UnlockWalletDialog.java

package com.mygeopay.wallet.ui;

import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.TextView;

import com.mygeopay.wallet.R;

/**
 * @author John L. Jegutanis
 */
abstract public class UnlockWalletDialog extends DialogFragment {
    private TextView passwordView;

    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        final LayoutInflater inflater = LayoutInflater.from(getActivity());
        final View view = inflater.inflate(R.layout.get_password_dialog, null);
        passwordView = (TextView) view.findViewById(R.id.password);

        return new DialogBuilder(getActivity())
                .setTitle(R.string.unlock_wallet_title)
                .setView(view)
                .setNegativeButton(R.string.button_cancel, dismissListener)
                .setPositiveButton(R.string.button_ok, okListener)
                .setCancelable(false)
                .create();
    }

    DialogInterface.OnClickListener okListener = new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            String password = passwordView.getText().toString();
            dismissAllowingStateLoss();
            onPassword(password);
        }
    };

    DialogInterface.OnClickListener dismissListener = new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface dialog, int which) {
            dismissAllowingStateLoss();
            onCancel();
        }
    };

    abstract public void onPassword(String password);
    abstract public void onCancel();
}