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/*
* Copyright (C) 2010, T-Mobile USA, Inc.
*
* 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;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.content.res.CustomTheme;
import android.util.Log;
import android.app.ActivityManager;
import android.os.SystemClock;
public class AppsLaunchFailureReceiver extends BroadcastReceiver {
private static final int FAILURES_THRESHOLD = 5;
private static final int EXPIRATION_TIME_IN_MILLISECONDS = 30000; // 30 seconds
private int mFailuresCount = 0;
private long mStartTime = 0;
// This function implements the following logic.
// If after a theme was applied the number of application launch failures
// at any moment was equal to FAILURES_THRESHOLD
// in less than EXPIRATION_TIME_IN_MILLISECONDS
// the default theme is applied unconditionally.
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (action.equals(Intent.ACTION_APP_LAUNCH_FAILURE)) {
long currentTime = SystemClock.uptimeMillis();
if (currentTime - mStartTime > EXPIRATION_TIME_IN_MILLISECONDS) {
// reset both the count and the timer
mStartTime = currentTime;
mFailuresCount = 0;
}
if (mFailuresCount <= FAILURES_THRESHOLD) {
mFailuresCount++;
if (mFailuresCount == FAILURES_THRESHOLD) {
CustomTheme defaultTheme = CustomTheme.getSystemTheme();
ActivityManager am = (ActivityManager)context.getSystemService(Context.ACTIVITY_SERVICE);
Configuration currentConfig = am.getConfiguration();
currentConfig.customTheme = new CustomTheme(
defaultTheme.getThemeId(),
defaultTheme.getThemePackageName());
am.updateConfiguration(currentConfig);
}
}
} else if (action.equals(Intent.ACTION_APP_LAUNCH_FAILURE_RESET)) {
mFailuresCount = 0;
mStartTime = SystemClock.uptimeMillis();
} else if (action.equals(Intent.ACTION_PACKAGE_ADDED) ||
action.equals(Intent.ACTION_PACKAGE_REMOVED)) {
mFailuresCount = 0;
mStartTime = SystemClock.uptimeMillis();
}
}
}
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