Gran código, pero estoy teniendo un pequeño problema al trabajarlo en mi proyecto. Obtiene todas las URL correctamente, pero cuando hago clic en él no sucede nada. Aquí está mi código. Tuve que modificar ligeramente el suyo para trabajar con mi proyecto). ¿Hay algo que falta:
- (void) renderPageAtIndex:(NSUInteger)index inContext:(CGContextRef)ctx {
//CGPDFPageRef page = CGPDFDocumentGetPage(pdf, index+1);
CGPDFPageRef page = CGPDFDocumentGetPage(pdf, index+1);
CGAffineTransform transform1 = aspectFit(CGPDFPageGetBoxRect(page, kCGPDFMediaBox),
CGContextGetClipBoundingBox(ctx));
CGContextConcatCTM(ctx, transform1);
CGContextDrawPDFPage(ctx, page);
int pageCount = CGPDFDocumentGetNumberOfPages(pdf);
int i = 0;
while (i<pageCount) {
i++;
CGPDFPageRef page = CGPDFDocumentGetPage(pdf, i+1);
CGPDFDictionaryRef pageDictionary = CGPDFPageGetDictionary(page);
CGPDFArrayRef outputArray;
if(!CGPDFDictionaryGetArray(pageDictionary, "Annots", &outputArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(outputArray);
if(!arrayCount) {
continue;
}
for(int j = 0; j < arrayCount; ++j) {
CGPDFObjectRef aDictObj;
if(!CGPDFArrayGetObject(outputArray, j, &aDictObj)) {
return;
}
CGPDFDictionaryRef annotDict;
if(!CGPDFObjectGetValue(aDictObj, kCGPDFObjectTypeDictionary, &annotDict)) {
return;
}
CGPDFDictionaryRef aDict;
if(!CGPDFDictionaryGetDictionary(annotDict, "A", &aDict)) {
return;
}
CGPDFStringRef uriStringRef;
if(!CGPDFDictionaryGetString(aDict, "URI", &uriStringRef)) {
return;
}
CGPDFArrayRef rectArray;
if(!CGPDFDictionaryGetArray(annotDict, "Rect", &rectArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(rectArray);
CGPDFReal coords[4];
for(int k = 0; k < arrayCount; ++k) {
CGPDFObjectRef rectObj;
if(!CGPDFArrayGetObject(rectArray, k, &rectObj)) {
return;
}
CGPDFReal coord;
if(!CGPDFObjectGetValue(rectObj, kCGPDFObjectTypeReal, &coord)) {
return;
}
coords[k] = coord;
}
char *uriString = (char *)CGPDFStringGetBytePtr(uriStringRef);
NSString *uri = [NSString stringWithCString:uriString encoding:NSUTF8StringEncoding];
CGRect rect = CGRectMake(coords[0],coords[1],coords[2],coords[3]);
CGPDFInteger pageRotate = 0;
CGPDFDictionaryGetInteger(pageDictionary, "Rotate", &pageRotate);
CGRect pageRect = CGRectIntegral(CGPDFPageGetBoxRect(page, kCGPDFMediaBox));
if(pageRotate == 90 || pageRotate == 270) {
CGFloat temp = pageRect.size.width;
pageRect.size.width = pageRect.size.height;
pageRect.size.height = temp;
}
rect.size.width -= rect.origin.x;
rect.size.height -= rect.origin.y;
CGAffineTransform trans = CGAffineTransformIdentity;
trans = CGAffineTransformTranslate(trans, 0, pageRect.size.height);
trans = CGAffineTransformScale(trans, 1.0, -1.0);
rect = CGRectApplyAffineTransform(rect, trans);
// do whatever you need with the coordinates.
// e.g. you could create a button and put it on top of your page
// and use it to open the URL with UIApplication's openURL
NSURL *url = [NSURL URLWithString:uri];
NSLog(@"URL: %@", url);
CGPDFContextSetURLForRect(ctx, (CFURLRef)url, rect);
// CFRelease(url);
}
}
}
Gracias & gran Brainfeeder trabajo!
