来自 UIButton 的自定义 UIBarButtonItem 的标题未显示答案

【问题标题】：Title of a Custom UIBarButtonItem from a UIButton not showing来自 UIButton 的自定义 UIBarButtonItem 的标题未显示
【发布时间】：2014-09-01 10:24:22
【问题描述】：

我从UIButton 自定义了UIBarButtonItem。自定义栏按钮可见，动作有效，大小正确，可以看到背景颜色；但是无法看到手动设置的标题。也许背景覆盖在文本上？我不确定，帮忙？

在viewDidLoad:

UIButton *resetButton = [UIButton buttonWithType:UIButtonTypeCustom];
resetButton.frame = CGRectMake(0, 0, 65, 30);
[resetButton addTarget:self action:@selector(speakPhrase:) forControlEvents:UIControlEventTouchUpInside];
resetButton.titleLabel.font = [UIFont fontWithName:@"ProximaNova-Bold" size:19];
resetButton.titleLabel.text = @"RESET";
resetButton.titleLabel.textColor = [UIColor whiteColor];
resetButton.backgroundColor = [UIColor redColor];
resetButton.showsTouchWhenHighlighted = YES;

UIBarButtonItem *resetBarBTN = [[UIBarButtonItem alloc] initWithCustomView:resetButton];

self.navigationItem.rightBarButtonItem = resetBarBTN;

【问题讨论】：

标签： ios uibutton uibarbuttonitem

【解决方案1】：

使用 setTitle:forState 设置按钮标题。例如

[resetButton setTitle:@"text" forState:UIControlStateNormal]

【讨论】：

【解决方案2】：

您应该为特定控制状态使用setTitle:forState:的按钮设置标题，用下面的代码替换您的代码

UIButton *resetButton = [UIButton buttonWithType:UIButtonTypeCustom];
resetButton.frame = CGRectMake(0, 0, 65, 30);
[resetButton addTarget:self action:@selector(speakPhrase:) forControlEvents:UIControlEventTouchUpInside];
resetButton.titleLabel.font = [UIFont fontWithName:@"ProximaNova-Bold" size:19];

[resetButton setTitle:@"RESET" forState:UIControlStateNormal]; //change this line in your code

resetButton.titleLabel.textColor = [UIColor whiteColor];
resetButton.backgroundColor = [UIColor redColor];
resetButton.showsTouchWhenHighlighted = YES;

UIBarButtonItem *resetBarBTN = [[UIBarButtonItem alloc] initWithCustomView:resetButton];

self.navigationItem.rightBarButtonItem = resetBarBTN;

【讨论】：