如何更改mfmessagecomposeviewcontroller中導航欄的顏色，同時將其呈現在ios中9

Question

 MFMessageComposeViewController *messageController = [[MFMessageComposeViewController alloc]init]; 
     [UINavigationBar appearance].barTintColor = [UIColor colorWithRed:0.0f/255.0f green:127.0f/255.0f blue:254.0f/255.0f alpha:1.0]; 
     [[messageController navigationBar] setTintColor: [UIColor whiteColor]]; 
     messageController.messageComposeDelegate = self; 
     [messageController setBody:message]; 
     [messageController navigationBar].translucent =NO;            
     [messageController.navigationBar setBarTintColor:[UIColor colorWithRed:0.0f/255.0f green:127.0f/255.0f blue:254.0f/255.0f alpha:1.0]]; 
     // Present message view controller on screen 
     [self presentViewController:messageController animated:YES completion:^{ 
     [messageController navigationBar].translucent = NO; 
     }]; 

我一直在使用這段代碼。請讓我知道是否有遺漏。

Answer 1

你只需要添加兩行來改變導航欄的顏色。

對於MFMailComposeViewController。

MFMailComposeViewController *mc = [[MFMailComposeViewController alloc] init]; 

[mc.navigationBar setTintColor:[UIColor whiteColor]];//cancel button will be of white color. 
[mc.navigationBar setBarTintColor:[UIColor blackColor]];//bar color will be black. 

if (mc != nil) 
     { 
      mc.mailComposeDelegate = self; 
      [mc setSubject:emailTitle]; 
      [mc setMessageBody:bodyText isHTML:YES]; 
      [mc setToRecipients:toRecipents]; 

      [self presentViewController:mc animated:YES completion:nil]; 

     } 

對於MFMessageComposeViewController

用於改變導航條顏色創建如下面的一種方法。

- (void)setNavBarColor:(UIColor *)navBarColor titleColor:(UIColor *)titleColor { 
    [[UINavigationBar appearance] setBarTintColor:navBarColor]; 
    [[UINavigationBar appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: 
                  [UIFont fontWithName:@"Futura-Medium" size:17.0f], 
                  UITextAttributeFont, 
                  titleColor, 
                  UITextAttributeTextColor, 
                  nil]]; 
} 

並且在初始化MFMessageComposeViewController之前寫下這個方法。 （這是非常重要的，否則它將無法工作）在IOS 9

此代碼工作對我來說也許它會幫助你。