Android 13 蓝牙常见问题及解决方案
1. 权限问题
问题1:BLUETOOTH_SCAN/BLUETOOTH_CONNECT 权限缺失
java
// 错误日志
E/BluetoothAdapter: Permission denial: Need BLUETOOTH_SCAN permission
E/BluetoothLeScanner: Need BLUETOOTH_SCAN permission to start scan
// 解决方案
// AndroidManifest.xml
<manifest>
<!-- Android 12L (API 32) 及以下 -->
<uses-permission android:name="android.permission.BLUETOOTH"
android:maxSdkVersion="31" />
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"
android:maxSdkVersion="31" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
android:maxSdkVersion="31" />
<!-- Android 13 (API 33) 及以上 -->
<uses-permission android:name="android.permission.BLUETOOTH_SCAN" />
<uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
<uses-permission android:name="android.permission.BLUETOOTH_ADVERTISE" />
<!-- 如果扫描需要位置信息 -->
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"
android:maxSdkVersion="32" />
</manifest>
// 运行时权限请求
private void requestBluetoothPermissions() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
String[] permissions;
if (needsBackgroundLocation) {
permissions = new String[]{
Manifest.permission.BLUETOOTH_SCAN,
Manifest.permission.BLUETOOTH_CONNECT,
Manifest.permission.ACCESS_FINE_LOCATION
};
} else {
permissions = new String[]{
Manifest.permission.BLUETOOTH_SCAN,
Manifest.permission.BLUETOOTH_CONNECT
};
}
ActivityCompat.requestPermissions(
this,
permissions,
REQUEST_BLUETOOTH_PERMISSIONS
);
} else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// Android 6-11 需要位置权限
ActivityCompat.requestPermissions(
this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
REQUEST_LOCATION_PERMISSION
);
}
}
问题2:NEARBY_WIFI_DEVICES 权限
java
// Android 13 新增的附近设备权限
// AndroidManifest.xml
<uses-permission android:name="android.permission.NEARBY_WIFI_DEVICES"
android:usesPermissionFlags="neverForLocation" />
// 运行时请求(可选)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.NEARBY_WIFI_DEVICES)
!= PackageManager.PERMISSION_GRANTED) {
ActivityCompat.requestPermissions(
this,
new String[]{Manifest.permission.NEARBY_WIFI_DEVICES},
REQUEST_NEARBY_DEVICES_PERMISSION
);
}
}
2. 扫描问题
问题3:后台扫描被限制
java
// 错误:后台扫描返回空结果或停止工作
// 解决方案:使用前台服务或特权扫描
public class BluetoothForegroundService extends Service {
private static final int NOTIFICATION_ID = 1001;
private static final String CHANNEL_ID = "BluetoothScanChannel";
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
startForeground(NOTIFICATION_ID, createNotification());
startBluetoothScan();
return START_STICKY;
}
private Notification createNotification() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel = new NotificationChannel(
CHANNEL_ID,
"Bluetooth Scanning",
NotificationManager.IMPORTANCE_LOW
);
NotificationManager manager = getSystemService(NotificationManager.class);
manager.createNotificationChannel(channel);
}
return new NotificationCompat.Builder(this, CHANNEL_ID)
.setContentTitle("蓝牙扫描中")
.setContentText("正在扫描附近的蓝牙设备...")
