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

Example 71 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);
}

Example 72 with MotionEvent

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

the class TouchInterceptionFrameLayout method duplicateTouchEventForChildren.

/**
     * Duplicate touch events to child views.
     * We want to dispatch a down motion event and the move events to
     * child views, but calling dispatchTouchEvent() causes StackOverflowError.
     * Therefore we do it manually.
     *
     * @param ev            Motion event to be passed to children.
     * @param pendingEvents Pending events like ACTION_DOWN. This will be passed to the children before ev.
     */
private void duplicateTouchEventForChildren(MotionEvent ev, MotionEvent... pendingEvents) {
    if (ev == null) {
        return;
    }
    for (int i = getChildCount() - 1; 0 <= i; i--) {
        View childView = getChildAt(i);
        if (childView != null) {
            Rect childRect = new Rect();
            childView.getHitRect(childRect);
            MotionEvent event = MotionEvent.obtainNoHistory(ev);
            if (!childRect.contains((int) event.getX(), (int) event.getY())) {
                continue;
            }
            float offsetX = -childView.getLeft();
            float offsetY = -childView.getTop();
            boolean consumed = false;
            if (pendingEvents != null) {
                for (MotionEvent pe : pendingEvents) {
                    if (pe != null) {
                        MotionEvent peAdjusted = MotionEvent.obtainNoHistory(pe);
                        peAdjusted.offsetLocation(offsetX, offsetY);
                        consumed |= childView.dispatchTouchEvent(peAdjusted);
                    }
                }
            }
            event.offsetLocation(offsetX, offsetY);
            consumed |= childView.dispatchTouchEvent(event);
            if (consumed) {
                break;
            }
        }
    }
}

Example 73 with MotionEvent

use of android.view.MotionEvent in project KJFrameForAndroid by kymjs.

the class Browser method initWidget.

@Override
public void initWidget() {
    super.initWidget();
    initWebView();
    initBarAnim();
    mGestureDetector = new GestureDetector(aty, new MyGestureListener());
    mWebView.loadUrl(mCurrentUrl);
    mWebView.setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            return mGestureDetector.onTouchEvent(event);
        }
    });
}

Example 74 with MotionEvent

use of android.view.MotionEvent in project Lazy by l123456789jy.

the class NoPreloadViewPager method beginFakeDrag.

/**
     * Start a fake drag of the pager.
     *
     * <p>A fake drag can be useful if you want to synchronize the motion of the ViewPager
     * with the touch scrolling of another view, while still letting the ViewPager
     * control the snapping motion and fling behavior. (e.g. parallax-scrolling tabs.)
     * Call {@link #fakeDragBy(float)} to simulate the actual drag motion. Call
     * {@link #endFakeDrag()} to complete the fake drag and fling as necessary.
     *
     * <p>During a fake drag the ViewPager will ignore all touch events. If a real drag
     * is already in progress, this method will return false.
     *
     * @return true if the fake drag began successfully, false if it could not be started.
     *
     * @see #fakeDragBy(float)
     * @see #endFakeDrag()
     */
public boolean beginFakeDrag() {
    if (mIsBeingDragged) {
        return false;
    }
    mFakeDragging = true;
    setScrollState(SCROLL_STATE_DRAGGING);
    mInitialMotionX = mLastMotionX = 0;
    if (mVelocityTracker == null) {
        mVelocityTracker = VelocityTracker.obtain();
    } else {
        mVelocityTracker.clear();
    }
    final long time = SystemClock.uptimeMillis();
    final MotionEvent ev = MotionEvent.obtain(time, time, MotionEvent.ACTION_DOWN, 0, 0, 0);
    mVelocityTracker.addMovement(ev);
    ev.recycle();
    mFakeDragBeginTime = time;
    return true;
}

Example 75 with MotionEvent

use of android.view.MotionEvent in project rainbow by juankysoriano.

the class RainbowInputController method obtainEventWithNewPosition.

private MotionEvent obtainEventWithNewPosition(@NonNull MotionEvent event, float newEventX, float newEventY) {
    MotionEvent motionEvent = MotionEvent.obtain(event);
    motionEvent.setLocation(newEventX, newEventY);
    return motionEvent;
}