Register to receive onTrimMemory callbacks (34a676bd) · Commits · e / os / android_frameworks_base

core/java/android/webkit/WebView.java

+35 −0

Original line number	Diff line number	Diff line
		@@ -383,6 +383,39 @@ public class WebView extends AbsoluteLayout
		}
		}

		private static class OnTrimMemoryListener implements ComponentCallbacks2 {
		private static OnTrimMemoryListener sInstance = null;

		static void init(Context c) {
		if (sInstance == null) {
		sInstance = new OnTrimMemoryListener(c.getApplicationContext());
		}
		}

		private OnTrimMemoryListener(Context c) {
		c.registerComponentCallbacks(this);
		}

		@Override
		public void onConfigurationChanged(Configuration newConfig) {
		// Ignore
		}

		@Override
		public void onLowMemory() {
		// Ignore
		}

		@Override
		public void onTrimMemory(int level) {
		if (DebugFlags.WEB_VIEW) {
		Log.d("WebView", "onTrimMemory: " + level);
		}
		WebView.nativeOnTrimMemory(level);
		}

		}

		// A final CallbackProxy shared by WebViewCore and BrowserFrame.
		private final CallbackProxy mCallbackProxy;

		@@ -1195,6 +1228,8 @@ public class WebView extends AbsoluteLayout
		}

		private void init() {
		OnTrimMemoryListener.init(getContext());

		setWillNotDraw(false);
		setFocusable(true);
		setFocusableInTouchMode(true);