编程实现 Android 手机上 WiFi 操作，编写蓝牙管理与搜索程序，完成蓝牙启动及配对任务

实现Android手机上WiFi操作：

1. 获取WiFi管理器

WifiManager wifiManager = (WifiManager) context.getSystemService(Context.WIFI_SERVICE);

2. 判断WiFi是否已经打开

if (!wifiManager.isWifiEnabled()) {
    wifiManager.setWifiEnabled(true);
}

3. 扫描WiFi列表

wifiManager.startScan();
List<ScanResult> scanResults = wifiManager.getScanResults();

4. 连接到指定WiFi网络

WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = "\"" + ssid + "\"";
wifiConfig.preSharedKey = "\"" + password + "\"";
wifiManager.addNetwork(wifiConfig);
List<WifiConfiguration> list = wifiManager.getConfiguredNetworks();
for (WifiConfiguration i : list) {
    if (i.SSID != null && i.SSID.equals("\"" + ssid + "\"")) {
        wifiManager.disconnect();
        wifiManager.enableNetwork(i.networkId, true);
        wifiManager.reconnect();
        break;
    }
}

编写蓝牙管理与搜索程序：

1. 获取蓝牙适配器

BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

2. 判断蓝牙是否已经打开

if (!bluetoothAdapter.isEnabled()) {
    Intent enableBluetoothIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
    startActivityForResult(enableBluetoothIntent, REQUEST_ENABLE_BT);
}

3. 搜索蓝牙设备

bluetoothAdapter.startDiscovery();

4. 设置蓝牙可检测性

Intent discoverableIntent = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
discoverableIntent.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 300);
startActivity(discoverableIntent);

5. 配对蓝牙设备

BluetoothDevice device = bluetoothAdapter.getRemoteDevice(address);
device.createBond();