点击空白区域关闭软键盘

很多时候，需求需要点击输入框其他地方，关闭软键盘，下面分享一个utils

public class HideKeyBroadUtils {

    private HideKeyBroadUtils(){

    }

    /**
     * 隐藏软键盘
     * @param activity
     * @param ev
     */
    public static void hide(Activity activity, MotionEvent ev){
        if (ev.getAction() == MotionEvent.ACTION_DOWN) {
            View view = activity.getCurrentFocus();
            if (isHideInput(view, ev)) {
                HideSoftInput(activity,view.getWindowToken());
            }
        }
    }

    // 判定是否需要隐藏
    private static boolean isHideInput(View v, MotionEvent ev) {
        if (v != null && (v instanceof EditText)) {
            int[] l = { 0, 0 };
            v.getLocationInWindow(l);
            int left = l[0], top = l[1], bottom = top + v.getHeight(), right = left
                    + v.getWidth();
            if (ev.getX() > left && ev.getX() < right && ev.getY() > top
                    && ev.getY() < bottom) {
                return false;
            } else {
                return true;
            }
        }
        return false;
    }

    // 隐藏软键盘
    private static void HideSoftInput(Activity activity,IBinder token) {
        if (token != null) {
            InputMethodManager manager = (InputMethodManager)
                    activity.getSystemService(Context.INPUT_METHOD_SERVICE);
            manager.hideSoftInputFromWindow(token,
                    InputMethodManager.HIDE_NOT_ALWAYS);
        }
    }
}

只需重写activity里的dispatchTouchEvent方法，然后调用如下

   @Override
    public boolean dispatchTouchEvent(MotionEvent ev) {
        HideKeyBroadUtils.hide(this,ev);
        return super.dispatchTouchEvent(ev);
    }