动画视图

Question

我正在为我的superview添加一个子视图。它应该在屏幕上显示动画。

代码：

HomeListingView=[[UIView alloc]initWithFrame:CGRectMake(10,10,300 , 300+190)];   
[HomeListingView setBackgroundColor:[UIColor whiteColor]];
[UIView animateWithDuration:0.1 delay:0.5 options:UIViewAnimationOptionCurveEaseInOut animations:^{

    [scrollSell addSubview:HomeListingView]; //scrollsell is the object of UIScrollView

}completion:^(BOOL finished){

    NSLog(@"Done");

}];

我在这里做错了什么。或者还有另一种动画制作方法吗？

Answer 1

假设您要将HomeListingView移到屏幕上，请将代码更改为：

    HomeListingView=[[UIView alloc]initWithFrame:CGRectMake(-300, -300 + 190, 300 , 300+190)];  // Create view with frame initially off screen
    [HomeListingView setBackgroundColor:[UIColor whiteColor]];
    [scrollSell addSubview:HomeListingView]; //scrollsell is the object of UIScrollView

    [UIView animateWithDuration:0.1 delay:0.5 options:UIViewAnimationOptionCurveEaseInOut animations:^{

       HomeListingView.frame = CGRectMake(10,10,300 , 300+190)];  // Change the frame to move it on screen

    }completion:^(BOOL finished){
        NSLog(@"Done");
     }];

Answer 2

这是方法：

    HomeListingView =[[UIView alloc]init];
    [HomeListingView setBackgroundColor:[UIColor redColor]];
    [self.sclCeel addSubview:HomeListingView]; //scrollsell is the object of UIScrollView

    [UIView animateWithDuration:0.1 delay:0.5 options:UIViewAnimationOptionCurveEaseInOut animations:^{
        HomeListingView.frame  = CGRectMake(10,10,300 , 300+190); // Set your view frame here.
    }completion:^(BOOL finished){
        NSLog(@"Done");
    }];

Answer 3

在动画块我们需要根据动画效果改变帧，你做错了，请看它

UIView * view = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];
    [self.view addSubview:view];
    [view setBackgroundColor:[UIColor redColor]];


    [UIView animateWithDuration:1.0
                     animations:^{
                         view.frame = CGRectMake(view.frame.origin.x-25, view.frame.origin.y-25, view.frame.size.width+50, view.frame.size.height+50);
                     } completion:^(BOOL finished) {

                     }];