ios - 如何创建标签文本 slider

Question

我在我的应用程序中创建了 slider 。如何在我的代码中添加循环。因为我的标签文本只滑动一次，但我想在标签上标记文本重复(循环)。怎么可能？

我的标签 slider 代码

将globalCounter设为全局变量

globalCounter=0;
if(nameArray.count>0){

[self changeLable];

}

然后

-(void)changeLable{

if(!(globalCounter<nameArray.count)){
    return;
}


NSLog(@"globalCounter %d",globalCounter);

[UIView animateWithDuration:1
                      delay:0.5
                    options: UIViewAnimationOptionTransitionCrossDissolve
                 animations:^{


                 }
                 completion:^(BOOL finished) {

                     [lblTitle setText:[nameArray objectAtIndex:globalCounter]];
                     globalCounter++;

                     [self performSelector:@selector(changeLable) withObject:nil afterDelay:1];

                 }];


}

编辑

-(void)changeLable{

if(!(globalCounter<nameArray.count)){ 
 globalCounter=0; 
  }


NSLog(@"globalCounter %d",globalCounter);

[UIView animateWithDuration:1
                      delay:0.5
                    options: UIViewAnimationOptionTransitionCrossDissolve
                 animations:^{


                 }
                 completion:^(BOOL finished) {

                     [lblTitle setText:[nameArray objectAtIndex:globalCounter]];
                     globalCounter++;

                     [self performSelector:@selector(changeLable) withObject:nil afterDelay:1];

                 }];


 }

Answer 1

喜欢

globalCounter=0;
if(des.count>0){
     [_label setText:[des objectAtIndex:globalCounter]];
    [self changeLable];

}

并调用类似的方法

-(void)changeLable{

if(globalCounter < des.count){



[UIView animateWithDuration:0.
                      delay:0.5
                    options: UIViewAnimationOptionTransitionCrossDissolve
                 animations:^{


                 }
                 completion:^(BOOL finished) {

                     if(globalCounter>=des.count){
                         globalCounter=0;//set counter to zero after it exceeds array count to repeat text change round repeated
                     }else
                     {
                          [_label setText:[des objectAtIndex:globalCounter]];
                         globalCounter++;
                         [self performSelector:@selector(changeLable) withObject:nil afterDelay:1];
                     }




                 }];
}


}