Back to project page GizwitsBLE.
The source code is released under:
Apache License
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/* * Copyright (C) 2013 The Android Open Source Project *// ww w . jav a 2 s .co m * 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. */ /** * This XPG software is supplied to you by Xtreme Programming Group, Inc. * ("XPG") in consideration of your agreement to the following terms, and your * use, installation, modification or redistribution of this XPG software * constitutes acceptance of these terms.? 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XPG * integrates cutting-edge hardware designs, mobile applications, and cloud * computing technologies to bring innovative products to the marketplace. XPG's * partners and customers include global leading corporations in semiconductor, * home appliances, health/wellness electronics, toys and games, and automotive * industries. Visit www.xtremeprog.com for more information. * * Copyright (C) 2013 Xtreme Programming Group, Inc. All Rights Reserved. */ package com.example.bluetooth.le; import java.util.ArrayList; import android.app.Activity; import android.app.ListActivity; import android.bluetooth.BluetoothAdapter; import android.bluetooth.BluetoothDevice; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.os.Handler; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.ListView; import android.widget.TextView; import android.widget.Toast; import com.xtremeprog.sdk.ble.BleService; import com.xtremeprog.sdk.ble.IBle; /** * Activity for scanning and displaying available Bluetooth LE devices. */ public class DeviceScanActivity extends ListActivity { private LeDeviceListAdapter mLeDeviceListAdapter; private boolean mScanning; private Handler mHandler; private IBle mBle; private static final int REQUEST_ENABLE_BT = 1; // Stops scanning after 10 seconds. private static final long SCAN_PERIOD = 10000; private final BroadcastReceiver mBleReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { String action = intent.getAction(); if (BleService.BLE_NOT_SUPPORTED.equals(action)) { runOnUiThread(new Runnable() { @Override public void run() { Toast.makeText(DeviceScanActivity.this, "Ble not support", Toast.LENGTH_SHORT).show(); finish(); } }); } else if (BleService.BLE_DEVICE_FOUND.equals(action)) { // device found Bundle extras = intent.getExtras(); final BluetoothDevice device = extras .getParcelable(BleService.EXTRA_DEVICE); runOnUiThread(new Runnable() { @Override public void run() { mLeDeviceListAdapter.addDevice(device); mLeDeviceListAdapter.notifyDataSetChanged(); } }); } else if (BleService.BLE_NO_BT_ADAPTER.equals(action)) { runOnUiThread(new Runnable() { @Override public void run() { Toast.makeText(DeviceScanActivity.this, "No bluetooth adapter", Toast.LENGTH_SHORT) .show(); finish(); } }); } } }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); getActionBar().setTitle(R.string.title_devices); mHandler = new Handler(); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.main, menu); if (!mScanning) { menu.findItem(R.id.menu_stop).setVisible(false); menu.findItem(R.id.menu_scan).setVisible(true); menu.findItem(R.id.menu_refresh).setActionView(null); } else { menu.findItem(R.id.menu_stop).setVisible(true); menu.findItem(R.id.menu_scan).setVisible(false); menu.findItem(R.id.menu_refresh).setActionView( R.layout.actionbar_indeterminate_progress); } return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { switch (item.getItemId()) { case R.id.menu_scan: mLeDeviceListAdapter.clear(); scanLeDevice(true); break; case R.id.menu_stop: scanLeDevice(false); break; } return true; } @Override protected void onResume() { super.onResume(); registerReceiver(mBleReceiver, BleService.getIntentFilter()); // Ensures Bluetooth is enabled on the device. If Bluetooth is not // currently enabled, // fire an intent to display a dialog asking the user to grant // permission to enable it. if (mBle != null && !mBle.adapterEnabled()) { Intent enableBtIntent = new Intent( BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(enableBtIntent, REQUEST_ENABLE_BT); } // Initializes list view adapter. mLeDeviceListAdapter = new LeDeviceListAdapter(); setListAdapter(mLeDeviceListAdapter); scanLeDevice(true); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { // User chose not to enable Bluetooth. if (requestCode == REQUEST_ENABLE_BT && resultCode == Activity.RESULT_CANCELED) { finish(); return; } super.onActivityResult(requestCode, resultCode, data); } @Override protected void onPause() { super.onPause(); unregisterReceiver(mBleReceiver); scanLeDevice(false); mLeDeviceListAdapter.clear(); } @Override protected void onListItemClick(ListView l, View v, int position, long id) { final BluetoothDevice device = mLeDeviceListAdapter.getDevice(position); if (device == null) return; final Intent intent = new Intent(this, DeviceControlActivity.class); intent.putExtra(DeviceControlActivity.EXTRAS_DEVICE_NAME, device.getName()); intent.putExtra(DeviceControlActivity.EXTRAS_DEVICE_ADDRESS, device.getAddress()); if (mBle != null) { mBle.stopScan(); } startActivity(intent); } private void scanLeDevice(final boolean enable) { BleApplication app = (BleApplication) getApplication(); mBle = app.getIBle(); if (mBle == null) { return; } if (enable) { // Stops scanning after a pre-defined scan period. mHandler.postDelayed(new Runnable() { @Override public void run() { mScanning = false; if (mBle != null) { mBle.stopScan(); } invalidateOptionsMenu(); } }, SCAN_PERIOD); mScanning = true; if (mBle != null) { mBle.startScan(); } } else { mScanning = false; if (mBle != null) { mBle.stopScan(); } } invalidateOptionsMenu(); } // Adapter for holding devices found through scanning. private class LeDeviceListAdapter extends BaseAdapter { private ArrayList<BluetoothDevice> mLeDevices; private LayoutInflater mInflator; public LeDeviceListAdapter() { super(); mLeDevices = new ArrayList<BluetoothDevice>(); mInflator = DeviceScanActivity.this.getLayoutInflater(); } public void addDevice(BluetoothDevice device) { if (!mLeDevices.contains(device)) { mLeDevices.add(device); } } public BluetoothDevice getDevice(int position) { return mLeDevices.get(position); } public void clear() { mLeDevices.clear(); } @Override public int getCount() { return mLeDevices.size(); } @Override public Object getItem(int i) { return mLeDevices.get(i); } @Override public long getItemId(int i) { return i; } @Override public View getView(int i, View view, ViewGroup viewGroup) { ViewHolder viewHolder; // General ListView optimization code. if (view == null) { view = mInflator.inflate(R.layout.listitem_device, null); viewHolder = new ViewHolder(); viewHolder.deviceAddress = (TextView) view .findViewById(R.id.device_address); viewHolder.deviceName = (TextView) view .findViewById(R.id.device_name); view.setTag(viewHolder); } else { viewHolder = (ViewHolder) view.getTag(); } BluetoothDevice device = mLeDevices.get(i); final String deviceName = device.getName(); if (deviceName != null && deviceName.length() > 0) viewHolder.deviceName.setText(deviceName); else viewHolder.deviceName.setText(R.string.unknown_device); viewHolder.deviceAddress.setText(device.getAddress()); return view; } } static class ViewHolder { TextView deviceName; TextView deviceAddress; } }