iOS-短信收件人黑条

短信收件人控件出现黑条的解决方案。

设置了

[UINavigationBar appearance]

的话，如果调用：

MFMessageComposeViewController或MFMailComposeViewController

的话，会出现收件人一栏变成黑条的情况，要在new前加上：

- (void)sendMessage:(UIViewController*)vc withNumber:(NSString*)number withText:(NSString*)text
{
// Send MSM
    BOOL canSendSMS = [MFMessageComposeViewController canSendText];
    if (canSendSMS) {
        [[UINavigationBar appearance] setBackgroundImage:nil forBarMetrics:UIBarMetricsDefault];
        MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];
        picker.messageComposeDelegate = self;
        picker.body = text;
        picker.recipients = [NSArray arrayWithObject:number];
        self.currentVC = vc;
        [vc presentModalViewController:picker animated:YES];
    }
}

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller didFinishWithResult:(MessageComposeResult)result
{
    if(result == MessageComposeResultSent){
        [AlertControlls showAlertViewWithSuccess:@"发送成功."];
    }
    else if(result == MessageComposeResultFailed){
        [AlertControlls showAlertViewWithSuccess:@"发送失败."];
    }
    [FlatTheme styleNavigationBarWithFontName:@"Avenir" andColor:MAIN_COLOR];
    [self.currentVC dismissModalViewControllerAnimated:YES];
}