ios - 我如何应用 CICrystallize 过滤器 iOS 7？

Question

我正在使用 Xcode 5 和 iOS7 开发照片应用。问题是当我应用 CICrystallize 过滤器并运行项目时，模拟器的屏幕变为空白。谁能帮帮我？该方法的实现是:

- (IBAction)cristalizar:(id)sender {
    CIImage *imagen = [[CIImage alloc]initWithCGImage:self.imagenView.image.CGImage];

    CIFilter *cristalizar = [CIFilter filterWithName:@"CICrystallize"];
    [cristalizar setDefaults];
    CIVector *vector = [CIVector vectorWithX:150 Y:150];
    [cristalizar setValue:imagen forKey:kCIInputImageKey];
    [cristalizar setValue:@20.00f forKey:kCIInputRadiusKey];
    [cristalizar setValue:vector forKey:kCIInputCenterKey];

    CIImage *resultado = [cristalizar valueForKey:kCIOutputImageKey];

    CIContext *contexto = [CIContext contextWithOptions:nil];
    CGImageRef cgImagen = [contexto createCGImage:resultado fromRect:[resultado extent]];
    self.imagenView.image = [UIImage imageWithCGImage:cgImagen];
}

Answer 1

CICrystallize在 iOS 上不可用。

Availability

Available in OS X v10.4 and later.