[移动开发]Adapter+ListView显示蓝牙搜索列表及蓝牙设备类型

目录

main.xml

layout_item.xml

BleView

BleAdapter

BtUtil

MainActivity

main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <Button
        android:id="@+id/search_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="search"
        android:textAllCaps="false"/>

    <ListView
        android:id="@+id/search_result"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"></ListView>
</LinearLayout>

layout_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:paddingLeft="10dp"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="horizontal">

    <!--显示头像-->
    <ImageView
        android:id="@+id/logo_image"
        android:layout_width="50dp"
        android:layout_height="40dp"
        android:adjustViewBounds="true"
        android:layout_toLeftOf="@+id/my_text"
        android:layout_gravity="right" />

    <!--显示名称-->
    <TextView
        android:id="@+id/my_text"
        android:layout_width="match_parent"
        android:layout_height="40dp"
        android:height="44dp"
        android:textSize="12dp"
        android:gravity="left" />
</LinearLayout>

BleView

public class BleView {
    private String aName;
    private int aIcon;
    private String TAG = "BleView";

    public BleView (int aIcon, String aName) {
        Log.i(TAG,"名称：" + aName);
        this.aName = aName;
        Log.i(TAG,"图片：" + aIcon);
        this.aIcon = aIcon;
    }

    public String getaName() {
        Log.i(TAG,"返回名称：" + aName);
        return aName;
    }

    public int getaIcon() {
        return aIcon;
    }

    public void setaName(String aName) {
        this.aName = aName;
    }

    public void setaIcon(int aIcon) {
        this.aIcon = aIcon;
    }
}

BleAdapter

public class BleAdapter extends BaseAdapter {
    private List<BleView> BleList;
    private Context mContext;
    private String TAG = "BleAdapter";

    public BleAdapter (Context context, List<BleView> BleList) {
        this.BleList = BleList;
        this.mContext = context;
    }
    @Override
    public int getCount() {
        return BleList.size();
    }

    @Override
    public Object getItem(int position) {
        return BleList.get(position);
    }

    @Override
    public long getItemId(int position) {
        return position;
    }

    private ViewHolder holder;
    private class ViewHolder {
        private TextView textView;
        private ImageView imageView;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        if (convertView == null) {
            //通过flater获取list行对象
            convertView = LayoutInflater.from(mContext).inflate(R.layout.layout_item, parent, false);
            holder = new ViewHolder();
            //设置图片
            holder.imageView = (ImageView) convertView.findViewById(R.id.logo_image);
            holder.imageView.setImageResource(BleList.get(position).getaIcon());
            //设置名称
            holder.textView = (TextView) convertView.findViewById(R.id.my_text);
            Log.i(TAG, "名称：" + BleList.get(position).getaName());
            holder.textView.setText(BleList.get(position).getaName());
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        return convertView;
    }
}

BtUtil

public class BtUtil {
    public static final int PROFILE_HEADSET = 0;

    public static final int PROFILE_A2DP = 1;

    public static final int PROFILE_OPP = 2;

    public static final int PROFILE_HID = 3;

    public static final int PROFILE_PANU = 4;

    public static final int PROFILE_NAP = 5;

    public static final int PROFILE_A2DP_SINK = 6;

    public static int getDeviceType(BluetoothClass bluetoothClass) {
        if (bluetoothClass == null) {
            return R.drawable.ic_settings_bluetooth;
        }
        switch (bluetoothClass.getMajorDeviceClass()) {
            case BluetoothClass.Device.Major.COMPUTER:
                return R.drawable.ic_bt_laptop;
            case BluetoothClass.Device.Major.PHONE:
                return R.drawable.ic_bt_cellphone;
            case BluetoothClass.Device.Major.PERIPHERAL:
                return R.drawable.ic_bt_misc_hid;
            case BluetoothClass.Device.Major.IMAGING:
                return R.drawable.ic_bt_imaging;
            default:
                if (BtUtil.doesClassMatch(bluetoothClass, PROFILE_HEADSET))
                    return R.drawable.ic_bt_headset_hfp;
                else if (BtUtil.doesClassMatch(bluetoothClass, PROFILE_A2DP)) {
                    return R.drawable.ic_bt_headphones_a2dp;
                } else {
                    return R.drawable.ic_settings_bluetooth;
                }
        }
    }

