我想更改按钮单击事件上的按钮图像。这是我正在尝试的。

-(IBAction)editObjectImage:(id)sender
{
    if (editButtonState == NO)
    {
        [editButton setImage:nil forState:UIControlStateNormal];
        [editButton setImage:[UIImage imageNamed:@"done2.png"] forState:UIControlStateNormal];
    }
    else
    {
        [editButton setImage:nil forState:UIControlStateNormal];
        [editButton setImage:[UIImage imageNamed:@"edit.png"] forState:UIControlStateNormal];
    }
}

但是我的Button图像没有改变。代码有什么问题?

最佳答案

我认为您不会绕过更改editButtonState。您的代码可以简化为。

-(IBAction)editObjectImage:(id)sender
{
    UIButton *theButton = (UIButton*)sender;
    if (editButtonState == NO) {
        [theButton setImage:[UIImage imageNamed:@"done2.png"] forState:UIControlStateNormal];
    } else {
        [theButton setImage:[UIImage imageNamed:@"edit.png"] forState:UIControlStateNormal];
    }

    editButtonState = !editButtonState;
}

关于iphone - 如何更改按钮上设置的图像,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/6211878/

10-09 01:25