com.feedhenry.armark.MainActivity.java Source code

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Here is the source code for com.feedhenry.armark.MainActivity.java

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/**
 * Copyright 2015 Red Hat, Inc., and individual contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.feedhenry.armark;

import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.support.design.widget.TabLayout;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.support.v4.view.ViewPager;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.Toolbar;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;

import com.facebook.AccessToken;
import com.facebook.FacebookSdk;
import com.facebook.appevents.AppEventsLogger;
import com.facebook.login.LoginManager;
import com.feedhenry.armark.fragmentos.Almacen_fragment;
import com.feedhenry.armark.fragmentos.Categorias_fragment;
import com.feedhenry.armark.fragmentos.Promociones_fragment;

public class MainActivity extends AppCompatActivity {

    public static final String TAG = "TAG";
    private String varControl = null;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main_activity);

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        //inicializador de api de facebook
        FacebookSdk.sdkInitialize(getApplicationContext());
        AppEventsLogger.activateApp(this);

        //  adaptador para los fragmentos
        SeccionPageradapter seccionPageradapter1 = new SeccionPageradapter(getSupportFragmentManager(),
                MainActivity.this);

        // Set up the ViewPager with the sections adapter.
        ViewPager mViewPager = (ViewPager) findViewById(R.id.container);
        assert mViewPager != null;
        mViewPager.setAdapter(seccionPageradapter1);
        mViewPager.setOffscreenPageLimit(0); //  Guarda la cantidad (int 0)de fragment que esta en el viewPager.  este caso es 0, las destruye de una todas las posiciones de fragment

        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
        assert tabLayout != null;
        tabLayout.setupWithViewPager(mViewPager);

        Inicio_feedHenry_sdk iniciar = new Inicio_feedHenry_sdk();
        iniciar.InicializarFH(getApplicationContext());

    }

    @Override
    protected void onPostResume() {
        super.onPostResume();
        if (AccessToken.getCurrentAccessToken() == null) {
            goLogin();
            Log.e("error", "no debo entrar aqui");
        }
    }

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

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.accion_actualizar) {
            Inicio_feedHenry_sdk iniciar = new Inicio_feedHenry_sdk();
            iniciar.InicializarFH(getApplicationContext());

            return true;
        }
        if (id == R.id.accion_cerrarsesion) {

            // cerramos cesion con cuenta de facebook
            if (AccessToken.getCurrentAccessToken() != null) { //  si esto es null quiere decir que no tenemos la seccion iniciada
                LoginManager.getInstance().logOut();
                goLogin();

            }

            return true;
        }

        return super.onOptionsItemSelected(item);
    }

    @Override
    public void onStart() {
        super.onStart();

    }

    @Override
    public void onStop() {
        super.onStop();
        // FH.stop();
    }

    private void goLogin() {
        Intent intent = new Intent(this, Loggin.class);

        // AADIMOS banderas que nos permite limpiar el recorrido anterior, cuando presionemos atras no nos devuelve al MainActivity.
        intent.addFlags(
                Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);

    }

    //**********************INICIO************************************************************************************************
    public class SeccionPageradapter extends FragmentStatePagerAdapter {
        final int PAGE_COUNT = 3;
        private Context context;

        public SeccionPageradapter(FragmentManager fm, Context context) {
            super(fm);
            this.context = context;
        }

        @Override
        public Fragment getItem(int position) {
            //PaginaActual = position;

            switch (position) {
            case 0:

                return Promociones_fragment.newInstance(position + 1, null, null);

            case 1:

                return Almacen_fragment.newInstance(position + 2);

            case 2:
                return Categorias_fragment.newInstance(position + 3);

            default:
                return null;

            }

        }

        @Override
        public int getCount() {
            return PAGE_COUNT;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
            case 0:
                return "Promociones";
            case 1:
                return "Almacen";
            case 2:
                return "Categorias";
            }
            return null;
        }
    }
    //*************************************************************************************************************************

}