Reduce number of binder calls by saving nav bar state (b7353e25) · Commits · e / os / android_frameworks_base

core/java/android/view/ViewConfiguration.java

+18 −9

Original line number	Diff line number	Diff line
		@@ -221,6 +221,9 @@ public class ViewConfiguration {
		private final int mOverflingDistance;
		private final boolean mFadingMarqueeEnabled;

		private boolean sHasPermanentMenuKey;
		private boolean sHasPermanentMenuKeySet;

		private Context mContext;

		static final SparseArray<ViewConfiguration> sConfigurations =
		@@ -290,6 +293,16 @@ public class ViewConfiguration {
		mOverscrollDistance = (int) (sizeAndDensity * OVERSCROLL_DISTANCE + 0.5f);
		mOverflingDistance = (int) (sizeAndDensity * OVERFLING_DISTANCE + 0.5f);

		if (!sHasPermanentMenuKeySet) {
		IWindowManager wm = WindowManagerGlobal.getWindowManagerService();
		try {
		sHasPermanentMenuKey = !wm.hasSystemNavBar() && !wm.hasNavigationBar();
		sHasPermanentMenuKeySet = true;
		} catch (RemoteException ex) {
		sHasPermanentMenuKey = false;
		}
		}

		mFadingMarqueeEnabled = res.getBoolean(
		com.android.internal.R.bool.config_ui_enableFadingMarquee);
		mTouchSlop = res.getDimensionPixelSize(
		@@ -670,15 +683,10 @@ public class ViewConfiguration {
		* @return true if a permanent menu key is present, false otherwise.
		*/
		public boolean hasPermanentMenuKey() {
		IWindowManager wm = WindowManagerGlobal.getWindowManagerService();
		// Report no menu key if device has soft buttons
		try {
		if (wm.hasSystemNavBar() \|\| wm.hasNavigationBar()) {
		// Report no menu key if only soft buttons are available
		if (!sHasPermanentMenuKey) {
		return false;
		}
		} catch (RemoteException ex) {
		// do nothing, continue trying to guess
		}

		// Report no menu key if overflow button is forced to enabled
		ContentResolver res = mContext.getContentResolver();
		@@ -689,10 +697,11 @@ public class ViewConfiguration {
		}

		// Report menu key presence based on hardware key rebinding
		IWindowManager wm = WindowManagerGlobal.getWindowManagerService();
		try {
		return wm.hasMenuKeyEnabled();
		} catch (RemoteException ex) {
		return true;
		return sHasPermanentMenuKey;
		}
		}