禁用 uibarbuttonitem 的文本颜色始终为正常状态的颜色 [英] text color of disabled uibarbuttonitem is always the color of the normal state

问题描述

我写在我的代码中

[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil]  setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor lightGrayColor], NSFontAttributeName:[UIFont boldSystemFontOfSize:16.0f]} forState:UIControlStateDisabled];

[[UIBarButtonItem appearanceWhenContainedIn:[UINavigationBar class], nil]  setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor blueColor], NSFontAttributeName:[UIFont boldSystemFontOfSize:16.0f]} forState:UIControlStateNormal];

尽管禁用了baritem，但文本颜色始终为蓝色.

but the text color is always blue despite the baritem being disabled.

我正在使用 xcode 5 和 ios7 进行编程

I'm programming in xcode 5 and ios7

推荐答案

对我来说按照 code 工作.

for me following code works.

- (void)viewDidLoad {
    [super viewDidLoad];

    UIBarButtonItem * btnTemp = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(btnDone_Click:)];
    [btnTemp setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor lightGrayColor], NSFontAttributeName:[UIFont boldSystemFontOfSize:16.0f]} forState:UIControlStateNormal];

    [btnTemp setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor blueColor], NSFontAttributeName:[UIFont systemFontOfSize:16.0f]} forState:UIControlStateDisabled];


    [self.navigationItem setRightBarButtonItem:btnTemp];

}

- (void)btnDone_Click : (id)sender {

    UIBarButtonItem * button = (UIBarButtonItem *)sender;
    [button setEnabled:FALSE];
    [self performSelector:@selector(enableButton:) withObject:sender afterDelay:2.0f];


}

- (void)enableButton : (id)sender {
    UIBarButtonItem * button = (UIBarButtonItem *)sender;
    [button setEnabled:TRUE];
}

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