Android Open Source - Rss-App-for-tumblr Color Picker Dialog Preference

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License

The source code is released under:

GNU General Public License

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Java Source Code

/**
 * Ace Shooting//from  ww w .  j  a v  a  2s. c  om
 *
 * Copyright (c) 2012 Stefan Handschuh
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 *
 */

package com.aceshooting.rssapp.widget;

import android.content.Context;
import android.preference.DialogPreference;
import android.util.AttributeSet;
import android.view.View;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;

import com.aceshooting.rssapp.R;

public class ColorPickerDialogPreference extends DialogPreference {
  private SeekBar redSeekBar;
  
  private SeekBar greenSeekBar;
  
  private SeekBar blueSeekBar;
  
  private SeekBar transparencySeekBar;
  
  int color;
  
  public ColorPickerDialogPreference(Context context, AttributeSet attrs) {
    super(context, attrs);
    color = SparseRSSAppWidgetProvider.STANDARD_BACKGROUND;
  }
  
  @Override
  protected View onCreateDialogView() {
    final View view = super.onCreateDialogView();
    
    view.setBackgroundColor(color);
    
    redSeekBar = (SeekBar) view.findViewById(R.id.seekbar_red);
    greenSeekBar = (SeekBar) view.findViewById(R.id.seekbar_green);
    blueSeekBar = (SeekBar) view.findViewById(R.id.seekbar_blue);
    transparencySeekBar = (SeekBar) view.findViewById(R.id.seekbar_transparency);
    
    int _color = color;
    
    transparencySeekBar.setProgress(((_color / 0x01000000)*100)/255);
    _color %= 0x01000000;
    redSeekBar.setProgress(((_color / 0x00010000)*100)/255);
    _color %= 0x00010000;
    greenSeekBar.setProgress(((_color / 0x00000100)*100)/255);
    _color %= 0x00000100;
    blueSeekBar.setProgress((_color*100)/255);
    
    OnSeekBarChangeListener onSeekBarChangeListener = new OnSeekBarChangeListener() {

      public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        int red = (redSeekBar.getProgress()*255) / 100;
        
        int green = (greenSeekBar.getProgress()*255) / 100;
        
        int blue = (blueSeekBar.getProgress()*255) / 100;
        
        int transparency = (transparencySeekBar.getProgress()*255) / 100;
        
        color = transparency*0x01000000 + red*0x00010000 + green*0x00000100 + blue;
        view.setBackgroundColor(color);
      }

      public void onStartTrackingTouch(SeekBar seekBar) {
        
      }

      public void onStopTrackingTouch(SeekBar seekBar) {
        
      }
    };
    
    redSeekBar.setOnSeekBarChangeListener(onSeekBarChangeListener);
    greenSeekBar.setOnSeekBarChangeListener(onSeekBarChangeListener);
    blueSeekBar.setOnSeekBarChangeListener(onSeekBarChangeListener);
    transparencySeekBar.setOnSeekBarChangeListener(onSeekBarChangeListener);
    return view;
  }

  @Override
  protected void onDialogClosed(boolean positiveResult) {
    if (positiveResult) {
      persistInt(color);
    }
    super.onDialogClosed(positiveResult);
  }

}

Java Source Code List