カスタムの触覚効果を作成する

val timings: LongArray = longArrayOf(50, 50, 50, 50, 50, 100, 350, 25, 25, 25, 25, 200)
val amplitudes: IntArray = intArrayOf(33, 51, 75, 113, 170, 255, 0, 38, 62, 100, 160, 255)
val repeatIndex = -1 // Do not repeat.

vibrator.vibrate(VibrationEffect.createWaveform(timings, amplitudes, repeatIndex))

long[] timings = new long[] { 50, 50, 50, 50, 50, 100, 350, 25, 25, 25, 25, 200 };
int[] amplitudes = new int[] { 33, 51, 75, 113, 170, 255, 0, 38, 62, 100, 160, 255 };
int repeatIndex = -1; // Do not repeat.

vibrator.vibrate(VibrationEffect.createWaveform(timings, amplitudes, repeatIndex));

void startVibrating() {
  val timings: LongArray = longArrayOf(50, 50, 100, 50, 50)
  val amplitudes: IntArray = intArrayOf(64, 128, 255, 128, 64)
  val repeat = 1 // Repeat from the second entry, index = 1.
  VibrationEffect repeatingEffect = VibrationEffect.createWaveform(timings, amplitudes, repeat)
  // repeatingEffect can be used in multiple places.

  vibrator.vibrate(repeatingEffect)
}

void stopVibrating() {
  vibrator.cancel()
}

void startVibrating() {
  long[] timings = new long[] { 50, 50, 100, 50, 50 };
  int[] amplitudes = new int[] { 64, 128, 255, 128, 64 };
  int repeat = 1; // Repeat from the second entry, index = 1.
  VibrationEffect repeatingEffect = VibrationEffect.createWaveform(timings, amplitudes, repeat);
  // repeatingEffect can be used in multiple places.

  vibrator.vibrate(repeatingEffect);
}

void stopVibrating() {
  vibrator.cancel();
}

if (vibrator.hasAmplitudeControl()) {
  vibrator.vibrate(VibrationEffect.createWaveform(smoothTimings, amplitudes, smoothRepeatIdx))
} else {
  vibrator.vibrate(VibrationEffect.createWaveform(onOffTimings, onOffRepeatIdx))
}

if (vibrator.hasAmplitudeControl()) {
  vibrator.vibrate(VibrationEffect.createWaveform(smoothTimings, amplitudes, smoothRepeatIdx));
} else {
  vibrator.vibrate(VibrationEffect.createWaveform(onOffTimings, onOffRepeatIdx));
}

vibrator.vibrate(
    VibrationEffect.startComposition().addPrimitive(
      VibrationEffect.Composition.PRIMITIVE_SLOW_RISE
    ).addPrimitive(
      VibrationEffect.Composition.PRIMITIVE_CLICK
    ).compose()
  )

vibrator.vibrate(
    VibrationEffect.startComposition()
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SLOW_RISE)
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_CLICK)
        .compose());

val delayMs = 100
vibrator.vibrate(
    VibrationEffect.startComposition().addPrimitive(
      VibrationEffect.Composition.PRIMITIVE_SPIN, 0.8f
    ).addPrimitive(
      VibrationEffect.Composition.PRIMITIVE_SPIN, 0.6f
    ).addPrimitive(
      VibrationEffect.Composition.PRIMITIVE_THUD, 1.0f, delayMs
    ).compose()
  )

int delayMs = 100;
vibrator.vibrate(
    VibrationEffect.startComposition()
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SPIN, 0.8f)
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SPIN, 0.6f)
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_THUD, 1.0f, delayMs)
        .compose());

val primitive = VibrationEffect.Composition.PRIMITIVE_LOW_TICK

if (vibrator.areAllPrimitivesSupported(primitive)) {
  vibrator.vibrate(VibrationEffect.startComposition().addPrimitive(primitive).compose())
} else {
  // Play a predefined effect or custom pattern as a fallback.
}

int primitive = VibrationEffect.Composition.PRIMITIVE_LOW_TICK;

if (vibrator.areAllPrimitivesSupported(primitive)) {
  vibrator.vibrate(VibrationEffect.startComposition().addPrimitive(primitive).compose());
} else {
  // Play a predefined effect or custom pattern as a fallback.
}

