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我需要导航栏左侧的两个按钮。我已经想出了如何做到这一点的唯一方法是首先将它们放入UIToolbar,然后将leftBarButtonItem设置为该位置。如果在工具栏中点击,UIBarButtonItem不会突出显示?
如果我这样做,它的工作原理是正常的(你可以看到它突出挖掘时):
UIBarButtonItem* myBtn = [[UIBarButtonItem alloc] initWithTitle:@"Button" style:UIBarButtonItemStyleBordered target:self action:@selector(doSomething:)];
self.navigationItem.leftBarButtonItem = myBtn;
但是,如果我不喜欢这样,按钮动作仍然发生,但没有亮点(无视觉反馈,您正在点击该按钮):
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];
UIBarButtonItem* myBtn = [[UIBarButtonItem alloc] initWithTitle:@"Button" style:UIBarButtonItemStyleBordered target:self action:@selector(doSomething:)];
UIBarButtonItem* myBtn2 = [[UIBarButtonItem alloc] initWithTitle:@"Button2" style:UIBarButtonItemStyleBordered target:self action:@selector(doSomethingElse:)];
[buttons addObject:myBtn];
[buttons addObject:myBtn2];
UIToolbar* toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 133, 44)];
[toolbar setItems:buttons animated:NO];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolbar];
任何想法为什么这会导致按钮在触摸时不突出显示?