Android Open Source - OrzEye Splash Activity

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Back to project page OrzEye.

License

The source code is released under:

GNU General Public License

Java Source Code

package com.dylan.orzeye;
/*from  w ww.  j  a v  a2s. c om*/
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.lang.ref.WeakReference;

import android.os.Bundle;
import android.os.Environment;
import android.os.Handler;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.view.Window;

public class SplashActivity extends Activity {
  public final static String SD_PATH = Environment
      .getExternalStorageDirectory().toString() ;
  public static  String APP_PATH = SD_PATH + "/OrzEye";;
  public static final String OCR_DATA_PATH = APP_PATH + "/tessdata/";;
  public static final String DIC_DATA_PATH = APP_PATH + "/dictionary/";

  private final String DIC_DATA_FILENAME = "dictionary.db";
  private final String OCR_DATA_FILENAME = "eng.traineddata";


  private final int SPLASH_DISPLAY_LENGHT = 3000;
  private boolean isOCRDataExisted = false;
  private boolean isDictionaryDataExisted = false;
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_splash);
    // TODO need to be refined
    SQLiteDatabase db = openOrCreateDatabase("OrzEye.db", Context.MODE_PRIVATE, null);
    db.execSQL("CREATE TABLE IF NOT EXISTS notes (_id INTEGER PRIMARY KEY AUTOINCREMENT, word VARCHAR, tanslation VARCHAR)");
    
    if (isDataFileExisted()) {
      new Handler().postDelayed(new Runnable() {

        @Override
        public void run() {
          Intent mainIntent = new Intent(SplashActivity.this,
              CameraActivity.class);
          SplashActivity.this.startActivity(mainIntent);
          SplashActivity.this.finish();
        }
      }, SPLASH_DISPLAY_LENGHT);
    } else {
      final ProgressDialog dialog = new ProgressDialog(this);
      dialog.setTitle(getString(R.string.installdata_msg));
      dialog.setMessage(getString(R.string.waiting_msg));
      dialog.show();
      final UpdateUIHandler handler = new UpdateUIHandler(dialog, SplashActivity.this);

      Thread thread = new Thread(new Runnable() {

        @Override
        public void run() {
          installDataFile();
          handler.sendEmptyMessage(0);
          Intent mainIntent = new Intent(SplashActivity.this,
              CameraActivity.class);
          SplashActivity.this.startActivity(mainIntent);
          SplashActivity.this.finish();
        }
      });
      thread.start();
    }
  }

  private void installDataFile() {
    if (!(new File(APP_PATH)).exists()) {
      (new File(APP_PATH)).mkdir();
    }

    if (!isOCRDataExisted) {
      copyDataFileToAppFolder(OCR_DATA_PATH, OCR_DATA_FILENAME, R.raw.eng);
    }

    if (!isDictionaryDataExisted) {
      copyDataFileToAppFolder(DIC_DATA_PATH, DIC_DATA_FILENAME,
          R.raw.dictionary);
    }
  }

  private boolean isDataFileExisted() {
    if ((new File(OCR_DATA_PATH + OCR_DATA_FILENAME)).exists()) {
      isOCRDataExisted = true;
    }

    if ((new File(DIC_DATA_PATH + DIC_DATA_FILENAME)).exists()) {
      isDictionaryDataExisted = true;
    }

    return isOCRDataExisted && isDictionaryDataExisted;
  }

  private void copyDataFileToAppFolder(String filePath, String fileName,
      int source) {
    if (!(new File(filePath)).exists()) {
      (new File(filePath)).mkdir();
    }

    try {
      InputStream is = getResources().openRawResource(source);
      FileOutputStream fos;
      fos = new FileOutputStream(filePath + fileName);
      byte[] buffer = new byte[8192];
      int count = 0;
      while ((count = is.read(buffer)) > 0) {
        fos.write(buffer, 0, count);
      }
      fos.close();
      is.close();
    } catch (FileNotFoundException e) {
      e.printStackTrace();
    } catch (IOException e) {
      e.printStackTrace();
    }

  }

  @Override
  public void onBackPressed() {
    // do nothing
  }

  static class UpdateUIHandler extends Handler {
    private ProgressDialog dialog;
    WeakReference<SplashActivity> mActivity;
    
    UpdateUIHandler(ProgressDialog dialog, SplashActivity activity) {
      this.dialog = dialog;
      mActivity = new WeakReference<SplashActivity>(activity);
    }
    public void handleMessage(android.os.Message msg) {
      if(dialog != null) {
        dialog.cancel();
      }
    }
  
  }
}

Java Source Code List

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