我在我的 .xib 文件中拖动了 3 个按钮(分别为 btn1、btn2、btn3),最初我为它们提供了默认图像,first.png
i draged 3 button in my .xib file (btn1,btn2,btn3 respectively) and initially i given default image to them, first.png
现在当用户点击 btn1 时,btn1 的图像应该从 first.png 变为 second.png..
now when user clicks on btn1, image of btn1 should change from first.png to second.png..
当用户在 btn2 上选择时,btn2 的图像应该从 first.png 变为 second.png,并且 btn1 的图像也会再次变为默认的 first.png,以便用户知道他点击了第二个按钮.
and when user selects on btn2, image of btn2 should change from first.png to second.png, and also change image of btn1 to default again first.png, so that user came to know he has clicked 2nd button.
我应该怎么做?
提前致谢!
你要设置按钮动作方法代码
You have to set button action method code
-(IBAction)btnClked:(id)sender
{
[btn1 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];
[btn2 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];
[btn3 setImage:[UIImage imageNamed:@"first.png"] forState:UIControlStateNormal];
UIButton *btn=(UIButton *)sender;
[btn setImage:[UIImage imageNamed:@"second.png"] forState:UIControlStateNormal];
}
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