HTML (webview) から PDF を作成しようとしました。やったよ。しかし、私がひどく直面している問題は、各ページに 1 つの垂直線と 1 つの水平線が表示されることです。このリンクに添付されているように。
画像をクリックして ください 線が見えない場合は拡大してください。
私はこのコードを試しました
// 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, webView.bounds, nil);
UIGraphicsBeginPDFPage();
CGContextRef pdfContext = UIGraphicsGetCurrentContext();
// draws rect to the view and thus this is captured by UIGraphicsBeginPDFContextToData
[webView.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:@"tmp.pdf"];
// instructs the mutable data object to write its context to a file on disk
[pdfData writeToFile:documentDirectoryFilename atomically:YES];
NSLog(@"documentDirectoryFileName: %@",documentDirectoryFilename);
// Creates a mutable data object for updating with binary data, like a byte array
NSString *heightStr = [webView stringByEvaluatingJavaScriptFromString:@"document.body.scrollHeight;"];
int height = [heightStr intValue];
// CGRect screenRect = [[UIScreen mainScreen] bounds];
// CGFloat screenHeight = (self.contentWebView.hidden)?screenRect.size.width:screenRect.size.height;
CGFloat screenHeight = webView.bounds.size.height;
int pages = ceil(height / screenHeight);
UIGraphicsBeginPDFContextToData(pdfData, webView.bounds, nil);
CGRect frame = [webView frame];
for (int i = 0; i < pages; i++) {
// Check to screenHeight if page draws more than the height of the UIWebView
if ((i+1) * screenHeight > height) {
CGRect f = [webView frame];
f.size.height -= (((i+1) * screenHeight) - height);
[webView setFrame: f];
}
UIGraphicsBeginPDFPage();
CGContextRef currentContext = UIGraphicsGetCurrentContext();
//CGContextTranslateCTM(currentContext, 72, 72); // Translate for 1" margins
[[[webView subviews] lastObject] setContentOffset:CGPointMake(0, screenHeight * i) animated:NO];
[webView.layer renderInContext:currentContext];
}
UIGraphicsEndPDFContext();
// instructs the mutable data object to write its context to a file on disk
[pdfData writeToFile:self.PDFpath atomically:YES];
[webView setFrame:frame];
誰でもこれについて考えがありますか?