val effects: IntArray = intArrayOf(
  VibrationEffect.Composition.PRIMITIVE_LOW_TICK,
  VibrationEffect.Composition.PRIMITIVE_TICK,
  VibrationEffect.Composition.PRIMITIVE_CLICK
)
val supported: BooleanArray = vibrator.arePrimitivesSupported(primitives);

int[] primitives = new int[] {
  VibrationEffect.Composition.PRIMITIVE_LOW_TICK,
  VibrationEffect.Composition.PRIMITIVE_TICK,
  VibrationEffect.Composition.PRIMITIVE_CLICK
};
boolean[] supported = vibrator.arePrimitivesSupported(effects);

@Composable
fun ResistScreen() {
  // Control variables for the dragging of the indicator.
  var isDragging by remember { mutableStateOf(false) }
  var dragOffset by remember { mutableStateOf(0f) }

  // Only vibrates while the user is dragging
  if (isDragging) {
    LaunchedEffect(Unit) {
      // Continuously run the effect for vibration to occur even when the view
      // is not being drawn, when user stops dragging midway through gesture.
      while (true) {
        // Calculate the interval inversely proportional to the drag offset.
        val vibrationInterval = calculateVibrationInterval(dragOffset)
        // Calculate the scale directly proportional to the drag offset.
        val vibrationScale = calculateVibrationScale(dragOffset)

        delay(vibrationInterval)
        vibrator.vibrate(
          VibrationEffect.startComposition().addPrimitive(
            VibrationEffect.Composition.PRIMITIVE_LOW_TICK,
            vibrationScale
          ).compose()
        )
      }
    }
  }

  Screen() {
    Column(
      Modifier
        .draggable(
          orientation = Orientation.Vertical,
          onDragStarted = {
            isDragging = true
          },
          onDragStopped = {
            isDragging = false
          },
          state = rememberDraggableState { delta ->
            dragOffset += delta
          }
        )
    ) {
      // Build the indicator UI based on how much the user has dragged it.
      ResistIndicator(dragOffset)
    }
  }
}

class DragListener implements View.OnTouchListener {
  // Control variables for the dragging of the indicator.
  private int startY;
  private int vibrationInterval;
  private float vibrationScale;

  @Override
  public boolean onTouch(View view, MotionEvent event) {
    switch (event.getAction()) {
      case MotionEvent.ACTION_DOWN:
        startY = event.getRawY();
        vibrationInterval = calculateVibrationInterval(0);
        vibrationScale = calculateVibrationScale(0);
        startVibration();
        break;
      case MotionEvent.ACTION_MOVE:
        float dragOffset = event.getRawY() - startY;
        // Calculate the interval inversely proportional to the drag offset.
        vibrationInterval = calculateVibrationInterval(dragOffset);
        // Calculate the scale directly proportional to the drag offset.
        vibrationScale = calculateVibrationScale(dragOffset);
        // Build the indicator UI based on how much the user has dragged it.
        updateIndicator(dragOffset);
        break;
      case MotionEvent.ACTION_CANCEL:
      case MotionEvent.ACTION_UP:
        // Only vibrates while the user is dragging
        cancelVibration();
        break;
    }
    return true;
  }

  private void startVibration() {
    vibrator.vibrate(
          VibrationEffect.startComposition()
            .addPrimitive(VibrationEffect.Composition.PRIMITIVE_LOW_TICK, vibrationScale)
            .compose());

    // Continuously run the effect for vibration to occur even when the view
    // is not being drawn, when user stops dragging midway through gesture.
    handler.postDelayed(this::startVibration, vibrationInterval);
  }

  private void cancelVibration() {
    handler.removeCallbacksAndMessages(null);
  }
}

enum class ExpandShapeState {
    Collapsed,
    Expanded
}

@Composable
fun ExpandScreen() {
  // Control variable for the state of the indicator.
  var currentState by remember { mutableStateOf(ExpandShapeState.Collapsed) }

  // Animation between expanded and collapsed states.
  val transitionData = updateTransitionData(currentState)

