android 中的列表视图项应显示蓝牙设备名称但应隐藏 MAC 设备地址

Question

我一直在尝试寻找一种在 android 应用程序中显示 Ble 设备的方法。我只想显示 Ble 设备的名称，但想隐藏设备的 MAC 地址。

目前我的代码用于获取蓝牙设备列表并显示一串名称和 MAC 地址。从列表视图中选择时，包含蓝牙设备名称和 MAC 的字符串将发送到另一个 activity，其中 MAC 用于连接到设备

String macadd = result.getDevice().getAddress();
String bt_name = result.getDevice().getName();
// check if device is already added to list
if(!device_mac_list.contains(macadd)){
   device_mac_list.add(macadd);
//  adds name and mac to new ble device to list
   devicelist.add("Device Name:" + bt_name + "\n" + "MAC:" + macadd);
   arrayAdapter.notifyDataSetChanged();
}

ListView 声明

private ListView bt_devices;
ArrayList<String> devicelist = new ArrayList<String>();
arrayAdapter = new ArrayAdapter<String>(DevActivity.this, android.R.layout.simple_list_item_1, devicelist);
bt_devices.setAdapter(arrayAdapter);

我只想显示设备名称，并在列表视图中隐藏 mac 地址。其余过程将相同

谢谢

Answer 1

解决方案是将设备的名称和 mac 地址作为键值格式存储在 Map 中。

map中存储键值对的代码为

HashMap<String, String> filterDevices = new HashMap<>();
if(!device_mac_list.contains(btMac)){
    device_mac_list.add(btMac);
//  storing bluetooth device name in map with device name and mac address in key value pair
    filterDevices.put(btName, btMac);
    devicelist.add("Device: "+btName);
    arrayAdapter.notifyDataSetChanged();
}

可以使用从列表视图选择中收到的名称从地图中检索 MAC 地址

bt_devices.setOnItemClickListener(new AdapterView.OnItemClickListener() {
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        String deviceName = ((TextView)view).getText().toString();
        String deviceMac = filterDevices.get(deviceName);
        Log.d("select", deviceName+":"+deviceMac);
    }
});

android 中的列表视图项应显示蓝牙设备名称但应隐藏 MAC 设备地址

Listview item in android should show name of ble device but should hide MAC address of device

java

android

bluetooth-lowenergy