Android Open Source - MovingPolygons Seek Bar Preference

• Back to WallPaper/screen  ↑

From Project

Back to project page MovingPolygons.

License

The source code is released under:

GNU General Public License

Java Source Code

// Moving Polygons Live Wallpaper
// Copyright (C) 2013 LogicallyCreative.org
///*from  www.jav a  2  s .c o  m*/
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package org.logicallycreative.mplw.widgets;

import org.logicallycreative.mplw.R;

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

// TODO: Find a better way to make this class re-usable.
// I am not a fan of having sub-classes based off of this. If there is a better way of
// doing this without having to have sub-classes for each settings, then by all means,
// do it.
public abstract class SeekBarPreference extends DialogPreference {
  private SeekBar preferenceSeekbar;
  private TextView valueTextView;
  private int preferenceValue = 0;
  private int minimum = 0;
  private int maximum = 100;

  public SeekBarPreference(Context context, AttributeSet attrs) {
    super(context, attrs);

    setPersistent(false);
    setDialogLayoutResource(R.layout.seekbar_preference_layout);
  }

  @Override
  public void onBindDialogView(View view) {
    super.onBindDialogView(view);

    preferenceSeekbar = (SeekBar) view.findViewById(R.id.seekbarWidget);
    valueTextView = (TextView) view.findViewById(R.id.seekbarValue);
    setupSeekbar();
  }

  @Override
  public void onDialogClosed(boolean positiveResult) {
    super.onDialogClosed(positiveResult);

    if (!positiveResult)
      return;

    savePreferenceValue(preferenceValue);
  }

  protected abstract int getMinimumValue();

  protected abstract int getMaximumValue();

  protected abstract int getPreferenceValue();

  protected abstract void savePreferenceValue(int value);

  private void setupSeekbar() {
    minimum = getMinimumValue();
    maximum = getMaximumValue();

    setupSeekbarRange();
    setupSeekbarValue();
    setupSeekbarListeners();
  }

  private void setupSeekbarRange() {
    final int seekbarRange = maximum - minimum;
    preferenceSeekbar.setMax(seekbarRange);
  }

  private void setupSeekbarValue() {
    preferenceValue = getPreferenceValue();
    final int seekBarProgress = preferenceValue - minimum;

    valueTextView.setText(String.valueOf(preferenceValue));
    preferenceSeekbar.setProgress(seekBarProgress);
  }

  private void setupSeekbarListeners() {
    SeekBar.OnSeekBarChangeListener listener = new SeekBar.OnSeekBarChangeListener() {
      @Override
      public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        int currentValue = progress + minimum;

        preferenceValue = currentValue;
        valueTextView.setText(String.valueOf(currentValue));
      }

      @Override
      public void onStartTrackingTouch(SeekBar seekBar) {}

      @Override
      public void onStopTrackingTouch(SeekBar seekBar) {}
    };

    preferenceSeekbar.setOnSeekBarChangeListener(listener);
  }
}

Java Source Code List

• Back to WallPaper/screen  ↑