在onDestroy之后不再调用onActivityResult [英] onActivityResult no longer being called after onDestroy

问题描述

onActivityResult让我头疼不已.我的小游戏有标题/菜单屏幕.单击新游戏"后，将启动一个活动，该活动将为我的游戏世界创建一个SurfaceView.

onActivityResult is giving me major headaches. My little game has a title / menu screen. Upon clicking "new game" an Activity is launched which creates a SurfaceView for my game world.

进行游戏时，玩家可以进入游戏世界中的建筑物.进入建筑物后，我从SurfaveView启动该特定建筑物的活动.这是一个示例:

When playing, the player can enter buildings in the game world. Upon entering a building I launch the activity for that particular building from my SurfaveView. Here is an example:

   Intent storeIntent = new Intent(mMinerClass, GeneralStore.class);
   storeIntent.putExtra("player", mPlayer.save());   
    ((Activity) mContext).startActivityForResult(storeIntent, Miner.REQUEST_STORE);

mMinerClass是在游戏活动onCreate中定义的:

mMinerClass is defined in the game Activity onCreate:

  mMap .mMinerClass = Miner.this;

mMap是SurfaceView. 我正在传递包含播放器状态的捆绑包.在onActivityResult中，我抓取了商店活动返回的捆绑包并更新了玩家状态.

mMap is the SurfaceView. I'm passing a bundle containing the state of the player. In onActivityResult I grab the bundle returned by the store activity and update the player state.

 public void onActivityResult(int requestCode, int resultCode, Intent intent) {
      Bundle player = intent.getExtras();
      mMap.mSavedPlayer = player;
  }

mSavedPlayer稍后用于设置新播放器状态.

mSavedPlayer is later used to set the new player state.

以上所有方法都可以正常使用

我可以进入商店，购买东西，离开，并且播放器已正确更新.

I can enter stores, buy stuff, leave and the player is updated correctly.

问题在我按下主页"按钮(或某些返回按钮)时出现，并且调用了onDestroy.我的onDestroy方法除了调用super.onDestroy()之外什么也不做.

The problem manifests when I press the Home button (or someyimes back button) and onDestroy gets called. My onDestroy method does nothing besides call super.onDestroy();

在调用onDestroy()之后，不再调用onActivityResult.

After onDestroy() gets called onActivityResult no longer gets called.

所以:

1)我玩游戏，一切都很好.

1) I play the game, everthing works great.

2)我按主页，然后将破坏记为

2) I press home and ondestroy is called

3)通过启动器图标重新启动我的游戏

3) relaunch my game via launcher icon

4)恢复游戏.我仍然可以进入和离开商店，但是不再调用onActivityResult.

4) Resume game. I can still enter and leave stores but onActivityResult is no longer called.

这是一些logcat输出.每次输入相关方法时，我都会记录日志.

Here is some logcat output. I'm logging each time I enter a relevant method.

  App start.  Resuming a saved game
  07-03 00:33:04.759: ERROR/Miner(4014): -->onCreate
  07-03 00:33:04.819: ERROR/Miner(4014): -->onStart
  07-03 00:33:08.329: ERROR/Miner(4014): -->onResume

  Enter store and buy stuff 2 times.  Everything working great.
  07-03 00:33:30.419: ERROR/Miner(4014): -->onPause
  07-03 00:33:31.279: ERROR/Miner(4014): -->onStop
  07-03 00:33:35.069: ERROR/Miner(4014): -->onActivityResult
  07-03 00:33:35.069: ERROR/Miner(4014): -->onRestart
  07-03 00:33:35.069: ERROR/Miner(4014): -->onStart
  07-03 00:33:36.709: ERROR/Miner(4014): -->onResume
  07-03 00:33:42.129: ERROR/Miner(4014): -->onPause
  07-03 00:33:43.289: ERROR/Miner(4014): -->onStop
  07-03 00:33:55.279: ERROR/Miner(4014): -->onActivityResult
  07-03 00:33:55.279: ERROR/Miner(4014): -->onRestart
  07-03 00:33:55.279: ERROR/Miner(4014): -->onStart
  07-03 00:33:56.879: ERROR/Miner(4014): -->onResume

  Back button pressed bringing me to title screen
  07-03 00:35:26.283: ERROR/Miner(4014): -->onPause
  07-03 00:35:27.153: ERROR/Miner(4014): -->onStop
  07-03 00:35:27.333: ERROR/Miner(4014): -->onDestroy

  Resume Game
  07-03 00:36:12.953: ERROR/Miner(4014): -->onCreate
  07-03 00:36:13.003: ERROR/Miner(4014): -->onStart
  07-03 00:36:14.663: ERROR/Miner(4014): -->onResume

  Enter store and buy stuff twice.  No more onActivityResult

  07-03 00:36:52.063: ERROR/Miner(4014): -->onPause
  07-03 00:36:52.863: ERROR/Miner(4014): -->onStop
  07-03 00:36:59.913: ERROR/Miner(4014): -->onRestart
  07-03 00:36:59.913: ERROR/Miner(4014): -->onStart
  07-03 00:37:01.593: ERROR/Miner(4014): -->onResume
  07-03 00:37:23.353: ERROR/Miner(4014): -->onPause
  07-03 00:37:24.173: ERROR/Miner(4014): -->onStop
  07-03 00:37:29.173: ERROR/Miner(4014): -->onRestart
  07-03 00:37:29.173: ERROR/Miner(4014): -->onStart
  07-03 00:37:30.793: ERROR/Miner(4014): -->onResume

我正在通过手机发布此信息，因此请原谅任何愚蠢的错别字.

I'm posting this from my phone so excuse any dumb typos.

我感谢大家对此提供的任何见解.谢谢！

I appreciate any insight y'all can provide regarding this. Thanks!

推荐答案

您应格外注意这一行:

((Activity) mContext).startActivityForResult(storeIntent, Miner.REQUEST_STORE)

您确定mContext是正确的活动吗?我怀疑这不是当前活动，而是对另一个活动实例(之前关闭的第一个活动实例)的引用.您可以使用"this"代替mContext吗?

Are you sure mContext is the correct activity? I suspect it's not the current activity but the reference to another activity instance, the first one that was closed before. Can you use "this" instead of mContext?

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