Android Open Source - Common-Alerting-Protocol-Compliant-Emergency-Warning-App-For-Android-Using-AMQP Alert List Fragment

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License

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Java Source Code

package in.ac.iitd.cse.iuatc.ews;
//from   w  w  w  . ja  va 2s.co  m
import java.util.ArrayList;
import java.util.Locale;
import java.util.concurrent.locks.Lock;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.speech.tts.TextToSpeech;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.ContextMenu;
import android.view.ContextMenu.ContextMenuInfo;
import android.view.Gravity;
import android.view.LayoutInflater;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.AdapterContextMenuInfo;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.Button;
import android.widget.ListView;
import android.widget.PopupWindow;
import android.widget.TextView;
import android.widget.Toast;

import com.memetix.mst.MicrosoftTranslatorAPI;
import com.memetix.mst.language.Language;
import com.memetix.mst.translate.Translate;

public class AlertListFragment extends Fragment implements OnItemClickListener,
    TextToSpeech.OnInitListener {

  private static final String TAG = "ALERTLISTFRAG";

  
  private AlertsListAdapter adapter = null;
  private ArrayList<SimpleAlert> alerts = null;
  private ListView listView;
  private TextToSpeech tts;
  private TextView translationPopupTextView;
  private PopupWindow popupWindow;
  private View view;
  private EwsApplication ewsApplication;
  
  @Override
  public void onActivityCreated(Bundle savedInstanceState) {
    Log.v(TAG,"onActivityCreated");
    super.onActivityCreated(savedInstanceState);
  }

  @Override
  public void onAttach(Activity activity) {
    Log.v(TAG,"onAttach");
    // TODO Auto-generated method stub
    super.onAttach(activity);
  }

  @Override
  public void onDestroyView() {
    Log.v(TAG,"onDestroyView");
    super.onDestroyView();
  }

  @Override
  public void onDetach() {
    Log.v(TAG,"onDetach");
    // TODO Auto-generated method stub
    super.onDetach();
  }

  @Override
  public void onStart() {
    Log.v(TAG,"onStart");
    // TODO Auto-generated method stub
    super.onStart();
  }

  @Override
  public void onStop() {
    Log.v(TAG,"onStop");
    // TODO Auto-generated method stub
    super.onStop();
  }

  @Override
  public void onViewStateRestored(Bundle savedInstanceState) {
    Log.v(TAG,"onViewStateRestored");
    super.onViewStateRestored(savedInstanceState);
  }


  @Override
  public void onCreate(Bundle savedInstanceState) {
    Log.v(TAG,"onCreate");
    super.onCreate(savedInstanceState);
    alerts = new ArrayList<SimpleAlert>();
    this.adapter = new AlertsListAdapter(getActivity(), R.layout.list_row,this.alerts);
    new LoadAlertsFromDatabaseTask().execute();
    ewsApplication = (EwsApplication)(getActivity().getApplicationContext());
    ewsApplication.alertListFragment=this;
  }

  private class LoadAlertsFromDatabaseTask extends AsyncTask<Void, Integer, Void> {
    
    ProgressDialog progressDialog;
    Lock lock;
    
    @Override
    protected void onPreExecute() {
      this.progressDialog = ProgressDialog.show(getActivity(),
          "Loading alerts", "Please Wait", true);
    };

    @Override
    protected Void doInBackground(Void... params) {
      lock = ewsApplication.getLock();
      if(!lock.tryLock()) {
        do {
          try { Thread.sleep(100);} catch (InterruptedException e) { }
        } while (!lock.tryLock());
      }
      Utils.getAlertsFromDataBase(getActivity(),alerts);
      ewsApplication.alertListFragment=AlertListFragment.this;
      lock.unlock();
      return null;
    }
    
    @Override
    protected void onPostExecute(Void result) {
      super.onPostExecute(result);
      adapter.notifyDataSetChanged();
      this.progressDialog.dismiss();
    }

  }
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
      Bundle savedInstanceState) {
    Log.v(TAG,"onCreateView");
    this.view = inflater.inflate(R.layout.alert_list_fragment, null);
    this.listView = (ListView) this.view.findViewById(R.id.listView1);

    this.listView.setAdapter(this.adapter);
    this.listView.setOnItemClickListener(this);
    registerForContextMenu(this.listView);

    this.listView
        .setEmptyView(this.view.findViewById(R.id.empty_list_item));

    return this.view;
  }

  @Override
  public void onPause() {
    Log.v(TAG,"onPause");
    if (this.tts != null) {
      this.tts.stop();
      this.tts.shutdown();
    }
    super.onPause();
  }

  @Override
  public void onResume() {
    Log.v(TAG,"onResume");
    super.onResume();
    this.tts = new TextToSpeech(getActivity(), this);
    this.adapter.notifyDataSetChanged();
  }

  @Override
  public void onCreateContextMenu(ContextMenu menu, View v,
      ContextMenuInfo menuInfo) {
    super.onCreateContextMenu(menu, v, menuInfo);
    MenuInflater inflater = getActivity().getMenuInflater();
    inflater.inflate(R.menu.alert_list_menu, menu);
  }

  @Override
  public boolean onContextItemSelected(MenuItem item) {
    AdapterContextMenuInfo info = (AdapterContextMenuInfo) item
        .getMenuInfo();
    String text = this.adapter.getItem(info.position).getHeadline();
    switch (item.getItemId()) {
    case R.id.tts:
      this.tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
      return true;
    case R.id.send_via_sms:
      Intent sendIntent = new Intent(Intent.ACTION_VIEW);
      sendIntent.putExtra("sms_body", text);
      sendIntent.setType("vnd.android-dir/mms-sms");
      startActivity(sendIntent);
      return true;
    case R.id.translate_to_hindi:
      translateAndShowPopup(text);
      return true;
    default:
      return super.onContextItemSelected(item);
    }
  }

