iphone - pdf在模拟器中显示但在iPhone中不显示

Question

我一直在努力解决过去几个小时的问题。我以编程方式制作 pdf 并将其保存在 ~/library/Application Support/iPhone Simulator/... 并且这些程序在模拟器中对我来说工作正常。我可以在 webView 中保存和检索 pdf。

但是当我在 iPhone4 设备上测试我的应用程序时，我在检索时看不到 pdf 文件。我是新手，所以我不知道手动检查是否在设备中创建了 pdf。

请给我帮助。

谢谢

我从这段代码中保存 pdf:

- (void)generatePdfButtonPressed{

pageSize = CGSizeMake(612, 792);
NSString *fileName = @"Demo.pdf";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *pdfFileName = [documentsDirectory stringByAppendingPathComponent:fileName];

[self generatePdfWithFilePath:pdfFileName];
}


- (void) generatePdfWithFilePath: (NSString *)thefilePath
{
UIGraphicsBeginPDFContextToFile(thefilePath, CGRectZero, nil);

NSInteger currentPage = 0;
BOOL done = NO;
do
{
    // Mark the beginning of a new page.
    UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, pageSize.width, pageSize.height), nil);

    // Draw a page number at the bottom of each page.
    currentPage++;
    //[self drawPageNumber:currentPage];

    //Draw a border for each page.
  //  [self drawBorder];

    //Draw text fo our header.
    [self drawHeader];

    //Draw a line below the header.
    [self drawLine];


    //Draw personel details
    [self drawPersonelDetail];

    //Draw Education
    [self drawEducation];




    //Draw work Experiences
    [self drawWorkExperiences];

    //Draw work Activities
    [self drawActivities];


    //Draw Skills
    [self drawSkils];


    //Draw some text for the page.
 //   [self drawText];

    yCord=550;
//    [self drawText];

    //Draw an image
//    [self drawImage];
    done = YES;
}
while (!done);

// Close the PDF context and write the contents out.
UIGraphicsEndPDFContext();
}

Answer 1

经过长时间的努力，我找到了自己问题的解决方案:我在下面提供的解决方案可能对其他人有帮助。

- (void)generatePdfButtonPressed{

pageSize = CGSizeMake(612, 792);
NSString *fileName = @"Demo.pdf";
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *pdfFileName = [documentsDirectory stringByAppendingPathComponent:fileName];

[self generatePdfWithFilePath:pdfFileName];
}


- (void) generatePdfWithFilePath: (NSString *)thefilePath
{
UIGraphicsBeginPDFContextToFile(thefilePath, CGRectZero, nil);

NSInteger currentPage = 0;
BOOL done = NO;
do
{
// Mark the beginning of a new page.
UIGraphicsBeginPDFPageWithInfo(CGRectMake(0, 0, pageSize.width, pageSize.height), nil);

// Draw a page number at the bottom of each page.
currentPage++;
[self drawPageNumber:currentPage];

//Draw a border for each page.
 [self drawBorder];

//Draw text  our header.
[self drawHeader];

//Draw a line below the header.
[self drawLine];


//Draw personel details
[self drawPersonelDetail];

//Draw Education
[self drawEducation];


//Draw an image
[self drawImage];

done = YES;
}
while (!done);

// Close the PDF context and write the contents out.
UIGraphicsEndPDFContext();
}



And for Display the pdf file the method is :

- (void)showPdfClicked
{

pdf1View.scalesPageToFit = YES;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

NSLog(@"%@",documentsDirectory);

NSString *path1 =[documentsDirectory stringByAppendingPathComponent:@"Demo.pdf"];

NSLog(@"Retruve Save path is %@: ",path1);
// NSString *path1 = [[NSBundle mainBundle] pathForResource:@"pdf1" ofType:@"pdf"];
NSURL *targetURL1 = [NSURL fileURLWithPath:path1];
NSURLRequest *request1 = [NSURLRequest requestWithURL:targetURL1];
[pdf1View loadRequest:request1];

}