Work on fragments in layouts.

- Change semantics if IDs associated with these fragments, to
  work correctly when placed in a container.  If the container
  has an ID or you have supplied a tag, the fragment's ID is
  optional.

- To do this, there is a new LayoutInflater API that allows code
  creating views to access the parent container that view will
  be in.

- Fix issues with state management around these fragments.  Now
  correctly retains state when switching to a layout that doesn't
  include the fragment.

Also:

- Add new simple list layouts for items that want to show an
  activated state.
- Add new Activity.dump() that can be invoked with adb shell
  dumpsys; the default implementation dumps fragment state.

Change-Id: I192f35e3ea8c53fbd26cf909095f2a994abfc1b6

1 files changed, 26 insertions, 0 deletions

diff --git a/core/java/android/app/ApplicationThreadNative.java b/core/java/android/app/ApplicationThreadNative.java
index dc2145fb4c2c..95689fc3df42 100644
--- a/core/java/android/app/ApplicationThreadNative.java
+++ b/core/java/android/app/ApplicationThreadNative.java
@@ -414,6 +414,21 @@ public abstract class ApplicationThreadNative extends Binder
             dumpHeap(managed, path, fd);
             return true;
         }
+
+        case DUMP_ACTIVITY_TRANSACTION: {
+            data.enforceInterface(IApplicationThread.descriptor);
+            ParcelFileDescriptor fd = data.readFileDescriptor();
+            final IBinder activity = data.readStrongBinder();
+            final String[] args = data.readStringArray();
+            if (fd != null) {
+                dumpActivity(fd.getFileDescriptor(), activity, args);
+                try {
+                    fd.close();
+                } catch (IOException e) {
+                }
+            }
+            return true;
+        }
         }
 
         return super.onTransact(code, data, reply, flags);
@@ -857,5 +872,16 @@ class ApplicationThreadProxy implements IApplicationThread {
                 IBinder.FLAG_ONEWAY);
         data.recycle();
     }
+
+    public void dumpActivity(FileDescriptor fd, IBinder token, String[] args)
+            throws RemoteException {
+        Parcel data = Parcel.obtain();
+        data.writeInterfaceToken(IApplicationThread.descriptor);
+        data.writeFileDescriptor(fd);
+        data.writeStrongBinder(token);
+        data.writeStringArray(args);
+        mRemote.transact(DUMP_ACTIVITY_TRANSACTION, data, null, 0);
+        data.recycle();
+    }
 }