Question

我一直在寻找，但似乎没有办法。但..

蓝牙设备的连接状态是否有任何意图过滤器？我试过用。 BluetoothAdapter.ACTION_CONNECTION_STATE_CHANGED但是从未收到过。是的我注册了意图过滤器。

在logcat中，我看到BluetoothService在设备连接后立即对“UUID”进行回调，结果为1，但没有收到任何操作

Answer 1

尝试下面的内容，

import android.app.Activity;
import android.bluetooth.BluetoothAdapter;
import android.os.Bundle;
import android.widget.Toast;

public class BluetoothStatus extends Activity {
 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  BluetoothAdapter bluetooth = BluetoothAdapter.getDefaultAdapter();

  String toastText;
  if (bluetooth.isEnabled()) {
   String address = bluetooth.getAddress();
   String name = bluetooth.getName();
   toastText = name + " : " + address;
  } else
   toastText = "Bluetooth is not enabled";

  Toast.makeText(this, toastText, Toast.LENGTH_LONG).show();

  bluetooth.setName("Enrichware");

 }
}

详细信息：http://learnandroiddevelopment.blogspot.in/2011/02/android-how-to-find-bluetooth-status.html

使用IntentFilter，示例：How to programmatically tell if a Bluetooth device is connected? (Android 2.2)

蓝牙连接状态

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