ACTUALIZACIÓN:
Para cualquiera usando el proyecto hojas en su aplicación así es como llegué los enlaces PDF a trabajar (no es perfecto como el rect parece llenar toda la pantalla, pero es un comienzo):
- (void) renderPageAtIndex:(NSUInteger)index inContext:(CGContextRef)ctx {
CGPDFPageRef page = CGPDFDocumentGetPage(pdf, index+1);
CGAffineTransform transform1 = aspectFit(CGPDFPageGetBoxRect(page, kCGPDFMediaBox),
CGContextGetClipBoundingBox(ctx));
CGContextConcatCTM(ctx, transform1);
CGContextDrawPDFPage(ctx, page);
CGPDFPageRef pageAd = CGPDFDocumentGetPage(pdf, index);
CGPDFDictionaryRef pageDictionary = CGPDFPageGetDictionary(pageAd);
CGPDFArrayRef outputArray;
if(!CGPDFDictionaryGetArray(pageDictionary, "Annots", &outputArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(outputArray);
if(!arrayCount) {
//continue;
}
for(int j = 0; j < arrayCount; ++j) {
CGPDFObjectRef aDictObj;
if(!CGPDFArrayGetObject(outputArray, j, &aDictObj)) {
return;
}
CGPDFDictionaryRef annotDict;
if(!CGPDFObjectGetValue(aDictObj, kCGPDFObjectTypeDictionary, &annotDict)) {
return;
}
CGPDFDictionaryRef aDict;
if(!CGPDFDictionaryGetDictionary(annotDict, "A", &aDict)) {
return;
}
CGPDFStringRef uriStringRef;
if(!CGPDFDictionaryGetString(aDict, "URI", &uriStringRef)) {
return;
}
CGPDFArrayRef rectArray;
if(!CGPDFDictionaryGetArray(annotDict, "Rect", &rectArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(rectArray);
CGPDFReal coords[4];
for(int k = 0; k < arrayCount; ++k) {
CGPDFObjectRef rectObj;
if(!CGPDFArrayGetObject(rectArray, k, &rectObj)) {
return;
}
CGPDFReal coord;
if(!CGPDFObjectGetValue(rectObj, kCGPDFObjectTypeReal, &coord)) {
return;
}
coords[k] = coord;
}
char *uriString = (char *)CGPDFStringGetBytePtr(uriStringRef);
NSString *uri = [NSString stringWithCString:uriString encoding:NSUTF8StringEncoding];
CGRect rect = CGRectMake(coords[0],coords[1],coords[2],coords[3]);
CGPDFInteger pageRotate = 0;
CGPDFDictionaryGetInteger(pageDictionary, "Rotate", &pageRotate);
CGRect pageRect = CGRectIntegral(CGPDFPageGetBoxRect(page, kCGPDFMediaBox));
if(pageRotate == 90 || pageRotate == 270) {
CGFloat temp = pageRect.size.width;
pageRect.size.width = pageRect.size.height;
pageRect.size.height = temp;
}
rect.size.width -= rect.origin.x;
rect.size.height -= rect.origin.y;
CGAffineTransform trans = CGAffineTransformIdentity;
trans = CGAffineTransformTranslate(trans, 0, pageRect.size.height);
trans = CGAffineTransformScale(trans, 1.0, -1.0);
rect = CGRectApplyAffineTransform(rect, trans);
// do whatever you need with the coordinates.
// e.g. you could create a button and put it on top of your page
// and use it to open the URL with UIApplication's openURL
NSURL *url = [NSURL URLWithString:uri];
NSLog(@"URL: %@", url);
// CGPDFContextSetURLForRect(ctx, (CFURLRef)url, rect);
UIButton *button = [[UIButton alloc] initWithFrame:rect];
[button setTitle:@"LINK" forState:UIControlStateNormal];
[button addTarget:self action:@selector(openLink:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
// CFRelease(url);
}
//}
Informe final de actualización a continuación se muestra el código final que utilicé en mis aplicaciones.
