iOS 之点击按钮改变状态的图片

  

.h  文件中

@property (strong, nonatomic) IBOutletUIButton *publishBtton;

@property (strong, nonatomic) IBOutletUIButton *timeLineButton;

@property (strong, nonatomic) IBOutletUIButton *chatButton;

@property (strong, nonatomic) IBOutletUIButton *topicButton;

.m 文件中

   

- (void)viewDidLoad

{

    [superviewDidLoad];

    

    _buttonArray=@[_publishBtton,_timeLineButton,_chatButton,_topicButton];

    

    [_publishBttonsetImage:[UIImageimageNamed:@"publish"] forState:UIControlStateNormal];

    [_timeLineButtonsetImage:[UIImageimageNamed:@"timeLineAfter"] forState:UIControlStateNormal];

    [_chatButtonsetImage:[UIImageimageNamed:@"chatBefore"] forState:UIControlStateNormal];

    [_chatButtonsetImage:[UIImageimageNamed:@"chatAfter"] forState:UIControlStateSelected];

    [_topicButtonsetImage:[UIImageimageNamed:@"topicBefore"] forState:UIControlStateNormal];

    [_topicButtonsetImage:[UIImageimageNamed:@"topicAfter"] forState:UIControlStateSelected];

    

}

-(void)changeButtonState:(UIButton *)button buttons:(NSArray *)buttonArray

{

    for (UIButton* b in buttonArray)

    {

        b.selected=NO;

    }

       button.selected=YES;

}

//点击按钮事件

- (IBAction)changeView:(UIButton *)sender

{

    

    [selfchangeButtonState:sender buttons:_buttonArray];

    switch (sender.tag) {

        case 400:

        {

             [_timeLineButtonsetImage:[UIImageimageNamed:@"timeLineBefore"] forState:UIControlStateNormal];

            break;

        }

        case401:

        {

            [_timeLineButtonsetImage:[UIImageimageNamed:@"timeLineAfter"] forState:UIControlStateSelected];

            break;

        }

        case402:

        {

          [_timeLineButtonsetImage:[UIImageimageNamed:@"timeLineBefore"] forState:UIControlStateNormal];

            break;

        }

        case 403:

        {

           [_timeLineButtonsetImage:[UIImageimageNamed:@"timeLineBefore"] forState:UIControlStateNormal];     

            break;

        }

        default:

            break;

    }

    

}