LoginMainPageActivity

package com.dss.invitup.vc.login;
import android.Manifest;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.Settings;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.FragmentManager;
import android.support.v7.app.AppCompatActivity;
import android.telephony.TelephonyManager;
import android.util.Log;
import android.view.Window;
import android.view.WindowManager;
import android.widget.FrameLayout;
import com.dss.invitup.R;
import com.dss.invitup.events.AddPicturePermissionEvent;
import com.dss.invitup.events.LoginMainPageBackButtonTapped;
import com.dss.invitup.singleton.InterfaceManager;
import com.dss.invitup.singleton.SettingsManager;
import com.dss.invitup.vc.homePage.HomePageActivity;
import com.facebook.FacebookSdk;
import bolts.AppLinks;
import de.greenrobot.event.EventBus;
/**
 * Copyright © 2016 Dihardja Software Solutions. All rights reserved.
 */
public class LoginMainPageActivity extends AppCompatActivity {
    LoginMainPageFragment loginMainPageFragment;
    SignInFragment signInFragment;
    SignUpFragment signUpFragment;
    ForgotPasswordFragment forgotPasswordFragment;
    FragmentManager fragmentManager;
    FrameLayout containerRootFrameLayout;
    public final int LOGIN_FRAGMENT = 1;
    public final int SIGNIN_FRAGMENT = 2;
    public final int SIGNUP_FRAGMENT = 3;
    public final int FORGOTPASSWORD_FRAGMENT = 4;
    boolean isEligibleToTakePicture = false;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login_main_page);
        if (SettingsManager.getInstance().getCurrentUser() != null) {
            Intent i = new Intent(this, HomePageActivity.class);
            startActivity(i);
            finish();
            return;
        } else {
            if (!EventBus.getDefault().isRegistered(this)) {
                EventBus.getDefault().register(this);
            }
            containerRootFrameLayout = (FrameLayout) findViewById(R.id.loginContainerRootFrameLayout);
            fragmentManager = getSupportFragmentManager();

            loginMainPageFragment = new LoginMainPageFragment();
            signInFragment = new SignInFragment();
            signUpFragment = new SignUpFragment();
            forgotPasswordFragment = new ForgotPasswordFragment();

            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                Window window = getWindow();
                window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                window.setStatusBarColor(Color.parseColor("#4B76A9"));
            }
            initView();
            containerRootFrameLayout.setBackground(InterfaceManager.sharedInstance().getBackgroundAnimation());
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_PHONE_STATE) != PackageManager.PERMISSION_GRANTED ) {
                ActivityCompat.requestPermissions(this,
                        new String[]{Manifest.permission.READ_PHONE_STATE},
                        2);
                return;
            }
            else {
                registerDeviceId();
            }
        }
        FacebookSdk.sdkInitialize(getApplicationContext());
        Uri targetUrl = AppLinks.getTargetUrlFromInboundIntent(this, getIntent());
        if(targetUrl!=null){
            Log.v("Activity", "App Link Target Url: " + targetUrl.toString());
        }
    }
    @Override
    public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        switch (requestCode){
            case 0:
                int flag=0;
                if(grantResults.length>0){
                    for(int i=0; i<grantResults.length; i++){
                        if(grantResults[i] == PackageManager.PERMISSION_GRANTED){
                            flag++;
                        }
                    }
                    Log.v("login_flag", flag+"");
                    if(flag==permissions.length){
                        isEligibleToTakePicture = true;
                    }else{
                        isEligibleToTakePicture = false;
                    }
                    EventBus.getDefault().post(new AddPicturePermissionEvent(isEligibleToTakePicture, requestCode));
                }
                break;
            case 1:
                if(grantResults.length>0) {
                    if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                        isEligibleToTakePicture = true;
                    }else{
                        isEligibleToTakePicture = false;
                    }
                    EventBus.getDefault().post(new AddPicturePermissionEvent(isEligibleToTakePicture, requestCode));
                }
                break;
        }
    }
    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
    }
    public void initView() {
        fragmentManager.beginTransaction()
                .replace(R.id.loginContainerRootFrameLayout, loginMainPageFragment)
                .commit();
    }
    public void onEvent(LoginMainPageBackButtonTapped event) {
        initView();
    }
    @Override
    public void onBackPressed() {
        if (SettingsManager.getInstance().getCurrentFragment() == LOGIN_FRAGMENT) {
            super.onBackPressed();
            finish();
        }else if (SettingsManager.getInstance().getCurrentFragment() == FORGOTPASSWORD_FRAGMENT){
            fragmentManager.beginTransaction()
                    .replace(R.id.loginContainerRootFrameLayout, signInFragment)
                    .commit();
            SettingsManager.getInstance().setCurrentFragment(SIGNIN_FRAGMENT);
        }else {
            fragmentManager.beginTransaction()
                    .replace(R.id.loginContainerRootFrameLayout, loginMainPageFragment)
                    .commit();
            SettingsManager.getInstance().setCurrentFragment(LOGIN_FRAGMENT);
        }
    }
    public void registerDeviceId(){
        TelephonyManager telephonyManager = (TelephonyManager)getSystemService(Context.TELEPHONY_SERVICE);
        String deviceId = "";
        if(telephonyManager.getDeviceId()!=null){
            deviceId = telephonyManager.getDeviceId();
        }else{
            deviceId = Settings.Secure.getString(getApplicationContext().getContentResolver(), Settings.Secure.ANDROID_ID);
        }
        if(!deviceId.equalsIgnoreCase("")) {
            SettingsManager.getInstance().setDeviceId(deviceId);
        }
    }
    @Override
    public void onDestroy(){
        super.onDestroy();
        if(EventBus.getDefault().isRegistered(this)) {
            EventBus.getDefault().unregister(this);
        }
    }
}