Adding a couple memory optimizations to Launcher
-> Always dispose of widget page views when leaving the activity.
These pages hold onto many bitmaps.
-> Clear database cache when leaving the activity.
Bug: 17967108
Change-Id: I10ebaaed14e7cd86f09a9afcabd73043705f21b8
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index bb7265e..7fd8193 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -50,6 +50,7 @@
import android.content.res.Configuration;
import android.content.res.Resources;
import android.database.ContentObserver;
+import android.database.sqlite.SQLiteDatabase;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Color;
@@ -3568,6 +3569,9 @@
if (mSearchDropTargetBar != null) {
mSearchDropTargetBar.hideSearchBar(false);
}
+
+ // This can hold unnecessary references to views.
+ mStateAnimation = null;
}
});
@@ -3853,6 +3857,9 @@
content.setCurrentPage(content.getNextPage());
mAppsCustomizeContent.updateCurrentPageScroll();
+
+ // This can hold unnecessary references to views.
+ mStateAnimation = null;
}
});
@@ -3896,8 +3903,16 @@
@Override
public void onTrimMemory(int level) {
super.onTrimMemory(level);
- if (level >= ComponentCallbacks2.TRIM_MEMORY_MODERATE) {
- mAppsCustomizeTabHost.onTrimMemory();
+ if (level >= ComponentCallbacks2.TRIM_MEMORY_UI_HIDDEN) {
+ // The widget preview db can result in holding onto over
+ // 3MB of memory for caching which isn't necessary.
+ SQLiteDatabase.releaseMemory();
+
+ // We reset the apps customize tray in order to
+ // to free all the memory associated with widget previews
+ if (mAppsCustomizeTabHost != null) {
+ mAppsCustomizeTabHost.reset();
+ }
}
}