objective-c - 单击更改 UIbutton 图像

Question

我已将 5 张图像存储在一个可变数组中，并通过将它们附加到 UIButton 来在 iPhone View 中随机显示它们。现在我想更改我将单击的按钮上的图像。但在我的代码中，只有最后一张图像发生变化，而我调用操作的图像不会发生变化。

Answer 1

这是 3 个按钮的代码，突出显示了单击的按钮

-(void) changeButtonImage:(id) sender{
    [button1 setBackgroundImage:[UIImage imageNamed:@"button1Image_off.png"] forState:UIControlStateNormal];
    [button2 setBackgroundImage:[UIImage imageNamed:@"button2Image_off.png"] forState:UIControlStateNormal];
    [button3 setBackgroundImage:[UIImage imageNamed:@"button3Image_off.png"] forState:UIControlStateNormal];

    UIButton *button = sender;

    if (button.tag == 0) {
        [button1 setBackgroundImage:[UIImage imageNamed:@"button1Image_on.png"] forState:UIControlStateNormal];
    }else if (button.tag == 1) {
        [button2 setBackgroundImage:[UIImage imageNamed:@"button2Image_on.png"] forState:UIControlStateNormal];
    }else if (button.tag == 2) {
        [button3 setBackgroundImage:[UIImage imageNamed:@"button3Image_on.png"] forState:UIControlStateNormal];
    }

}

希望这有助于...

快乐的编码...