barinsta/app/src/main/java/awais/instagrabber/utils/ProcessPhoenix.java

112 lines
4.4 KiB
Java

/*
* Copyright (C) 2014 Jake Wharton
*
* 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 awais.instagrabber.utils;
import android.app.Activity;
import android.app.ActivityManager;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.os.Process;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK;
import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
/**
* Process Phoenix facilitates restarting your application process. This should only be used for
* things like fundamental state changes in your debug builds (e.g., changing from staging to
* production).
* <p>
* Trigger process recreation by calling {@link #triggerRebirth} with a {@link Context} instance.
*/
public final class ProcessPhoenix extends Activity {
private static final String KEY_RESTART_INTENTS = "phoenix_restart_intents";
/**
* Call to restart the application process using the {@linkplain Intent#CATEGORY_DEFAULT default}
* activity as an intent.
* <p>
* Behavior of the current process after invoking this method is undefined.
*/
public static void triggerRebirth(Context context) {
triggerRebirth(context, getRestartIntent(context));
}
/**
* Call to restart the application process using the specified intents.
* <p>
* Behavior of the current process after invoking this method is undefined.
*/
public static void triggerRebirth(Context context, Intent... nextIntents) {
Intent intent = new Intent(context, ProcessPhoenix.class);
intent.addFlags(FLAG_ACTIVITY_NEW_TASK); // In case we are called with non-Activity context.
intent.putParcelableArrayListExtra(KEY_RESTART_INTENTS, new ArrayList<>(Arrays.asList(nextIntents)));
context.startActivity(intent);
if (context instanceof Activity) {
((Activity) context).finish();
}
Runtime.getRuntime().exit(0); // Kill kill kill!
}
private static Intent getRestartIntent(Context context) {
String packageName = context.getPackageName();
Intent defaultIntent = context.getPackageManager().getLaunchIntentForPackage(packageName);
if (defaultIntent != null) {
defaultIntent.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);
return defaultIntent;
}
throw new IllegalStateException("Unable to determine default activity for "
+ packageName
+ ". Does an activity specify the DEFAULT category in its intent filter?");
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
ArrayList<Intent> intents = getIntent().getParcelableArrayListExtra(KEY_RESTART_INTENTS);
startActivities(intents.toArray(new Intent[intents.size()]));
finish();
Runtime.getRuntime().exit(0); // Kill kill kill!
}
/**
* Checks if the current process is a temporary Phoenix Process.
* This can be used to avoid initialisation of unused resources or to prevent running code that
* is not multi-process ready.
*
* @return true if the current process is a temporary Phoenix Process
*/
public static boolean isPhoenixProcess(Context context) {
int currentPid = Process.myPid();
ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
List<ActivityManager.RunningAppProcessInfo> runningProcesses = manager.getRunningAppProcesses();
if (runningProcesses != null) {
for (ActivityManager.RunningAppProcessInfo processInfo : runningProcesses) {
if (processInfo.pid == currentPid && processInfo.processName.endsWith(":phoenix")) {
return true;
}
}
}
return false;
}
}