*使用蓝牙所需的权限
*蓝牙使用之官方文档介绍
*获取蓝牙的开关状态
*判断蓝牙是否已经与设备连接
*蓝牙搜索附近的设备
*广播接收器(获取搜索到的设备信息,获取蓝牙的状态改变,获取连接设备状态的改变等等)
*主动连接一个蓝牙设备(先配对)
*断开蓝牙设备的连接
*获取蓝牙设备的风格
*获取蓝牙设备类型
1. 使用蓝牙所需的权限
2. 蓝牙使用之官方文档介绍
蓝牙API文档https://developer.android.google.cn/guide/topics/connectivity/bluetooth
操作蓝牙的两个基本类:
https://developer.android.google.cn/reference/android/bluetooth/BluetoothAdapter
https://developer.android.google.cn/reference/android/bluetooth/BluetoothDevice
3. 获取蓝牙的开关状态
//表示本地设备蓝牙适配器。可以执行基本的蓝牙任务，如启动设备发现，查询保税（配对）的设备列表
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter.isEnabled()) {
//关闭蓝牙
mBluetoothAdapter.disable();
} else {
//打开蓝牙
mBluetoothAdapter.enable();
}
4. 判断蓝牙是否已经与设备连接
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
Class bluetoothAdapterClass = BluetoothAdapter.class;//得到BluetoothAdapter的Class对象
//得到连接状态的方法
Method method = bluetoothAdapterClass.getDeclaredMethod("getConnectionState", (Class[]) null);
//打开权限
method.setAccessible(true);
int state = (int) method.invoke(adapter, (Object[]) null);
if (state == BluetoothAdapter.STATE_CONNECTED) {//蓝夜已经连接上设备,不一定是耳机
//获取已经连接的蓝牙设备,有的手机可以同时连接多个设备,有的手机只能连接一个
Set devices = adapter.getBondedDevices();
for (BluetoothDevice device : devices) {
Method isConnectedMethod = BluetoothDevice.class.getDeclaredMethod("isConnected", (Class[]) null);
method.setAccessible(true);
//获取连接的状态
boolean isConnected = (boolean) isConnectedMethod.invoke(device, (Object[]) null);
if (isConnected) {
if (device != null) {
//获取已经连接的设备信息
UILogUtils.e(TAG, "getConnectInfo " + device.getAddress() + " " + device.getName());
if (!device.getName().contains("EDIFIER")) {
}
}
deviceList.add(device);
}
}
} else {//蓝牙是打开状态,但是未连接任何设备
//开启搜索,搜索附近的蓝牙设备
startScanBluth();
}
5. 蓝牙搜索附近的设备
// 判断是否在搜索,如果在搜索，就取消搜索
if (mBluetoothAdapter.isDiscovering()) {
mBluetoothAdapter.cancelDiscovery();
}
// 开始搜索,搜索结果通过广播返回
mBluetoothAdapter.startDiscovery();
6. 广播接收器(获取搜索到的设备信息,获取蓝牙的状态改变,获取连接设备状态的改变等等)
//这个广播过滤器自己根据需求添加,自己需要哪些状态的通知,就添加哪些,
//不清楚该注册哪些的 去官方文档查看对用的说明
https://developer.android.google.cn/reference/android/bluetooth/BluetoothAdapter
https://developer.android.google.cn/reference/android/bluetooth/BluetoothDevice
IntentFilter filter = new IntentFilter();
filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED);
filter.addAction(BluetoothDevice.ACTION_ACL_CONNECTED);
filter.addAction(BluetoothDevice.ACTION_ACL_DISCONNECTED);
filter.addAction(BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED);
filter.addAction(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
filter.addAction(BluetoothHeadset.ACTION_CONNECTION_STATE_CHANGED);
filter.addAction(AudioManager.ACTION_SCO_AUDIO_STATE_UPDATED);
filter.addAction(BluetoothA2dp.ACTION_CONNECTION_STATE_CHANGED);
filter.addAction(BluetoothA2dp.ACTION_PLAYING_STATE_CHANGED);
// 注册广播
registerReceiver(receiver, filter);
这个是简单的蓝牙状态改变的广播
/**
* 广播接收器
