UITextView - 水平滚动？ [英] UITextView - Horizontal Scrolling?

问题描述

如何创建水平滚动UITextView？

How can I create a horizontal scrolling UITextView?

当我以编程方式设置文本时，它会添加自动换行符，所以我只能垂直滚动...

When I set my text programmatically it adds automatic line breaks, so I can only scroll vertically...

 titleView.text = @"this is a very long text. this is a very long text. this is a very long text. this is a very long text. this is a very long text.";

感谢您的回答。

编辑：
到目前为止我试过这个：

So far I tried this:

 UIScrollview *yourScrollview = [[UIScrollView alloc] initWithFrame:CGRectMake(0 ,0 ,       self.view.frame.size.width, 50)];
CGFloat textLength = [titleView.text sizeWithFont:titleView.font constrainedToSize:CGSizeMake(9999, 50) lineBreakMode:NSLineBreakByWordWrapping].width;

yourScrollview.contentSize = CGSizeMake(textLength + 200, 500); //or some value you like, you may have to try this out a few times

titleView.frame = CGRectMake(titleView.frame.origin.x, titleView.frame.origin.y, textLength, titleView.frame.size.height);

[yourScrollview addSubview: titleView];

NSLog(@"%f", textLength);

但我收到：'威胁1：信号SIGABRT'

but I received: 'Threat 1: signal SIGABRT'

推荐答案

我还没有这样做过，但我会尝试以下步骤来实现这个目标：

I have not yet done something like this, but I would try the following steps to accomplish this:

1. 创建 UIScrollview * yourScrollview = [[UIScrollView alloc] initWithFrame：CGRectMake（0,0，self.view.frame.size.width，50）]; //

使用 CGFloat textLength = [titleView.text sizeWithFont：titleView.font constrainedToSize：CGSizeMake（ 9999,50）lineBreakMode：NSLineBreakByWordWrapping] .width;
获取文本的最终长度

Use CGFloat textLength = [titleView.text sizeWithFont:titleView.font constrainedToSize:CGSizeMake(9999, 50) lineBreakMode:NSLineBreakByWordWrapping].width; to get the final length of your text

设置 yourScrollView.contentSize = CGSizeMake（textLength + 20,50）; //或者你喜欢的一些价值，你可能需要尝试几次

同时设置 titleTextView.frame = CGRectMake（titleTextView.frame.origin.x，titleTextView.frame.origin.y，textLength，titleTextView.frame.size.height）;

使titleView成为yourScrollView的子视图： [yourScrollView addSubview：titleView];

Make titleView a subview of yourScrollView: [yourScrollView addSubview: titleView];

希望这会给你一个良好的开端！

Hope this gives you a good start!

编辑：此代码将起作用：

This Code will work:

请注意我使用了 UILabel 而不是 UITextView 。

Please notice I used a UILabel instead of a UITextView.

    UILabel *titleView          = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 40)];
    titleView.text              = @"this is a very long text. this is a very long text. this is a very long text. this is a very long text. this is a very long text.";
    titleView.font              = [UIFont systemFontOfSize:18];
    titleView.backgroundColor   = [UIColor clearColor];
    titleView.numberOfLines     = 1;

    UIScrollView *myScrollView  = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 50)];
    CGFloat textLength          = [titleView.text sizeWithFont:titleView.font constrainedToSize:CGSizeMake(9999, 50) lineBreakMode:NSLineBreakByWordWrapping].width;
    myScrollView.contentSize    = CGSizeMake(textLength + 20, 50); //or some value you like, you may have to try this out a few times

    titleView.frame             = CGRectMake(titleView.frame.origin.x, titleView.frame.origin.y, textLength, titleView.frame.size.height);

    [myScrollView addSubview: titleView];
    [self.view addSubview:myScrollView];
    [titleView release];
    [myScrollView release];

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