diff options
| author | Sean Stout <sstout@google.com> | 2021-01-25 19:36:23 -0800 |
|---|---|---|
| committer | Sean Stout <sstout@google.com> | 2021-01-27 20:42:42 +0000 |
| commit | 35ca6c8129209d2f9e57e8630141ddd3943ede02 (patch) | |
| tree | 2cf46eaa30234fc4825c01eb8c538cdec738ee1c /core/java/android | |
| parent | 1ee021411844abc734ac51dbf88a16a20f0108a2 (diff) | |
Add DisplayGroupListener interface
This interface can be used to listen for addition, removal, or
modification of DisplayGroups.
Bug: 138328918
Test: make
Change-Id: I3a2f39838ab00808816366d2484190b401aabed0
Diffstat (limited to 'core/java/android')
| -rw-r--r-- | core/java/android/hardware/display/DisplayManagerInternal.java | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/core/java/android/hardware/display/DisplayManagerInternal.java b/core/java/android/hardware/display/DisplayManagerInternal.java index 5a03adee4eab..95f1d124b9a1 100644 --- a/core/java/android/hardware/display/DisplayManagerInternal.java +++ b/core/java/android/hardware/display/DisplayManagerInternal.java @@ -465,4 +465,46 @@ public abstract class DisplayManagerInternal { public interface DisplayTransactionListener { void onDisplayTransaction(Transaction t); } + + /** + * Called when there are changes to {@link com.android.server.display.DisplayGroup + * DisplayGroups}. + */ + public interface DisplayGroupListener { + /** + * A new display group with the provided {@code groupId} was added. + * + * <ol> + * <li>The {@code groupId} is applied to all appropriate {@link Display displays}. + * <li>This method is called. + * <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners} + * are informed of any corresponding changes. + * </ol> + */ + void onDisplayGroupAdded(int groupId); + + /** + * The display group with the provided {@code groupId} was removed. + * + * <ol> + * <li>All affected {@link Display displays} have their group IDs updated appropriately. + * <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners} + * are informed of any corresponding changes. + * <li>This method is called. + * </ol> + */ + void onDisplayGroupRemoved(int groupId); + + /** + * The display group with the provided {@code groupId} has changed. + * + * <ol> + * <li>All affected {@link Display displays} have their group IDs updated appropriately. + * <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners} + * are informed of any corresponding changes. + * <li>This method is called. + * </ol> + */ + void onDisplayGroupChanged(int groupId); + } } |