解决当UITextView高度小于100时候光标晃动(文字向上偏移)

- (void)viewDidLoad {

    [super viewDidLoad];

    self.view.backgroundColor = NORMAL_BKG_GREY;

    self.navigationController.navigationBar.translucent = NO;

    

    //上面背景

    UIView *shangView = [UIView new];

    [self.view addSubview:shangView];

    [shangView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.mas_equalTo(43);

        make.left.mas_equalTo(self.view);

        make.right.mas_equalTo(self.view);

        make.height.mas_equalTo(43);

    }];

    shangView.backgroundColor = [UIColor whiteColor];

    

    //题目输入

    self.titleTextView = [UITextView new];

    [shangView addSubview:self.titleTextView];

    [self.titleTextView mas_makeConstraints:^(MASConstraintMaker *make) {

        make.top.mas_equalTo(shangView.mas_top);

        make.left.mas_equalTo(TEXT_LINE_DISTANCE);

        make.right.mas_equalTo(-TEXT_LINE_DISTANCE);

        make.height.mas_equalTo(43);

    }];

    //解决当UITextView高度小于100时候光标晃动关键代码

    self.automaticallyAdjustsScrollViewInsets = NO;

    self.titleTextView.textAlignment = NSTextAlignmentLeft;

    self.titleTextView.font = MIDDLE_FONT;

    self.titleTextView.backgroundColor = [UIColor clearColor];

}