objective-c - UIButton不显示文字设置宽度[UIButton setTitle]

Question

对于以下代码(其中 UIButton 未连接到 IBOutlet):

UIImage *defaultButton = [UIImage imageNamed:@"StandardButton.png"];
PlayButton = [[UIButton alloc] initWithFrame:CGRectMake(250, 50, 220, 50)];
[PlayButton setImage:defaultButton forState:UIControlStateNormal];
[PlayButton setTitle:@"PlayButton" forState:UIControlStateNormal];
[PlayButton addTarget:self action:@selector(StoryModeReleased:)forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:PlayButton];

PlayButton 指针在 .h 文件中声明。当我使用此代码时，按钮文本不会出现，但按钮会显示图像。如何让文字显示出来？

Answer 1

试试这个:

PlayButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
UIImage *defaultButton = [UIImage imageNamed:@"StandardButton.png"];
PlayButton.frame = CGRectMake(250, 50, 220, 50)];
[PlayButton setImage:defaultButton forState:UIControlStateNormal];
[PlayButton setTitle:@"PlayButton" forState:UIControlStateNormal];
[PlayButton addTarget:self action:@selector(StoryModeReleased:)forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:PlayButton];

我想你忘了声明按钮的类型