public class CMainActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener {
public static Toolbar m_Toolbar;// toolbar
protected static DrawerLayout m_Drawer;// drawerlayout
private static CLoginSessionManagement s_oCloginSession;// refernce of loginsession management
private static ActionBarDrawerToggle s_drawerToggle;// drawer toggle
private final BroadcastReceiver m_oInternetChecker = new BroadcastReceiver() {// creating broadcast to receive otp sent by server from Inbox...
@Override
public void onReceive(Context context, Intent intent) {// on receive method to read OTP sent by server
//	getWallet();// check whether edit text is empty or not

}
};
private String TAG = CMainActivity.class.getSimpleName();
private TabLayout m_TabLayout;
private AlertDialog m_AlertDialog;
private boolean doubleBackToExitPressedOnce;
private AlertDialog.Builder m_Builder;
private ViewPager m_ViewPager;// declare view pager variable
private String s_szWalletBalance;
private String newString;

@SuppressWarnings("deprecation")
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

setupToolbar();

IntentFilter m_intentFilter = new IntentFilter();// creating object of Intentfilter class user for defining permission
m_intentFilter.addAction("android.net.conn.CONNECTIVITY_CHANGE");// action to check Internet connection
getApplicationContext().registerReceiver(m_oInternetChecker, m_intentFilter);// register receiver....
init();

}

public void init() {
s_oCloginSession = new CLoginSessionManagement(CMainActivity.this);// object creation of Login Session...



// navigation bar code
m_Drawer = (DrawerLayout) findViewById(R.id.drawer_layout);//finding id of drawerlayout
s_drawerToggle = new ActionBarDrawerToggle(
this, m_Drawer, m_Toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
m_Drawer.setDrawerListener(s_drawerToggle);
m_Drawer.setScrimColor(getResources().getColor(android.R.color.transparent));
s_drawerToggle.syncState();

NavigationView m_Navigation = (NavigationView) findViewById(R.id.nav_view);
m_Navigation.setNavigationItemSelectedListener(this);

m_TabLayout = (TabLayout) findViewById(R.id.tab_layout);// finding Id of tablayout
m_ViewPager = (ViewPager) findViewById(R.id.pager);//finding Id of ViewPager
m_TabLayout.addTab(m_TabLayout.newTab().setText("Deals"));// add deal listin tab
m_TabLayout.addTab(m_TabLayout.newTab().setText("Stories"));// add stories tab
m_TabLayout.setTabGravity(TabLayout.GRAVITY_FILL);// setting Gravity of Tab


CDealMainListingPager m_oDealMainScreenPager = new CDealMainListingPager(getSupportFragmentManager(), m_TabLayout.getTabCount());
m_ViewPager.setAdapter(m_oDealMainScreenPager);// adiing adapter to ViewPager
m_ViewPager.addOnPageChangeListener(new TabLayout.TabLayoutOnPageChangeListener(m_TabLayout));// performing action of page changing
m_TabLayout.setOnTabSelectedListener(new TabLayout.OnTabSelectedListener() {
@Override
public void onTabSelected(TabLayout.Tab tab) {
m_ViewPager.setCurrentItem(tab.getPosition());
}

@Override
public void onTabUnselected(TabLayout.Tab tab) {

}

@Override
public void onTabReselected(TabLayout.Tab tab) {

}
});
if (getIntent().hasExtra("login") && getIntent().getExtras().getBoolean("login")) {
CSnackBar.getInstance().showSnackBarSuccess(findViewById(R.id.drawer_layout), "Login success", getApplicationContext());
}
}

@Override
protected void onResume() {
super.onResume();
Log.i(TAG, "OnResume............");
if (m_ViewPager != null) {
m_ViewPager.setCurrentItem(0);
}
getWallet();
}

@Override
protected void onDestroy() {
super.onDestroy();
Log.i(TAG, "OnDestroy.................");
getApplicationContext().unregisterReceiver(m_oInternetChecker);// unregistaer broadcast receiver.
}

public void getWallet() {
if (NetworkUtil.isConnected(getApplicationContext())) {
getWalletBalance();// method to POST data to server to get wallet balance
} else {

CSnackBar.getInstance().showSnackBarError(findViewById(R.id.mainLayout), "No Internet Connection Available", getApplicationContext());
}
}


// setting toolbar
private void setupToolbar() {
m_Toolbar = (Toolbar) findViewById(R.id.toolbar);
setSupportActionBar(m_Toolbar);

