onDestroy 之后不再调用 onActivityResult

发布于 2024-09-08 09:16:48 字数 3299 浏览 0 评论 0原文

onActivityResult 让我很头疼。我的小游戏有一个标题/菜单屏幕。单击“新游戏”后，将启动一个 Activity，为我的游戏世界创建一个 SurfaceView。

在玩游戏时，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。下面是一个例子：

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

mMinerClass是在游戏Activity的onCreate中定义的：

  mMap .mMinerClass = Miner.this;

mMap是SurfaceView。我正在传递一个包含玩家状态的包。在 onActivityResult 中，我获取商店活动返回的包并更新播放器状态。

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

mSavedPlayer 稍后用于设置新的播放器状态。

以上所有内容通常都有效

我可以进入商店，购买东西，离开，并且播放器已正确更新。

当我按下主页按钮（或有时返回按钮）并且 onDestroy 被调用时，问题就会出现。我的 onDestroy 方法除了调用 super.onDestroy(); 之外什么也不做

调用 onDestroy() 后，不再调用 onActivityResult。

所以：

1）我玩游戏，一切都很好。

2) 我按 home 键，ondestroy 被调用

3) 通过启动器图标重新启动我的游戏

4) 恢复游戏。我仍然可以进出商店，但 onActivityResult 不再被调用。

这是一些 logcat 输出。每次输入相关方法时我都会记录。

  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

我是通过手机发布此内容的，所以请原谅任何愚蠢的拼写错误。

我很感谢你们对此提供的任何见解。谢谢！

原文

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.

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 is defined in the game Activity onCreate:

  mMap .mMinerClass = Miner.this;

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 is later used to set the new player state.

All the above works generally

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

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();

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

So:

1) I play the game, everthing works great.

2) I press home and ondestroy is called

3) relaunch my game via launcher icon

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

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

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

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

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甜中书 2024-09-15 09:16:48

您应该额外注意这一行：

((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的引用，即之前关闭的第一个活动实例。可以用“this”代替mContext吗？

You should put additional attention to this line:

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

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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