UIImage翻轉圖像方向

Question

對於某些UIImageView animationImages，我希望創建2個數組-每個方向一個。 我有可以加載到其中一個方向的png文件，並且希望翻轉每個圖像並將其添加到第二個方向數組。

我試圖做這樣的事情：

    _movingLeftImages = [NSMutableArray array];
    _movingRightImages = [NSMutableArray array];
    int imagesCounter = 0;
    while (imagesCounter <= 8)
    {
        NSString* imageName = [NSString stringWithFormat:@"movingImg-%i", imagesCounter];

        UIImage* moveLeftImage = [UIImage imageNamed:imageName];
        [_movingLeftImages addObject:moveLeftImage];

        UIImage* moveRightImage = [UIImage imageWithCGImage:moveLeftImage.CGImage scale:moveLeftImage.scale orientation:UIImageOrientationUpMirrored];
        [_movingRightImages addObject:moveRightImage];

        imagesCounter++;
    }

在相關事件發生時，我將UIImageView animationImages與相關數組一起加載； 像這樣：

if ( /*should move LEFT event*/ )
    {
        movingImageView.animationImages = [NSArray arrayWithArray:_movingLeftImages];
    }
    if ( /*should move RIGHT event*/ )
    {
        movingImageView.animationImages = [NSArray arrayWithArray:_movingRightImages];
    }

圖像不翻轉。 他們留在原地。

知道如何處理嗎？

Answer 1

使用此代碼對圖像進行動畫處理

UIImageView * animatedImageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 200,200)];

  NSArray *imageNames = @[@"bird1.png", @"bird2.png"];
  animTime =.0;
 [animatedImageView setAnimationImages:imageNames] ;
 animatedImageView.animationDuration =  animTime;
 animatedImageView.animationRepeatCount = 1;
[self.view addSubview: animatedImageView];
[animatedImageView startAnimating];