*/
private final BroadcastReceiver receiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// 收到的广播类型
String action = intent.getAction();
// 从intent中获取设备
BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
if (device != null) {
UILogUtils.e(TAG, "receiver " + device.getAddress() + " " + device.getName());
}
if (TextUtils.isEmpty(action)) {
return;
}
switch (action) {
case BluetoothAdapter.ACTION_DISCOVERY_FINISHED:// 搜索完成
UILogUtils.e(TAG, "receiver " + "搜索完成");
// 关闭进度条
if (progressDialog != null) {
progressDialog.dismiss();
}
break;
case BluetoothAdapter.ACTION_STATE_CHANGED: //蓝牙开关状态的改变
UILogUtils.e(TAG, "receiver " + "蓝牙开关状态的改变");
int blueState = intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, 0);
switch (blueState) {
case BluetoothAdapter.STATE_ON:
//蓝牙已打开
LogUtils.d(TAG, "蓝牙已打开");
if (listener != null) {
listener.on();
}
break;
case BluetoothAdapter.STATE_OFF:
//蓝牙已关闭
LogUtils.d(TAG, "蓝牙已关闭");
if (listener != null) {
listener.off();
}
if (BluetoothManager.getInstance().checkBLEFeature(context)) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN_MR2) {
BLEManager.getInstance().stopBleScan();
}
}
break;
case BluetoothAdapter.STATE_TURNING_ON:
//蓝牙处于打开过程中，打开ing
LogUtils.d(TAG, "蓝牙打开中");
if (listener != null) {
listener.turningOn();
}
break;
case BluetoothAdapter.STATE_TURNING_OFF:
//蓝牙处于关闭过程中，关闭ing
LogUtils.d(TAG, "蓝牙关闭中");
if (listener != null) {
listener.turningOff();
}
break;
default:
break;
}
break;
case BluetoothDevice.ACTION_FOUND://发现设备的广播
try {
UILogUtils.e(TAG, "receiver " + "发现设备的广播");
// 没有配对
if (device.getBondState() != BluetoothDevice.BOND_BONDED) {
if (!deviceList.contains(device)) {
deviceList.add(device);
}
if (!TextUtils.isEmpty(device.getName()) && device.getName().contains("EDIFIER")) {
name = device.getName();
mBluetoothAdapter.cancelDiscovery();
if (device.getBondState() == BluetoothDevice.BOND_NONE) {
UILogUtils.e(TAG, "startConnent====" + "开始配对");
Method createBondMethod = BluetoothDevice.class.getMethod("createBond");
Boolean result = (Boolean) createBondMethod.invoke(device);
} else if (device.getBondState() == BluetoothDevice.BOND_BONDED) {
connet(device);
}
// startConnent(mBluetoothAdapter.getRemoteDevice(device.getAddress()));
}
}
} catch (Exception e) {
e.printStackTrace();
}
break;
case BluetoothDevice.ACTION_BOND_STATE_CHANGED: // 广播操作：表示远程设备的绑定状态发生变化。
UILogUtils.e(TAG, "receiver " + "广播操作：表示远程设备的绑定状态发生变化。");
if (device.getName().equalsIgnoreCase(name)) {
switch (device.getBondState()) {
case BluetoothDevice.BOND_NONE:
//没有配对
break;
case BluetoothDevice.BOND_BONDING:
//配对中
break;
case BluetoothDevice.BOND_BONDED:
//配对完成
try {
// 连接
connet(device);
} catch (Exception e) {
e.printStackTrace();
}
break;
}
}
break;
case BluetoothDevice.ACTION_ACL_CONNECTED: //广播操作：表示已与远程设备建立了低级别（ACL）连接
UILogUtils.e(TAG, "receiver " + "广播操作：表示已与远程设备建立了低级别（ACL）连接");
