Examples with MotionEvent android.view.MotionEvent used on opensource projects

Example 6 with MotionEvent

use of android.view.MotionEvent in project Signal-Android by WhisperSystems.

the class BaseGestureDetector method updateStateByEvent.

protected void updateStateByEvent(MotionEvent curr) {
    final MotionEvent prev = mPrevEvent;
    // Reset mCurrEvent
    if (mCurrEvent != null) {
        mCurrEvent.recycle();
        mCurrEvent = null;
    }
    mCurrEvent = MotionEvent.obtain(curr);
    // Delta time
    mTimeDelta = curr.getEventTime() - prev.getEventTime();
    // Pressure
    mCurrPressure = curr.getPressure(curr.getActionIndex());
    mPrevPressure = prev.getPressure(prev.getActionIndex());
}

Example 7 with MotionEvent

use of android.view.MotionEvent in project Signal-Android by WhisperSystems.

the class MoveGestureDetector method updateStateByEvent.

protected void updateStateByEvent(MotionEvent curr) {
    super.updateStateByEvent(curr);
    final MotionEvent prev = mPrevEvent;
    // Focus intenal
    mCurrFocusInternal = determineFocalPoint(curr);
    mPrevFocusInternal = determineFocalPoint(prev);
    // Focus external
    // - Prevent skipping of focus delta when a finger is added or removed
    boolean mSkipNextMoveEvent = prev.getPointerCount() != curr.getPointerCount();
    mFocusDeltaExternal = mSkipNextMoveEvent ? FOCUS_DELTA_ZERO : new PointF(mCurrFocusInternal.x - mPrevFocusInternal.x, mCurrFocusInternal.y - mPrevFocusInternal.y);
    // - Don't directly use mFocusInternal (or skipping will occur). Add
    // 	 unskipped delta values to mFocusExternal instead.
    mFocusExternal.x += mFocusDeltaExternal.x;
    mFocusExternal.y += mFocusDeltaExternal.y;
}

Example 8 with MotionEvent

use of android.view.MotionEvent in project Signal-Android by WhisperSystems.

the class ShoveGestureDetector method updateStateByEvent.

@Override
protected void updateStateByEvent(MotionEvent curr) {
    super.updateStateByEvent(curr);
    final MotionEvent prev = mPrevEvent;
    float py0 = prev.getY(0);
    float py1 = prev.getY(1);
    mPrevAverageY = (py0 + py1) / 2.0f;
    float cy0 = curr.getY(0);
    float cy1 = curr.getY(1);
    mCurrAverageY = (cy0 + cy1) / 2.0f;
}

Example 9 with MotionEvent

use of android.view.MotionEvent in project Signal-Android by WhisperSystems.

the class TwoFingerGestureDetector method updateStateByEvent.

protected void updateStateByEvent(MotionEvent curr) {
    super.updateStateByEvent(curr);
    final MotionEvent prev = mPrevEvent;
    mCurrLen = -1;
    mPrevLen = -1;
    // Previous
    final float px0 = prev.getX(0);
    final float py0 = prev.getY(0);
    final float px1 = prev.getX(1);
    final float py1 = prev.getY(1);
    final float pvx = px1 - px0;
    final float pvy = py1 - py0;
    mPrevFingerDiffX = pvx;
    mPrevFingerDiffY = pvy;
    // Current
    final float cx0 = curr.getX(0);
    final float cy0 = curr.getY(0);
    final float cx1 = curr.getX(1);
    final float cy1 = curr.getY(1);
    final float cvx = cx1 - cx0;
    final float cvy = cy1 - cy0;
    mCurrFingerDiffX = cvx;
    mCurrFingerDiffY = cvy;
}

Example 10 with MotionEvent

use of android.view.MotionEvent in project Android-ObservableScrollView by ksoichiro.

the class ObservableWebView method onTouchEvent.

@Override
public boolean onTouchEvent(MotionEvent ev) {
    if (hasNoCallbacks()) {
        return super.onTouchEvent(ev);
    }
    switch(ev.getActionMasked()) {
        case MotionEvent.ACTION_DOWN:
            break;
        case MotionEvent.ACTION_UP:
        case MotionEvent.ACTION_CANCEL:
            mIntercepted = false;
            mDragging = false;
            dispatchOnUpOrCancelMotionEvent(mScrollState);
            break;
        case MotionEvent.ACTION_MOVE:
            if (mPrevMoveEvent == null) {
                mPrevMoveEvent = ev;
            }
            float diffY = ev.getY() - mPrevMoveEvent.getY();
            mPrevMoveEvent = MotionEvent.obtainNoHistory(ev);
            if (getCurrentScrollY() - diffY <= 0) {
                if (mIntercepted) {
                    // Already dispatched ACTION_DOWN event to parents, so stop here.
                    return false;
                }
                // Apps can set the interception target other than the direct parent.
                final ViewGroup parent;
                if (mTouchInterceptionViewGroup == null) {
                    parent = (ViewGroup) getParent();
                } else {
                    parent = mTouchInterceptionViewGroup;
                }
                // Get offset to parents. If the parent is not the direct parent,
                // we should aggregate offsets from all of the parents.
                float offsetX = 0;
                float offsetY = 0;
                for (View v = this; v != null && v != parent; v = (View) v.getParent()) {
                    offsetX += v.getLeft() - v.getScrollX();
                    offsetY += v.getTop() - v.getScrollY();
                }
                final MotionEvent event = MotionEvent.obtainNoHistory(ev);
                event.offsetLocation(offsetX, offsetY);
                if (parent.onInterceptTouchEvent(event)) {
                    mIntercepted = true;
                    // If the parent wants to intercept ACTION_MOVE events,
                    // we pass ACTION_DOWN event to the parent
                    // as if these touch events just have began now.
                    event.setAction(MotionEvent.ACTION_DOWN);
                    // Return this onTouchEvent() first and set ACTION_DOWN event for parent
                    // to the queue, to keep events sequence.
                    post(new Runnable() {

                        @Override
                        public void run() {
                            parent.dispatchTouchEvent(event);
                        }
                    });
                    return false;
                }
                // so delegate it to super.
                return super.onTouchEvent(ev);
            }
            break;
    }
    return super.onTouchEvent(ev);
}