//導(dǎo)航欄按鈕設(shè)置

//導(dǎo)航欄背景色全局設(shè)置（寫在appdelegate里）

[[UINavigationBar appearance] setBarTintColor:kMainColorOfApp];

//按鈕標(biāo)題顏色設(shè)置

[self.navigationController.navigationBar setTintColor:[UIColor blackColor]];

//按鈕標(biāo)題設(shè)置

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"取消" style:UIBarButtonItemStylePlain target:self action:@selector(onClickCancel)];

self.navigationItem.rightBarButtonItem =? [[UIBarButtonItem alloc] initWithTitle:@"保存" style:UIBarButtonItemStylePlain target:self action:@selector(onClickSave)];

self.navigationItem.title = @"服務(wù)地區(qū)";

修改導(dǎo)航條背景顏色

self.navigationController.navigationBar.barTintColor = [UIColor colorWithHexString:@"#2295f2"];

設(shè)置了導(dǎo)航條背景顏色，會(huì)導(dǎo)致按鈕標(biāo)題顏色改變，通過以下方法修改

self.navigationController.navigationBar.tintColor = [UIColor whiteColor];

自定義的按鈕圖片距屏幕邊緣太遠(yuǎn)，可通過以下代碼修改

系統(tǒng)默認(rèn)的rightBarButtonItem邊距

self.navigationItem.leftBarButtonItem.imageInsets = UIEdgeInsetsMake(0,-20,0,0);

self.navigationItem.rightBarButtonItem.imageInsets = UIEdgeInsetsMake(0,-10,0,10);