Example usage for android.widget ListView.OnScrollListener ListView.OnScrollListener

Introduction

In this page you can find the example usage for android.widget ListView.OnScrollListener ListView.OnScrollListener.

Prototype

ListView.OnScrollListener

Source Link

Usage

From source file:com.melchor629.musicote.MainActivity.java

@Override
public void onCreate(Bundle savedInstanceState) {
    // Set the user interface layout for this Activity
    // The layout file is defined in the project res/layout/main.xml file
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);//from   www . j  av  a 2  s  .c  o m
    appContext = getApplicationContext();

    swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.mainLayout);
    swipeRefreshLayout.setOnRefreshListener(this);
    swipeRefreshLayout.setColorSchemeResources(R.color.colorAccent, R.color.colorPrimaryDark,
            R.color.colorGrey600);
    final ListView list = (ListView) findViewById(android.R.id.list);
    list.setOnScrollListener(new ListView.OnScrollListener() {
        @Override
        public void onScrollStateChanged(AbsListView view, int scrollState) {
        }

        @Override
        public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
            boolean enable = false;
            if (list != null && list.getChildCount() > 0) {
                // check if the first item of the list is visible
                boolean firstItemVisible = list.getFirstVisiblePosition() == 0;
                // check if the top of the first item is visible
                boolean topOfFirstItemVisible = list.getChildAt(0).getTop() == 0;
                // enabling or disabling the refresh layout
                enable = firstItemVisible && topOfFirstItemVisible;
            }
            swipeRefreshLayout.setEnabled(enable);
        }
    });
    getActionBar().setIcon(R.drawable.ic_launcher);
    getActionBar().setDisplayUseLogoEnabled(true);

    // La app prueba en busca de la direccin correcta
    WifiManager mw = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    WifiInfo wi = mw.getConnectionInfo();
    String SSID = wi.getSSID();
    Log.i("MainActivity", "Wifi conectado: " + SSID + " " + (SSID != null ? SSID.equals("Madrigal") : ""));
    if (SSID == null) {
        SSID = "";
        Toast.makeText(this, getString(R.string.no_wifi), Toast.LENGTH_LONG).show();
    }
    if (SSID.equals("Madrigal") || SSID.contains("Madrigal")
            || System.getProperty("os.version").equals("3.4.67+")) {
        MainActivity.HOST = "192.168.1.133";
    } else {
        MainActivity.HOST = "reinoslokos.no-ip.org";
    }
    Log.i("MainActivity", "HOST: " + HOST);

    //Deletes the notification if remains (BUG)
    NotificationManager mn = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
    if (Reproductor.a == -1)
        mn.cancel(1);
    mn.cancel(3);

    //Revisa la base de datos
    DB mDbHelper = new DB(getBaseContext());
    SQLiteDatabase db = mDbHelper.getWritableDatabase();

    //Actualizacin de la lista
    if (mDbHelper.isNecesaryUpgrade(db) && Utils.HostTest(HOST) == 200)
        async();
    else
        cursordb(db);

    db.close();
    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}

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