commit 62515beee67307d8859beec521b7baedfa54b2b5
author Jason Monk <jmonk@google.com> Wed May 21 16:06:19 2014 -0400
committer Jason Monk <jmonk@google.com> Fri Jun 20 16:17:38 2014 -0400
tree e08c69d802fb9929a223c626fe33662a47350085
parent 65dfc83cef6dd936deef428f1d318d10ff1d7af5

Add lock-to-app mode

Added a dialog that shows when app has not been authorized by
DevicePolicyManager.isLockTaskAuthorized.  This allows any app
to trigger lock-to-app mode.  This same dialog is used when
startLockTaskOnCurrent is triggered by the recents long-press.

Can exit the mode by long-pressing recents again.

Keyguard is disabled when lock-to-app is active.

This CL also prevents apps from finishing when they are the root
task in a lock task TaskRecord.

Change-Id: Ib54d858e570cccf6bfd986958868e15f49bcef75

core/java/android/app/ActivityManagerNative.java

diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 56462ae..572d389 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -2145,6 +2145,13 @@
             return true;
         }
 
+        case START_LOCK_TASK_BY_CURRENT: {
+            data.enforceInterface(IActivityManager.descriptor);
+            startLockTaskModeOnCurrent();
+            reply.writeNoException();
+            return true;
+        }
+
         case STOP_LOCK_TASK_MODE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             stopLockTaskMode();
@@ -2152,6 +2159,13 @@
             return true;
         }
 
+        case STOP_LOCK_TASK_BY_CURRENT: {
+            data.enforceInterface(IActivityManager.descriptor);
+            stopLockTaskModeOnCurrent();
+            reply.writeNoException();
+            return true;
+        }
+
         case IS_IN_LOCK_TASK_MODE_TRANSACTION: {
             data.enforceInterface(IActivityManager.descriptor);
             final boolean isInLockTaskMode = isInLockTaskMode();
@@ -4947,6 +4961,17 @@
     }
 
     @Override
+    public void startLockTaskModeOnCurrent() throws RemoteException {
+        Parcel data = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        data.writeInterfaceToken(IActivityManager.descriptor);
+        mRemote.transact(START_LOCK_TASK_BY_CURRENT, data, reply, 0);
+        reply.readException();
+        data.recycle();
+        reply.recycle();
+    }
+
+    @Override
     public void stopLockTaskMode() throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
@@ -4958,6 +4983,17 @@
     }
 
     @Override
+    public void stopLockTaskModeOnCurrent() throws RemoteException {
+        Parcel data = Parcel.obtain();
+        Parcel reply = Parcel.obtain();
+        data.writeInterfaceToken(IActivityManager.descriptor);
+        mRemote.transact(STOP_LOCK_TASK_BY_CURRENT, data, reply, 0);
+        reply.readException();
+        data.recycle();
+        reply.recycle();
+    }
+
+    @Override
     public boolean isInLockTaskMode() throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();