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On May 24, 2:03 am, "sharon.hou" <[email protected]> wrote: > Hi, > > My application includes ActivityA / ActivityB / Activity C. Activity > C is singleTask mode, not exported, no MAIN/LAUNCHER set, Activity C > will be started by ActivityB. > > Question: > Why un-exported ActivityC can be launched by Launcher > com.android.launcher which has a common UID=app_25 ? > > My understanding it should be denied in startActivityLocked() when > checking the permission since ActivityC is not exported and the > aInfo.application.uid will be required to start ActivityC. What's > wrong in my thought? > > 1960 final int perm = > mService.checkComponentPermission(aInfo.permission, callingPid, > 1961 callingUid, aInfo.exported ? -1 : > aInfo.applicationInfo.uid); > > Test steps: > S1. Launch my app in AppTray. > S2. Press HomeKey to return to home screen. > S3. Hold HomeKey to display all Recent launched app, my app can be > launched successfully ( intent > cmp=com.example.android.recents/.ActivityB) > S4. Press Back key to return to home screen. > S5. Hold HomeKey to display all Recent launched app, my app can be > launched successfully (intent > cmp=com.example.android.recents/.ActivityC) > > Code: > The AndroidManifest.xml is as below: > <?xml version="1.0" encoding="utf-8"?> > <manifest xmlns:android="http://schemas.android.com/apk/res/android"; > package="com.example.android.recents" > android:versionCode="1" > android:versionName="1.0"> > <application android:icon="@drawable/icon" android:label="@string/ > app_name"> > <activity android:name=".ActivityA" /> > > <activity android:name="ActivityC" > android:launchMode="singleTask" / > > > > <activity-alias android:name=".ActivityB" > android:targetActivity=".ActivityA"> > <intent-filter> > <action > android:name="android.intent.action.MAIN" /> > <category > android:name="android.intent.category.LAUNCHER" /> > </intent-filter> > </activity-alias> > </application> > <uses-sdk android:minSdkVersion="6" /> > </manifest> > > ActivityA.java is: > public class ActivityA extends Activity { > > @Override > public void onCreate(Bundle savedInstanceState) { > super.onCreate(savedInstanceState); > startActivity(new Intent(this, ActivityC.class)); > finish(); > } > > } > > Log: > app_25 128 32 146840 19264 ffffffff afd0eb08 S > com.android.launcher > > D:\test>adb logcat -v threadtime > 05-24 16:34:27.065 58 191 I ActivityManager: Starting activity: > Intent { act=android.intent.action.MAIN > cat=[android.intent.category.LAUNCHER] flg=0x10200000 > cmp=com.example.android.recents/.ActivityB } > 05-24 16:34:27.234 58 62 I ActivityManager: Start proc > com.example.android.recents for activity > com.example.android.recents/.ActivityB: pid=271 uid=10038 gids={} > 05-24 16:34:28.753 58 191 I ActivityManager: Starting activity: > Intent { cmp=com.example.android.recents/.ActivityC } > 05-24 16:34:29.174 58 88 I ActivityManager: Displayed activity > com.example.android.recents/.ActivityC: 399 ms (total 2025 ms) > 05-24 16:34:48.244 58 91 I ActivityManager: Starting activity: > Intent { act=android.intent.action.MAIN > cat=[android.intent.category.HOME] flg=0x10200000 > cmp=com.android.launcher/com.android.launcher2.Launcher } > 05-24 16:34:54.963 58 91 I ActivityManager: Starting activity: > Intent { act=android.intent.action.MAIN > cat=[android.intent.category.HOME] flg=0x10200000 > cmp=com.android.launcher/com.android.launcher2.Launcher } > 05-24 16:35:08.734 58 90 I ActivityManager: Starting activity: > Intent { act=android.intent.action.MAIN > cat=[android.intent.category.LAUNCHER] flg=0x10100000 > cmp=com.example.android.recents/.ActivityB } > 05-24 16:35:09.055 58 62 I ActivityManager: Starting activity: > Intent { cmp=com.example.android.recents/.ActivityC } > 05-24 16:35:09.064 58 116 W ActivityManager: Duplicate finish > request for HistoryRecord{450a6ed8 > com.example.android.recents/.ActivityB} > 05-24 16:35:32.916 58 90 I ActivityManager: Starting activity: > Intent { flg=0x10100000 > cmp=com.example.android.recents/.ActivityC } <<<<???? why is this > successfull ? > 05-24 16:35:33.774 58 88 I ActivityManager: Displayed activity > com.example.android.recents/.ActivityC: 828 ms (total 24876 ms) -- You received this message because you are subscribed to the Google Groups "Android Discuss" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/android-discuss?hl=en.
