iOS中将UIScrollView转换保存成PDF文件数据

IOS中将UIScrollView转换保存成PDF文件数据

下面方法 返回一个NSData类型 之后     [pdfData writeToFile:documentDirectoryFilename atomically:YES]; 就ok了 代码不贴了

- (NSMutableData*)createPDFfromUIScrollView:(UIScrollView*)scrollView{
    
    NSMutableData *pdfData = [NSMutableData data];
    
    UIGraphicsBeginPDFContextToData(pdfData, (CGRect){0,0, scrollView.contentSize}, nil);
    
    UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, scrollView.contentSize.width,scrollView.contentSize.height), nil);
    
    CGContextRef pdfContext = UIGraphicsGetCurrentContext();
    
    CGRect origSize = scrollView.frame;
    
    CGRect newSize = origSize;
    
    newSize.size = scrollView.contentSize;
    
    [scrollView setFrame:newSize];
    
    [scrollView.layer renderInContext:pdfContext];
    
    [scrollView setFrame:origSize];

    UIGraphicsEndPDFContext();
    
    return pdfData;
}

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