self.navigationController.navigationBar.barTintColor = [UIColor blueColor];
// // 导航栏背景
// [self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"navigationImage_2.png"] forBarMetrics:UIBarMetricsDefault];
//
// self.navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
// // 导航栏透明
// [self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:@"talk_icon_03.png"] forBarMetrics:UIBarMetricsCompact];
// // 设置样式,不加这句话会有横线
// self.navigationController.navigationBar.barStyle = UIBarStyleBlackTranslucent;
// 修改title字体颜色
[self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor blackColor]}];
self.navigationController.navigationBar.barTintColor = HexRGB(0X62ccca);
// 修改返回箭头颜色样式
UIImage *backButtonImage = [[UIImage imageNamed:@"talk_icon_03.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 30, 0, 0)];
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:backButtonImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];