not always restart activity on Android 12

[samlu]

I am using v2.1.2 and found that the activity won't be restarted on Android 12 sometimes.

When the problem happens, I notice the following errors:

I/ActivityTaskManager: START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10008000 pkg=<my_pkg_name> cmp=<my_activity_class_name>} from uid 10293

W/ActivityTaskManager: Tried to set launchTime (0) < mLastActivityLaunchTime (202472441)

W/ActivityTaskManager: Exception when starting activity <my_activity_class_name>
    android.os.DeadObjectException
        at android.os.BinderProxy.transactNative(Native Method)
        at android.os.BinderProxy.transact(BinderProxy.java:571)
        at android.app.IApplicationThread$Stub$Proxy.scheduleTransaction(IApplicationThread.java:2732)

W/ActivityTaskManager: Failed to send top-resumed=true to ActivityRecord{9199e95 u0 <my_activity_class_name> t1186}
    android.os.DeadObjectException
        at android.os.BinderProxy.transactNative(Native Method)
        at android.os.BinderProxy.transact(BinderProxy.java:571)
        at android.app.IApplicationThread$Stub$Proxy.scheduleTransaction(IApplicationThread.java:2732)

W/ActivityTaskManager: Failed to send top-resumed=false to ActivityRecord{9199e95 u0 <my_activity_class_name> t1186}
    android.os.DeadObjectException
        at android.os.BinderProxy.transactNative(Native Method)
        at android.os.BinderProxy.transact(BinderProxy.java:571)
        at android.app.IApplicationThread$Stub$Proxy.scheduleTransaction(IApplicationThread.java:2732)

I/ActivityTaskManager: Restarting because process died: ActivityRecord{9199e95 u0 <my_activity_class_name> t1186}

E/ActivityTaskManager: Second failure launching <my_activity_class_name>, giving up
    android.os.DeadObjectException
        at android.os.BinderProxy.transactNative(Native Method)
        at android.os.BinderProxy.transact(BinderProxy.java:571)
        at android.app.IApplicationThread$Stub$Proxy.scheduleTransaction(IApplicationThread.java:2732)

[adiba-gs]

I noticed this issue as well @samlu did you find a suitable workaround?

[gs-ts]

can you please state if you noticed this issue on an actual device or emulator? I tested on an emulator with Android 12 and it works.

[Marko2407]

here as well, on emulator works fine, but on actuals devices (specifically Samsung Galaxy A72) sometimes doesn't restart the app, and for UX looks like app crash.

[ThazinSoe-tzs]

Emulator is working well but frequently samsung Galaxy Note 10 Lite cannot restart the app. Is there any way to workaround solution for this?

[ThazinSoe-tzs]

Workaround solution for me is to use following implementation project(':process-phoenix') instead of implementation 'com.jakewharton:process-phoenix:2.1.2'

It works well in Android 12 Samsung phones.

[samlu]

Here is my solution. Search "ysl" to see the changes. I have tested it on several Android 12 devices without any issues.

/*
 * 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 com.jakewharton.processphoenix;

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 {
  // added by ysl
  private final Handler m_handler = new Handler(Looper.getMainLooper());
  private Intent[] m_itLaunchs;
  // end of ysl
  
  private static final String KEY_RESTART_INTENTS = "phoenix_restart_intents";
  private static final String KEY_MAIN_PROCESS_PID = "phoenix_main_process_pid";

  /**
   * 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) {
    if (nextIntents.length < 1) {
      throw new IllegalArgumentException("intents cannot be empty");
    }
    // create a new task for the first activity.
    nextIntents[0].addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);

    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)));
    intent.putExtra(KEY_MAIN_PROCESS_PID, Process.myPid());
    context.startActivity(intent);
  }

  private static Intent getRestartIntent(Context context) {
    String packageName = context.getPackageName();
    Intent defaultIntent = context.getPackageManager().getLaunchIntentForPackage(packageName);
    if (defaultIntent != null) {
      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);

    Process.killProcess(getIntent().getIntExtra(KEY_MAIN_PROCESS_PID, -1)); // Kill original main process

    ArrayList<Intent> intents = getIntent().getParcelableArrayListExtra(KEY_RESTART_INTENTS);
    /* ysl: move to onPostCreate()
    startActivities(intents.toArray(new Intent[intents.size()]));
    finish();
    */
    
