Gallery 判断 scroll 开始和停止

想在Gallery 开始滑动时和滑动结束时做一些处理，就需要知道滑动开始和停止的时机

1.开始的时机

Gallery mCoverFlowView ＝ new Gallery(context);

final GestureDetectorCompat mGestureDetectorCompat = new GestureDetectorCompat(this, this);

mCoverFlowView.setOnTouchListener(new OnTouchListener() {

@Override

public boolean onTouch(View v, MotionEvent event) {

return mGestureDetectorCompat.onTouchEvent(event);

}

});

　　

});

然后可以在OnGestureListener中的

@Override

public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,

float distanceY) {

//添加滑动开始时 处理逻辑

return false;

}

2.判断gallery 何时停止

mCoverFlowView.setCallbackDuringFling(false);

mCoverFlowView.setOnItemSelectedListener(new OnItemSelectedListener() {

@Override

public void onItemSelected(AdapterView<?> parent, View view,

int position, long id) {

　　//添加滑动结束 处理逻辑

}

@Override

public void onNothingSelected(AdapterView<?> parent) {

}

});