.setSmallIcon(R.drawable.ic_bluetooth)
.setPriority(NotificationCompat.PRIORITY_LOW)
.build();
}
private void startBluetoothScan() {
BluetoothLeScanner scanner = BluetoothAdapter.getDefaultAdapter()
.getBluetoothLeScanner();
ScanSettings settings = new ScanSettings.Builder()
.setScanMode(ScanSettings.SCAN_MODE_LOW_POWER)
// Android 13: 设置回调类型以避免被限制
.setCallbackType(ScanSettings.CALLBACK_TYPE_ALL_MATCHES)
// 使用 startScanForIntent 获得更长的扫描时间
.build();
// 使用特权扫描API(如果可用)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
PendingIntent pendingIntent = createScanPendingIntent();
scanner.startScanForIntent(pendingIntent, settings, new ArrayList<>());
} else {
scanner.startScan(new ArrayList<>(), settings, scanCallback);
}
}
}
问题4:扫描过滤器不工作
java
// 解决方案:正确配置扫描过滤器
private List<ScanFilter> createEffectiveScanFilters() {
List<ScanFilter> filters = new ArrayList<>();
// 1. 服务UUID过滤(最有效)
ParcelUuid serviceUuid = ParcelUuid.fromString("0000FEAA-0000-1000-8000-00805F9B34FB");
filters.add(new ScanFilter.Builder()
.setServiceUuid(serviceUuid)
.build());
// 2. 设备名称过滤(部分设备可能不广播名称)
filters.add(new ScanFilter.Builder()
.setDeviceName("MyDevice")
.build());
// 3. 制造商数据过滤
byte[] manufacturerData = {0x01, 0x02, 0x03};
byte[] manufacturerDataMask = {0xFF, 0xFF, 0xFF};
filters.add(new ScanFilter.Builder()
.setManufacturerData(0x004C, manufacturerData, manufacturerDataMask)
.build());
// 4. 服务数据过滤
ParcelUuid serviceDataUuid = ParcelUuid.fromString("0000FEAA-0000-1000-8000-00805F9B34FB");
byte[] serviceData = {0x01, 0x02};
byte[] serviceDataMask = {0xFF, 0xFF};
filters.add(new ScanFilter.Builder()
.setServiceData(serviceDataUuid, serviceData, serviceDataMask)
.build());
return filters;
}
3. 连接和配对问题
问题5:连接失败或随机断开
java
// 解决方案:增强的连接管理
public class RobustBluetoothConnector {
private static final int MAX_RETRY_COUNT = 3;
private static final long RETRY_DELAY_MS = 1000;
public void connectWithRetry(BluetoothDevice device, Context context) {
int retryCount = 0;
while (retryCount < MAX_RETRY_COUNT) {
try {
if (connectDevice(device, context)) {
return; // 连接成功
}
} catch (SecurityException e) {
// Android 13 权限问题
Log.e(TAG, "Security exception: " + e.getMessage());
handleSecurityException(context);
break;
} catch (IOException e) {
Log.e(TAG, "Connection failed: " + e.getMessage());
retryCount++;
if (retryCount < MAX_RETRY_COUNT) {
try {
Thread.sleep(RETRY_DELAY_MS);
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
break;
}
}
}
}
Log.e(TAG, "Failed to connect after " + MAX_RETRY_COUNT + " attempts");
}
private boolean connectDevice(BluetoothDevice device, Context context)
throws IOException {
// Android 13: 检查连接权限
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
if (ContextCompat.checkSelfPermission(context,
Manifest.permission.BLUETOOTH_CONNECT)
!= PackageManager.PERMISSION_GRANTED) {
throw new SecurityException("BLUETOOTH_CONNECT permission required");
}
}
// 使用不同的传输方式尝试连接
BluetoothGatt gatt;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
// 使用低功耗传输
gatt = device.connectGatt(context, false, gattCallback,
BluetoothDevice.TRANSPORT_LE);
} else {
gatt = device.connectGatt(context, false, gattCallback);
}
return gatt != null;
}
// 连接状态监控
private final BluetoothGattCallback gattCallback = new BluetoothGattCallback() {
