小编Joh*_*oer的帖子

解答：如何在Android仿真器中使用蓝牙？

我试图启用禁用蓝牙设备。因此，我在下面编写了代码，但给出了错误，该错误也在下面。

if ( bluetoothAdmin == null ) {

    return ;
}
if ( bluetooth . isEnabled()){
    bluetooth . disable ();
}
else {
    bluetooth . enable();
}

在创建

BLuetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter() ;

在清单上

<uses-permission
    android:name="android.permission.BLUETOOTH" 
/>
<uses-permission
    android:name="android.permission.BLUETOOTH_ADMIN" 
/>

错误：

01-23 07:18:53.167: E/BluetoothAdapter(883): Bluetooth binder is null

一半的堆栈：

01-23 07:36:55.624: E/SurfaceFlinger(36): ro.sf.lcd_density must be defined as a build property
01-23 07:37:16.954: E/ActivityThread(642): Service com.android.exchange.ExchangeService has leaked ServiceConnection com.android.emailcommon.service.ServiceProxy$ProxyConnection@40d51230 that was originally bound here
01-23 07:37:16.954: E/ActivityThread(642): …