Merge "Adding a method to know if there is a connection to a BluetoothDevice."

core/java/android/bluetooth/BluetoothDevice.java

@@ -873,6 +873,26 @@ public final class BluetoothDevice implements Parcelable {
         return BOND_NONE;
     }
 
+    /**
+     * Returns whether there is an open connection to this device.
+     * <p>Requires {@link android.Manifest.permission#BLUETOOTH}.
+     *
+     * @return True if there is at least one open connection to this device.
+     * @hide
+     */
+    public boolean isConnected() {
+        if (sService == null) {
+            // BT is not enabled, we cannot be connected.
+            return false;
+        }
+        try {
+            return sService.isConnected(this);
+        } catch (RemoteException e) {
+            Log.e(TAG, "", e);
+            return false;
+        }
+    }
+
     /**
      * Get the Bluetooth class of the remote device.
      * <p>Requires {@link android.Manifest.permission#BLUETOOTH}.

core/java/android/bluetooth/IBluetooth.aidl

@@ -58,6 +58,7 @@ interface IBluetooth
     boolean cancelBondProcess(in BluetoothDevice device);
     boolean removeBond(in BluetoothDevice device);
     int getBondState(in BluetoothDevice device);
+    boolean isConnected(in BluetoothDevice device);
 
     String getRemoteName(in BluetoothDevice device);
     int getRemoteType(in BluetoothDevice device);