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Support loading keyboard layout overlays from resources.

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Added the concept of a keyboard layout overlay, which is
a key character map file that has "type OVERLAY".

Added support for loading keyboard layout overlays from
resources dynamically.  The layouts are reloaded whenever they
are changed in the Settings application or an application
is installed.  This is somewhat more aggressive than necessary
so we might want to optimize it later.

Before system-ready, the input system uses just the generic
keyboard layouts that are included on the device system image.
After system-ready, it considers the user's selected keyboard
layout overlay and attempts to load it as necessary.  We need to
wait until system-ready before doing this because we need to
be in a state where it is safe to start applications or access
their resources.

Bug: 6110399
Change-Id: Iae0886d3356649b0d2440aa00910a888cedd8323
This commit is contained in:
Jeff Brown
2012-04-17 16:52:41 -07:00
parent a3bc565882
commit 6ec6f79e1a
18 changed files with 429 additions and 121 deletions
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2
services/java/com/android/server/InputMethodManagerService.java
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@ -118,7 +118,7 @@ import java.util.TreeMap;
public class InputMethodManagerService extends IInputMethodManager.Stub
implements ServiceConnection, Handler.Callback {
static final boolean DEBUG = false;
static final String TAG = "InputManagerService";
static final String TAG = "InputMethodManagerService";
static final int MSG_SHOW_IM_PICKER = 1;
static final int MSG_SHOW_IM_SUBTYPE_PICKER = 2;