Question

我目前使用以下代码UITextView中包含UIViewController：

UIViewController *container = [[UIViewController alloc] init];
container.view.frame = CGRectMake(0, 0,
[UIScreen mainScreen].bounds.size.width, 1000);
//[UIScreen mainScreen].bounds.size.height

container.view.userInteractionEnabled = YES;
container.view.clipsToBounds = YES;

UIImageView *imgView = [[UIImageView alloc] 
initWithImage:[UIImage imageNamed:@"myImage.png"]];
imgView.frame = container.view.frame;

imgView.userInteractionEnabled = YES;
[container.view addSubview:imgView];
[imgView release];

UITextView *textContained = [[UITextView alloc] 
initWithFrame:CGRectMake(0, 0, container.view.bounds.size.width, 1000)];
//container.view.bounds.size.height

textContained.font = [UIFont fontWithName:@"Calibri" size:14];
textContained.scrollEnabled = YES;
textContained.editable = NO;

textContained.textColor = [UIColor whiteColor];
textContained.backgroundColor = [UIColor clearColor];
textContained.font = [UIFont boldSystemFontOfSize:14];

textContained.userInteractionEnabled = YES;
textContained.alwaysBounceVertical = YES;
textContained.contentSize = CGSizeMake(container.view.frame.size.width,
container.view.frame.size.height);

然后我将UItextView文本属性设置为一些文本，该文本超出了当前的屏幕大小。然后，我使用以下代码将UITextView添加到我的容器中。

 switch (indexPath.row) {
    case 0:
        textContained.text = @"LOTS AND LOTS OF TEXT";

        [container.view addSubview:textContained];
        [self.navigationController pushViewController:container animated:YES];
        [textContained release];

        break; 
    default:
        break;
 }
 [container release];

当我测试此代码时，文本在UITextView中显示正常，一切看起来都不错。但问题是当我尝试向下滚动以查看文本的其余部分时。每次我向下滚动UITextView滚动回到原来的位置。我已经尝试了几种方法来实现这一点，但我认为我需要一些新鲜的眼睛来看看我做错了什么。

非常感谢任何帮助。

Answer 1

首先，您不想设置UITextView的contentSize，因为它是由文本长度自动决定的。

尝试使textView的高度更小。例如：

UITextView *textContained = [[UITextView alloc] 
initWithFrame:CGRectMake(0, 0, container.view.bounds.size.width, 50)];

并提供更多文字，例如：

textContained.text = @"LOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\n\nLOTS AND LOTS OF TEXT\nLOTS AND LOTS OF TEXT\n";

UITextView，用户滚动uitextview但它然后快速回到原始位置，有什么不对吗？

1 个答案: