Android example source code file (StartDiscoverableModeActivity.java)

This example Android source code file (StartDiscoverableModeActivity.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

activity, android, app, application, builder, content, intent, no, not, onclicklistener, os, override, request_discoverable_code, startdiscoverablemodeactivity, ui, yes

The StartDiscoverableModeActivity.java Android example source code

/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package net.clc.bt;

import android.app.Activity;
import android.app.AlertDialog.Builder;
import android.bluetooth.BluetoothAdapter;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.widget.Toast;

/**
 * A simple activity that displays a prompt telling users to enable discoverable
 * mode for Bluetooth.
 */

public class StartDiscoverableModeActivity extends Activity {
    public static final int REQUEST_DISCOVERABLE_CODE = 42;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        Intent i = new Intent();
        i.setAction(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
        startActivityForResult(i, REQUEST_DISCOVERABLE_CODE);
    }

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == REQUEST_DISCOVERABLE_CODE) {
            // Bluetooth Discoverable Mode does not return the standard
            // Activity result codes.
            // Instead, the result code is the duration (seconds) of
            // discoverability or a negative number if the user answered "NO".
            if (resultCode < 0) {
                showWarning();
            } else {
                Toast.makeText(this, "Discoverable mode enabled.", 1).show();
                finish();
            }
        }
    }

    private void showWarning() {
        Builder warningDialog = new Builder(this);
        final Activity self = this;

        warningDialog.setTitle(R.string.DISCOVERABLE_MODE_NOT_ENABLED);
        warningDialog.setMessage(R.string.WARNING_MESSAGE);

        warningDialog.setPositiveButton("Yes", new OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                Intent i = new Intent();
                i.setAction(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
                startActivityForResult(i, REQUEST_DISCOVERABLE_CODE);
            }
        });

        warningDialog.setNegativeButton("No", new OnClickListener() {
            public void onClick(DialogInterface dialog, int which) {
                Toast.makeText(self, "Discoverable mode NOT enabled.", 1).show();
                finish();
            }
        });
        warningDialog.setCancelable(false);
        warningDialog.show();
    }

}