Makes BluetoothDevice#setAlias a public API

Tag: #feature
Bug: 181093329
Test: atest BluetoothDeviceTest
Change-Id: Ib94bedab5d6d4c63a19096f61187f58dd8937b55

1 files changed, 21 insertions, 11 deletions

diff --git a/framework/java/android/bluetooth/BluetoothDevice.java b/framework/java/android/bluetooth/BluetoothDevice.java
index 07dbdce398..efdbc762bb 100644
--- a/framework/java/android/bluetooth/BluetoothDevice.java
+++ b/framework/java/android/bluetooth/BluetoothDevice.java
@@ -26,6 +26,7 @@ import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.SuppressLint;
 import android.annotation.SystemApi;
 import android.app.PropertyInvalidatedCache;
+import android.companion.AssociationRequest;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
 import android.os.Build;
@@ -1211,8 +1212,7 @@ public final class BluetoothDevice implements Parcelable {
     }
 
     /**
-     * Get the Bluetooth alias of the remote device.
-     * <p>Alias is the locally modified name of a remote device.
+     * Get the locally modifiable name (alias) of the remote Bluetooth device.
      *
      * @return the Bluetooth alias, the friendly device name if no alias, or
      * null if there was a problem
@@ -1238,25 +1238,35 @@ public final class BluetoothDevice implements Parcelable {
     }
 
     /**
-     * Set the Bluetooth alias of the remote device.
-     * <p>Alias is the locally modified name of a remote device.
-     * <p>This methoid overwrites the alias. The changed
-     * alias is saved in the local storage so that the change
-     * is preserved over power cycle.
+     * Sets the locally modifiable name (alias) of the remote Bluetooth device. This method
+     * overwrites the previously stored alias. The new alias is saved in local
+     * storage so that the change is preserved over power cycles.
      *
-     * @return true on success, false on error
-     * @hide
+     * <p>This method requires the calling app to be associated with Companion Device Manager (see
+     * {@link android.companion.CompanionDeviceManager#associate(AssociationRequest,
+     * android.companion.CompanionDeviceManager.Callback, Handler)}) and have the {@link
+     * android.Manifest.permission#BLUETOOTH} permission. Alternatively, if the caller has the
+     * {@link android.Manifest.permission#BLUETOOTH_PRIVILEGED} permission, they can bypass the
+     * Companion Device Manager association requirement.
+     *
+     * @param alias is the new locally modifiable name for the remote Bluetooth device which must be
+     *              non-null and not the empty string.
+     * @return {@code true} if the alias is successfully set, {@code false} on error
+     * @throws IllegalArgumentException if the alias is {@code null} or the empty string
      */
-    @UnsupportedAppUsage(maxTargetSdk = Build.VERSION_CODES.R, trackingBug = 170729553)
     @RequiresPermission(Manifest.permission.BLUETOOTH)
     public boolean setAlias(@NonNull String alias) {
+        if (alias == null || alias.isEmpty()) {
+            throw new IllegalArgumentException("Cannot set the alias to null or the empty string");
+        }
         final IBluetooth service = sService;
         if (service == null) {
             Log.e(TAG, "BT not enabled. Cannot set Remote Device name");
             return false;
         }
         try {
-            return service.setRemoteAlias(this, alias);
+            BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
+            return service.setRemoteAlias(this, alias, adapter.getOpPackageName());
         } catch (RemoteException e) {
             Log.e(TAG, "", e);
         }