activity能被其他的AP启动的条件 or android permission denied : starting Intent

今天在从一个AP中跳到一个另外一个AP的时候遇到如下的异常：

 E/AndroidRuntime(13403): java.lang.SecurityException: Permission Denial: startin g Intent { flags=0x10000000 comp={com.android.setting/com.android.setting.alarm. Alarm} } from ProcessRecord{43768a40 13403:com.android.modleactivity/10021} (pid =13403, uid=10021) requires null E/AndroidRuntime(13403): at android.os.Parcel.readException(Parcel.java:1 234) E/AndroidRuntime(13403): at android.os.Parcel.readException(Parcel.java:1 222) E/AndroidRuntime(13403): at android.app.ActivityManagerProxy.startActivit y(ActivityManagerNative.java:1046) E/AndroidRuntime(13403): at android.app.Instrumentation.execStartActivity (Instrumentation.java:1449) E/AndroidRuntime(13403): at android.app.Activity.startActivityForResult(A ctivity.java:2656) E/AndroidRuntime(13403): at com.android.modleactivity.ModleActivity$3.onC lick(ModleActivity.java:271) E/AndroidRuntime(13403): at android.view.View.performClick(View.java:2179 ) E/AndroidRuntime(13403): at android.view.View.onTouchEvent(View.java:3828 ) E/AndroidRuntime(13403): at android.view.View.dispatchTouchEvent(View.jav a:3368) E/AndroidRuntime(13403): at android.view.ViewGroup.dispatchTouchEvent(Vie wGroup.java:863) E/AndroidRuntime(13403): at android.view.ViewGroup.dispatchTouchEvent(Vie wGroup.java:863) E/AndroidRuntime(13403): at android.view.ViewGroup.dispatchTouchEvent(Vie wGroup.java:863) E/AndroidRuntime(13403): at android.view.ViewGroup.dispatchTouchEvent(Vie wGroup.java:863) E/AndroidRuntime(13403): at android.view.ViewGroup.dispatchTouchEvent(Vie wGroup.java:863) E/AndroidRuntime(13403): at com.android.internal.policy.impl.PhoneWindow$ DecorView.superDispatchTouchEvent(PhoneWindow.java:1707) E/AndroidRuntime(13403): at com.android.internal.policy.impl.PhoneWindow. superDispatchTouchEvent(PhoneWindow.java:1197) E/AndroidRuntime(13403): at android.app.Activity.dispatchTouchEvent(Activ ity.java:1993) E/AndroidRuntime(13403): at com.android.internal.policy.impl.PhoneWindow$ DecorView.dispatchTouchEvent(PhoneWindow.java:1691) E/AndroidRuntime(13403): at android.view.ViewRoot.handleMessage(ViewRoot. java:1525) E/AndroidRuntime(13403): at android.os.Handler.dispatchMessage(Handler.ja va:99) E/AndroidRuntime(13403): at android.os.Looper.loop(Looper.java:123) E/AndroidRuntime(13403): at android.app.ActivityThread.main(ActivityThrea d.java:3948) E/AndroidRuntime(13403): at java.lang.reflect.Method.invokeNative(Native Method) E/AndroidRuntime(13403): at java.lang.reflect.Method.invoke(Method.java:5 21) E/AndroidRuntime(13403): at com.android.internal.os.ZygoteInit$MethodAndA rgsCaller.run(ZygoteInit.java:782) E/AndroidRuntime(13403): at com.android.internal.os.ZygoteInit.main(Zygot eInit.java:540) E/AndroidRuntime(13403): at dalvik.system.NativeStart.main(Native Method)

 

google一下才发现原因。因为我启动的另外 一个AP的activity不是默认启动的activity，所以导致这样的异常。要在需要启动的activity的

AndroidManifest.xml中添加如下代码：

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

 

在此做个记录。