How to automatically send short messages to the simulator of this machine?

Private Void Send (String Content, String Mobile){// Get the manager for sending short messages, and use android.telephony.SMS manager SMS manager = SMS manager.getdefault (); //If the short message content is too long, send if (content. Length ()) in segments > 70){ // Use SMS Manager to segment the short message content and return the segmented ArrayList Contents = SMS Manager. Divide the message (content); For(String msg: contents){ // Use SMS manager to send SMS content//Parameter 1 For SMS receiver//Parameter 3 for SMS content//Others can be set as empty SMS manager. Send SMS (mobile phone, empty, msg, empty, empty); }//Otherwise, send} else {SMS manager. Sendtextmessage (mobile, null, content, null, null) once; }} The method of sending short messages in the background. . Add permission to send short messages.