UITextView滚动不起作用

滚动不在UITextView中，用于以下代码中的messageLabel sizeDictionary是一个字典，它包含根据文本计算的所有标签/ textview的大小。我已经设置了scrollEnabled以及userInteractionEnabled属性为true。UITextView滚动不起作用

-(void)viewDidAppear:(BOOL)animated{ 
    [super viewDidAppear:animated]; 
    self.view.backgroundColor = [UIColor colorWithWhite:0.91 alpha:1]; 
    self.messageLabel = [[UITextView alloc] init]; 

    if(self.feed.message){ 
     self.messageLabel.text = self.feed.message; 
    }else if (self.feed.story){ 
     self.messageLabel.text = self.feed.story; 
    } 
    self.messageLabel.font = [UIFont fontWithName:@"Droid Sans" size:15]; 
    self.messageLabel.editable = NO; 
    self.messageLabel.dataDetectorTypes = UIDataDetectorTypeAll; 
    self.messageLabel.scrollEnabled = true; 
    self.messageLabel.userInteractionEnabled = true; 

    self.messageLabel.textColor = [UIColor colorWithRed:0.078 green:0.094 blue:0.137 alpha:1.00]; 
self.cardView = [[UIView alloc] init]; 
self.cardView.backgroundColor = [UIColor colorWithWhite:0.95 alpha:1]; 
[self.view setTranslatesAutoresizingMaskIntoConstraints:false]; 
self.cardView.frame = CGRectMake(5, 5 + self.navigationController.navigationBar.frame.size.height, self.view.bounds.size.width - 10, [self.sizeDictionary[@"imageHeight"] floatValue]+ [self.sizeDictionary[@"messageHeight"] floatValue] + [self.sizeDictionary[@"nameHeight"] floatValue] + 20); 
self.cardView.backgroundColor = [UIColor whiteColor]; 
[self.view addSubview:self.cardView]; 
self.nameLabel.frame = CGRectMake(10, 15+ self.navigationController.navigationBar.frame.size.height, self.view.bounds.size.width, 51); 

self.dateLabel.frame = CGRectMake(15, 45+ self.navigationController.navigationBar.frame.size.height, self.view.bounds.size.width, 25); 
self.messageLabel.frame = CGRectMake(10, [self.sizeDictionary[@"nameHeight"] floatValue] + 20 + self.navigationController.navigationBar.frame.size.height, self.view.bounds.size.width - 20, [self.sizeDictionary[@"messageHeight"] floatValue]); 
self.messageLabel.backgroundColor = [UIColor whiteColor]; 
[self.view addSubview:self.messageLabel]; 
[self.view addSubview:self.dateLabel]; 
[self.view addSubview:self.nameLabel]; 
if (self.image) { 
    self.imageView.frame = CGRectMake(10, [self.sizeDictionary[@"nameHeight"] floatValue] + [self.sizeDictionary[@"messageHeight"] floatValue] + 25 + self.navigationController.navigationBar.frame.size.height , self.view.bounds.size.width - 20, [self.sizeDictionary[@"imageHeight"] floatValue]); 
    [self.view addSubview:self.imageView]; 
    } 
}

编辑：添加

self.messageLabel.layer.borderWidth = 1 ; 
self.messageLabel.layer.borderColor = [UIColor redColor].CGColor;

来源

2016-06-20 Ravin Kohli

有更多的文字超过8并且被隐藏？ –

是的，总共有10分。这个屏幕只是文本来自json的一个例子。在前面的表中调用didSelectAtIndexPath方法时，将显示此视图。文本实际上是在didSelect方法中传递的 –

你可以添加这个代码的和平'self.messageLabel.layer.borderWidth = 1;''self.messageLabel.layer.borderColor = [UIColor redColor] .CGColor;'？并检查您的messageLabel框架是否完全可见？ –

那么容易那么你的问题是，你需要messageLabel框架调整messageLabel框架和意志成为scrolleable因为您的messageLabel.frame.heigth将比您的小0内容大小

调整这条线

self.messageLabel.frame = CGRectMake(10, [self.sizeDictionary[@"nameHeight"] floatValue] + 20 + self.navigationController.navigationBar.frame.size.height, self.view.bounds.size.width - 20, [self.sizeDictionary[@"messageHeight"] floatValue]);

您self.messageLabel.frame不容像大小你需要通过你那里，如果出现这种情况那么你UITextView永远不会滚动对象，因为你的frame.height会等于你的内容尺寸

我希望这可以帮助你

来源

2016-06-20 19:51:42

UITextView滚动不起作用

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