  Screen() {
    Column(
      Modifier
        .clickable(
          {
            if (currentState == ExpandShapeState.Collapsed) {
              currentState = ExpandShapeState.Expanded
              vibrator.vibrate(
                VibrationEffect.startComposition().addPrimitive(
                  VibrationEffect.Composition.PRIMITIVE_SLOW_RISE,
                  0.3f
                ).addPrimitive(
                  VibrationEffect.Composition.PRIMITIVE_QUICK_FALL,
                  0.3f
                ).compose()
              )
            } else {
              currentState = ExpandShapeState.Collapsed
              vibrator.vibrate(
                VibrationEffect.startComposition().addPrimitive(
                  VibrationEffect.Composition.PRIMITIVE_SLOW_RISE
                ).compose()
              )
          }
        )
    ) {
      // Build the indicator UI based on the current state.
      ExpandIndicator(transitionData)
    }
  }
}

class ClickListener implements View.OnClickListener {
  private final Animation expandAnimation;
  private final Animation collapseAnimation;
  private boolean isExpanded;

  ClickListener(Context context) {
    expandAnimation = AnimationUtils.loadAnimation(context, R.anim.expand);
    expandAnimation.setAnimationListener(new Animation.AnimationListener() {

      @Override
      public void onAnimationStart(Animation animation) {
        vibrator.vibrate(
          VibrationEffect.startComposition()
            .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SLOW_RISE, 0.3f)
            .addPrimitive(VibrationEffect.Composition.PRIMITIVE_QUICK_FALL, 0.3f)
            .compose());
      }
    });

    collapseAnimation = AnimationUtils.loadAnimation(context, R.anim.collapse);
    collapseAnimation.setAnimationListener(new Animation.AnimationListener() {

      @Override
      public void onAnimationStart(Animation animation) {
        vibrator.vibrate(
          VibrationEffect.startComposition()
            .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SLOW_RISE)
            .compose());
      }
    });
  }

  @Override
  public void onClick(View view) {
    view.startAnimation(isExpanded ? collapseAnimation : expandAnimation);
    isExpanded = !isExpanded;
  }
}

@Composable
fun WobbleScreen() {
    // Control variables for the dragging and animating state of the elastic.
    var dragDistance by remember { mutableStateOf(0f) }
    var isWobbling by remember { mutableStateOf(false) }
 
    // Use drag distance to create an animated float value behaving like a spring.
    val dragDistanceAnimated by animateFloatAsState(
        targetValue = if (dragDistance > 0f) dragDistance else 0f,
        animationSpec = spring(
            dampingRatio = Spring.DampingRatioHighBouncy,
            stiffness = Spring.StiffnessMedium
        ),
    )
 
    if (isWobbling) {
        LaunchedEffect(Unit) {
            while (true) {
                val displacement = dragDistanceAnimated / MAX_DRAG_DISTANCE
                // Use some sort of minimum displacement so the final few frames
                // of animation don't generate a vibration.
                if (displacement > SPIN_MIN_DISPLACEMENT) {
                    vibrator.vibrate(
                        VibrationEffect.startComposition().addPrimitive(
                            VibrationEffect.Composition.PRIMITIVE_SPIN,
                            nextSpinScale(displacement)
                        ).addPrimitive(
                          VibrationEffect.Composition.PRIMITIVE_SPIN,
                          nextSpinScale(displacement)
                        ).compose()
                    )
                }
                // Delay the next check for a sufficient duration until the current
                // composition finishes. Note that you can use
                // Vibrator.getPrimitiveDurations API to calculcate the delay.
                delay(VIBRATION_DURATION)
            }
        }
    }
 
    Box(
        Modifier
            .fillMaxSize()
            .draggable(
                onDragStopped = {
                    isWobbling = true
                    dragDistance = 0f
                },
                orientation = Orientation.Vertical,
                state = rememberDraggableState { delta ->
                    isWobbling = false
                    dragDistance += delta
                }
            )
    ) {
        // Draw the wobbling shape using the animated spring-like value.
        WobbleShape(dragDistanceAnimated)
    }
}

