objective-c - UIToolBar按钮图像

Question

我正在使用以下代码在工具栏上添加带有图像的按钮，但是它只显示颜色，没有图像显示。

 UIBarButtonItem *locationItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"butImg.png"] style:UIBarButtonItemStylePlain target:self action:@selector(butImgPressed:)];  

任何帮助将不胜感激。

Answer 1

唯一的方法:

UIButton *btnName = [UIButton buttonWithType:UIButtonTypeCustom];

[btnName setFrame:CGRectMake(0, 0, 23, 21)];

[btnName setBackgroundImage:[UIImage imageNamed:@"butImg.png"] forState:UIControlStateNormal]; 

[btnName addTarget:self action:@selector(butImgPressed:) forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem *locationItem = [[UIBarButtonItem alloc] initWithCustomView:btnName];