Handler kann nicht innerhalb eines Threads erstellt werden, der nicht Looper.prepare() aufgerufen hat

Question

Ich erhalte die Fehlermeldung "Can't create handler inside thread that has not called Looper.prepare()"

Können Sie mir sagen, wie man das beheben kann?

public class PaymentActivity extends BaseActivity {
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.payment);

    final Button buttonBank = (Button) findViewById(R.id.buttonBank);

    buttonBank.setOnClickListener(new View.OnClickListener() {
        public void onClick(View v) {
            progressDialog = ProgressDialog.show(PaymentActivity.this, "",
                    "Redirecting to payment gateway...", true, true);

            new Thread() {
                public void run() {
                    try {
                        startPayment("Bank");
                    } catch (Exception e) {
                        alertDialog.setMessage(e.getMessage());
                        handler.sendEmptyMessage(1);
                        progressDialog.cancel();
                    }
                }
            }.start();
        }

    });

StartZahlungsmethode:

    private void startPayment(String id) {
    Bundle b = getIntent().getExtras();
    final Sail sail = b.getParcelable(Constant.SAIL);

    final Intent bankIntent = new Intent(this, BankActivity.class);

    try {
        Reservation reservation = RestService.createReservation(
                sail.getId(),
                getSharedPreferences(Constant.PREF_NAME_CONTACT, 0));
        bankIntent.putExtra(Constant.RESERVATION, reservation);

        // <workingWithDB> Storing Reservation info in Database
        DBAdapter db = new DBAdapter(this);
        db.open();
        @SuppressWarnings("unused")
        long rowid;
        rowid = db.insertRow(sail.getId(), sail.getFrom(),
                sail.getTo(), sail.getShip(), sail.getDateFrom().getTime(),
                sail.getPrice().toString(), reservation.getId().floatValue());
        db.close();
        // </workingWithDB>

        String html = PaymentService.getRedirectHTML(id, reservation);

        bankIntent.putExtra(Constant.BANK, html);
    } catch (Exception e) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        AlertDialog alertDialog = builder.create();
        alertDialog.setMessage(e.getMessage());
        alertDialog.show();
    }

    startActivity(bankIntent);
}

Answer 1

Versuchen Sie

final Handler handlerTimer = new Handler(Looper.getMainLooper());
        handlerTimer.postDelayed(new Runnable() {
            public void run() {
                                ...... 

                              }
                                                 }, time_interval});