    public static boolean doesClassMatch(BluetoothClass bluetoothClass, int profile) {
        if (profile == PROFILE_A2DP) {
            if (bluetoothClass.hasService(BluetoothClass.Service.RENDER)) {
                return true;
            }
            // By the A2DP spec, sinks must indicate the RENDER service.
            // However we found some that do not (Chordette). So lets also
            // match on some other class bits.
            switch (bluetoothClass.getDeviceClass()) {
                case BluetoothClass.Device.AUDIO_VIDEO_HIFI_AUDIO:
                case BluetoothClass.Device.AUDIO_VIDEO_HEADPHONES:
                case BluetoothClass.Device.AUDIO_VIDEO_LOUDSPEAKER:
                case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
                    return true;
                default:
                    return false;
            }
        } else if (profile == PROFILE_A2DP_SINK) {
            if (bluetoothClass.hasService(BluetoothClass.Service.CAPTURE)) {
                return true;
            }
            // By the A2DP spec, srcs must indicate the CAPTURE service.
            // However if some device that do not, we try to
            // match on some other class bits.
            switch (bluetoothClass.getDeviceClass()) {
                case BluetoothClass.Device.AUDIO_VIDEO_HIFI_AUDIO:
                case BluetoothClass.Device.AUDIO_VIDEO_SET_TOP_BOX:
                case BluetoothClass.Device.AUDIO_VIDEO_VCR:
                    return true;
                default:
                    return false;
            }
        } else if (profile == PROFILE_HEADSET) {
            // The render service class is required by the spec for HFP, so is a
            // pretty good signal
            if (bluetoothClass.hasService(BluetoothClass.Service.RENDER)) {
                return true;
            }
            // Just in case they forgot the render service class
            switch (bluetoothClass.getDeviceClass()) {
                case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
                case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
                case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
                    return true;
                default:
                    return false;
            }
        } else if (profile == PROFILE_OPP) {
            if (bluetoothClass.hasService(BluetoothClass.Service.OBJECT_TRANSFER)) {
                return true;
            }

            switch (bluetoothClass.getDeviceClass()) {
                case BluetoothClass.Device.COMPUTER_UNCATEGORIZED:
                case BluetoothClass.Device.COMPUTER_DESKTOP:
                case BluetoothClass.Device.COMPUTER_SERVER:
                case BluetoothClass.Device.COMPUTER_LAPTOP:
                case BluetoothClass.Device.COMPUTER_HANDHELD_PC_PDA:
                case BluetoothClass.Device.COMPUTER_PALM_SIZE_PC_PDA:
                case BluetoothClass.Device.COMPUTER_WEARABLE:
                case BluetoothClass.Device.PHONE_UNCATEGORIZED:
                case BluetoothClass.Device.PHONE_CELLULAR:
                case BluetoothClass.Device.PHONE_CORDLESS:
                case BluetoothClass.Device.PHONE_SMART:
                case BluetoothClass.Device.PHONE_MODEM_OR_GATEWAY:
                case BluetoothClass.Device.PHONE_ISDN:
                    return true;
                default:
                    return false;
            }
        } else if (profile == PROFILE_HID) {
            return (bluetoothClass.getDeviceClass() & BluetoothClass.Device.Major.PERIPHERAL) == BluetoothClass.Device.Major.PERIPHERAL;
        } else if (profile == PROFILE_PANU || profile == PROFILE_NAP) {
            // No good way to distinguish between the two, based on class bits.
            if (bluetoothClass.hasService(BluetoothClass.Service.NETWORKING)) {
                return true;
            }
            return (bluetoothClass.getDeviceClass() & BluetoothClass.Device.Major.NETWORKING) == BluetoothClass.Device.Major.NETWORKING;
        } else {
            return false;
        }
    }
}

MainActivity

public class MainActivity extends AppCompatActivity implements View.OnClickListener, AdapterView.OnItemClickListener {

    private static final int PERMISSION_REQUEST_COARSE_LOCATION = 1;
    private String TAG ="MainActivity";
    IntentFilter intentFilter;
    private List<String> bluetoothList = new ArrayList<String>();
    BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
    ArrayAdapter<String> adapter;
    private List<BleView> BleList = new ArrayList<BleView>();
    private Context mContext;
    private BleAdapter mAdapter;
    private ListView list_ble;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mContext = MainActivity.this;
        setContentView(R.layout.activity_main);

