從安裝崩潰尋找ResolverActivity？

Question

我的一位同事試圖從內部網站加載我的APK，然後從安裝程序中打開它。應用程序在啓動時會崩潰，並使用下面的堆棧並引用一個我沒有的活動。我相信這是因爲我（臨時）從清單中爲我的應用程序提供了兩個入口點，因此需要解析器（選擇器）。

這是真的嗎？

02-04 13:57:15.880 E/AndroidRuntime(4183): android.content.ActivityNotFoundException: Unable to find explicit activity class {com.mycompany.android.myapp/com.android.internal.app.ResolverActivity}; have you declared this activity in your AndroidManifest.xml? 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1404) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.Instrumentation.execStartActivity(Instrumentation.java:1378) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.Activity.startActivityForResult(Activity.java:2758) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.Activity.startActivity(Activity.java:2864) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.packageinstaller.InstallAppProgress.onClick(InstallAppProgress.java:191) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.View.performClick(View.java:2420) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.View.onTouchEvent(View.java:4235) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.widget.TextView.onTouchEvent(TextView.java:6642) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.View.dispatchTouchEvent(View.java:3765) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:884) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:1713) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1131) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.Activity.dispatchTouchEvent(Activity.java:2070) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:1697) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.view.ViewRoot.handleMessage(ViewRoot.java:1716) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.os.Handler.dispatchMessage(Handler.java:99) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.os.Looper.loop(Looper.java:123) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at android.app.ActivityThread.main(ActivityThread.java:4363) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at java.lang.reflect.Method.invokeNative(Native Method) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at java.lang.reflect.Method.invoke(Method.java:521) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620) 
02-04 13:57:15.880 E/AndroidRuntime(4183):  at dalvik.system.NativeStart.main(Native Method) 

這是一張清單。注意歡迎和設置活動。兩者都有針對Launcher with Main的意圖過濾器，這就是開始活動之前需要「解決」的問題。顯然，其他安裝程序只抓一個（隨機，第一等）？

<activity android:name=".ui.WelcomeActivity" 
       android:label="@string/title_welcome"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 
      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
    </activity>    

    <activity android:name=".ui.AboutActivity" 
       android:label="@string/title_edit_profile"> 
     <intent-filter> 
      <action android:name="android.intent.action.VIEW" /> 
      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 
    </activity> 

    <activity android:name=".ui.SettingsActivity" 
       android:label="@string/title_settings" 
       android:windowSoftInputMode="stateAlwaysHidden|adjustPan"> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 
      <category android:name="android.intent.category.LAUNCHER" /> 
     </intent-filter> 
     <intent-filter> 
      <action android:name="android.intent.action.MAIN" /> 
      <action android:name="android.provider.Settings.ACTION_SYNC_SETTINGS"/> 
      <category android:name="android.intent.category.DEFAULT" /> 
     </intent-filter> 
    </activity> 

Answer 1

在intent-filter上有多個匹配的Activity可能需要一個Resolver才能在匹配選項中進行選擇。移除MAIN/LAUNCHER意圖過濾器之一或添加一個帶選擇器對話框的解析器以啓動。