break;
default:
break;
}
}
};
7. 主动连接一个蓝牙设备
连接一个设备需要先配对,如果已经配对过就可以直接连接
//与蓝牙设备配对 device是搜索到的蓝牙设备
Method createBondMethod = BluetoothDevice.class.getMethod("createBond");
Boolean result = (Boolean) createBondMethod.invoke(device);
/**
* 连接设备
*
* @param device
*/
private void connet(BluetoothDevice device) {
// 固定的UUID
try {
final String SPP_UUID = "00001101-0000-1000-8000-00805F9B34FB";
UUID uuid = UUID.fromString(SPP_UUID);
BluetoothSocket socket = device.createRfcommSocketToServiceRecord(uuid);
socket.connect();
} catch (Exception e) {
e.printStackTrace();
}
}
8. 解除与蓝牙设备配对
Method removeBondMethod = BluetoothDevice.class.getMethod("removeBond");
Boolean returnValue = (Boolean) removeBondMethod.invoke(btDevice);
9.获取蓝牙设备的风格
/**
* 获取蓝牙设备的风格
*
* @param device
* @return
*/
public static String getBluetoothStyleString(BluetoothDevice device) {
String style = "未知...";
if (device != null) {
int styleMajor = device.getBluetoothClass().getMajorDeviceClass();
switch (styleMajor) {
case BluetoothClass.Device.Major.AUDIO_VIDEO:
style = "音频设备";
break;
case BluetoothClass.Device.Major.COMPUTER:
style = "电脑";
break;
case BluetoothClass.Device.Major.HEALTH://健康状况
style = "健康状况";
break;
case BluetoothClass.Device.Major.IMAGING://镜像，映像
style = "镜像";
break;
case BluetoothClass.Device.Major.MISC:
style = "麦克风";
break;
case BluetoothClass.Device.Major.NETWORKING:
style = "网络";
break;
case BluetoothClass.Device.Major.PERIPHERAL:
style = "外部设备";
break;
case BluetoothClass.Device.Major.PHONE:
style = "电话";
break;
case BluetoothClass.Device.Major.TOY:
style = "玩具";
break;
case BluetoothClass.Device.Major.UNCATEGORIZED:
style = "未知的";
break;
case BluetoothClass.Device.Major.WEARABLE:
style = "穿戴设备";
break;
default:
break;
}
}
return style;
}
10. 获取蓝牙设备类型
/**
* 获取蓝牙设备的类型
*
* @param device
* @return
*/
public static String getBluetoothTypeString(BluetoothDevice device) {
String type = "未知的...";
if (device != null) {
int cls = device.getBluetoothClass().getDeviceClass();
switch (cls) {
case BluetoothClass.Device.AUDIO_VIDEO_CAMCORDER:
type = "录像机";
break;
case BluetoothClass.Device.AUDIO_VIDEO_CAR_AUDIO:
type = "车载设备";
break;
case BluetoothClass.Device.AUDIO_VIDEO_HANDSFREE:
type = "蓝牙耳机";
break;
case BluetoothClass.Device.AUDIO_VIDEO_LOUDSPEAKER:
type = "扬声器";
break;
case BluetoothClass.Device.AUDIO_VIDEO_MICROPHONE:
type = "麦克风";
break;
case BluetoothClass.Device.AUDIO_VIDEO_PORTABLE_AUDIO:
type = "打印机";
break;
case BluetoothClass.Device.AUDIO_VIDEO_SET_TOP_BOX:
type = "BOX";
break;
case BluetoothClass.Device.AUDIO_VIDEO_UNCATEGORIZED:
type = "未知的";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VCR:
type = "录像机";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_CAMERA:
type = "照相机录像机";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_CONFERENCING:
