/*
* Copyright 2014 Google Inc. All rights reserved.
*
* 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.google.samples.apps.iosched.ui.widget;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.SeekBar;
public class NumberRatingBar extends SeekBar {
private OnSeekBarChangeListener mUserSeekBarChangeListener;
public NumberRatingBar(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
super.setOnSeekBarChangeListener(mSeekBarChangeListener);
updateSecondaryProgress();
setThumb(null);
}
public NumberRatingBar(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public NumberRatingBar(Context context) {
this(context, null, 0);
}
@Override
public void setOnSeekBarChangeListener(OnSeekBarChangeListener listener) {
mUserSeekBarChangeListener = listener;
}
private OnSeekBarChangeListener mSeekBarChangeListener = new OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
updateSecondaryProgress();
if (mUserSeekBarChangeListener != null) {
mUserSeekBarChangeListener.onProgressChanged(seekBar, progress, fromUser);
}
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
if (mUserSeekBarChangeListener != null) {
mUserSeekBarChangeListener.onStartTrackingTouch(seekBar);
}
}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
if (mUserSeekBarChangeListener != null) {
mUserSeekBarChangeListener.onStopTrackingTouch(seekBar);
}
}
};
@Override
public boolean onTouchEvent(MotionEvent event) {
// A delectable hack.
event.offsetLocation(getWidth() / 5, 0);
return super.onTouchEvent(event);
}
private void updateSecondaryProgress() {
// Another delectable hack.
setSecondaryProgress(getProgress() - 1);
}
}