Support predictive back from all apps to home
bug: b/238475505
Test: manual
Change-Id: Ibf4f7f41a26b044a538e2cd566d2297ed88f1b99
diff --git a/src/com/android/launcher3/LauncherState.java b/src/com/android/launcher3/LauncherState.java
index 5dddc6f..b9e4c17 100644
--- a/src/com/android/launcher3/LauncherState.java
+++ b/src/com/android/launcher3/LauncherState.java
@@ -34,6 +34,8 @@
import android.graphics.Color;
import android.view.animation.Interpolator;
+import androidx.annotation.FloatRange;
+
import com.android.launcher3.statemanager.BaseState;
import com.android.launcher3.statemanager.StateManager;
import com.android.launcher3.states.HintState;
@@ -342,6 +344,27 @@
}
}
+ /**
+ * Find {@link StateManager} and target {@link LauncherState} to handle back progress in
+ * predictive back gesture.
+ */
+ public void onBackProgressed(
+ Launcher launcher, @FloatRange(from = 0.0, to = 1.0) float backProgress) {
+ StateManager<LauncherState> lsm = launcher.getStateManager();
+ LauncherState toState = lsm.getLastState();
+ lsm.onBackProgressed(toState, backProgress);
+ }
+
+ /**
+ * Find {@link StateManager} and target {@link LauncherState} to handle backProgress in
+ * predictive back gesture.
+ */
+ public void onBackCancelled(Launcher launcher) {
+ StateManager<LauncherState> lsm = launcher.getStateManager();
+ LauncherState toState = lsm.getLastState();
+ lsm.onBackCancelled(toState);
+ }
+
public static abstract class PageAlphaProvider {
public final Interpolator interpolator;