Third party applications can not be granted CHANGE_COMPONENT_ENABLED_STATE, since that would allow them to break or otherwise mess with other applications.
On Wed, Jun 17, 2009 at 3:29 PM, erictcrook <[email protected]> wrote: > Ok, so, I am unable to use setComponentEnable. > > I apologize for the long post, I am trying to include all the helpful info > here. > > ComponentName componentName = > *new* ComponentName("com.ericcrook.disabletest", > "com.ericcrook.disabletest.DisableActivity.class"); > > pm.setComponentEnabledSetting(componentName, PackageManager. > *COMPONENT_ENABLED_STATE_DISABLED*, PackageManager.*DONT_KILL_APP*); > > If the ComponentName points to this class, it runs without error, however > the icon is still displayed in the Applications Drawer. > > If ComponentName points to another class in another package, it throws this > > 06-17 16:13:18.075: ERROR/AndroidRuntime(2026): Caused by: > java.lang.SecurityException: Permission Denial: attempt to change component > state from pid=2026, uid=10004, package uid=10032 > 06-17 16:13:18.075: ERROR/AndroidRuntime(2026): at > android.os.Parcel.readException(Parcel.java:1234) > 06-17 16:13:18.075: ERROR/AndroidRuntime(2026): at > android.os.Parcel.readException(Parcel.java:1222) > 06-17 16:13:18.075: ERROR/AndroidRuntime(2026): at > android.content.pm.IPackageManager$Stub$Proxy.setComponentEnabledSetting(IPackageManager.java:1823) > 06-17 16:13:18.075: ERROR/AndroidRuntime(2026): at > android.app.ApplicationContext$ApplicationPackageManager.setComponentEnabledSetting(ApplicationContext.java:2421) > > > Looking at the source found at: > > http://android.git.kernel.org/?p=platform/frameworks/base.git;a=blob;f=services/java/com/android/server/PackageManagerService.java;h=1f3ec2bd1f7e93655b10270b8691726de8ead421;hb=cupcake > on line 4461 > > this line appears: > > final int permission = > mContext.checkCallingPermission(android.Manifest.permission.CHANGE_COMPONENT_ENABLED_STATE); > > This is later checked at line 4475: > if (!allowedByPermission && (uid != pkgSetting.userId)) { > throw new SecurityException( > > "Permission Denial: attempt to change component state > from pid=" > + Binder.getCallingPid() > > + ", uid=" + uid + ", package uid=" + > pkgSetting.userId); > } > > The weird thing about all this is, when I set > > <uses-permission android:name=* > "android.permission.CHANGE_COMPONENT_ENABLED_STATE"* /> > > as a child of Manifest, when I install the app, it says, "No permissions > required" > If I request other permissions, they show up appropriately during install. > I don't fully understand the uid check here, but I am looking into it. > Thanks, > Eric Crook > > n Wed, Jun 17, 2009 at 10:08 AM, Romain Guy <[email protected]> wrote: > >> >> Launcher is the name of the application also called Home. So Home == >> Launcher and Launcher == Home. >> >> UNINSTALL_SHORTCUT can *only* be used to uninstall a shortcut from the >> workspace (or desktop). Icons in the applications drawer can only be >> uninstalled by either disabling the activities or uninstalling >> packages via the PackageManager. >> >> > /*I explicitly send my intent to the launcher app. I only knew to do >> this >> > by looking >> > at the source code I found here: >> > >> http://android.git.kernel.org/?p=platform/packages/apps/Launcher.git;a=blob;f=src/com/android/launcher/UninstallShortcutReceiver.java;h=e490f9c0f59e609ba70d82a8093c950285865267;hb=cupcake >> > */ >> > intent.setComponent( >> > >> > new ComponentName("com.android.launcher", >> > "com.android.launcher.UninstallShortcutReceiver")); >> >> There's absolutely no need to do this. All you need to do is set the >> action to com.android.launcher.permission.UNINSTALL_SHORTCUT. >> >> -- >> Romain Guy >> Android framework engineer >> [email protected] >> >> Note: please don't send private questions to me, as I don't have time >> to provide private support. All such questions should be posted on >> public forums, where I and others can see and answer them >> --~--~---------~--~----~------------~-------~--~----~ >> You received this message because you are subscribed to the Google >> Groups "Android Developers" 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-developers?hl=en >> -~----------~----~----~----~------~----~------~--~--- >> >> -- Dianne Hackborn Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- You received this message because you are subscribed to the Google Groups "Android Developers" 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-developers?hl=en
