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-rw-r--r--src/com/android/launcher3/LauncherCallbacks.java6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/com/android/launcher3/LauncherCallbacks.java b/src/com/android/launcher3/LauncherCallbacks.java
index edac516e1..dfe75ec34 100644
--- a/src/com/android/launcher3/LauncherCallbacks.java
+++ b/src/com/android/launcher3/LauncherCallbacks.java
@@ -21,7 +21,6 @@ import android.os.Bundle;
import java.io.FileDescriptor;
import java.io.PrintWriter;
-import java.util.ArrayList;
/**
* LauncherCallbacks is an interface used to extend the Launcher activity. It includes many hooks
@@ -53,6 +52,11 @@ public interface LauncherCallbacks {
boolean handleBackPressed();
void onTrimMemory(int level);
+ /**
+ * Called when the launcher state changed
+ */
+ default void onStateChanged() { }
+
/*
* Extension points for providing custom behavior on certain user interactions.
*/