    // added by ysl
    setContentView(new FrameLayout(this)); // not sure if this line is necessary

    m_itLaunchs = intents.toArray(new Intent[0]);
    // end of ysl

    /* ysl: move to onDestroy()    
    Runtime.getRuntime().exit(0); // Kill kill kill!
    */
  }

  // added by ysl
  @Override protected void
  onPostCreate(Bundle savedInstanceState)
  {
    super.onPostCreate(savedInstanceState);

    m_handler.post(new Runnable() {
      @Override public void
      run()
      {
        startActivities(m_itLaunchs);
        finish();
      }
    });
  }
  
  @Override protected void
  onDestroy()
  {
    m_handler.removeCallbacks(null);

    Runtime.getRuntime().exit(0); // Kill kill kill!

    super.onDestroy();
  }
  // end of ysl
  
  /**
   * 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;
  }
}

[ThazinSoe-tzs]

Thank you so much for your help.

On Tue, May 17, 2022, 10:49 AM Sam Lu @.***> wrote:

Here is my solution. Search "ysl" to see the changes. I have tested it on several Android 12 devices without any issues.

/*

• 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 com.jakewharton.processphoenix;

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).
• Trigger process recreation by calling @.*** #triggerRebirth} with a @.*** Context} instance. */ public final class ProcessPhoenix extends Activity { // added by ysl private final Handler m_handler = new Handler(Looper.getMainLooper()); private Intent[] m_itLaunchs; // end of ysl

private static final String KEY_RESTART_INTENTS = "phoenix_restart_intents"; private static final String KEY_MAIN_PROCESS_PID = "phoenix_main_process_pid";

/**

• Call to restart the application process using the @.*** Intent#CATEGORY_DEFAULT default}
• activity as an intent.
• 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.
• Behavior of the current process after invoking this method is undefined. */ public static void triggerRebirth(Context context, Intent... nextIntents) { if (nextIntents.length < 1) { throw new IllegalArgumentException("intents cannot be empty"); } // create a new task for the first activity. nextIntents[0].addFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_CLEAR_TASK);

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)));
intent.putExtra(KEY_MAIN_PROCESS_PID, Process.myPid());
context.startActivity(intent);

}

private static Intent getRestartIntent(Context context) { String packageName = context.getPackageName(); Intent defaultIntent = context.getPackageManager().getLaunchIntentForPackage(packageName); if (defaultIntent != null) { 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);

Process.killProcess(getIntent().getIntExtra(KEY_MAIN_PROCESS_PID, -1)); // Kill original main process

ArrayList<Intent> intents = getIntent().getParcelableArrayListExtra(KEY_RESTART_INTENTS);
/* ysl: move to onPostCreate()
startActivities(intents.toArray(new Intent[intents.size()]));
finish();
*/

// added by ysl
setContentView(new FrameLayout(this)); // not sure if this line is necessary

m_itLaunchs = intents.toArray(new Intent[0]);
// end of ysl

/* ysl: move to onDestroy()
Runtime.getRuntime().exit(0); // Kill kill kill!
*/

}

// added by ysl @Override protected void onPostCreate(Bundle savedInstanceState) { super.onPostCreate(savedInstanceState);

m_handler.post(new Runnable() {
  @Override public void
  run()
  {
    startActivities(m_itLaunchs);
    finish();
  }
});

}

@Override protected void onDestroy() { m_handler.removeCallbacks(null);

Runtime.getRuntime().exit(0); // Kill kill kill!

super.onDestroy();

} // end of ysl

/**

• 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; } }

— Reply to this email directly, view it on GitHub https://github.com/JakeWharton/ProcessPhoenix/issues/47#issuecomment-1128377615, or unsubscribe https://github.com/notifications/unsubscribe-auth/AGVIVH7ZWA3Q2ANSQRGFL3TVKMJONANCNFSM5HXMRI3A . You are receiving this because you commented.Message ID: @.***>

[laurenyew-nytimes]

Also noticed 2.1.2 isn't completely restarting the app from scratch. When I use triggerRebirth(applicationContext), app is crashed and closed, but it's still running in the background. 2.0.0 doesn't have this issue and I'm running an Android 12 device.

[russellhoff]

It's happening in my app targeting api level 33

[samlu]

I don't see any issues with the app that targets the sdk 33. Did you apply my patch code (https://github.com/JakeWharton/ProcessPhoenix/issues/47#issuecomment-1128377615)?

[russellhoff]

@samlu what am I supposed to do? Create a new class which replaces the original (library-provided) ProccessPhoenix?