获取屏幕图像数据

获取屏幕图像的两种方法

一、

typedef struct __IOSurface *IOSurfaceRef;

UIKIT_EXTERN CGImageRef UICreateCGImageFromIOSurface(IOSurfaceRef);

- (void)takeScreenshotAndSaveToPhotosAlbum {

    IOSurfaceRef ioSurfaceRef = (__bridge IOSurfaceRef)([UIWindow performSelector:@selector(createScreenIOSurface)]);

    CGImageRef cgImageRef = UICreateCGImageFromIOSurface(ioSurfaceRef);

    UIImage *uiImage = [UIImage imageWithCGImage:cgImageRef];

    CFRelease(ioSurfaceRef);

    CGImageRelease(cgImageRef);

    UIImageWriteToSavedPhotosAlbum(uiImage, nil, nil, nil);

}

二、

- (void)takeScreenshotAndSaveToPhotosAlbum {

    extern UIImage *_UICreateScreenUIImage();

    UIImage *screenshot = _UICreateScreenUIImage();

    UIImageWriteToSavedPhotosAlbum(screenshot, nil, nil, nil);

}