逐帧动画 [英] frame by frame animation

问题描述

我想知道这个动画代码的替代品..

i wanna knw an alternate to this animation code..

    -(void)movetree{
    //[tree1 release];
    treeMove = YES;
    tree1.animationImages = [NSArray arrayWithObjects: 
        [UIImage imageNamed:@"moving trees1.png"],
        [UIImage imageNamed:@"moving trees2.png"],
        [UIImage imageNamed:@"moving trees3.png"],
        [UIImage imageNamed:@"moving trees4.png"],
        [UIImage imageNamed:@"moving trees5.png"],
        [UIImage imageNamed:@"moving trees6.png"],
        [UIImage imageNamed:@"moving trees7.png"],
        [UIImage imageNamed:@"moving trees8.png"],
        [UIImage imageNamed:@"moving trees9.png"],
        [UIImage imageNamed:@"moving trees10.png"],
        [UIImage imageNamed:@"moving trees11.png"],
        [UIImage imageNamed:@"moving trees12.png"],
        [UIImage imageNamed:@"moving trees13.png"],
        [UIImage imageNamed:@"moving trees14.png"],
        [UIImage imageNamed:@"moving trees15.png"],
        [UIImage imageNamed:@"moving trees16.png"],
        [UIImage imageNamed:@"moving trees17.png"],
        [UIImage imageNamed:@"moving trees18.png"],
        [UIImage imageNamed:@"moving trees19.png"],
        [UIImage imageNamed:@"moving trees20.png"],
        [UIImage imageNamed:@"moving trees21.png"],
        [UIImage imageNamed:@"moving trees22.png"],
        [UIImage imageNamed:@"moving trees23.png"],
        [UIImage imageNamed:@"moving trees24.png"],
        [UIImage imageNamed:@"moving trees25.png"],
        [UIImage imageNamed:@"moving trees26.png"],
        [UIImage imageNamed:@"moving trees27.png"],
        [UIImage imageNamed:@"moving trees28.png"],
        [UIImage imageNamed:@"moving trees29.png"],
        [UIImage imageNamed:@"moving trees30.png"],
        [UIImage imageNamed:@"moving trees31.png"],
        [UIImage imageNamed:@"moving trees32.png"],
        [UIImage imageNamed:@"moving trees33.png"],
        [UIImage imageNamed:@"moving trees34.png"],
        [UIImage imageNamed:@"moving trees35.png"],
        [UIImage imageNamed:@"moving trees36.png"],
        [UIImage imageNamed:@"moving trees37.png"],
        [UIImage imageNamed:@"moving trees38.png"],
        [UIImage imageNamed:@"moving trees39.png"],
        [UIImage imageNamed:@"moving trees40.png"],
        [UIImage imageNamed:@"moving trees41.png"],
        [UIImage imageNamed:@"moving trees42.png"],
        [UIImage imageNamed:@"moving trees43.png"],
        [UIImage imageNamed:@"moving trees44.png"],
        [UIImage imageNamed:@"moving trees45.png"],
        [UIImage imageNamed:@"moving trees46.png"],
        [UIImage imageNamed:@"moving trees47.png"],
        [UIImage imageNamed:@"moving trees48.png"],
        [UIImage imageNamed:@"moving trees49.png"],
        [UIImage imageNamed:@"moving trees50.png"],
        [UIImage imageNamed:@"moving trees51.png"],
        [UIImage imageNamed:@"moving trees52.png"],
        [UIImage imageNamed:@"moving trees53.png"],
        [UIImage imageNamed:@"moving trees54.png"],
        [UIImage imageNamed:@"moving trees55.png"],
        [UIImage imageNamed:@"moving trees56.png"],
        [UIImage imageNamed:@"moving trees57.png"],
        [UIImage imageNamed:@"moving trees58.png"],
        [UIImage imageNamed:@"moving trees59.png"],
        [UIImage imageNamed:@"moving trees60.png"],nil];

 // all frames will execute in 1.75 seconds
 tree1.animationDuration =1.75;
 // repeat the annimation forever
 tree1.animationRepeatCount = 0;
 // start animating

 [tree1 startAnimating];
 // add the animation view to the main window 
 //[bgview addSubview:campFireView];

 [tree1 release]; 

 player.numberOfLoops = -1;
 [player play];


 }

还有其他方法可以显示动画用框架？这种方法似乎更重，而且崩溃很多..

Is there any other way to show animation using frames?? this method seems to be heavier and it crashes alot..

推荐答案

尝试使用 Moses DeJong的PNG动画方法。从他的话来说：

Try using PNG Animation method by Moses DeJong. From his words:

这个例子实现了一个动画
定向视图控制器，只需
等待读取PNG图像
帧的数据，直到需要它为止。这个类
运行大约半兆内存
而不是
来分配许多兆字节，而b $ ba第二代iPhone的CPU利用率约为5-10％。

This example implements an animation oriented view controller that simply waits to read the PNG image data for a frame until it is needed. Instead of alllocating many megabytes, this class run in about a half a meg of memory with about a 5-10% CPU utilization on a 2nd gen iPhone.

我相信它基本上使用UIImageView来缓存AVAudioPlayer。

I believe it basically uses UIImageView to cache up AVAudioPlayer.

这篇关于逐帧动画的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！