iOS 之點擊按鈕改變狀態的圖片

(strong,nonatomic) IBOutlet UIButton *publishBtton;

(strong,nonatomic) IBOutlet UIButton *timeLineButton;

(strong,nonatomic) IBOutlet UIButton *chatButton;

(strong,nonatomic) IBOutlet UIButton *topicButton;

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* bin buttonArray)

selected=NO;

selected=YES;

//點擊按鈕事件

IBAction)changeView:(UIButton *)sender

    [selfchangeButtonState:sender buttons:_buttonArray];

switch (sender.tag) {

case 400:

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

break;

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

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

break;

case 403:

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

break;

default:

break;