//noinspection ConstantConditions
getSupportActionBar().setDisplayShowTitleEnabled(false);
}

void setupDrawerToggle() {
s_drawerToggle = new ActionBarDrawerToggle(this, m_Drawer, m_Toolbar, R.string.app_name, R.string.app_name);
//This is necessary to change the icon of the Drawer Toggle upon state change.
s_drawerToggle.syncState();
}

// performing onclick navigation bar item
@SuppressWarnings("StatementWithEmptyBody")
@Override
public boolean onNavigationItemSelected(MenuItem item) {
// Handle navigation view item clicks here.
int id = item.getItemId();

if (id == R.id.nav_wallet) {
// Handle the camera action
Intent wallet = new Intent(this, CMyWalletScreen.class);
startActivity(wallet);
} else if (id == R.id.referandEarn) {
Intent refer = new Intent(this, CReferAndEarnScreen.class);
startActivity(refer);
} else if (id == R.id.myProfile) {
Intent profile = new Intent(this, CMyProfile.class);
startActivity(profile);
} else if (id == R.id.setting) {
Intent setting = new Intent(this, CSettingScreen.class);
startActivity(setting);
} else if (id == R.id.LogOut) {
showdialog();
}
m_Drawer.closeDrawer(GravityCompat.START);
return true;
}

public void showdialog() {
m_Builder = new AlertDialog.Builder(CMainActivity.this);
m_Builder.setCancelable(false);
m_Builder.setTitle("Log Out");
String sourceString = "Log out now ?";
m_Builder.setMessage(Html.fromHtml(sourceString));
m_Builder.setPositiveButton(getString(R.string.log_out), new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
m_AlertDialog.dismiss();
s_oCloginSession.logoutUser();
}
});
m_Builder.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
m_AlertDialog.dismiss();
}
});
m_AlertDialog = m_Builder.create();
m_AlertDialog.show();
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
int id = item.getItemId();

//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}

public void getWalletBalance() {
try {
CLoginSessionManagement s_oSessionManagement = new CLoginSessionManagement(getApplicationContext());// making object of Registartion session management
// retreive user data from shared preferencce........
HashMap<String, String> user = s_oSessionManagement.getLoginDetails();// getting String from Regisatrtion session
String m_szMobileNumber = user.get(CLoginSessionManagement.s_szKEY_MOBILE).trim();
String m_szEncryptedPassword = user.get(CLoginSessionManagement.s_szKEY_PASSWORD).trim();

String json;
// 3. build jsonObject
JSONObject jsonObject = new JSONObject();
jsonObject.put("agentCode", m_szMobileNumber);// sending mobile no.(static right know becuse of ser side data on other is null
jsonObject.put("pin", m_szEncryptedPassword);// same here as said above

// 4. convert JSONObject to JSON to String
json = jsonObject.toString();
Log.e(TAG, "Server Request:-" + json);
RequestQueue requestQueue = Volley.newRequestQueue(getApplicationContext());
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, CServerAPI.s_szWalletURL, jsonObject, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
Log.e(TAG, "Server Response:-" + response);
try {
if (response.getString("resultdescription").equalsIgnoreCase("Transaction Successful")) {
s_szWalletBalance = response.getString("walletbalance").trim();// get wallet balance fro response
String trimwalletBalance = s_szWalletBalance.substring(0, s_szWalletBalance.indexOf("."));// trim waalet balance from response.
CWalletDataModel.getInstance().setS_szWalletBalance(trimwalletBalance);// set wallet balance
//	showing wallet transaction in textView....
m_Toolbar.setTitle(CWalletDataModel.getInstance().getS_szWalletBalance() + " Points");
Log.e(TAG, CWalletDataModel.getInstance().getS_szWalletBalance());

} else {

}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Server error:-" + error);
if (error instanceof TimeoutError) {
CSnackBar.getInstance().showSnackBarError(findViewById(R.id.mainLayout), "Connection time out! please try again", getApplicationContext());
} else if (error instanceof NetworkError) {
CSnackBar.getInstance().showSnackBarError(findViewById(R.id.mainLayout), "No Internet connection", getApplicationContext());
}
}
});

requestQueue.add(jsonObjectRequest);
} catch (JSONException e) {
e.printStackTrace();
}
}

@Override
public void onBackPressed() {
if (doubleBackToExitPressedOnce) {
super.onBackPressed();
CMainActivity.this.finish();
return;
}
this.doubleBackToExitPressedOnce = true;
Toast.makeText(this, getResources().getString(R.string.pressagaintoexit), Toast.LENGTH_SHORT).show();
new Handler().postDelayed(new Runnable() {
@Override
public void run() {
doubleBackToExitPressedOnce = false;
}
}, 2000);
}

}