Send message to specific number whatsapp android? -


how can send message specific number in whatsapp.

i searched , found code

 uri uri = uri.parse("smsto:" + number);     intent = new intent(intent.action_sendto, uri);     i.putextra("sms_body", "as sdj ajs");     i.setpackage("com.whatsapp");     startactivity(i);

it opens number's chat window no message displayed in edit text.

also tried 

 cursor c = getcontentresolver().query(contactscontract.data.content_uri,             new string[] { contactscontract.contacts.data._id }, contactscontract.data.data1 + "=?",             new string[] { "number@s.whatsapp.net" }, null);     c.movetofirst();     intent = new intent(intent.action_view, uri.parse("content://com.android.contacts/data/" + c.getstring(0)));      startactivity(i);     c.close();

but force closes app

android.database.cursorindexoutofboundsexception: index 0 requested, size of 0         @ android.database.abstractcursor.checkposition(abstractcursor.java:426)         @ android.database.abstractwindowedcursor.checkposition(abstractwindowedcursor.java:136)         @ android.database.abstractwindowedcursor.getstring(abstractwindowedcursor.java:50)         @ android.database.cursorwrapper.getstring(cursorwrapper.java:114)         @ com.appprix.app.applauncher.whatsappshare(applauncher.java:113)         @ appprix.refer.referfragment.onclick(referfragment.java:74)         @ android.view.view.performclick(view.java:4575)         @ android.view.view$performclick.run(view.java:18578)         @ android.os.handler.handlecallback(handler.java:733)         @ android.os.handler.dispatchmessage(handler.java:95)         @ android.os.looper.loop(looper.java:136)         @ android.app.activitythread.main(activitythread.java:5127)         @ java.lang.reflect.method.invokenative(native method)         @ java.lang.reflect.method.invoke(method.java:515)         @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:825)         @ com.android.internal.os.zygoteinit.main(zygoteinit.java:641)         @ dalvik.system.nativestart.main(native method)

do way

public void onclickwhatsapp(view view) {      packagemanager pm=getpackagemanager();     try {          intent waintent = new intent(intent.action_send);         waintent.settype("text/plain");         string text = "your text here";          packageinfo info=pm.getpackageinfo("com.whatsapp", packagemanager.get_meta_data);         //check if package exists or not. if not code          //in catch block called         waintent.setpackage("com.whatsapp");              waintent.putextra(intent.extra_text, text);             startactivity(intent.createchooser(waintent, "share with"));     } catch (namenotfoundexception e) {         toast.maketext(this, "whatsapp not installed", toast.length_short)                 .show();    }    }

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