출처 : http://stackoverflow.com/questions/2646028/android-horizontalscrollview-within-scrollview-touch-handling
public class CustomScrollView extends ScrollView {
private GestureDetector gestureDetector;
View.OnTouchListener gestureListener;
public CustomScrollView(Context context, AttributeSet attrs) {
super(context, attrs);
gestureDetector = new GestureDetector(new YScrollDetector());
setFadingEdgeLength(0);
}
@Override
public boolean onTouchEvent(MotionEvent ev) {
return super.onTouchEvent(ev);
}
@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
//Call super first because it does some hidden motion event handling
boolean result = super.onInterceptTouchEvent(ev);
//Now see if we are scrolling vertically with the custom gesture detector
if (gestureDetector.onTouchEvent(ev)) {
return result;
}
//If not scrolling vertically (more y than x), don't hijack the event.
else {
return false;
}
}
// Return false if we're scrolling in the x direction
class YScrollDetector extends SimpleOnGestureListener {
@Override
public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {
try {
if (Math.abs(distanceY) > Math.abs(distanceX)) {
return true;
} else {
return false;
}
} catch (Exception e) {
// nothing
}
return false;
}
}