objective-c - 按下提交按钮时以 Pdf 格式发送整个表单

Question

我正在制作一个 iphone 应用程序，其中我击中了一个部分。当用户按下提交按钮时，我想将整个表单以 pdf 格式发送到特定的电子邮件。任何帮助将非常感激。

谢谢

Answer 1

-(IBAction)takeScreenShot
{
if ([[UIScreen mainScreen] respondsToSelector:@selector(scale)])
UIGraphicsBeginImageContextWithOptions(self.view.bounds.size, NO, [UIScreen mainScreen].scale);
else
  UIGraphicsBeginImageContext(self.view.bounds.size);
[self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIImageView *newImage = [[UIImageView alloc] initWithImage:image];
UIGraphicsEndImageContext();

[self createPDFfromUIView:newImage saveToDocumentsWithFileName:@"SecondScreen1.pdf"];
}


-(void)createPDFfromUIView:(UIImageView*)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, aView.view.bounds, nil);
UIGraphicsBeginPDFPage();

// draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
[aView.layer renderInContext:UIGraphicsGetCurrentContext()];

// 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);
}

这将是工作。