Defines flag to disable touch feedback on display (fc06fc5c) · Commits · e / os / android_frameworks_base

core/java/android/hardware/display/DisplayManager.java

+11 −1

Original line number	Diff line number	Diff line
		@@ -122,7 +122,8 @@ public final class DisplayManager {
		VIRTUAL_DISPLAY_FLAG_SHOULD_SHOW_SYSTEM_DECORATIONS,
		VIRTUAL_DISPLAY_FLAG_TRUSTED,
		VIRTUAL_DISPLAY_FLAG_OWN_DISPLAY_GROUP,
		VIRTUAL_DISPLAY_FLAG_ALWAYS_UNLOCKED
		VIRTUAL_DISPLAY_FLAG_ALWAYS_UNLOCKED,
		VIRTUAL_DISPLAY_FLAG_TOUCH_FEEDBACK_DISABLED
		})
		@Retention(RetentionPolicy.SOURCE)
		public @interface VirtualDisplayFlag {}
		@@ -379,6 +380,15 @@ public final class DisplayManager {
		*/
		public static final int VIRTUAL_DISPLAY_FLAG_ALWAYS_UNLOCKED = 1 << 12;

		/**
		* Virtual display flags: Indicates that the display should not play sound effects or perform
		* haptic feedback when the user touches the screen.
		*
		* @see #createVirtualDisplay
		* @hide
		*/
		public static final int VIRTUAL_DISPLAY_FLAG_TOUCH_FEEDBACK_DISABLED = 1 << 13;

		/** @hide */
		@IntDef(prefix = {"MATCH_CONTENT_FRAMERATE_"}, value = {
		MATCH_CONTENT_FRAMERATE_UNKNOWN,

core/java/android/view/Display.java

+9 −0

Original line number	Diff line number	Diff line
		@@ -308,6 +308,15 @@ public final class Display {
		*/
		public static final int FLAG_ALWAYS_UNLOCKED = 1 << 9;

		/**
		* Flag: Indicates that the display should not play sound effects or perform haptic feedback
		* when the user touches the screen.
		*
		* @hide
		* @see #getFlags()
		*/
		public static final int FLAG_TOUCH_FEEDBACK_DISABLED = 1 << 10;

		/**
		* Display flag: Indicates that the contents of the display should not be scaled
		* to fit the physical screen dimensions. Used for development only to emulate

core/java/android/view/DisplayInfo.java

+3 −0

Original line number	Diff line number	Diff line
		@@ -865,6 +865,9 @@ public final class DisplayInfo implements Parcelable {
		if ((flags & Display.FLAG_ALWAYS_UNLOCKED) != 0) {
		result.append(", FLAG_ALWAYS_UNLOCKED");
		}
		if ((flags & Display.FLAG_TOUCH_FEEDBACK_DISABLED) != 0) {
		result.append(", FLAG_TOUCH_FEEDBACK_DISABLED");
		}
		return result.toString();
		}
		}

core/java/android/view/ViewRootImpl.java

+8 −0

Original line number	Diff line number	Diff line
		@@ -8200,6 +8200,10 @@ public final class ViewRootImpl implements ViewParent,
		*/
		@Override
		public void playSoundEffect(@SoundEffectConstants.SoundEffect int effectId) {
		if ((mDisplay.getFlags() & Display.FLAG_TOUCH_FEEDBACK_DISABLED) != 0) {
		return;
		}

		checkThread();

		try {
		@@ -8248,6 +8252,10 @@ public final class ViewRootImpl implements ViewParent,
		*/
		@Override
		public boolean performHapticFeedback(int effectId, boolean always) {
		if ((mDisplay.getFlags() & Display.FLAG_TOUCH_FEEDBACK_DISABLED) != 0) {
		return false;
		}

		try {
		return mWindowSession.performHapticFeedback(effectId, always);
		} catch (RemoteException e) {

core/tests/coretests/src/android/view/ViewRootImplTest.java

+52 −0

Original line number	Diff line number	Diff line
		@@ -35,16 +35,19 @@ import static com.google.common.truth.Truth.assertThat;
		import static com.google.common.truth.Truth.assertWithMessage;

		import static org.junit.Assert.assertEquals;
		import static org.junit.Assert.assertThrows;
		import static org.junit.Assert.assertTrue;
		import static org.junit.Assert.fail;

		import android.app.Instrumentation;
		import android.content.Context;
		import android.hardware.display.DisplayManagerGlobal;
		import android.os.Binder;
		import android.platform.test.annotations.Presubmit;
		import android.view.WindowInsets.Side;
		import android.view.WindowInsets.Type;

		import androidx.test.annotation.UiThreadTest;
		import androidx.test.ext.junit.runners.AndroidJUnit4;
		import androidx.test.filters.SmallTest;
		import androidx.test.platform.app.InstrumentationRegistry;
		@@ -334,6 +337,55 @@ public class ViewRootImplTest {
		}, false /shouldReceiveKey/);
		}

		@UiThreadTest
		@Test
		public void playSoundEffect_wrongEffectId_throwException() {
		ViewRootImpl viewRootImpl = new ViewRootImpl(sContext,
		sContext.getDisplayNoVerify());
		View view = new View(sContext);
		WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams(
		TYPE_APPLICATION_OVERLAY);
		layoutParams.token = new Binder();
		view.setLayoutParams(layoutParams);
		viewRootImpl.setView(view, layoutParams, /* panelParentView= */ null);

		assertThrows(IllegalArgumentException.class,
		() -> viewRootImpl.playSoundEffect(/* effectId= */ -1));
		}

		@UiThreadTest
		@Test
		public void playSoundEffect_wrongEffectId_touchFeedbackDisabled_doNothing() {
		DisplayInfo displayInfo = new DisplayInfo();
		displayInfo.flags = Display.FLAG_TOUCH_FEEDBACK_DISABLED;
		Display display = new Display(DisplayManagerGlobal.getInstance(), /* displayId= */
		0, displayInfo, new DisplayAdjustments());
		ViewRootImpl viewRootImpl = new ViewRootImpl(sContext, display);
		View view = new View(sContext);
		WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams(
		TYPE_APPLICATION_OVERLAY);
		layoutParams.token = new Binder();
		view.setLayoutParams(layoutParams);
		viewRootImpl.setView(view, layoutParams, /* panelParentView= */ null);

		viewRootImpl.playSoundEffect(/* effectId= */ -1);
		}

		@UiThreadTest
		@Test
		public void performHapticFeedback_touchFeedbackDisabled_doNothing() {
		DisplayInfo displayInfo = new DisplayInfo();
		displayInfo.flags = Display.FLAG_TOUCH_FEEDBACK_DISABLED;
		Display display = new Display(DisplayManagerGlobal.getInstance(), /* displayId= */
		0, displayInfo, new DisplayAdjustments());
		ViewRootImpl viewRootImpl = new ViewRootImpl(sContext, display);

		boolean result = viewRootImpl.performHapticFeedback(
		HapticFeedbackConstants.CONTEXT_CLICK, true);

		assertThat(result).isFalse();
		}

		class KeyView extends View {
		KeyView(Context context) {
		super(context);