Android Open Source - AndroidHandsOn Main Activity

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Back to project page AndroidHandsOn.

License

The source code is released under:

Apache License

Java Source Code

package com.globant.mobile.handson;
/*  ww w .  j a  va2  s  .co m*/
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;

import android.annotation.SuppressLint;
import android.content.Intent;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;

public class MainActivity extends BaseActivity {

  /**
   * Static Attributes
   */
  public static final String   EXTRA_MESSAGE = "com.globant.mobile.handson.MESSAGE";
  private static final int CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE = 100;
  private static final int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 200;
  private static final int MEDIA_TYPE_IMAGE = 1;
  private static final int MEDIA_TYPE_VIDEO = 2;
  private static final String ALBUM_NAME = "HandsOn";
  /**
   * Private Attributes
   */
  private File storageDir;  
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    // Show the Up button in the action bar.
    setupActionBar();
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }
  
  @Override
  public boolean onOptionsItemSelected(MenuItem item){
    //Handle presses on the action bar items
    switch(item.getItemId()){
      case R.id.action_settings:{
        //openSettings();
        return true;
      }
      case R.id.action_search:{
        //openSearch();
        return true;
      }
      default:{
        return super.onOptionsItemSelected(item);
      }
    }
  }
  
  /**
   * Opens the Display Message activity
   * @param view
   */
  public void sendMessage(View view){
    /*String message = null;
    
    Intent intent = new Intent(this, DisplayMessageActivity.class);
    
    EditText editText = (EditText)findViewById(R.id.edit_message);
    message = editText.getText().toString();
    intent.putExtra(EXTRA_MESSAGE, message);
    
    startActivity(intent);*/
  }  
  /**
   * Opens the Custom Camera activity 
   * @param view
   */
  public void dispatchTakePictureInternal(View view){
    Intent intent = new Intent(this, CameraActivity.class);
    startActivity(intent);
  }
  /**
   * Opens the featured camera activity (External Activity)
   * @param view
   */
  public void dispatchTakePictureExternal(View view){
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);    
    try{
      intent.putExtra(MediaStore.EXTRA_OUTPUT, createImageFile(MEDIA_TYPE_IMAGE));    
      startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);
    } catch(IOException ioex){
      Toast.makeText(this, "Error: " + ioex.getMessage(), Toast.LENGTH_LONG).show();
    }
  }
  /**
   * Opens the Gallery activity
   * @param view
   */
  public void dispatchGallery(View view){
    Intent intent = new Intent(this, GalleryActivity.class);
    startActivity(intent);
  }
  /**
   * Creates the file for the taken image
   * @return Image File for storage
   * @throws IOException
   */
  @SuppressLint("SimpleDateFormat")
  private File createImageFile(int type) throws IOException{
    File image = null;
    //Get the time stamp for the file's name
    String imageFileName = null;
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    
    if(type == MEDIA_TYPE_IMAGE){
      //Set the storage directory
      storageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES), ALBUM_NAME);
      initStorageDir();
      //Create and image file name
      imageFileName = "IMG_" + timeStamp;
      image = new File(storageDir.getPath() + File.separator + imageFileName + ".jpg");
    }else if(type == MEDIA_TYPE_VIDEO){
      //Set the storage directory
      storageDir = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_MOVIES), ALBUM_NAME);
      initStorageDir();
      //Create and image file name
      imageFileName = "VID_" + timeStamp;
      image = new File(storageDir.getPath() + File.separator + imageFileName + ".mp4");
    }
    
    return image;
  }
  
  private void initStorageDir() throws IOException{    
    String state = Environment.getExternalStorageState();
    //Checks if the external storage is mounted
    if(Environment.MEDIA_MOUNTED.equals(state)){
      if(!storageDir.exists()){
        if(!storageDir.mkdirs()){
          Log.d("HandsOn", "Failed to create directory");
        }
      }
    }else if(Environment.MEDIA_MOUNTED_READ_ONLY.equals(state)){
      //External storage mounted but read only, can't write on it
      throw new IOException("External memory in READ ONLY mode");
    }else{
      //External storage not available/mounted/etc
      throw new IOException("External memory not available");
    }
  }
  
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data){
    if(requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE){
      if(resultCode == RESULT_OK){
        //Image captured and saved to storageDir + createImageFile() specified in the Intent
        Toast.makeText(this, "Image saved on:\n" + data.getData(), Toast.LENGTH_LONG).show();
      }
    }
    
    if(requestCode == CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE){
      if(resultCode == RESULT_OK){
        //Image captured and saved to storageDir + createImageFile() specified in the Intent
        Toast.makeText(this, "Video saved on:\n" + data.getData(), Toast.LENGTH_LONG).show();
      }
    }
  }

}

Java Source Code List

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