iOS 手写输入法奔溃，替换隐藏键盘方法

{   UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(keyboardHide:)];

//设置成NO表示当前控件响应后会传播到其他控件上，默认为YES。

tapGestureRecognizer.cancelsTouchesInView = NO;

//将触摸事件添加到当前view

[self.view addGestureRecognizer:tapGestureRecognizer];

}

- (void)keyboardHide:(UITapGestureRecognizer *)sender

{

[self.view endEditing:YES];

}