@Override
public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
if (newState == BluetoothProfile.STATE_CONNECTED) {
Log.i(TAG, "Connected to GATT server");
// Android 13: 立即发现服务
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
// 设置连接优先级
gatt.requestConnectionPriority(
BluetoothGatt.CONNECTION_PRIORITY_HIGH);
}
gatt.discoverServices();
} else if (newState == BluetoothProfile.STATE_DISCONNECTED) {
Log.w(TAG, "Disconnected from GATT server");
// 自动重连逻辑
scheduleReconnection(gatt.getDevice());
}
}
@Override
public void onServicesDiscovered(BluetoothGatt gatt, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
Log.i(TAG, "Services discovered successfully");
// 设置特征通知
enableCharacteristicNotifications(gatt);
}
}
};
}
问题6:配对请求不弹出
java
// 解决方案:使用新的配对API
public class BondingManager {
public void bondDevice(BluetoothDevice device, Context context) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
// Android 13 新的配对方法
bondWithNewApi(device, context);
} else {
// 传统配对方法
bondWithLegacyApi(device);
}
}
@RequiresApi(api = Build.VERSION_CODES.TIRAMISU)
private void bondWithNewApi(BluetoothDevice device, Context context) {
// 检查权限
if (ContextCompat.checkSelfPermission(context,
Manifest.permission.BLUETOOTH_CONNECT)
!= PackageManager.PERMISSION_GRANTED) {
Log.e(TAG, "BLUETOOTH_CONNECT permission required");
return;
}
// 使用CompanionDeviceManager进行配对
CompanionDeviceManager cdm = context.getSystemService(
CompanionDeviceManager.class);
if (cdm != null) {
// 创建配对请求
AssociationRequest request = new AssociationRequest.Builder()
.setDeviceProfile(AssociationRequest.DEVICE_PROFILE_WATCH)
.setSingleDevice(false)
.build();
// 启动配对
cdm.associate(request,
new CompanionDeviceManager.Callback() {
@Override
public void onDeviceFound(IntentSender chooserLauncher) {
try {
context.startIntentSender(chooserLauncher,
null, 0, 0, 0);
} catch (IntentSender.SendIntentException e) {
Log.e(TAG, "Failed to send intent", e);
}
}
@Override
public void onFailure(CharSequence error) {
Log.e(TAG, "Pairing failed: " + error);
}
},
null);
} else {
// 回退到传统方法
bondWithLegacyApi(device);
}
}
private void bondWithLegacyApi(BluetoothDevice device) {
try {
// 使用反射调用createBond方法(兼容旧版本)
Method method = device.getClass().getMethod("createBond");
method.invoke(device);
} catch (Exception e) {
Log.e(TAG, "Failed to create bond", e);
}
}
// 配对状态广播接收器
private final BroadcastReceiver pairingReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
if (BluetoothDevice.ACTION_BOND_STATE_CHANGED.equals(action)) {
BluetoothDevice device = intent.getParcelableExtra(
BluetoothDevice.EXTRA_DEVICE);
int bondState = intent.getIntExtra(
BluetoothDevice.EXTRA_BOND_STATE,
BluetoothDevice.BOND_NONE);
int previousBondState = intent.getIntExtra(
BluetoothDevice.EXTRA_PREVIOUS_BOND_STATE,
BluetoothDevice.BOND_NONE);
handleBondStateChange(device, bondState, previousBondState);
}
}
};
}
4. GATT 操作问题
问题7:特征读写失败
java
// 解决方案:增强的GATT操作管理
public class GattOperationManager {
private static final int OPERATION_TIMEOUT_MS = 10000;
private static final int MAX_RETRIES = 3;
private final Map<Integer, GattOperation> pendingOperations =
new ConcurrentHashMap<>();
private final Handler handler = new Handler(Looper.getMainLooper());
