コード例 #1
0
 /** Helper function that formats and displays the current frequency. */
 private void displayFreq() {
   String a = Double.toString((double) mCurrentfrequency / 1000);
   if (mFmBand.getChannelOffset() == CHANNEL_OFFSET_50KHZ) {
     mFrequencyTextView.setText(String.format(a, "%.2f"));
   } else {
     mFrequencyTextView.setText(String.format(a, "%.1f"));
   }
 }
コード例 #2
0
 /**
  * Required method from parent class
  *
  * @param icicle - The previous instance of this app
  */
 @Override
 public void onCreate(Bundle icicle) {
   super.onCreate(icicle);
   setContentView(R.layout.main);
   mFmTransmitter = (FmTransmitter) getSystemService(Context.RADIO_FM_TRANSMITTER_SERVICE);
   SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
   mSelectedBand = settings.getInt("selectedBand", 1);
   mFmBand = new FmBand(mSelectedBand);
   mFrequencyIncrement = mFmBand.getChannelOffset();
   setupButtons();
   setupAnimation();
 }
コード例 #3
0
  /** React to a selection in the option menu */
  @Override
  public boolean onOptionsItemSelected(MenuItem item) {

    if (item.getGroupId() == BAND_SELECTION_MENU) {
      switch (item.getItemId()) {
        case BAND_US:
          mSelectedBand = FmBand.BAND_US;
          item.setChecked(true);
          break;
        case BAND_EU:
          mSelectedBand = FmBand.BAND_EU;
          item.setChecked(true);
          break;
        case BAND_JAPAN:
          mSelectedBand = FmBand.BAND_JAPAN;
          item.setChecked(true);
          break;
        case BAND_CHINA:
          mSelectedBand = FmBand.BAND_CHINA;
          item.setChecked(true);
          break;
        default:
          break;
      }
      mFmBand = new FmBand(mSelectedBand);
      try {
        mFmTransmitter.reset();
        ((Button) findViewById(R.id.Transmit)).setBackgroundResource(R.drawable.transmitgobutton);
        ((TextView) findViewById(R.id.FrequencyTextView)).setText("----");
        mFrequencyIncrement = mFmBand.getChannelOffset() / 1000;
        mTransmitAnimation.stop();
      } catch (Exception e) {
        showToast("Unable to restart the FM Radio", Toast.LENGTH_LONG);
      }
    }
    return super.onOptionsItemSelected(item);
  }