iphone – 我应该如何在iOS中动画200多张图片？

我有超过200张图像,我想在大约10秒的空间内制作动画.我尝试通过将图像加载到数组中然后调用startAnimating方法来使用animation Images.这在模拟器中运行正常但是撞毁了iPad.

我曾尝试每隔1/25秒调用一次NStimer,并在每次定时器触发时更改图像.这比以前的方法表现更好,它在模拟器中运行良好,但在iPad的(滞后)动画结束时也崩溃了.

有人可以帮助我,告诉我解决这个问题的理想方法吗？谢谢.

原始代码：

- (void) humptyFallingAnim {

    NSString *filename;
    if (humptyImageCounter < 285) {
        filename = [NSString stringWithFormat:@"Humpty Animation HD1.2 png sequence/humpty_HD1.2_%d.png",humptyImageCounter];
            UIImage *someImage = [UIImage imageNamed:filename];
            humptyFalling.image = someImage;
            NSLog(@"loaded image: %d",humptyImageCounter);
        humptyImageCounter++;
    } else {
        NSLog(@"Timer invalidated");
        [humptyTimer invalidate];
        humptyTimer = nil;
    }

}

编辑：一些不适合我的新代码

NSString *filename;
    if (humptyImageCounter < 285) {
        filename = [NSString stringWithFormat:@"Humpty Animation HD1.2 png sequence/humpty_HD1.2_%d.png",humptyImageCounter];
        @autoreleasepool {
            UIImage *someImage = [UIImage imageWithContentsOfFile:filename];
            humptyFalling.image = someImage;
            NSLog(@"loaded image: %d",humptyImageCounter);
        }
        humptyImageCounter++;
    } else {
        NSLog(@"Timer invalidated");
        [humptyTimer invalidate];
        humptyTimer = nil;
    }

编辑2：

-(void) motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {
    NSLog(@"You shook it!");
    [self.view bringSubviewToFront:imgSnail];
    if (deviceHasBeenShaken == 0) {
        deviceHasBeenShaken = 1;
    }
    humptyTimer = [NSTimer scheduledTimerWithTimeInterval:(1/25) target:self selector:@selector(humptyFallingAnim) userInfo:nil repeats:YES];
    [self moveHumptyPosition];

}