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<?xml version="1.0" encoding="utf-8"?>

<TabHost xmlns:android="http://schemas.android.com/apk/res/android"
	android:id="@android:id/tabhost"
	android:layout_width="fill_parent"
	android:layout_height="fill_parent"
	>
	
	<RelativeLayout 
		android:layout_width="fill_parent"

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public class SignalStrengthListener extends PhoneStateListener {

    @Override
    public void onSignalStrengthsChanged(SignalStrength signalStrength) {
        super.onSignalStrengthsChanged(signalStrength);

        boolean isGsm = signalStrength.isGsm();
        // Get the CDMA RSSI value in dBm
        int iCdmaDbm = signalStrength.getCdmaDbm();
        // Get the CDMA Ec/Io value in dB*10

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ColorMatrixColorFilter setContrast(float contrast) {
    float scale = contrast + 1.f;
    float translate = (-.5f * scale + .5f) * 255.f;
    float[] array = new float[] {
        scale, 0, 0, 0, translate,
        0, scale, 0, 0, translate,
        0, 0, scale, 0, translate,
        0, 0, 0, 1, 0};
    ColorMatrix matrix = new ColorMatrix(array);
    ColorMatrixColorFilter filter = new ColorMatrixColorFilter(matrix);

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// from http://d.hatena.ne.jp/Superdry/20110130/1296405341
private int[] convertRGB2YUV(int color) {
	ColorMatrix cm = new ColorMatrix();
	cm.setRGB2YUV();
	final float[] yuvArray = cm.getArray();
	
	int r = Color.red(color);
	int g = Color.green(color);
	int b = Color.blue(color);
	int[] result = new int[3];

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File dir = context.getFilesDir(); // /data/data/package/files
File dir = context.getCacheDir(); // /data/data/package/cache
File dir = Environment.getDataDirectory(); // /data
File dir = Environment.getDownloadCacheDirectory();  // /cache
File dir = Environment.getExternalStorageDirectory();  // /sdcard
File dir = Environment.getRootDirectory();  // /system

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private final int REQUEST_CROP_GALLERY=1;

private File mTempFile;

public void onClick(View v) {
    try {
        mTempFile = getTempFile();

        // Launch picker to choose photo for selected contact
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT, null);

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// 配列要素をカンマ区切の文字列に変換してくれる
Arrays.toString(配列要素)

// 指定された配列の「深層内容」の文字列表現を返す。
Arrays.deepToString(Object[] a) 

// 配列をListに変換
List<String> list = Arrays.asList(strs); 

//ListからStringの配列に変換

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final private Handler mHandler = new Handler() {
	@Override
	public void handleMessage(final Message msg) {
		switch (msg.what) {
			case MESSAGE_ONE:
				// TODO:
				return;
			case MESSAGE_TWO:
				// TODO:
				return;

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   // copy from http://goo.gl/NxT8B

    private LocationManager mLocationManager;
    private String mBestProvider;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // 位置情報サービスマネージャを取得

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final WifiManager mWifiManager = (WifiManager) getSystemService(WIFI_SERVICE);

if(mWifiManager.getWifiState() == WifiManager.WIFI_STATE_ENABLED) {

    // register WiFi scan results receiver
    IntentFilter filter = new IntentFilter();
    filter.addAction(WifiManager.SCAN_RESULTS_AVAILABLE_ACTION);

    registerReceiver(new BroadcastReceiver(){
        @Override