Register.java

package com.example.app;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.Settings;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;

import com.lifecarnival.app.utils.Connectivity;
import com.lifecarnival.app.utils.ValidationClass;
import com.lifecarnival.app.utils.WakeLocker;

import static com.lifecarnival.app.CommonUtilities.SENDER_ID;
import static com.lifecarnival.app.CommonUtilities.SERVER_URL;
import static com.lifecarnival.app.CommonUtilities.DISPLAY_MESSAGE_ACTION;
import static com.lifecarnival.app.CommonUtilities.EXTRA_MESSAGE;
import com.google.android.gcm.GCMRegistrar;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;

public class RegisterActivity extends Activity {

    // UI elements
    EditText txtName;
    EditText txtEmail;
    EditText txtPass;
    EditText txtUserName;
    Connectivity netConnect;
    Button btnRegister;
    public static final String PREFS_NAME = "Registration";
    private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
    private static final String TAG = "GCMIntentService";
    AsyncTask<Void, Void, Void> mRegisterTask;
    static String name,email,pass,username;
    SharedPreferences settings;;
    SharedPreferences.Editor prefEditor;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.gcmregistration);

        settings = getSharedPreferences(PREFS_NAME, 0);
        prefEditor = settings.edit();

        netConnect = new Connectivity(getApplicationContext());

        // Check if GCM configuration is set
        if (SERVER_URL == null || SENDER_ID == null || SERVER_URL.length() == 0
                || SENDER_ID.length() == 0) {
            // GCM sernder id / server url is missing
            showAlert("Server Configuration Error", "Please contact application developer.");
            // stop executing code by return
             return;
        }

        txtName = (EditText) findViewById(R.id.txtName);
        txtEmail = (EditText) findViewById(R.id.txtEmail);
        txtPass = (EditText) findViewById(R.id.txtPassword);
        txtUserName = (EditText) findViewById(R.id.txtuserName);
        btnRegister = (Button) findViewById(R.id.btnRegister);


        btnRegister.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View arg0) {
                // Read EditText dat
                name = txtName.getText().toString();
                email = txtEmail.getText().toString();
                pass = txtPass.getText().toString();
                username = txtUserName.getText().toString();
                // Check if user filled the form
                if(ValidationClass.validateName(username) && ValidationClass.validateName(name) && ValidationClass.validateEmail(email) && ValidationClass.validatePassword(pass)){
                    // Check if Internet present
                    if (!netConnect.haveNetworkConnection()) {
                        // Internet Connection is not present
                        showAlert("Internet Connection Error", "Please connect to internet before registration.");
                        // stop executing code by return
                        return;
                    }
                    else
                    {
                        processRegistration();
                    }
                }
                else{
                    // user didn't fill that data
                    // ask him to fill the form
                    showAlert("Registration Error!", "Please enter your details correctly");
                }
            }
        });
    }

    void processRegistration()
    {
        /*
        if(!checkPlayServices())
        {
            showAlert("Google Play Service","Your Google Play Service APK is incompatible. Please download the latest APK from the playstore.");
            finish();
        }
        */
        // Make sure the device has the proper dependencies.
        GCMRegistrar.checkDevice(this);
        GCMRegistrar.checkManifest(this);
        registerReceiver(mHandleMessageReceiver, new IntentFilter(
                DISPLAY_MESSAGE_ACTION));
        // Get GCM registration id
        final String regId = GCMRegistrar.getRegistrationId(this);

        // Check if regid already presents
        if (regId.equals("")) {
            // Registration is not present, register now with GCM
            System.out.println("Empty string reg id");
            GCMRegistrar.register(this, SENDER_ID);
        }
        else {
            // Device is already registered on GCM
            if (GCMRegistrar.isRegisteredOnServer(this)) {
                // Skips registration.
                System.out.println("some string reg id");
                Toast.makeText(getApplicationContext(), "Already registered with GCM", Toast.LENGTH_LONG).show();
            }
            else {
                final Context context = this;
                System.out.println("async reg will execute");
                mRegisterTask = new AsyncTask<Void, Void, Void>() {

