Android Open Source - CSCI567---Workspace Default Nfc Tag Writer Activity

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MIT License
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Java Source Code

/***************************************************************************
 * /*from   w  w w . j  a va2s .c  o  m*/
 * This file is part of the 'NDEF Tools for Android' project at
 * http://code.google.com/p/ndef-tools-for-android/
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 ****************************************************************************/

package org.ndeftools.boilerplate;

import java.nio.charset.Charset;
import java.util.Locale;

import org.ndeftools.Message;
import org.ndeftools.boilerplate.R;
import org.ndeftools.util.activity.NfcTagWriterActivity;
import org.ndeftools.wellknown.TextRecord;

import android.nfc.NdefMessage;
import android.os.Bundle;
import android.view.Gravity;
import android.widget.Toast;


/**
 * 
 * Activity demonstrating the default implementation of the abstract tag writer activity. 
 * 
 * The activity uses a simple layout and displays some toast messages for various events.
 * 
 * @author Thomas Rorvik Skjolberg
 *
 */

public class DefaultNfcTagWriterActivity extends NfcTagWriterActivity {

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    
    setContentView(R.layout.writer);
    
    setDetecting(true);

  }
  
  /**
   * 
   * Create an NDEF message to be written when a tag is within range.
   * 
   * @return the message to be written
   */
  
  @Override
  protected NdefMessage createNdefMessage() {
    Message message = new Message();
    
    TextRecord textRecord = new TextRecord();
    textRecord.setText("This is my text");
    textRecord.setEncoding(Charset.forName("UTF-8"));
    textRecord.setLocale(Locale.ENGLISH);
    
    message.add(textRecord);
    
    return message.getNdefMessage();
  }
  
  /**
   * 
   * Writing NDEF message to tag failed.
   * 
   * @param e exception
   */
  
  @Override
  protected void writeNdefFailed(Exception e) {
        toast(getString(R.string.ndefWriteFailed, e.toString()));
  }

  /**
   * 
   * Tag is not writable or write-protected.
   * 
   * @param e exception
   */

  @Override
  public void writeNdefNotWritable() {
        toast(getString(R.string.tagNotWritable));
  }

  /**
   * 
   * Tag capacity is lower than NDEF message size.
   * 
   * @param e exception
   */

  @Override
  public void writeNdefTooSmall(int required, int capacity) {
    toast(getString(R.string.tagTooSmallMessage,  required, capacity));
  }


  /**
   * 
   * Unable to write this type of tag.
   * 
   */
  
  @Override
  public void writeNdefCannotWriteTech() {
        toast(getString(R.string.cannotWriteTechMessage));
  }

  /**
   * 
   * Successfully wrote NDEF message to tag.
   * 
   */
  
  @Override
  protected void writeNdefSuccess() {
        toast(getString(R.string.ndefWriteSuccess));
  }

   /**
     * 
     * NFC feature was found and is currently enabled
     * 
     */
  
  @Override
  protected void onNfcStateEnabled() {
    toast(getString(R.string.nfcAvailableEnabled));
  }

    /**
     * 
     * NFC feature was found but is currently disabled
     * 
     */

  @Override
  protected void onNfcStateDisabled() {
    toast(getString(R.string.nfcAvailableDisabled));
  }

  /**
     * 
     * NFC setting changed since last check. For example, the user enabled NFC in the wireless settings.
     * 
     */

  @Override
  protected void onNfcStateChange(boolean enabled) {
    if(enabled) {
      toast(getString(R.string.nfcSettingEnabled));
    } else {
      toast(getString(R.string.nfcSettingDisabled));
    }
  }

  /**
   * 
   * This device does not have NFC hardware
   * 
   */
  
  @Override
  protected void onNfcFeatureNotFound() {
    toast(getString(R.string.noNfcMessage));
  }

  
  public void toast(String message) {
    Toast toast = Toast.makeText(this, message, Toast.LENGTH_LONG);
    toast.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL, 0, 0);
    toast.show();
  }
  
}
Java Source Code List