  @Override
  public void onItemClick(AdapterView<?> parent, View view, int position,
      long id) {
    // ((MainActivityTest) getActivity()).mIndicator.notifyDataSetChanged();
    Intent showAlert = new Intent(getActivity(), DetailActivity.class);
    showAlert.putExtra("ALERT", this.alerts.get(position));
    startActivity(showAlert);
  }

  @Override
  public void onDestroy() {
    Log.v(TAG,"onDestroy");
    super.onDestroy();
    ewsApplication.alertListFragment=null;
  }

  @Override
  public void onInit(int status) {

    if (status == TextToSpeech.SUCCESS) {

      int result = this.tts.setLanguage(Locale.US);

      if ((result == TextToSpeech.LANG_MISSING_DATA)
          || (result == TextToSpeech.LANG_NOT_SUPPORTED)) {
        Log.e("TTS", "This Language is not supported");
      }
    } else {
      Log.e("TTS", "Initilization Failed!");
    }

  }

  public void translateAndShowPopup(String text) {
    LayoutInflater inflater = (LayoutInflater) getActivity()
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View popupView = inflater.inflate(R.layout.translation_popup, null);
    this.translationPopupTextView = (TextView) popupView
        .findViewById(R.id.translated_text);
    this.translationPopupTextView.setText("Translating....");
    this.popupWindow = new PopupWindow(popupView,
        LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
    Button btnDismiss = (Button) popupView.findViewById(R.id.dismiss);
    btnDismiss.setOnClickListener(new Button.OnClickListener() {
      @Override
      public void onClick(View v) {
        AlertListFragment.this.popupWindow.dismiss();
      }
    });

    Button btnHindiSpeak = (Button) popupView
        .findViewById(R.id.btnHindiSpeak);
    btnHindiSpeak.setOnClickListener(new Button.OnClickListener() {
      @Override
      public void onClick(View v) {

        Locale s[] = Locale.getAvailableLocales();
        int i = 0;
        for (i = 0; i < s.length; i++) {
          if (s[i].getLanguage().equalsIgnoreCase("hi")) {
            break;
          }
        }

        int result = AlertListFragment.this.tts.setLanguage(s[i]);

        if ((result == TextToSpeech.LANG_MISSING_DATA)
            || (result == TextToSpeech.LANG_NOT_SUPPORTED)) {
          Log.e("TTS", "This Language is not supported");

          Toast.makeText(getActivity()
              .getApplicationContext(),
              "You do not have epeakTTS App installed."
                  + "Please install it from Google Play.",
              Toast.LENGTH_LONG).show();

        } else {

          AlertListFragment.this.tts
              .speak(AlertListFragment.this.translationPopupTextView
                  .getText().toString(),
                  TextToSpeech.QUEUE_FLUSH, null);
        }

        AlertListFragment.this.tts.setLanguage(Locale.US);

      }
    });

    final TranslateTask translateTask = new TranslateTask();
    translateTask.execute(text);
    android.os.Handler handler = new android.os.Handler();
    handler.postDelayed(new Runnable() {
      @Override
      public void run() {
        if (translateTask.getStatus() == AsyncTask.Status.RUNNING) {
          translateTask.cancel(true);
        }
      }
    }, 40000);
  }

  public String translate(String text) throws Exception {
    MicrosoftTranslatorAPI.setClientId("IU-ATC");
    MicrosoftTranslatorAPI
        .setClientSecret("lA+jVp79EagWlz69x/qAuz6wZgmf1aDfj23z/tZ25OA=");
    String translatedText = "";
    translatedText = Translate.execute(text, Language.HINDI);
    return translatedText;
  }

  class TranslateTask extends AsyncTask<String, Void, Void> {
    ProgressDialog progressDialog;
    String translatedText = "";
    boolean error = false;

    @Override
    protected void onPreExecute() {
      this.progressDialog = ProgressDialog.show(getActivity(),
          "Translating", "Please Wait", true);

    };

    @Override
    protected Void doInBackground(String... params) {
      try {
        String text = params[0];
        if (!text.equalsIgnoreCase("")) {
          this.translatedText = translate(text);
        } else {
          this.translatedText = "No Input!!!";
        }
      } catch (Exception e) {
        this.translatedText = "No network connection !!";
        this.error = true;
        return null;
      }

      return null;
    }

    @Override
    protected void onCancelled(Void result) {
      this.progressDialog.dismiss();
      Toast.makeText(getActivity().getApplicationContext(),
          "No network connection !!", Toast.LENGTH_LONG).show();
    }

    @Override
    protected void onPostExecute(Void result) {
      super.onPostExecute(result);
      this.progressDialog.dismiss();
      if (this.error) {
        Toast.makeText(getActivity(),
            this.translatedText, Toast.LENGTH_LONG).show();
      } else {
        AlertListFragment.this.translationPopupTextView.setText(this.translatedText);
        AlertListFragment.this.popupWindow.showAtLocation(
            AlertListFragment.this.listView, Gravity.CENTER, 0, 0);
      }
    }

  }

  public void addAlert(SimpleAlert simpleAlert) {
    if(alerts!=null && adapter!=null) {
      alerts.add(0,simpleAlert);
      if(this.isResumed()) {
        adapter.notifyDataSetChanged();
      }
    }
  }

}
Java Source Code List
