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Add haptic feedback to Launcher recent apps scrolling

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Add light LOW_TICK effects when the scrolling on RecentsView
snaps to a page, and a stronger TICK effect when the edges
absorb the scroll (by scrolling fast towards one of the edges).

Fix: 182382085
Test: manual
Change-Id: Ifb917ae499f73607707773f9870eb39cd6fe16ef
This commit is contained in:
Lais Andrade
2021-05-21 13:50:46 +01:00
parent 9f194ee290
commit b1ef5e5c55
3 changed files with 60 additions and 0 deletions
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29
src/com/android/launcher3/util/VibratorWrapper.java
View File

@@ -21,15 +21,19 @@ import static android.provider.Settings.System.HAPTIC_FEEDBACK_ENABLED;
import static com.android.launcher3.util.Executors.MAIN_EXECUTOR;
import static com.android.launcher3.util.Executors.UI_HELPER_EXECUTOR;
import android.annotation.SuppressLint;
import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.media.AudioAttributes;
import android.os.Build;
import android.os.VibrationEffect;
import android.os.Vibrator;
import android.provider.Settings;
import com.android.launcher3.Utilities;
/**
* Wrapper around {@link Vibrator} to easily perform haptic feedback where necessary.
*/
@@ -39,6 +43,11 @@ public class VibratorWrapper {
public static final MainThreadInitializedObject<VibratorWrapper> INSTANCE =
new MainThreadInitializedObject<>(VibratorWrapper::new);
public static final AudioAttributes VIBRATION_ATTRS = new AudioAttributes.Builder()
.setUsage(AudioAttributes.USAGE_ASSISTANCE_SONIFICATION)
.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
.build();
public static final VibrationEffect EFFECT_CLICK =
createPredefined(VibrationEffect.EFFECT_CLICK);
@@ -81,4 +90,24 @@ public class VibratorWrapper {
UI_HELPER_EXECUTOR.execute(() -> mVibrator.vibrate(vibrationEffect));
}
}
/**
* Vibrates with a single primitive, if supported, or use a fallback effect instead. This only
* vibrates if haptic feedback is available and enabled.
*/
@SuppressLint("NewApi")
public void vibrate(int primitiveId, float primitiveScale, VibrationEffect fallbackEffect) {
if (mHasVibrator && mIsHapticFeedbackEnabled) {
UI_HELPER_EXECUTOR.execute(() -> {
if (Utilities.ATLEAST_R && primitiveId >= 0
&& mVibrator.areAllPrimitivesSupported(primitiveId)) {
mVibrator.vibrate(VibrationEffect.startComposition()
.addPrimitive(primitiveId, primitiveScale)
.compose(), VIBRATION_ATTRS);
} else {
mVibrator.vibrate(fallbackEffect, VIBRATION_ATTRS);
}
});
}
}
}