Android Open Source - Android-App Main Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.cmbhack.crowdtrain;
/*w ww  . java 2 s. c  o m*/
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.atomic.AtomicInteger;

import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;

import com.cmbhack.crowdtrain.R;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.gcm.GoogleCloudMessaging;

import android.app.Activity;
import android.app.ActionBar;
import android.app.Fragment;
import android.content.Context;
import android.content.SharedPreferences;
import android.content.pm.PackageInfo;
import android.content.pm.PackageManager.NameNotFoundException;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Button;
import android.widget.TextView;
import android.os.Build;

public class MainActivity extends Activity {
  static final String TAG = "GCMDemo";

  private ContainerFragment mContainerFragment;
  private final static int PLAY_SERVICES_RESOLUTION_REQUEST = 9000;

  public static final String EXTRA_MESSAGE = "message";
  public static final String PROPERTY_REG_ID = "registration_id";
  private static final String PROPERTY_APP_VERSION = "appVersion";

  String SENDER_ID = "74505910852";

  TextView mDisplay;
  GoogleCloudMessaging gcm;
  AtomicInteger msgId = new AtomicInteger();
  SharedPreferences prefs;
  Context context;

  String regid;

  @Override
  protected void onResume() {
    super.onResume();
    if (mContainerFragment != null) {
      Bundle extras = getIntent().getExtras();
      if (extras != null) {
        String trainId = extras.getString("trainId", null);
        if (trainId != null) {
          mContainerFragment
              .setUrl("http://ko-train.meteor.com/train/"
                  + trainId);
          return;
        }
      }
    }
  }

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    context = getApplicationContext();

    if (savedInstanceState == null) {
      mContainerFragment = new ContainerFragment();
      getFragmentManager().beginTransaction()
          .add(R.id.container, mContainerFragment).commit();
      mContainerFragment.setUrl("https://ko-train.meteor.com");
    }
    gcm = GoogleCloudMessaging.getInstance(this);
    regid = getRegistrationId(context);

    if (regid.isEmpty()) {
      registerInBackground();
    } else {
      Log.d("CrowdTrain", regid);
    }
  }

  private String getRegistrationId(Context context) {
    final SharedPreferences prefs = getGCMPreferences(context);
    String registrationId = prefs.getString(PROPERTY_REG_ID, "");
    if (registrationId.isEmpty()) {
      return "";
    }
    int registeredVersion = prefs.getInt(PROPERTY_APP_VERSION,
        Integer.MIN_VALUE);
    int currentVersion = getAppVersion(context);
    if (registeredVersion != currentVersion) {
      return "";
    }
    return registrationId;
  }

  private SharedPreferences getGCMPreferences(Context context) {
    return getSharedPreferences(MainActivity.class.getSimpleName(),
        Context.MODE_PRIVATE);
  }

  private static int getAppVersion(Context context) {
    try {
      PackageInfo packageInfo = context.getPackageManager()
          .getPackageInfo(context.getPackageName(), 0);
      return packageInfo.versionCode;
    } catch (NameNotFoundException e) {
      throw new RuntimeException("Could not get package name: " + e);
    }
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }

  @Override
  public boolean onOptionsItemSelected(MenuItem item) {
    int id = item.getItemId();
    if (id == R.id.action_settings) {
      return true;
    }
    return super.onOptionsItemSelected(item);
  }

  public static class ContainerFragment extends Fragment {
    private WebView mMainWV;
    private String mUrl;

    public ContainerFragment() {

    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
        Bundle savedInstanceState) {
      View rootView = inflater.inflate(R.layout.fragment_main, container,
          false);
      mMainWV = (WebView) rootView.findViewById(R.id.MainWV);
      mMainWV.setWebViewClient(new WebViewClient());
      WebSettings settings = mMainWV.getSettings();
      settings.setJavaScriptEnabled(true);
      settings.setDomStorageEnabled(true);
      mMainWV.loadUrl(mUrl);
      return rootView;
    }

    public void setUrl(String url) {
      mUrl = url;
      if (mMainWV != null)
        mMainWV.loadUrl(url);
    }
  }

  private void registerInBackground() {
    RegisterAsyncTask task = new RegisterAsyncTask();
    task.execute(null, null, null);
  }

  public class RegisterAsyncTask extends AsyncTask<Void, Void, String> {

    @Override
    protected String doInBackground(Void... params) {
      String msg = "";
      try {
        if (gcm == null) {
          gcm = GoogleCloudMessaging.getInstance(context);
        }
        String regidNew = gcm.register(SENDER_ID);
        sendRegistrationIdToBackend(regidNew);
        storeRegistrationId(context, regidNew);
        Log.d("CrowdTrain", regidNew);
      } catch (IOException ex) {
        msg = "Error :" + ex.getMessage();
      }
      return msg;
    }

    private void storeRegistrationId(Context context, String regId) {
      regid = regId;
      final SharedPreferences prefs = getGCMPreferences(context);
      int appVersion = getAppVersion(context); 
      SharedPreferences.Editor editor = prefs.edit();
      editor.putString(PROPERTY_REG_ID, regId);
      editor.putInt(PROPERTY_APP_VERSION, appVersion);
      editor.commit();
    }

    private boolean sendRegistrationIdToBackend(String regId) {
      String server = "http://ko-train.meteor.com/collectionapi/androidsubs?registrationId=" +regId ;
      //String server = "http://192.168.123.105:3000/collectionapi/androidsubs?registrationId=" +regId ;

      try {
        HttpClient httpclient = new DefaultHttpClient();
        HttpGet httppost = new HttpGet(server);

       
        List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(
            1);
        //nameValuePairs.add(new BasicNameValuePair("registrationId",            regId));
        //httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs,            "UTF-8"));
        HttpResponse response = httpclient.execute(httppost); 
        String str= response.getStatusLine().toString();

      } catch (Exception e) {
        e.printStackTrace();
        return false;
      }
      return true;
    }

  }
}

Java Source Code List

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