112 lines
4.4 KiB
Java
112 lines
4.4 KiB
Java
/*
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* Copyright (C) 2014 Jake Wharton
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package awais.instagrabber.utils;
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import android.app.Activity;
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import android.app.ActivityManager;
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import android.content.Context;
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import android.content.Intent;
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import android.os.Bundle;
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import android.os.Process;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import static android.content.Intent.FLAG_ACTIVITY_CLEAR_TASK;
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import static android.content.Intent.FLAG_ACTIVITY_NEW_TASK;
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/**
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* Process Phoenix facilitates restarting your application process. This should only be used for
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* things like fundamental state changes in your debug builds (e.g., changing from staging to
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* production).
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* <p>
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* Trigger process recreation by calling {@link #triggerRebirth} with a {@link Context} instance.
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*/
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public final class ProcessPhoenix extends Activity {
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private static final String KEY_RESTART_INTENTS = "phoenix_restart_intents";
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/**
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* Call to restart the application process using the {@linkplain Intent#CATEGORY_DEFAULT default}
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* activity as an intent.
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* <p>
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* Behavior of the current process after invoking this method is undefined.
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*/
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public static void triggerRebirth(Context context) {
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triggerRebirth(context, getRestartIntent(context));
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}
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/**
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* Call to restart the application process using the specified intents.
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* <p>
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* Behavior of the current process after invoking this method is undefined.
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*/
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public static void triggerRebirth(Context context, Intent... nextIntents) {
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Intent intent = new Intent(context, ProcessPhoenix.class);
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intent.addFlags(FLAG_ACTIVITY_NEW_TASK); // In case we are called with non-Activity context.
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intent.putParcelableArrayListExtra(KEY_RESTART_INTENTS, new ArrayList<>(Arrays.asList(nextIntents)));
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context.startActivity(intent);
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if (context instanceof Activity) {
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((Activity) context).finish();
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}
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Runtime.getRuntime().exit(0); // Kill kill kill!
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}
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private static Intent getRestartIntent(Context context) {
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String packageName = context.getPackageName();
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Intent defaultIntent = context.getPackageManager().getLaunchIntentForPackage(packageName);
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if (defaultIntent != null) {
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defaultIntent.addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);
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return defaultIntent;
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}
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throw new IllegalStateException("Unable to determine default activity for "
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+ packageName
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+ ". Does an activity specify the DEFAULT category in its intent filter?");
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}
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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ArrayList<Intent> intents = getIntent().getParcelableArrayListExtra(KEY_RESTART_INTENTS);
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startActivities(intents.toArray(new Intent[intents.size()]));
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finish();
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Runtime.getRuntime().exit(0); // Kill kill kill!
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}
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/**
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* Checks if the current process is a temporary Phoenix Process.
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* This can be used to avoid initialisation of unused resources or to prevent running code that
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* is not multi-process ready.
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*
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* @return true if the current process is a temporary Phoenix Process
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*/
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public static boolean isPhoenixProcess(Context context) {
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int currentPid = Process.myPid();
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ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
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List<ActivityManager.RunningAppProcessInfo> runningProcesses = manager.getRunningAppProcesses();
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if (runningProcesses != null) {
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for (ActivityManager.RunningAppProcessInfo processInfo : runningProcesses) {
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if (processInfo.pid == currentPid && processInfo.processName.endsWith(":phoenix")) {
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return true;
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}
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}
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}
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return false;
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}
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}
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