whatsapp

I could not find any answers related to the working mechanism of qr code scanning used on whatsapp web-app . How does the authentication happen when the phone (any smartphone running whatsapp) scans the qr code on the browser. I don't want about the technology stack behind them.Like whatsapp uses modified version of xmpp , uses erlang , uses web technologies like socket.io and ajax for the web version to implement such functionality. The question might be broad.But I am eager to know about the implementation behind it. It works like this : 1- You open the following URL on your browser : https:

I am interested in making my app appear in the apps list shown when I use the "email conversation" feature in WhatsApp. When logging my phone while using the "email conversation" WhatsApp feature I can see a SEND_MULTIPLE intent being received by Gmail: I/ActivityManager( 859): START u0 {act=android.intent.action.SEND_MULTIPLE typ=text/* flg=0xb080001 pkg=com.google.android.gm cmp=com.google.android.gm/.ComposeActivityGmail (has clip) (has extras)} from uid 10114 on display 0 So I suppose I need to add an intent filter for the SEND_MULTIPLE action in my app manifest. Currently my

As in whatsapp I need a recoding button and a slide to cancel and fade animation , I have searched for similar code but didn't got one. I am new to android programming any help or link could be helpful. I have created a github project.You can take a look at it https://github.com/sarathnk/Audio audioSendButton.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View view, MotionEvent motionEvent) { if (motionEvent.getAction() == MotionEvent.ACTION_DOWN) { FrameLayout.LayoutParams params = (FrameLayout.LayoutParams) slideText .getLayoutParams(); params.leftMargin =

I have image in assets folder and need to share it with whatsapp application I tried this code , it keeps give me sharing failed try again ! what's wrong ?! Intent share = new Intent(Intent.ACTION_SEND); share.setType("image/*"); share.setPackage("com.whatsapp"); // share.putExtra(Intent.EXTRA_STREAM, Uri.fromFile(new File("file:///assets/epic/adv.png"))); share.putExtra(Intent.EXTRA_STREAM, Uri.parse("file:///assets/epic/adv.png")); this.startActivity(Intent.createChooser(share, "share_via")); You have several problems. First, file:///assets/ is not a valid Uri on any version of Android. Your

I know there is scheme to communicate with whatsapp like: NSURL *whatsappURL = [NSURL URLWithString:@"whatsapp://send?text=Hello%2C%20World!"]; if ([[UIApplication sharedApplication] canOpenURL: whatsappURL]) { [[UIApplication sharedApplication] openURL: whatsappURL]; } But i can't find how to open whatsapp with a phone number that don't exist before. It's for a "contatc us" page and if i can only open whatsapp and can't pre fill a phone number, it's useless. I need to be contacted with whatsapp... Does what I am trying to do exist ? For phone number pre-filled And Text NSURL *whatsappURL =

I used these code for share app link in what's app but nothing is come in the textfield of whatsapp. If using simple text then its work. Can anyone suggest the final outcome. NSString *theTempMessage = @"whatsapp://send?text=https://itunes.apple.com/in/app/myapp/id1054375332?ls=1&mt=8"; NSString *theFinalMessage; theTempMessage = [theTempMessage stringByReplacingOccurrencesOfString:@":" withString:@"%3A"]; theTempMessage = [theTempMessage stringByReplacingOccurrencesOfString:@"/" withString:@"%2F"]; theTempMessage = [theTempMessage stringByReplacingOccurrencesOfString:@"?" withString:@"%3F"];