多个按钮，点击单个按钮更改被点击按钮图片的方法

来源：互联网发布：python 3.6.0下载安装编辑：程序博客网时间：2024/06/15 23:33

定义全局中间变量 button *tmpBtn

NSArray *btnTitle =@[@"自动模式",@"定时模式",@"手动模式"];

for (int i =0; i < btnTitle.count; i++) {

UIButton *workModelBtn = [UIButtonbuttonWithType:UIButtonTypeCustom];

workModelBtn.frame = CGRectMake(70, 200+i*80, 220,35);

[workModelBtn setTitle:btnTitle[i] forState:UIControlStateNormal];

workModelBtn.titleLabel.font = [UIFontsystemFontOfSize:25];

workModelBtn.tag = 20 +i;

[workModelBtn setImage:[UIImageimageNamed:@"Knob.png"]forState:UIControlStateNormal];

[workModelBtn setImage:[UIImageimageNamed:@"圈.png"]forState:UIControlStateSelected];

[workModelBtn setTitleColor:[UIColorblackColor] forState:UIControlStateNormal];

[workModelBtn addTarget:selfaction:@selector(onClickchange:)forControlEvents:UIControlEventTouchUpInside];

[self.viewaddSubview:workModelBtn];

}

if (tmpBtn ==nil){

sender.selected = YES;

tmpBtn = sender;

}

else if (tmpBtn !=nil &&tmpBtn == sender){

sender.selected = YES;

}

else if (tmpBtn!= sender &&tmpBtn!=nil){

tmpBtn.selected =NO;

sender.selected = YES;

tmpBtn = sender;

}

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