| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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.android.cts.verifier; |
| |
| import android.annotation.TargetApi; |
| import android.content.Context; |
| import android.os.Handler; |
| import android.os.SystemClock; |
| import android.util.AttributeSet; |
| import android.widget.ProgressBar; |
| |
| /** |
| * Can be used to show time outs for events. A progress bar will be displayed to the user. |
| * On calling start, it will start filling up. |
| */ |
| public class TimerProgressBar extends ProgressBar { |
| public TimerProgressBar(Context context) { |
| super(context); |
| setHandler(context); |
| } |
| |
| public TimerProgressBar(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| setHandler(context); |
| } |
| |
| public TimerProgressBar(Context context, AttributeSet attrs, int defStyleAttr) { |
| super(context, attrs, defStyleAttr); |
| setHandler(context); |
| } |
| |
| @TargetApi(21) |
| public TimerProgressBar(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| setHandler(context); |
| } |
| |
| private void setHandler(Context context) { |
| mHandler = new Handler(context.getMainLooper()); |
| } |
| |
| private Handler mHandler; |
| private TimerExpiredCallback mTimerExpiredCallback; |
| private long mStartTime; |
| private long mDuration; |
| private long mStepSize; |
| private boolean mForceComplete; |
| |
| private Runnable mProgressCallback = new Runnable() { |
| @Override |
| public void run() { |
| if (mForceComplete) { |
| TimerProgressBar.this.setProgress(TimerProgressBar.this.getMax()); |
| return; |
| } |
| |
| long currentTime = SystemClock.elapsedRealtime(); |
| int progress = (int) ((currentTime - mStartTime) / mStepSize); |
| progress = Math.min(progress, TimerProgressBar.this.getMax()); |
| TimerProgressBar.this.setProgress(progress); |
| |
| if (mStartTime + mDuration > currentTime) { |
| mHandler.postDelayed(this, mStepSize); |
| } else { |
| if (mTimerExpiredCallback != null) { |
| mTimerExpiredCallback.onTimerExpired(); |
| } |
| } |
| } |
| }; |
| |
| public void start(long duration, long stepSize) { |
| start(duration, stepSize, null); |
| } |
| |
| /** |
| * Start filling up the progress bar. |
| * |
| * @param duration Time in milliseconds the progress bar takes to fill up completely |
| * @param stepSize Time in milliseconds between consecutive updates to progress bar's progress |
| * @param callback Callback that should be executed after the progress bar is filled completely (i.e. timer expires) |
| */ |
| public void start(long duration, long stepSize, TimerExpiredCallback callback) { |
| mDuration = duration; |
| mStepSize = stepSize; |
| mStartTime = SystemClock.elapsedRealtime(); |
| mForceComplete = false; |
| mTimerExpiredCallback = callback; |
| this.setMax((int) (duration / stepSize)); |
| this.setProgress(0); |
| mHandler.post(mProgressCallback); |
| } |
| |
| /** |
| * Fill the progress bar completely. Timer expired callback won't be executed. |
| */ |
| public void forceComplete() { |
| mForceComplete = true; |
| } |
| |
| public interface TimerExpiredCallback { |
| void onTimerExpired(); |
| } |
| |
| } |