ViewController上的UIBar按钮

Question

我正在尝试在我的ViewController上为一个i-phone应用初始化一个barbutton项目。

实施中：

-(void)viewDidLoad
{
 UIButton *TakePhoto = [UIButton buttonWithType:UIButtonTypeCustom];

[TakePhoto setTitle:@"Take Photo" forState:UIControlStateNormal];
TakePhoto.titleLabel.font = [UIFont fontWithName:@"Helvetica-Bold" size:12.0f];
[TakePhoto.layer setCornerRadius:4.0f];
[TakePhoto.layer setBorderWidth:1.0f];
[TakePhoto.layer setBorderColor: [[UIColor redColor] CGColor]];
TakePhoto.frame=CGRectMake(200, 100.0, 60.0, 30.0);
[TakePhoto addTarget:self action:@selector(takePicture) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem* barbutton= [[UIBarButtonItem alloc] initWithCustomView:TakePhoto];
}

Answer 1

您必须将此按钮设置为要显示的位置，例如

self.navigationItem.leftBarButtonItem = barbutton