目标C：以编程方式创建一个UIImageView [英] Objective C: Programmatically create a UIImageView

问题描述

我试图让被点击时它在一个按钮的位置与巴纽一个UIImageView加载。

I'm trying to make a UIImageView with a .png load up in the location of a button when it is clicked.

brickAnim = UIImageView.alloc;           ///////freezes during runtime
[brickAnim initWithFrame:currentBrick.frame];
[brickAnim setImage:[NSString stringWithFormat:@"brick-1.png"]];
[self.view addSubview:brickAnim];

当前砖是正在的点击按钮的名称。我已经收窄，并想通了，第一行会导致应用程序冻结并退出。我想不通，我做错了什么。

current brick is the name of the button that's being clicked. I've narrowed it down and figured out that the first line causes the app to freeze and exit. I can't figure out what I'm doing wrong.

推荐答案

尝试

brickAnim = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"brick-1.png"]];
brickAnim.frame = currentBrick.frame;
[self.view addSubview:brickAnim];

看到回应对方​​的回答后编辑：

edit after seeing response to other answer:

您声明和其他地方初始化brickAnim？如果没有，你需要在开始添加：

are you declaring and initializing brickAnim elsewhere? if not, you need to add at the beginning:

UIImageView *brickAnim = [[UIImageView alloc] ....;

和结尾：

[brickAnim release];

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