- (void) renderPageAtIndex:(NSUInteger)index inContext:(CGContextRef)ctx {
//If the view already contains a button control remove it
if ([[self.view subviews] containsObject:button]) {
[button removeFromSuperview];
}
CGPDFPageRef page = CGPDFDocumentGetPage(pdf, index+1);
CGAffineTransform transform1 = aspectFit(CGPDFPageGetBoxRect(page, kCGPDFMediaBox),
CGContextGetClipBoundingBox(ctx));
CGContextConcatCTM(ctx, transform1);
CGContextDrawPDFPage(ctx, page);
CGPDFPageRef pageAd = CGPDFDocumentGetPage(pdf, index);
CGPDFDictionaryRef pageDictionary = CGPDFPageGetDictionary(pageAd);
CGPDFArrayRef outputArray;
if(!CGPDFDictionaryGetArray(pageDictionary, "Annots", &outputArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(outputArray);
if(!arrayCount) {
//continue;
}
for(int j = 0; j < arrayCount; ++j) {
CGPDFObjectRef aDictObj;
if(!CGPDFArrayGetObject(outputArray, j, &aDictObj)) {
return;
}
CGPDFDictionaryRef annotDict;
if(!CGPDFObjectGetValue(aDictObj, kCGPDFObjectTypeDictionary, &annotDict)) {
return;
}
CGPDFDictionaryRef aDict;
if(!CGPDFDictionaryGetDictionary(annotDict, "A", &aDict)) {
return;
}
CGPDFStringRef uriStringRef;
if(!CGPDFDictionaryGetString(aDict, "URI", &uriStringRef)) {
return;
}
CGPDFArrayRef rectArray;
if(!CGPDFDictionaryGetArray(annotDict, "Rect", &rectArray)) {
return;
}
int arrayCount = CGPDFArrayGetCount(rectArray);
CGPDFReal coords[4];
for(int k = 0; k < arrayCount; ++k) {
CGPDFObjectRef rectObj;
if(!CGPDFArrayGetObject(rectArray, k, &rectObj)) {
return;
}
CGPDFReal coord;
if(!CGPDFObjectGetValue(rectObj, kCGPDFObjectTypeReal, &coord)) {
return;
}
coords[k] = coord;
}
char *uriString = (char *)CGPDFStringGetBytePtr(uriStringRef);
NSString *uri = [NSString stringWithCString:uriString encoding:NSUTF8StringEncoding];
CGRect rect = CGRectMake(coords[0],coords[1],coords[2],coords[3]);
CGPDFInteger pageRotate = 0;
CGPDFDictionaryGetInteger(pageDictionary, "Rotate", &pageRotate);
CGRect pageRect = CGRectIntegral(CGPDFPageGetBoxRect(page, kCGPDFMediaBox));
if(pageRotate == 90 || pageRotate == 270) {
CGFloat temp = pageRect.size.width;
pageRect.size.width = pageRect.size.height;
pageRect.size.height = temp;
}
rect.size.width -= rect.origin.x;
rect.size.height -= rect.origin.y;
CGAffineTransform trans = CGAffineTransformIdentity;
trans = CGAffineTransformTranslate(trans, 35, pageRect.size.height+150);
trans = CGAffineTransformScale(trans, 1.15, -1.15);
rect = CGRectApplyAffineTransform(rect, trans);
urlLink = [NSURL URLWithString:uri];
[urlLink retain];
//Create a button to get link actions
button = [[UIButton alloc] initWithFrame:rect];
[button setBackgroundImage:[UIImage imageNamed:@"link_bg.png"] forState:UIControlStateHighlighted];
[button addTarget:self action:@selector(openLink:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:button];
}
[leavesView reloadData];
}
}
línea 6, ¿no debería ser 'continue' en lugar de' return'? - ¿Por qué regresas después de verificar objeto, valor, dict, cadena, matriz, etc. –
Es solo un código de ejemplo sin ninguna comprobación de errores. – pt2ph8
PDF rects no traducir a rects nativos ver mi hilo para más detalles: desplazarse hacia abajo hasta: 'Otras características PDF', 'Obtener enlaces dentro de un PDF', 'Entender el PDF Rect para posicionamiento de enlace' http://stackoverflow.com/questions/3889634/fast-and-lean-pdf-viewer-for-iphone-ipad-ios-tips-and-hints –