如何在iphone上分享whatsapp上的圖片+文字說明（URL）？

Question

我已經使用上了WhatsApp共享圖像下面的代碼，但我無法設置使用下面的代碼的標題文字。

我已經試過的UIDocumentInteractionController註釋財產，但在WhatsApp的開發形式沒有任何鍵被註解指定。

我知道我們可以通過UIImageGraphicContext做到這一點，但我需要共享URL作爲標題

if ([[UIApplication sharedApplication] canOpenURL: [NSURL URLWithString:@"whatsapp://app"]]) 
{ 
    NSString * savePath = [NSHomeDirectory() stringByAppendingPathComponent:@"Documents/whatsAppTmp.wai"]; 

    [UIImageJPEGRepresentation([UIImage imageNamed:@"Convenor- image-SURANA1.png"], 1.0) writeToFile:savePath atomically:YES]; 

    _documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:savePath]]; 
    _documentInteractionController.annotation = [NSDictionary dictionaryWithObject:@"wwww.google.com" forKey:@"whatsappCaption"]; 

    _documentInteractionController.UTI = @"net.whatsapp.image"; 
    _documentInteractionController.delegate = self; 

    [_documentInteractionController presentOpenInMenuFromRect:CGRectMake(0, 0, 0, 0) inView:self.view animated: YES]; 

} else { 
    UIAlertView * alert = [[UIAlertView alloc] initWithTitle:@"Alert." message:@"Por favor, instale Whatsapp." delegate:nil cancelButtonTitle:@"Está bem" otherButtonTitles:nil]; 
    [alert show]; 
} 

Answer 1

NSError *error  = nil; 
NSURL *documentURL = [[NSFileManager defaultManager] URLForDirectory:NSDocumentDirectory inDomain:NSUserDomainMask appropriateForURL:nil create:NO error:&error]; 

UIImage *image  = [UIImage imageNamed:@"share.png"]; 
NSURL *tempFile = [documentURL URLByAppendingPathComponent:@"whatsAppTmp.wai"]; 
NSData *imageData = UIImageJPEGRepresentation(image, 1.0); 

NSString *docDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]; 

NSLog(@"%@",docDir); 
NSLog(@"saving png"); 

NSString *pngFilePath = [NSString stringWithFormat:@"%@/test.png",docDir]; 
NSData *data1 = [NSData dataWithData:UIImageJPEGRepresentation(image,1.0)]; 
[data1 writeToFile:pngFilePath atomically:YES]; 
_documentInteractionController = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:pngFilePath]]; 
_documentInteractionController.delegate = self; 
_documentInteractionController.UTI = @"net.whatsapp.image"; 

[_documentInteractionController presentOpenInMenuFromRect:CGRectMake(0, 0, 0, 0) inView:self.view animated: YES]; 

Answer 2

你不能預先填寫標題，而在WhatsApp的分享圖像。 Facebook也已經棄用了Facebook的這一功能。

您可以發送文本或圖像。但以編程方式預填字幕是不可能的。

在問題的代碼是罰款發送圖像。爲了發送純文本可以使用下面提及鏈接的參考：

http://www.whatsapp.com/faq/en/iphone/23559013

注意：編程設置標題是不可能的。

希望這有助於！