public void writeCharacteristicWithRetry(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
byte[] value) {
GattOperation operation = new GattOperation(
GattOperation.Type.WRITE_CHARACTERISTIC,
characteristic,
value);
executeOperationWithRetry(gatt, operation);
}
private void executeOperationWithRetry(BluetoothGatt gatt,
GattOperation operation) {
int retryCount = 0;
while (retryCount < MAX_RETRIES) {
try {
if (executeOperation(gatt, operation)) {
return; // 操作成功
}
} catch (Exception e) {
Log.w(TAG, "Operation failed, retrying...", e);
retryCount++;
if (retryCount < MAX_RETRIES) {
try {
Thread.sleep(1000); // 等待1秒后重试
} catch (InterruptedException ie) {
Thread.currentThread().interrupt();
break;
}
}
}
}
Log.e(TAG, "Operation failed after " + MAX_RETRIES + " retries");
}
private boolean executeOperation(BluetoothGatt gatt,
GattOperation operation) {
final CountDownLatch latch = new CountDownLatch(1);
final AtomicBoolean success = new AtomicBoolean(false);
// 设置回调
BluetoothGattCallback callback = new BluetoothGattCallback() {
@Override
public void onCharacteristicWrite(BluetoothGatt gatt,
BluetoothGattCharacteristic characteristic,
int status) {
if (characteristic.getUuid().equals(
operation.characteristic.getUuid())) {
success.set(status == BluetoothGatt.GATT_SUCCESS);
latch.countDown();
}
}
};
// 注册临时回调
registerTemporaryCallback(gatt, callback);
// 执行操作
boolean initiated = false;
switch (operation.type) {
case WRITE_CHARACTERISTIC:
operation.characteristic.setValue(operation.value);
initiated = gatt.writeCharacteristic(operation.characteristic);
break;
case READ_CHARACTERISTIC:
initiated = gatt.readCharacteristic(operation.characteristic);
break;
}
if (!initiated) {
Log.e(TAG, "Failed to initiate operation");
return false;
}
// 等待操作完成
try {
boolean notTimeout = latch.await(OPERATION_TIMEOUT_MS,
TimeUnit.MILLISECONDS);
if (!notTimeout) {
Log.w(TAG, "Operation timeout");
return false;
}
return success.get();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
return false;
}
}
}
问题8:MTU 协商失败
java
// 解决方案:MTU协商增强
public class MtuNegotiator {
private static final int DEFAULT_MTU = 23;
private static final int MAX_MTU = 512;
private static final int MTU_REQUEST_TIMEOUT_MS = 5000;
public void negotiateMtu(BluetoothGatt gatt) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
requestMtuWithRetry(gatt, MAX_MTU);
}
}
private void requestMtuWithRetry(BluetoothGatt gatt, int mtu) {
final CountDownLatch latch = new CountDownLatch(1);
final AtomicInteger negotiatedMtu = new AtomicInteger(DEFAULT_MTU);
BluetoothGattCallback mtuCallback = new BluetoothGattCallback() {
@Override
public void onMtuChanged(BluetoothGatt gatt, int mtu, int status) {
if (status == BluetoothGatt.GATT_SUCCESS) {
negotiatedMtu.set(mtu);
Log.i(TAG, "MTU negotiated: " + mtu);
} else {
Log.w(TAG, "MTU negotiation failed: " + status);
}
latch.countDown();
}
};
// 注册回调
registerTemporaryCallback(gatt, mtuCallback);
// 请求MTU
boolean requested = gatt.requestMtu(mtu);
if (!requested) {
Log.e(TAG, "Failed to request MTU");
return;
}
// 等待MTU协商完成
try {
boolean notTimeout = latch.await(MTU_REQUEST_TIMEOUT_MS,
TimeUnit.MILLISECONDS);
if (!notTimeout) {
Log.w(TAG, "MTU negotiation timeout");
