Android的onActivityResult叫早 [英] Android onActivityResult called early

问题描述

我有2个活动，每个单独的应用程序。活动1有一个按钮，用户可以点击并使用在其的onClick（）方法的意图调用第二个活动：

I have 2 Activities, each in seperate applications. Activity1 has a button the user can click and it calls the second activity using an intent in its onClick() method:

Intent myIntent = getPackageManager().getLaunchIntentForPackage(com.myProject.Activity2);
startActivityForResult(myIntent, 600);

这正常启动活性2，从活动1，但 onActivityResult 被称为活性1前的onCreate 被称为活性2，而不是在 onBack pressed（）在这里我设置了回报意图。

This correctly launches Activity2 from Activity1, but onActivityResult gets called in Activity1 before onCreate gets called in Activity2, instead of in onBackPressed() where I set up the return intent.

下面是的onCreate 法活性2：

@Override
public void onCreate(Bundle savedInstanceState){
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
}

下面是 onBack pressed 方法的活性2当前版本：

Here is the current version of onBackPressed method for Activity2:

@Override
public void onBackPressed() {
    Intent intent = new Intent();
    intent.putExtra("Stuff", someStuff);

    if(getParent()==null){
        setResult(Activity.RESULT_OK, intent);
    }else{
        getParent().setResult(Activity.RESULT_OK, intent);
    }
    finish();
    super.onBackPressed();
}

我的Andr​​oidManifest.xml中有以下意图过滤器的活性2：

My AndroidManifest.xml has the following intent filter for Activity2:

<intent-filter>
    <action android:name="android.intent.action.MAIN"/>
    <category android:name="android.intent.category.LAUNCHER"/>
</intent-filter>

我验证了我的 launchMode 是标准（而不是 singleTask 等）的建议这里和我的要求，code不是负作为警告<一个href="http://stackoverflow.com/questions/5289726/onactivityresult-not-being-called-when-listactivity-finishes">here.我也试过机器人：launchMode =singleTop，但是这是一个不走也

I verified that my launchMode is standard (and not singleTask, etc) as advised here and my request code is not negative as warned here. I also tried android:launchMode="singleTop", but that was a no-go also.

我也试过不叫完成（）在 onBack pressed（）的活性2所提到< A HREF =htt​​p://stackoverflow.com/questions/6742438/onactivityresult-not-called-in-android>此处（也只有 super.onBack pressed（ ）的建议<一href="http://stackoverflow.com/questions/6322874/onactivityresult-has-intent-data-as-null-after-an-activity-has-finished">here)并再次呼吁其作为建议<一href="http://groups.google.com/group/android-developers/browse_thread/thread/b3b2ad819ee40eff#">here.

I also tried not calling finish() in onBackPressed() for Activity2 as mentioned here (also with just super.onBackPressed() as suggested here) and again calling it as suggested here.

此外我试着注释掉行 intent.putExtra（东西，someStuff）; ，因为它似乎导致了的this人。

Additionally I tried commenting out the line intent.putExtra("Stuff", someStuff); as it seemed to cause trouble for this person.

任何想法，我可能是做错了？

Any ideas as to what I might be doing wrong?

推荐答案

因此​​，这里是去照料它的最终解决方案：

So here is the final solution that took care of it:

我改变了意图活性1以下内容：

I changed the intent for Activity1 to the following:

Intent myIntent = new Intent();
myIntent.setClassName("com.myProject", "com.myProject.Activity2");
startActivityForResult(myIntent, 600);

由于某种原因，Android的要求对除由第一个参数给出的包名，第二个参数的完全合格的名称。现在它的作品！ ：）

For some reason Android requires the fully qualified name for the second parameter in addition to the package name given by the first parameter. Now it works! :)

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