com.renjunzheng.vendingmachine.SplashScreen.java Source code

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Here is the source code for com.renjunzheng.vendingmachine.SplashScreen.java

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/**
 * Copyright 2015 Google Inc. All Rights Reserved.
 *
 * 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.renjunzheng.vendingmachine;

import android.app.ActionBar;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.preference.PreferenceManager;
import android.support.v4.content.LocalBroadcastManager;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.ProgressBar;
import android.widget.TextView;
import android.os.Handler;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GoogleApiAvailability;

public class SplashScreen extends AppCompatActivity {

    private static final int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;
    private static final String TAG = "MainActivity";

    private BroadcastReceiver mRegistrationBroadcastReceiver;
    //private ProgressBar mRegistrationProgressBar;
    //private TextView mInformationTextView;
    private boolean isReceiverRegistered;

    private static int SPLASH_TIME_OUT = 2000;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        /*View decorView = getWindow().getDecorView();
        // Hide the status bar.
        int uiOptions = View.SYSTEM_UI_FLAG_FULLSCREEN;
        decorView.setSystemUiVisibility(uiOptions);*/
        setContentView(R.layout.activity_splash_screen);

        //mRegistrationProgressBar = (ProgressBar) findViewById(R.id.registrationProgressBar);
        mRegistrationBroadcastReceiver = new BroadcastReceiver() {
            @Override
            public void onReceive(Context context, Intent intent) {
                //mRegistrationProgressBar.setVisibility(ProgressBar.GONE);
                SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
                boolean sentToken = sharedPreferences.getBoolean(QuickstartPreferences.SENT_TOKEN_TO_SERVER, false);
                if (sentToken) {
                    //mInformationTextView.setText(getString(R.string.gcm_send_message));
                } else {
                    //mInformationTextView.setText(getString(R.string.token_error_message));
                }
            }
        };
        //mInformationTextView = (TextView) findViewById(R.id.informationTextView);

        // Registering BroadcastReceiver
        registerReceiver();

        if (checkPlayServices()) {
            // Start IntentService to register this application with GCM.
            Intent intent = new Intent(this, RegistrationIntentService.class);
            startService(intent);
        }
    }

    @Override
    protected void onResume() {
        super.onResume();
        registerReceiver();
        new Handler().postDelayed(new Runnable() {

            /*
             * Showing splash screen with a timer. This will be useful when you
             * want to show case your app logo / company
             */

            @Override
            public void run() {
                // This method will be executed once the timer is over
                // Start your app main activity

                Boolean logged_in = PreferenceManager.getDefaultSharedPreferences(getApplicationContext())
                        .getBoolean("user_logged_in", false);
                //at least I think for this logged_in value, only when the user starts this app really for the first time it will take the false value.
                //other case if the user logged out it will take false value, there are no other case it will be false I believe
                if (logged_in) {
                    Intent i = new Intent(SplashScreen.this, VMSelection.class);
                    startActivity(i);
                } else {
                    Intent i = new Intent(SplashScreen.this, LoginScreen.class);
                    startActivity(i);
                }
                // close this activity
                finish();
            }
        }, SPLASH_TIME_OUT);

    }

    @Override
    protected void onPause() {
        LocalBroadcastManager.getInstance(this).unregisterReceiver(mRegistrationBroadcastReceiver);
        isReceiverRegistered = false;
        super.onPause();
    }

    private void registerReceiver() {
        if (!isReceiverRegistered) {
            LocalBroadcastManager.getInstance(this).registerReceiver(mRegistrationBroadcastReceiver,
                    new IntentFilter(QuickstartPreferences.REGISTRATION_COMPLETE));
            isReceiverRegistered = true;
        }
    }

    /**
     * Check the device to make sure it has the Google Play Services APK. If
     * it doesn't, display a dialog that allows users to download the APK from
     * the Google Play Store or enable it in the device's system settings.
     */
    private boolean checkPlayServices() {
        GoogleApiAvailability apiAvailability = GoogleApiAvailability.getInstance();
        int resultCode = apiAvailability.isGooglePlayServicesAvailable(this);
        if (resultCode != ConnectionResult.SUCCESS) {
            if (apiAvailability.isUserResolvableError(resultCode)) {
                apiAvailability.getErrorDialog(this, resultCode, PLAY_SERVICES_RESOLUTION_REQUEST).show();
            } else {
                Log.i(TAG, "This device is not supported.");
                finish();
            }
            return false;
        }
        return true;
    }

}