        Button search = (Button)findViewById(R.id.search_button);
        list_ble = (ListView) findViewById(R.id.search_result);
        list_ble.setOnItemClickListener(this);
        search.setOnClickListener(this);
        //安卓6以后使用蓝牙要用定位权限
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
            // Android M Permission check
            if (this.checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
                requestPermissions(new String[]{Manifest.permission.ACCESS_COARSE_LOCATION}, PERMISSION_REQUEST_COARSE_LOCATION);
            }
        }
        //蓝牙广播注册
        registerBluetooth();
        //listView点击函数
        listClick();

    }

    //listView点击的实现
    void listClick(){
        list_ble.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {

            }
        });
    }

    //广播注册的实现
    void registerBluetooth(){
        // 设置广播信息过滤
        intentFilter = new IntentFilter();
        intentFilter.addAction(BluetoothDevice.ACTION_FOUND);
        intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_STARTED);
        intentFilter.addAction(BluetoothAdapter.ACTION_DISCOVERY_FINISHED);
        intentFilter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
        intentFilter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
        //注册广播
        registerReceiver(bluetoothReceiver, intentFilter);
    }

    //安卓6回调（有bug）
    @Override
    public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
        switch (requestCode) {
            case PERMISSION_REQUEST_COARSE_LOCATION:
                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                    Log.i(TAG,"回调request");
                    //TODO request success/
                }
                break;
        }
    }

    //button点击的实现
    @Override
    public void onClick(View view){
        switch (view.getId()){
//            case R.id.turn_on:
//            {
//                if(mBluetoothAdapter==null){
//                    Toast.makeText(this,"当前设备不支持蓝牙功能",Toast.LENGTH_SHORT).show();
//                }
//                if(!mBluetoothAdapter.isEnabled()){
//                 /* Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);
//                  startActivity(i);*/
//                    mBluetoothAdapter.enable();
//                }
//                //开启被其它蓝牙设备发现的功能
//                if (mBluetoothAdapter.getScanMode() != BluetoothAdapter.SCAN_MODE_CONNECTABLE_DISCOVERABLE) {
//                    Intent i = new Intent(BluetoothAdapter.ACTION_REQUEST_DISCOVERABLE);
//                    //设置为一直开启
//                    i.putExtra(BluetoothAdapter.EXTRA_DISCOVERABLE_DURATION, 120);
//                    startActivity(i);
//                }
//            }
//            break;
//            case R.id.turn_off:
//                //
//                break;
            case R.id.search_button:
                Log.i(TAG,"有点击 search_button");
                if (BleList == null || !BleList.isEmpty())
                    BleList.clear();
                //如果当前在搜索，就先取消搜索
                if (mBluetoothAdapter.isDiscovering()) {
                    mBluetoothAdapter.cancelDiscovery();
                }
                //开启搜索
                mBluetoothAdapter.startDiscovery();
                break;
            default:
                break;
        }
    }
    //注册销毁
    @Override
    protected void onDestroy(){
        super.onDestroy();
        unregisterReceiver(bluetoothReceiver);
    }

    //蓝牙开始搜索的回调
    private BroadcastReceiver bluetoothReceiver = new BroadcastReceiver()  {
        public void onReceive(Context context, Intent intent) {
            String action = intent.getAction();
            Log.d(TAG,"有回调");
            if (action.equals(BluetoothDevice.ACTION_FOUND)) {
                BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
                //蓝牙设备
                String str = device.getName() + "\n" + device.getAddress();
                int deviceTypeImg = BtUtil.getDeviceType(device.getBluetoothClass());
                Log.d(TAG,"列表：" + str + " 图片：" + Long.toHexString(deviceTypeImg));
                if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
                    BleList.add(new BleView(deviceTypeImg, (str + "(已配对设备)")));
                } else {
                    if (BleList.indexOf(str) == -1) {// 防止重复添加
                        BleList.add(new BleView(deviceTypeImg, (str + "(未配对设备)")));
                    }
                }
            } else if (BluetoothAdapter.ACTION_DISCOVERY_STARTED.equals(action)) {
                Toast.makeText(MainActivity.this,"开始搜索",Toast.LENGTH_SHORT).show();
            } else if (BluetoothAdapter.ACTION_DISCOVERY_FINISHED.equals(action)) {
                Toast.makeText(MainActivity.this,"搜索完毕",Toast.LENGTH_SHORT).show();
            }
            mAdapter = new BleAdapter(context, BleList);
            list_ble.setAdapter(mAdapter);
            mAdapter.notifyDataSetChanged();
        }
    };


    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

    }
}

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