如何在界面中使用自定義UIBarButtonItem都使用自定義UINavigationBar

Question

如何在界面中使用自定義UIBarButtonItem都使用自定義UINavigationBar

沒有在每個接口中再次寫入。

是否有統一的統一設置方法？

UIImage image = [UIImage imageNamed:imagePath];
UIButton button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0.0, 0.0, image.size.width, image.size.height);
[button setImage:image forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:highLightImagePath] forState:UIControlStateHighlighted];
[button addTarget:self action:selector forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];

很多接口backBarButtonItem需要自定義，代碼是一樣的，我不想寫N次

Answer 1

您可以將其添加到單例全局變量文件中，例如

GlobalVariable.h

+(UIBarButtonItem*)customButton;

GlobalVariable.m

+(UIBarButtonItem*)customButton{
    UIImage *image = [UIImage imageNamed:imagePath];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(0, 0, image.size.width, image.size.height);
    [button setImage:image forState:UIControlStateNormal];
    [button setImage:[UIImage imageNamed:highLightImagePath] forState:UIControlStateHighlighted];
    [button addTarget:self action:selector forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem* btn = [[UIBarButtonItem alloc] initWithCustomView:button];
    return btn;
}

然后，在您希望按鈕出現的視圖中導入GlobalVariable.h並調用

self.navigationItem.leftBarButtonItem = [GlobalVariable customButton];

如果還需要其他變量，則可以在此處保留GlobalVariable。