android 点击输入框之外的地方隐藏软键盘

public void setupViewTouch(View view) {
if (!(view instanceof EditText)) {
view.setOnTouchListener(new OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
if (v.getId() != R.id.bt_QaSend) {
hideSoftKeyboard(mParentActivity);
}
return false;
}
});
}


if (view instanceof ViewGroup) {
for (int i = 0; i < ((ViewGroup) view).getChildCount(); i++) {
View innerView = ((ViewGroup) view).getChildAt(i);
setupViewTouch(innerView);
}
}
}

public  void hideSoftKeyboard(Activity activity) {
InputMethodManager inputMethodManager = (InputMethodManager) activity
.getSystemService(Activity.INPUT_METHOD_SERVICE);
inputMethodManager.hideSoftInputFromWindow(activity.getCurrentFocus()
.getWindowToken(), 0);
}