我有一个包含单个片段的Activity：
@H_404_2@getFragmentManager().beginTransaction().add(android.R.id.content,fragment1).commit();
我的问题是,我如何检测手势？我尝试使用OnTouchListener,也使用onInterceptTouchEvent方法.基本上我想检测滑动.我的SwipeGestureDetector看起来像这样：
@H_404_2@public class SwipeGestureDetector extends SimpleOnGestureListener { // ... @Override public boolean onDown(MotionEvent e) { return true; } public boolean onFling(MotionEvent e1,MotionEvent e2,float velocityX,float velocityY) { try { if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) return false; if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { // right to left swipe } else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) { // left to right swipe } } catch (Exception e) { // nothing } return false; } }然后我在我的活动中注册它：
@H_404_2@@Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // .. SwipeGestureDetector swipeDetector = new SwipeGestureDetector(); final GestureDetector detector = new GestureDetector(this,swipeDetector); findViewById(android.R.id.content).setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(View v,MotionEvent event) { return detector.onTouchEvent(event); } }); }不幸的是,没有检测到滑动手势.我怎样才能做到这一点？请不要建议使用ViewPager,我不能使用它.