}
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
}
// 如果MTU协商失败,尝试较小的值
if (negotiatedMtu.get() == DEFAULT_MTU && mtu > 100) {
Log.i(TAG, "Retrying with smaller MTU: " + (mtu / 2));
requestMtuWithRetry(gatt, mtu / 2);
}
}
}
5. 后台限制问题
问题9:后台服务被杀死
java
// 解决方案:使用JobScheduler或WorkManager
public class BluetoothBackgroundWorker {
public static void schedulePeriodicScan(Context context) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
JobScheduler jobScheduler = context.getSystemService(JobScheduler.class);
ComponentName serviceComponent = new ComponentName(
context, BluetoothScanJobService.class);
JobInfo.Builder builder = new JobInfo.Builder(JOB_ID, serviceComponent);
// 设置触发条件
builder.setPeriodic(15 * 60 * 1000); // 每15分钟
builder.setPersisted(true); // 重启后保持
// Android 13: 设置必要的网络类型
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
builder.setRequiredNetworkType(JobInfo.NETWORK_TYPE_ANY);
}
// 设置电池不敏感
builder.setRequiresBatteryNotLow(false);
builder.setRequiresCharging(false);
int result = jobScheduler.schedule(builder.build());
if (result == JobScheduler.RESULT_SUCCESS) {
Log.i(TAG, "Job scheduled successfully");
} else {
Log.e(TAG, "Job scheduling failed");
}
} else {
// 使用AlarmManager兼容旧版本
scheduleWithAlarmManager(context);
}
}
// 使用WorkManager的替代方案
public static void scheduleWithWorkManager(Context context) {
Constraints constraints = new Constraints.Builder()
.setRequiredNetworkType(NetworkType.CONNECTED)
.setRequiresBatteryNotLow(false)
.build();
PeriodicWorkRequest scanWork = new PeriodicWorkRequest.Builder(
BluetoothScanWorker.class,
15, TimeUnit.MINUTES) // 每15分钟
.setConstraints(constraints)
.setBackoffCriteria(
BackoffPolicy.LINEAR,
PeriodicWorkRequest.MIN_BACKOFF_MILLIS,
TimeUnit.MILLISECONDS)
.build();
WorkManager.getInstance(context).enqueueUniquePeriodicWork(
"bluetooth_scan",
ExistingPeriodicWorkPolicy.KEEP,
scanWork);
}
}
6. 特定设备兼容性问题
问题10:与特定设备连接失败
cpp
// Native层解决方案:设备特定兼容性处理
// system/bt/btif/src/btif_dm.cc
void handle_device_specific_quirks(const RawAddress& bd_addr) {
std::string address_str = bd_addr.ToString();
// 检查设备特定问题
if (is_samsung_device(address_str)) {
// 三星设备特定修复
apply_samsung_quirks(bd_addr);
} else if (is_xiaomi_device(address_str)) {
// 小米设备特定修复
apply_xiaomi_quirks(bd_addr);
} else if (is_apple_device(address_str)) {
// Apple设备特定修复
apply_apple_quirks(bd_addr);
}
// Android 13: 应用通用兼容性修复
if (is_android_t_or_above()) {
apply_android13_compatibility_fixes(bd_addr);
}
}
// 应用设备特定修复
static void apply_samsung_quirks(const RawAddress& bd_addr) {
// 1. 调整连接参数
BTM_SetDefaultLinkSupervisionTimeout(bd_addr, 8000); // 8秒超时
// 2. 禁用某些功能
uint16_t link_policy = BTM_DEFAULT_LINK_POLICY;
link_policy &= ~BTM_LINK_POLICY_ENABLE_SNIFF_MODE; // 禁用嗅探模式
BTM_SetLinkPolicy(bd_addr, &link_policy);
// 3. 调整配对参数
tBTM_SEC_DEV_REC* p_dev_rec = btm_find_dev(bd_addr);
if (p_dev_rec) {
p_dev_rec->security_required &= ~BTM_SEC_OUT_AUTHENTICATE;
p_dev_rec->pairable_mode = BTM_PAIRABLE_MODE_ON;
}
}
// 应用Android 13通用修复
static void apply_android13_compatibility_fixes(const RawAddress& bd_addr) {
// 1. 强制使用安全连接
if (controller_get_interface()->supports_secure_connections()) {
tBTM_SEC_DEV_REC* p_dev_rec = btm_find_dev(bd_addr);
if (p_dev_rec) {