// Calculate a random scale for each spin to vary the full effect.
fun nextSpinScale(displacement: Float): Float {
  // Generate a random offset in [-0.1,+0.1] to be added to the vibration
  // scale so the spin effects have slightly different values.
  val randomOffset: Float = Random.Default.nextFloat() * 0.2f - 0.1f
  return (displacement + randomOffset).absoluteValue.coerceIn(0f, 1f)
}

class AnimationListener implements DynamicAnimation.OnAnimationUpdateListener {
  private final Random vibrationRandom = new Random(seed);
  private final long lastVibrationUptime;

  @Override
  public void onAnimationUpdate(DynamicAnimation animation, float value, float velocity) {
    // Delay the next check for a sufficient duration until the current
    // composition finishes. Note that you can use
    // Vibrator.getPrimitiveDurations API to calculcate the delay.
    if (SystemClock.uptimeMillis() - lastVibrationUptime < VIBRATION_DURATION) {
      return;
    }

    float displacement = calculateRelativeDisplacement(value);

    // Use some sort of minimum displacement so the final few frames
    // of animation don't generate a vibration.
    if (displacement < SPIN_MIN_DISPLACEMENT) {
      return;
    }

    lastVibrationUptime = SystemClock.uptimeMillis();
    vibrator.vibrate(
      VibrationEffect.startComposition()
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SPIN, nextSpinScale(displacement))
        .addPrimitive(VibrationEffect.Composition.PRIMITIVE_SPIN, nextSpinScale(displacement))
        .compose());
  }

  // Calculate a random scale for each spin to vary the full effect.
  float nextSpinScale(float displacement) {
    // Generate a random offset in [-0.1,+0.1] to be added to the vibration
    // scale so the spin effects have slightly different values.
    float randomOffset = vibrationRandom.nextFloat() * 0.2f - 0.1f
    return MathUtils.clamp(displacement + randomOffset, 0f, 1f)
  }
}

enum class BallPosition {
    Start,
    End
}

@Composable
fun BounceScreen() {
  // Control variable for the state of the ball.
  var ballPosition by remember { mutableStateOf(BallPosition.Start) }
  var bounceCount by remember { mutableStateOf(0) }

  // Animation for the bouncing ball.
  var transitionData = updateTransitionData(ballPosition)
  val collisionData = updateCollisionData(transitionData)

  // Ball is about to contact floor, only vibrating once per collision.
  var hasVibratedForBallContact by remember { mutableStateOf(false) }
  if (collisionData.collisionWithFloor) {
    if (!hasVibratedForBallContact) {
      val vibrationScale = 0.7.pow(bounceCount++).toFloat()
      vibrator.vibrate(
        VibrationEffect.startComposition().addPrimitive(
          VibrationEffect.Composition.PRIMITIVE_THUD,
          vibrationScale
        ).compose()
      )
      hasVibratedForBallContact = true
    }
  } else {
    // Reset for next contact with floor.
    hasVibratedForBallContact = false
  }

  Screen() {
    Box(
      Modifier
        .fillMaxSize()
        .clickable {
          if (transitionData.isAtStart) {
            ballPosition = BallPosition.End
          } else {
            ballPosition = BallPosition.Start
            bounceCount = 0
          }
        },
    ) {
      // Build the ball UI based on the current state.
      BouncingBall(transitionData)
    }
  }
}

class ClickListener implements View.OnClickListener {
  @Override
  public void onClick(View view) {
    view.animate()
      .translationY(targetY)
      .setDuration(3000)
      .setInterpolator(new BounceInterpolator())
      .setUpdateListener(new AnimatorUpdateListener() {

        boolean hasVibratedForBallContact = false;
        int bounceCount = 0;

        @Override
        public void onAnimationUpdate(ValueAnimator animator) {
          boolean valueBeyondThreshold = (float) animator.getAnimatedValue() > 0.98;
          if (valueBeyondThreshold) {
            if (!hasVibratedForBallContact) {
              float vibrationScale = (float) Math.pow(0.7, bounceCount++);
              vibrator.vibrate(
                VibrationEffect.startComposition()
                  .addPrimitive(VibrationEffect.Composition.PRIMITIVE_THUD, vibrationScale)
                  .compose());
              hasVibratedForBallContact = true;
            }
          } else {
            // Reset for next contact with floor.
            hasVibratedForBallContact = false;
          }
        }
      });
  }
}