Add OnControllableInsetsChangedListener
It's useful for apps to know which inset types they can currently
control, as otherwise they have to poll by calling
controlInsetsAnimation repeatedly.
This can be used when apps want to apply a custom animation
immediately during startup as soon as possible.
Fixes: 150780468
Test: InsetsControllerTest
Test: CTS will be added soon
Test: WindowInsetsActivity
Change-Id: Ic0388c11d759843d3ac9edd8ef23904c9ce05c46
diff --git a/core/java/android/view/PendingInsetsController.java b/core/java/android/view/PendingInsetsController.java
index c0ed935..7f36418 100644
--- a/core/java/android/view/PendingInsetsController.java
+++ b/core/java/android/view/PendingInsetsController.java
@@ -38,6 +38,8 @@
private @Behavior int mBehavior = KEEP_BEHAVIOR;
private final InsetsState mDummyState = new InsetsState();
private InsetsController mReplayedInsetsController;
+ private ArrayList<OnControllableInsetsChangedListener> mControllableInsetsChangedListeners
+ = new ArrayList<>();
@Override
public void show(int types) {
@@ -112,6 +114,27 @@
return mDummyState;
}
+ @Override
+ public void addOnControllableInsetsChangedListener(
+ OnControllableInsetsChangedListener listener) {
+ if (mReplayedInsetsController != null) {
+ mReplayedInsetsController.addOnControllableInsetsChangedListener(listener);
+ } else {
+ mControllableInsetsChangedListeners.add(listener);
+ listener.onControllableInsetsChanged(this, 0);
+ }
+ }
+
+ @Override
+ public void removeOnControllableInsetsChangedListener(
+ OnControllableInsetsChangedListener listener) {
+ if (mReplayedInsetsController != null) {
+ mReplayedInsetsController.removeOnControllableInsetsChangedListener(listener);
+ } else {
+ mControllableInsetsChangedListeners.remove(listener);
+ }
+ }
+
/**
* Replays the commands on {@code controller} and attaches it to this instance such that any
* calls will be forwarded to the real instance in the future.
@@ -128,9 +151,15 @@
for (int i = 0; i < size; i++) {
mRequests.get(i).replay(controller);
}
+ size = mControllableInsetsChangedListeners.size();
+ for (int i = 0; i < size; i++) {
+ controller.addOnControllableInsetsChangedListener(
+ mControllableInsetsChangedListeners.get(i));
+ }
// Reset all state so it doesn't get applied twice just in case
mRequests.clear();
+ mControllableInsetsChangedListeners.clear();
mBehavior = KEEP_BEHAVIOR;
mAppearance = 0;
mAppearanceMask = 0;