xcode中的單選按鈕的問題

Question

我在xcode中的ios中的單選按鈕有問題。我想在兩個按鈕（按鈕上的圖像）的幫助下實現此操作。如何將兩個按鈕單選按鈕？有什麼幫助？

Answer 1

UIButton *radioBtn = [UIButton buttonWithType:UIButtonTypeCustom]; 
[radioBtn setImage:[UIImage imageNamed:@"radioOff.png"] forState:UIControlStateNormal]; 
[radioBtn setImage:[UIImage imageNamed:@"radioOn.png"] forState:UIControlStateSelected]; 
[radioBtn setBackgroundColor:[UIColor clearColor]]; 
[radioBtn addTarget:self action:@selector(myfunc) forControlEvents:UIControlEventTouchUpInside]; 
[self.view addSubview:radioBtn];