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A library jar that provides APIs for Applications written for the Google Android Platform.
/*
* 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.server.am;
import android.app.ActivityOptions;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.SystemClock;
import android.util.ArrayMap;
import android.util.MutableLong;
import android.util.TimeUtils;
import android.util.proto.ProtoOutputStream;
import android.util.proto.ProtoUtils;
import java.io.PrintWriter;
/**
* Tracks the time a user spent in an app.
*/
public class AppTimeTracker {
private final PendingIntent mReceiver;
private long mTotalTime;
private final ArrayMap mPackageTimes = new ArrayMap<>();
private long mStartedTime;
private String mStartedPackage;
private MutableLong mStartedPackageTime;
public AppTimeTracker(PendingIntent receiver) {
mReceiver = receiver;
}
public void start(String packageName) {
long now = SystemClock.elapsedRealtime();
if (mStartedTime == 0) {
mStartedTime = now;
}
if (!packageName.equals(mStartedPackage)) {
if (mStartedPackageTime != null) {
long elapsedTime = now - mStartedTime;
mStartedPackageTime.value += elapsedTime;
mTotalTime += elapsedTime;
}
mStartedPackage = packageName;
mStartedPackageTime = mPackageTimes.get(packageName);
if (mStartedPackageTime == null) {
mStartedPackageTime = new MutableLong(0);
mPackageTimes.put(packageName, mStartedPackageTime);
}
}
}
public void stop() {
if (mStartedTime != 0) {
long elapsedTime = SystemClock.elapsedRealtime() - mStartedTime;
mTotalTime += elapsedTime;
if (mStartedPackageTime != null) {
mStartedPackageTime.value += elapsedTime;
}
mStartedPackage = null;
mStartedPackageTime = null;
}
}
public void deliverResult(Context context) {
stop();
Bundle extras = new Bundle();
extras.putLong(ActivityOptions.EXTRA_USAGE_TIME_REPORT, mTotalTime);
Bundle pkgs = new Bundle();
for (int i=mPackageTimes.size()-1; i>=0; i--) {
pkgs.putLong(mPackageTimes.keyAt(i), mPackageTimes.valueAt(i).value);
}
extras.putBundle(ActivityOptions.EXTRA_USAGE_TIME_REPORT_PACKAGES, pkgs);
Intent fillinIntent = new Intent();
fillinIntent.putExtras(extras);
try {
mReceiver.send(context, 0, fillinIntent);
} catch (PendingIntent.CanceledException e) {
}
}
public void dumpWithHeader(PrintWriter pw, String prefix, boolean details) {
pw.print(prefix); pw.print("AppTimeTracker #");
pw.print(Integer.toHexString(System.identityHashCode(this)));
pw.println(":");
dump(pw, prefix + " ", details);
}
public void dump(PrintWriter pw, String prefix, boolean details) {
pw.print(prefix); pw.print("mReceiver="); pw.println(mReceiver);
pw.print(prefix); pw.print("mTotalTime=");
TimeUtils.formatDuration(mTotalTime, pw);
pw.println();
for (int i = 0; i < mPackageTimes.size(); i++) {
pw.print(prefix); pw.print("mPackageTime:"); pw.print(mPackageTimes.keyAt(i));
pw.print("=");
TimeUtils.formatDuration(mPackageTimes.valueAt(i).value, pw);
pw.println();
}
if (details && mStartedTime != 0) {
pw.print(prefix); pw.print("mStartedTime=");
TimeUtils.formatDuration(SystemClock.elapsedRealtime(), mStartedTime, pw);
pw.println();
pw.print(prefix); pw.print("mStartedPackage="); pw.println(mStartedPackage);
}
}
public void dumpDebug(ProtoOutputStream proto, long fieldId, boolean details) {
final long token = proto.start(fieldId);
proto.write(AppTimeTrackerProto.RECEIVER, mReceiver.toString());
proto.write(AppTimeTrackerProto.TOTAL_DURATION_MS, mTotalTime);
for (int i=0; i