Android点击空白区域，隐藏输入法软键盘

android:windowSoftInputMode="stateHidden"

@Override
    public boolean onTouchEvent(MotionEvent event) {
        if(null != this.getCurrentFocus()){
            /**
             * 点击空白位置 隐藏软键盘
             */
            InputMethodManager mInputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
            assert mInputMethodManager != null;
            return mInputMethodManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(), 0);
        }
        return super .onTouchEvent(event);
    }