android 点击屏幕关闭 软键盘

//点击屏幕 关闭输入弹出框
 @Override
 public boolean onTouchEvent(MotionEvent event) {
  InputMethodManager im = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE); 
  im.hideSoftInputFromWindow(getCurrentFocus().getApplicationWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
  return super.onTouchEvent(event);
 }