How to implement push notifications in android? [duplicate]

I'd like to implement push notifications in android ?

I prefer not to use an existing plugins

would someone give me an example of code on how to send a message

have been struggling since a week none of my tries have been successfull

This is my last try:

gcm.py

 import requests import json def send_gcm_message(api_key, regs_id, data, collapse_key=None): """ Send a GCM message for one or more devices, using json data api_key: The API_KEY from your console (https://code.google.com/apis/console, locate Key for Server Apps in Google Cloud Messaging for Android) regs_id: A list with the devices which will be receiving a message data: The dict data which will be send collapse_key: A string to group messages, look at the documentation about it: http://developer.android.com/google/gcm/gcm.html#request """ values = { 'registration_ids': regs_id, 'collapse_key': collapse_key, 'data': data } values = json.dumps(values) headers = { 'UserAgent': "GCM-Server", 'Content-Type': 'application/json', 'Authorization': 'key=' + api_key, } response = requests.post(url="https://android.googleapis.com/gcm/send", data=values, headers=headers) return response.content 

views.py

import settings from .gcm import send_gcm_message @render_to("push/envoyer_message.html") def send_message(request): if not request.user.is_authenticated(): return HttpResponseRedirect('/client/login') else: if request.method == 'POST': form = MessageForm(request.POST) if form.is_valid(): form.save() reg_id='APA91bFSIEHPOeT2I7ddCqnYtnJ-iAEQfCiR3HArUIz0t5lQUVfIOGhlEIUJCJLY7SWEdwiJCHedLNaSFi6oVqbnsci9-HmpBNiZAa86KD3349AIWMesweUqF2YbfpSBRot1tNLCITRFbYH9g5AO514s8Zzs4ABumA' msg='test' send = send_gcm_message(api_key = settings.GCM_APIKEY, regs_id=[reg_id], data={'msg': msg},collapse_key="message") messages.success(request, _(u'Formulaire envoyé avec succès.')) return HttpResponseRedirect(reverse("push-confirmation-envoi")) else: form = MessageForm() return locals() 

SOLVED

 regs_id = list() for device in devices_a : regs_id.append(device.token_string) message = json.dumps(message) values = { 'registration_ids': regs_id, 'collapse_key': "message" , 'data': {"message":str(msg.message)} } headers = { 'UserAgent': "GCM-Server", 'Content-Type': 'application/json', 'Authorization': 'key=' + settings.GCM_APIKEY, } response = requests.post(url="https://android.googleapis.com/gcm/send",data=json.dumps(values), headers=headers) r = json.loads(response.content) msg.nbr_android_recieved = r["success"]