iOS8之後可用的一些小知識點

// 修改title字型顔色

    [self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName:[UIColor blackColor]}];

    self.navigationController.navigationBar.barTintColor = HexRGB(0X62ccca);

    // 修改傳回箭頭顔色樣式

    UIImage *backButtonImage = [[UIImage imageNamed:@"talk_icon_03.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 30, 0, 0)];

    [[UIBarButtonItem appearance] setBackButtonBackgroundImage:backButtonImage forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];

//    取消導航欄對視圖的影響

 1   self.navigationController.navigationBar.translucent = NO; 設定半透明狀态

 2   self.edgesForExtendedLayout = UIRectEdgeNone;