android 如何查看机器蓝牙是否为sink端
时间: 2024-10-09 11:06:12 浏览: 82
在Android中,检查设备是否支持蓝牙Sink角色(通常用于接收音频流)需要用到BluetoothManager和AudioPolicyService。首先,你需要获取到系统的BluetoothAdapter实例,并通过它来进行操作。以下是步骤:
1. 添加权限:在AndroidManifest.xml中添加`<uses-feature>`标签,允许应用访问蓝牙功能,例如:
```xml
<uses-feature android:name="android.hardware.bluetooth.audio.sink" android:required="false"/>
```
2. 获取蓝牙管理服务:
```java
BluetoothManager bluetoothManager = (BluetoothManager) getSystemService(Context.BLUETOOTH_SERVICE);
if (bluetoothManager != null) {
BluetoothAdapter adapter = bluetoothManager.getAdapter();
}
```
3. 检查蓝牙功能和Sink支持:
```java
adapter.isSinkAvailable(); // 返回true表示设备支持作为Sink
boolean isSinkDevice = adapter.isSink() || adapter.isCoordinatedOutputSupported(); // 判断是否为Sink设备或支持协调输出模式
```
如果`isSinkAvailable()`返回`true`,则设备支持蓝牙Sink功能。
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