type = "conferencing";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_DISPLAY_AND_LOUDSPEAKER:
type = "显示器和扬声器";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_GAMING_TOY:
type = "游戏";
break;
case BluetoothClass.Device.AUDIO_VIDEO_VIDEO_MONITOR:
type = "可穿戴设备";
break;
case BluetoothClass.Device.PHONE_CELLULAR:
type = "手机";
break;
case BluetoothClass.Device.PHONE_CORDLESS:
type = "无线设备";
break;
case BluetoothClass.Device.PHONE_ISDN:
type = "手机服务数据网";
break;
case BluetoothClass.Device.PHONE_MODEM_OR_GATEWAY:
type = "手机调节器";
break;
case BluetoothClass.Device.PHONE_SMART:
type = "手机卫星";
break;
case BluetoothClass.Device.PHONE_UNCATEGORIZED:
type = "未知手机";
break;
case BluetoothClass.Device.WEARABLE_GLASSES:
type = "可穿戴眼睛";
break;
case BluetoothClass.Device.WEARABLE_HELMET:
type = "可穿戴头盔";
break;
case BluetoothClass.Device.WEARABLE_JACKET:
type = "可穿戴上衣";
break;
case BluetoothClass.Device.WEARABLE_PAGER:
type = "客串点寻呼机";
break;
case BluetoothClass.Device.WEARABLE_UNCATEGORIZED:
type = "未知的可穿戴设备";
break;
case BluetoothClass.Device.WEARABLE_WRIST_WATCH:
type = "手腕监听设备";
break;
case BluetoothClass.Device.TOY_CONTROLLER:
type = "可穿戴设备";
break;
case BluetoothClass.Device.TOY_DOLL_ACTION_FIGURE:
type = "玩具doll_action_figure";
break;
case BluetoothClass.Device.TOY_GAME:
type = "游戏";
break;
case BluetoothClass.Device.TOY_ROBOT:
type = "玩具遥控器";
break;
case BluetoothClass.Device.TOY_UNCATEGORIZED:
type = "玩具未知设备";
break;
case BluetoothClass.Device.TOY_VEHICLE:
type = "vehicle";
break;
case BluetoothClass.Device.HEALTH_BLOOD_PRESSURE:
type = "健康状态-血压";
break;
case BluetoothClass.Device.HEALTH_DATA_DISPLAY:
type = "健康状态数据";
break;
case BluetoothClass.Device.HEALTH_GLUCOSE:
type = "健康状态葡萄糖";
break;
case BluetoothClass.Device.HEALTH_PULSE_OXIMETER:
type = "健康状态脉搏血氧计";
break;
case BluetoothClass.Device.HEALTH_PULSE_RATE:
type = "健康状态脉搏速来";
break;
case BluetoothClass.Device.HEALTH_THERMOMETER:
type = "健康状态体温计";
break;
case BluetoothClass.Device.HEALTH_WEIGHING:
type = "健康状态体重";
break;
case BluetoothClass.Device.HEALTH_UNCATEGORIZED:
type = "未知健康状态设备";
break;
case BluetoothClass.Device.COMPUTER_DESKTOP:
type = "电脑桌面";
break;
case BluetoothClass.Device.COMPUTER_HANDHELD_PC_PDA:
type = "手提电脑或Pad";
break;
case BluetoothClass.Device.COMPUTER_LAPTOP:
type = "便携式电脑";
break;
case BluetoothClass.Device.COMPUTER_PALM_SIZE_PC_PDA:
type = "微型电脑";
break;
case BluetoothClass.Device.COMPUTER_SERVER:
type = "电脑服务";
break;
case BluetoothClass.Device.COMPUTER_UNCATEGORIZED:
type = "未知的电脑设备";
break;
case BluetoothClass.Device.COMPUTER_WEARABLE:
type = "可穿戴的电脑";
break;
case BluetoothClass.Device.AUDIO_VIDEO_HEADPHONES:
type = "头戴式受话器";
break;
case BluetoothClass.Device.AUDIO_VIDEO_HIFI_AUDIO:
type = "高保真音频设备";
break;
case BluetoothClass.Device.AUDIO_VIDEO_WEARABLE_HEADSET:
type = "可穿戴耳机";
break;
default:
break;
}
}
return type;
}