Android Open Source - CATaZine-Live Color Picker Dialog Preference

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Back to project page CATaZine-Live.

License

The source code is released under:

GNU General Public License

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Java Source Code

package com.melegy.catazine.widget;
//w  w w .j  a va  2s .  co  m
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.melegy.catazine.R;
import com.melegy.catazine.R.id;

public class ColorPickerDialogPreference extends DialogPreference {

    private SeekBar redSeekBar;
    private SeekBar greenSeekBar;
    private SeekBar blueSeekBar;
    private SeekBar transparencySeekBar;

    private int color;

    public ColorPickerDialogPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        color = WidgetProvider.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() {

            @Override
            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);
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            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