用自定义图像和文本颜色更改后退button

我想在导航栏中更改我的后退button的后退button。 为此，我有这段代码。

UIImage *backButtonImage = [UIImage imageNamed:@"backbutton.png"]; UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom]; backbutton.backgroundColor = [UIColor colorWithPatternImage:backButtonImage]; backbutton.titleLabel.text = @"back"; backbutton.titleLabel.textColor= [UIColor colorWithRed:50/255.0 green:158/255.0 blue:218/255.0 alpha:1.0]; backbutton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height); UIBarButtonItem * back = [[UIBarButtonItem alloc] initWithCustomView:backbutton]; [backbutton addTarget:self action:@selector(back_Clicked) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.leftBarButtonItem = back; 

但是我仍然得到标准的后退button。 任何帮助？

Answer 1

使用波纹pipe代码您的要求..

 - (void)viewDidLoad { ///write your code UIImage *backButtonImage = [UIImage imageNamed:@"backbutton.png"]; UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom]; //[backbutton setImage:backButtonImage forState:UIControlStateNormal];//this line for set only image on button [backbutton setBackgroundImage:backButtonImage forState:UIControlStateNormal]; [backbutton setTitle:@"Back" forState:UIControlStateNormal]; backbutton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height); UIBarButtonItem * back = [[UIBarButtonItem alloc] initWithCustomView:backbutton]; [backbutton addTarget:self action:@selector(back_Clicked) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.leftBarButtonItem = back; } 

当后退button点击波纹pipe方法调用，你会去前一个viewcontroller

 -(void)back_Clicked{ [self.navigationController popViewControllerAnimated:YES]; } 

Answer 2

在将viewController推送到堆栈之前，让自己的代码自定义后退button。 并设置BackBarButtonItem，而不是LeftBarButtonItem。

 UIImage *image = [UIImage imageNamed:@"backbutton.png"]; UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom]; backbutton.bounds = CGRectMake( 0, 0, image.size.width, image.size.height ); [backbutton setImage:image forState:UIControlStateNormal]; backbutton.titleLabel.textColor = [UIColor blueColor]; UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:backbutton]; [[self navigationItem] setBackBarButtonItem: back]; [self.navigationController pushViewController:yourViewControllerObject animated:YES]; 

Answer 3

使用

  self.navigationItem.leftBarButtonItem = back; 

代替

  self.navigationController.navigationItem.leftBarButtonItem = back; 

Answer 4

 [self.navigationItem setLeftBarButtonItem:[[UIBarButtonItem alloc] initWithCustomView:[self buttonWithImage:@"backButton" heighlightImageName:@"backButton" buttonFrame:CGRectMake(2, 1, 30, 30) selectorName:@selector(buttonBackClicked:) target:self]]]; - (UIButton*)buttonWithImage:(NSString*)normalImageName heighlightImageName:(NSString*)heighlightImageName buttonFrame:(CGRect)buttonFrame selectorName:(SEL)selectorName target:(id)target { UIButton *tempButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; [tempButton setFrame:buttonFrame]; [tempButton addTarget:target action:selectorName forControlEvents:UIControlEventTouchUpInside]; [tempButton setImage:[self getImageFromResource:normalImageName] forState:UIControlStateNormal]; [tempButton setImage:[self getImageFromResource:heighlightImageName] forState:UIControlStateHighlighted]; return tempButton; } - (UIImage*)getImageFromResource:(NSString*)imageName { return [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:imageName ofType:@"png"]]; } 

Answer 5

  IButton *favButton = [[UIButton alloc] init]; [favButton setImage:[UIImage imageNamed:@"unselected.png"] forState:UIControlStateNormal]; [favButton addTarget:self action:@selector(favouriteButtonClicked:) forControlEvents:UIControlEventTouchUpInside]; UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithCustomView:favButton]; self.navigationItem.rightBarButtonItem = button; [button release]; [favButton release];