ios 360度旋转效果demo ios 360度旋转效果demo

demo功能：用UIimageView实现360度旋转效果。

demo说明：iPhone6.1 测试成功。主要代码在：FVImageSequence.m中。在touchesMoved事件中，通过替换UIimageView的image来产生旋转效果。

demo截屏：

demo主要代码：

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-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
    [super touchesMoved:touches withEvent:event];

    UITouch *touch = [[event allTouches] anyObject];
    CGPoint touchLocation = [touch locationInView:self];

    int location = touchLocation.x;
//根据移动偏移量，判断旋转的方向。

    if(location < previous)
        current += increment;
    else
        current -= increment;

    previous = location;

//图片临界点限制，在demo中的image文件夹下有所有图片，是从不同角度拍摄的，将这些图片依次显示就可以实现360的旋转效果
    if(current > numberOfImages)
        current = 0;
    if(current < 0)
        current = numberOfImages;

    NSString *path = [NSString stringWithFormat:@"%@%d", prefix, current];
    NSLog(@"%@", path);

    path = [[NSBundle mainBundle] pathForResource:path ofType:extension];


    UIImage *img = [[UIImage alloc] initWithContentsOfFile:path];

//设置UIimageView的image为新的image，实现360度旋转效果
    [self setImage:img];

    [img release];

补充：移动开发 , IOS ,