@Override public boolean onTouchEvent(MotionEvent ev) { // Intercept ListView's touch event if (mScroller != null && mScroller.onTouchEvent(ev)) { return true; } if (mGestureDetector == null) { // Create a new GestureDetector -- 手势探测器 mGestureDetector = new GestureDetector( getContext(), new GestureDetector.SimpleOnGestureListener() { @Override public boolean onFling( MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { if (mScroller != null) { mScroller.show(); } return super.onFling(e1, e2, velocityX, velocityY); } }); } mGestureDetector.onTouchEvent(ev); return super.onTouchEvent(ev); }
@Override public boolean onTouchEvent(MotionEvent ev) { // Intercept ListView's touch event if (mScroller != null && mScroller.onTouchEvent(ev)) return true; if (mGestureDetector == null) { mGestureDetector = new GestureDetector( getContext(), new GestureDetector.SimpleOnGestureListener() { @Override public boolean onFling( MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) { // If fling happens, index bar shows if (mScroller != null) mScroller.show(); return super.onFling(e1, e2, velocityX, velocityY); } }); } mGestureDetector.onTouchEvent(ev); return super.onTouchEvent(ev); }