                    @Override
                    protected Void doInBackground(Void... params) {
                        // Register on our server
                        // On server creates a new user
                        ServerUtilities.register(context, name, username, email, pass, regId);
                        return null;
                    }

                    @Override
                    protected void onPostExecute(Void result) {
                        mRegisterTask = null;
                    }

                };
                mRegisterTask.execute(null, null, null);
            }
        }
        prefEditor.putString("registered", "yes");
        prefEditor.putString("user_name", name);
        prefEditor.putString("user_email", email);
        prefEditor.commit();
        showAlert("Success!", "Congratulations! You are now registered to Life Carnival.\n Note: You don't need to sign in for this app.");
    }
    /*
    private void checkGoogleAccountSync()
    {
        AccountManager am = AccountManager.get(this);
        boolean syncEnabled = false;
        Account[] accounts = am.getAccountsByType("com.google");
        if(accounts.length>0)
        {
            syncEnabled = ContentResolver.getSyncAutomatically(accounts[0], ContactsContract.AUTHORITY);
        }
        Log.d("ACCOUNT SYNC", "syncStatusofaccount"+syncEnabled);

        if(!syncEnabled){

            AlertDialog.Builder showAlert = new AlertDialog.Builder(RegisterActivity.this);
            showAlert.setTitle("Google Account Sync Required");
            showAlert.setMessage("Your device is not synced with a Google account(e.g. gmail account). " +
                    " Please go to Settings->Accounts&Sync or you can click Sync Device now.");
            showAlert.setPositiveButton("Sync Device",new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface dialog,int whichButton) {
                    // TODO Auto-generated method stub
                    Intent intent = new Intent(Settings.ACTION_SYNC_SETTINGS);
                    startActivity(intent);
                }
            });
            showAlert.setNegativeButton("No", new DialogInterface.OnClickListener() {

                public void onClick(DialogInterface dialog,int whichButton) {
                    // TODO Auto-generated method stub
                    finish();

                    Intent intent = new Intent(getApplicationContext(),MainActivity.class);
                    startActivity(intent);

                }
            });
            showAlert.show();


        }
    }
    */
    public void showAlert(String title, String message)
    {
        AlertDialog.Builder showAlert = new AlertDialog.Builder(RegisterActivity.this);
        showAlert.setTitle(title);
        showAlert.setMessage(message);
        showAlert.setPositiveButton("OK",new DialogInterface.OnClickListener() {

            public void onClick(DialogInterface dialog,int whichButton) {
                // TODO Auto-generated method stub
            }
        });
        showAlert.show();
        Intent intent = new Intent(Settings.ACTION_SYNC_SETTINGS);
        startActivity(intent);
    }

    private boolean checkPlayServices() {
        int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
        if (resultCode != ConnectionResult.SUCCESS) {
            if (GooglePlayServicesUtil.isUserRecoverableError(resultCode)) {
                GooglePlayServicesUtil.getErrorDialog(resultCode, this,
                        PLAY_SERVICES_RESOLUTION_REQUEST).show();
            } else {
                Log.i(TAG, "This device is not supported.");
                finish();
            }
            return false;
        }
        return true;
    }

    private final BroadcastReceiver mHandleMessageReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            String newMessage = intent.getExtras().getString(EXTRA_MESSAGE);
            // Waking up mobile if it is sleeping
            WakeLocker.acquire(getApplicationContext());

            WakeLocker.release();
        }
    };

    @Override
    protected void onDestroy() {
        if (mRegisterTask != null) {
            mRegisterTask.cancel(true);
        }
        try {
            unregisterReceiver(mHandleMessageReceiver);
            GCMRegistrar.onDestroy(this);
        } catch (Exception e) {
            Log.e("UnRegister Receiver Error", "> " + e.getMessage());
        }
        super.onDestroy();
    }

}