Android Open Source - Aspose_for_Android Aspose Converter Activity

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License

The source code is released under:

MIT License

Java Source Code

package com.aspose.cells.android;
/*ww w.  j  a v a 2 s .  c  o  m*/
import java.io.File;

import com.aspose.cells.Workbook;
import com.aspose.cells.android.common.BrowseFileActivity;
import com.aspose.cells.android.common.SupportedFormat;

import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Environment;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.view.View;

import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

public class AsposeConverterActivity extends Activity
{
  //======================================================================
  @Override
  protected void onCreate(Bundle savedInstanceState)
  {
    //BasicConfigurator.configure();
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_aspose_converter);

    initialize();

    //==================================================================
    btn_browse.setOnClickListener(new View.OnClickListener() 
    {
      @Override
      public void onClick(View arg0)
      {
        startActivityForResult(new Intent(AsposeConverterActivity.this, BrowseFileActivity.class), PATH);
      }
    });
    //==================================================================
    spinner_format.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() 
    {
      @Override
      public void onItemSelected(AdapterView<?> prent, View view, int position, long id)
      {
        outputFormat = SupportedFormat.formatValues[position];
        outputExt = SupportedFormat.formats[position];
      }

      @Override
      public void onNothingSelected(AdapterView<?> arg0)
      {
        Toast.makeText(AsposeConverterActivity.this, "Please Select Save Format", Toast.LENGTH_LONG).show();
      }
    });
    //==================================================================
    btn_convert.setOnClickListener(new View.OnClickListener() 
    {
      @Override
      public void onClick(View arg0)
      {
          new LocalFileConverterTask().execute();
      }
    });
  }

  //======================================================================
  /**
   * AsyncTask to convert the provided file in provided format if supported. 
   */
  class LocalFileConverterTask extends AsyncTask<String, Integer, Boolean>
  {
    String inputPath;
    String outputPath;
    String outputFileName;
    ProgressDialog progDialog;

    @Override
    protected void onPreExecute()
    {
      showProgressDialog();

      inputPath = tv_inputPath.getText().toString();
      outputFileName = inputPath.substring(inputPath.lastIndexOf('/') + 1, inputPath.lastIndexOf('.')) + "." + outputExt;
      outputPath = getFileSaveLocation() + outputFileName;
    }
    
    //==================================================================
    @Override
    protected Boolean doInBackground(String... params)
    {
      try
      {
//        Document doc = new Document(inputPath);        
//        doc.save(outputPath, outputFormat);
        
        Workbook workbook = new Workbook(inputPath);

        //Save the document in PDF format
        workbook.save(outputPath, outputFormat);
        
        return true;
      }
      catch (Exception e)
      {
        e.printStackTrace();
        return false;
      }
    }

    //==================================================================
    @Override
    protected void onPostExecute(Boolean result)
    {
      if (result)
      {
        Toast.makeText(getApplicationContext(), "Conversion Successful.", Toast.LENGTH_SHORT).show();
        tv_result.setText(  "File converted and saved as \"" + outputPath + "\"");
      }
      else
      {
        Toast.makeText(getApplicationContext(), "Conversion Failed.", Toast.LENGTH_SHORT).show();
        tv_result.setText(R.string.msg_oops);
      }
      progDialog.dismiss();
    }

    //==================================================================
    private void showProgressDialog()
    {
      progDialog = new ProgressDialog(AsposeConverterActivity.this);
      progDialog.setMessage("Converting your document...");
      progDialog.setIndeterminate(false);
      progDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
      progDialog.setCancelable(true);
      progDialog.show();
    }
  }

  //======================================================================
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data)
  {
    if (requestCode == PATH)
    {
      if (resultCode == RESULT_OK)
      {
        String path = data.getStringExtra("path");
        if (path == null)
        {
          Toast.makeText(AsposeConverterActivity.this, "Path Not Found", Toast.LENGTH_LONG).show();
          btn_convert.setEnabled(false);
        }
        else
        {
          tv_inputPath.setText(path);
          btn_convert.setEnabled(true);
        }
      }
    }
  }

  //======================================================================
  /**
   * Initialized the basic need for conversion activity
   */
  private void initialize()
  {
    new SupportedFormat().setFormats();
    
    //======= UI Controls ==================================
    tv_result = (TextView) findViewById(R.id.tv_result);
    tv_inputPath = (TextView) findViewById(R.id.input_path);
    btn_browse = (Button) findViewById(R.id.btn_browse);
    btn_convert = (Button) findViewById(R.id.btn_convert);

    spinner_format = (Spinner) findViewById(R.id.format_spinner);
    
    spinner_format.setAdapter(
        new ArrayAdapter<String>(AsposeConverterActivity.this, 
        android.R.layout.simple_list_item_1, 
        SupportedFormat.formats));

    outputFormat = SupportedFormat.formatValues[0];
    outputExt = SupportedFormat.formats[0];
  }

  //======================================================================
  /**
   * Sets the location to save the converted files.
   */
  private String getFileSaveLocation()
  {
    String sdCardPath = Environment.getExternalStorageDirectory().getPath()+ File.separator + OUTPUT_FOLDER + File.separator;
    System.out.println("sdCardPath: " + sdCardPath);
    return sdCardPath;
  }
  //======================================================================
  
  // Class Variables
  TextView tv_inputPath;
  TextView tv_result;
  Button btn_browse;
  Button btn_convert;
  Spinner spinner_format;

  int outputFormat; // format for the converted file
  String outputExt; // file extension for output file.

  protected static final int PATH = 1;
  protected static final String OUTPUT_FOLDER = "AsposeFiles";
}

Java Source Code List

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