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Closed 11 years ago.

创建了UIView* my View, 然后创建了 UITextVIew *tempUITextView, 并将其文本设置为

[tempUITextView setText:@"some text"];
[myView addSubView: tempUITextView];

当我运行代码时, 它给出了一个错误 : < strong > 终结应用程序, 原因是未发现例外 NSInvalid 参数例外, 理由 : - [UIView setText:]:

Answer 1

你犯的错误就在这行里

UITextView* tempUITextView =[[[UIView alloc]initWithFrame:CGRectMake(0, 0, 100, 30)] autorelease];

替换为

UITextView* tempUITextView =[[[UITextView alloc]initWithFrame:CGRectMake(0, 0, 100, 30)]autorelease];

Answer 2

执行下列事项:

UIView *myView = [[UIView alloc]initWithFrame:CGRectMake(0, 280, 320, 180)];//Any frame you want to set
[myView setBackgroundColor:[UIColor redColor]]; // Given color to differntiate between myView and tempUITextView
UITextView *tempUITextView = [[UITextView alloc]initWithFrame:CGRectMake(0, 0, 200, 100)];//Any frame for tempUITextView in myView
[tempUITextView setText:@"hi"];
[myView addSubview:tempUITextView];
[self.view addSubview:myView];

Answer 3

您是否在查看和文本视图中使用 IB 输出列表? 如果是, 请检查您是否连接了错误对象的入口。

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