p_dev_rec->secure_connections_only = true;
}
}
// 2. 调整扫描参数
BTM_BleSetScanParams(
BTM_BLE_SCAN_MODE_LOW_LATENCY,
50, // scan_interval
50, // scan_window
BTM_BLE_SCAN_PHY_1M,
BTM_BLE_SCAN_TYPE_ACTIVE);
// 3. 设置隐私模式
BTM_BleSetPrivacyMode(bd_addr, BTM_PRIVACY_MODE_DEVICE);
}
7. 调试和日志收集
问题11:调试信息不足
bash
# ADB 调试命令
# 启用蓝牙详细日志
adb shell setprop persist.bluetooth.btsnoopenable true
adb shell setprop persist.bluetooth.btsnooppath /sdcard/btsnoop_hci.log
adb shell setprop persist.bluetooth.btsnoopsize 0xffffffff
# 启用蓝牙HCI日志
adb shell setprop persist.bluetooth.btsnooplogmode full
adb shell setprop log.tag.Bluetooth VERBOSE
adb shell setprop log.tag.BluetoothHci VERBOSE
# 获取蓝牙状态
adb shell dumpsys bluetooth_manager
adb shell dumpsys bluetooth_manager --proto | protoc --decode_raw
# 获取配对设备列表
adb shell cmd bluetooth_manager getBondedDevices
# 启用蓝牙协议栈跟踪
adb shell setprop debug.bluetooth.trace_level 5
adb shell setprop debug.bluetooth.gatt.trace_level 5
adb shell setprop debug.bluetooth.btif.trace_level 5
# Android 13 新增调试命令
adb shell cmd bluetooth_manager setLogLevel verbose
adb shell cmd bluetooth_manager enableCrashLogging
adb shell cmd bluetooth_manager enableMetricsLogging
问题12:崩溃和ANR分析
java
// 添加异常处理
public class BluetoothCrashHandler implements Thread.UncaughtExceptionHandler {
private final Thread.UncaughtExceptionHandler defaultHandler;
public BluetoothCrashHandler() {
defaultHandler = Thread.getDefaultUncaughtExceptionHandler();
}
@Override
public void uncaughtException(Thread thread, Throwable throwable) {
// 记录蓝牙相关崩溃
if (isBluetoothRelatedCrash(throwable)) {
logBluetoothCrash(throwable);
collectBluetoothDebugInfo();
}
// 调用默认处理器
if (defaultHandler != null) {
defaultHandler.uncaughtException(thread, throwable);
}
}
private boolean isBluetoothRelatedCrash(Throwable throwable) {
StackTraceElement[] stackTrace = throwable.getStackTrace();
for (StackTraceElement element : stackTrace) {
String className = element.getClassName();
if (className.contains("bluetooth") ||
className.contains("Bluetooth") ||
className.contains("Gatt") ||
className.contains("Scan")) {
return true;
}
}
return false;
}
private void collectBluetoothDebugInfo() {
try {
// 收集蓝牙状态
BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
if (adapter != null) {
Log.e("BluetoothDebug", "State: " + adapter.getState());
Log.e("BluetoothDebug", "Address: " + adapter.getAddress());
Log.e("BluetoothDebug", "Name: " + adapter.getName());
}
// 收集连接状态
BluetoothManager bluetoothManager =
(BluetoothManager) context.getSystemService(Context.BLUETOOTH_SERVICE);
List<BluetoothDevice> connectedDevices =
bluetoothManager.getConnectedDevices(BluetoothProfile.GATT);
for (BluetoothDevice device : connectedDevices) {
Log.e("BluetoothDebug", "Connected: " + device.getAddress());
}
} catch (Exception e) {
Log.e("BluetoothDebug", "Failed to collect debug info", e);
}
}
}
8. 最佳实践总结
-
权限处理:
- 始终检查
BLUETOOTH_SCAN和BLUETOOTH_CONNECT权限 - 使用
NEARBY_WIFI_DEVICES替代位置权限 - 正确处理后台权限
- 始终检查
-
连接管理:
- 实现重试机制
- 监控连接状态变化
- 处理后台连接限制
-
扫描优化:
- 使用
startScanForIntent进行长时间扫描 - 合理配置扫描参数
- 处理后台扫描限制
- 使用
-
兼容性:
- 处理不同 Android 版本的差异
- 适配不同厂商设备的特性
- 测试各种蓝牙版本和配置文件
-
错误处理:
- 实现全面的异常处理
- 收集详细的调试信息
- 提供用户友好的错误提示
这些解决方案可以帮助解决 Android 13 中常见的蓝牙问题,并确保应用在不同设备和系统版本上的兼容性。