixel_colorpicker_setcolor);
  
      }
  
      @Override
      public void onColorChanged(int color) {
          // Save selected color
          mSelectedColor = color;
  
          // Update UI
          mRgbColorView.setBackgroundColor(color);
  
          final int r = (color >> 16) & 0xFF;
          final int g = (color >> 8) & 0xFF;
          final int b = (color >> 0) & 0xFF;
          final String text = String.format(getString(R.string.colorpicker_rgbformat), r, g, b);
          mRgbTextView.setText(text);
  
      }
  
      public void onClickSend(View view) {
          Intent output = new Intent();
          output.putExtra(kActivityResult_SelectedColorResultKey, mSelectedColor);
          setResult(RESULT_OK, output);
          finish();
      }
  }
  