ios - 导出文本或 pdf

Question

在我的应用程序中，用户可以将一些信息添加到他的列表中，最后他想通过电子邮件将该列表发送给其他人。我只是想知道如何导出该列表？是否可以将其导出为 pdf 或 txt 文件？！

Answer 1

如果您正在搜索 iOS5，请检查此链接。

http://www.raywenderlich.com/6581/how-to-create-a-pdf-with-quartz-2d-in-ios-5-tutorial-part-1

编辑：UI elements像这样使用：

 [yourView.layer renderInContext:UIGraphicsGetCurrentContext()]

Answer 2

好的，我使用了这段代码，不幸的是我丢失了找到答案的页面，很抱歉没有引用它。这是神奇的代码：

-(void)createPDFfromUIView:(UIView*)aView saveToDocumentsWithFileName:(NSString*)aFilename
{
    // Creates a mutable data object for updating with binary data, like a byte array
    NSMutableData *pdfData = [NSMutableData data];

    // Points the pdf converter to the mutable data object and to the UIView to be converted
    UIGraphicsBeginPDFContextToData(pdfData, mainView.bounds, nil);
    UIGraphicsBeginPDFPage();
    CGContextRef pdfContext = UIGraphicsGetCurrentContext();


    // draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData

    [mainView.layer renderInContext:pdfContext];

    // remove PDF rendering context
    UIGraphicsEndPDFContext();

    // Retrieves the document directories from the iOS device
    NSArray* documentDirectories = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES);

    NSString* documentDirectory = [documentDirectories objectAtIndex:0];
    NSString* documentDirectoryFilename = [documentDirectory stringByAppendingPathComponent:aFilename];

    // instructs the mutable data object to write its context to a file on disk
    [pdfData writeToFile:documentDirectoryFilename atomically:YES];
//    NSLog(@"documentDirectoryFileName: %@",documentDirectoryFilename);
}