Question

尝试以编程方式在Xcode 6和iOS 8.1中的Objective-C视图控制器中创建圆角矩形按钮，仅生成非圆角矩形按钮。正在使用UIButton buttonWithType：方法。

为什么？

//
//  ViewController.m
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)loadView // Called the first time the view property is accessed.
{
    CGRect viewRect = [[UIScreen mainScreen] bounds];
    UIView *view = [[UIView alloc] initWithFrame:viewRect];
    self.view = view;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Set the view's background color.
    self.view.backgroundColor = [UIColor colorWithRed:0.462 green:0.999 blue:0.999 alpha:1.0];

    // Create a button.
    UIButton *btn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
    // Place and size the button on the screen.
    btn.frame = CGRectMake(100, 100, 90, 44);
    // Set the button's background color.
    btn.backgroundColor = [UIColor yellowColor];
    // Set the button's normal title.
    [btn setTitle:@"Test Button" forState:UIControlStateNormal];
    // Add the button as a subview.
    [self.view addSubview:btn];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end

Answer 1

添加此行并尝试：

btn.layer.cornerRadius = 5;

Xcode 6圆角矩形按钮问题

1 个答案: