[摘要]本文是對iOS中UIKit——UIButton設置邊框的講解，對學習IOS蘋果軟件開發有所幫助,與大家分享。

UIButton *testButton = [UIButton buttonWithType:UIButtonTypeSystem];

[testButton setFrame:CGRectMake(self.view.frame.size.width/2, self.view.frame.size.height/2, 100, 100)];

[testButton setTitle:@"獲取屏幕尺寸" forState:UIControlStateNormal];

[testButton.layer setMasksToBounds:YES];//設置按鈕的圓角半徑不會被遮擋

[testButton.layer setCornerRadius:10];

[testButton.layer setBorderWidth:2];//設置邊界的寬度

//設置按鈕的邊界顏色

CGColorSpaceRef colorSpaceRef = CGColorSpaceCreateDeviceRGB();

CGColorRef color = CGColorCreate(colorSpaceRef, (CGFloat[]){1,0,0,1});

[testButton.layer setBorderColor:color];

[testButton addTarget:self action:@selector(touch) forControlEvents:UIControlEventTouchUpInside];

[self.view addSubview:testButton];

　　實現效果: