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-(void)setBarWithTitle:(NSString *)title{     self.view.backgroundColor=[UIColor whiteColor];     self.title=title;     self.navigationController.navigationBar.titleTextAttributes=@{NSForegroundColorAttributeName : [UIColor whiteColor]};          UIImage *image=[[UIImage imageNamed:@"Return"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];     UIBarButtonItem *leftItem=[[UIBarButtonItem alloc] initWithImage:image style:UIBarButtonItemStylePlain target:self action:@selector(back)];     [leftItem setImage:image];     self.navigationItem.leftBarButtonItem=leftItem; } -(void)setBackItem{     UIImage *image=[[UIImage imageNamed:@"Return"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];     UIBarButtonItem *leftItem=[[UIBarButtonItem alloc] initWithImage:image style:UIBarButtonItemStylePlain target:self action:@selector(back)];     [leftItem setImage:image];     self.navigationItem.leftBarButtonItem=leftItem; } -(void)back{     [self.navigationController popViewControllerAnimated:YES]; }

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