[Audiosharing] Avoid dialog flickering for same bt device group.

Before this change, the dialog will dismiss and show up again if the
second bud of the same group is connected.

In this change, StopDialog and JoinDialog will only update the message
and event listener when the dialog is triggered by another device with the same group id or the new bt device with different group id. (No dismiss and show); DisconnectDialog will only dismiss and show again when a new bt device with different group id is connected and update the event listener when another device with the same group id connected.

Also dismiss the dialog when the triggering device disconnect or join
the sharing.

Test: atest
Bug: 305620450
Change-Id: I798812101cefb24185d76d56f78eae27712dd7a6

src/com/android/settings/connecteddevice/audiosharing/AudioSharingDisconnectDialogFragment.java

@@ -19,13 +19,17 @@ package com.android.settings.connecteddevice.audiosharing;
 import android.app.Dialog;
 import android.app.settings.SettingsEnums;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.widget.Button;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 import androidx.appcompat.app.AlertDialog;
+import androidx.fragment.app.DialogFragment;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -33,8 +37,10 @@ import androidx.recyclerview.widget.RecyclerView;
 
 import com.android.settings.R;
 import com.android.settings.core.instrumentation.InstrumentedDialogFragment;
+import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 
 import java.util.ArrayList;
+import java.util.Locale;
 
 public class AudioSharingDisconnectDialogFragment extends InstrumentedDialogFragment {
     private static final String TAG = "AudioSharingDisconnectDialog";
@@ -56,6 +62,7 @@ public class AudioSharingDisconnectDialogFragment extends InstrumentedDialogFrag
     }
 
     private static DialogEventListener sListener;
+    @Nullable private static CachedBluetoothDevice sNewDevice;
 
     @Override
     public int getMetricsCategory() {
@@ -65,35 +72,78 @@ public class AudioSharingDisconnectDialogFragment extends InstrumentedDialogFrag
     /**
      * Display the {@link AudioSharingDisconnectDialogFragment} dialog.
      *
+     * <p>If the dialog is showing for the same group, update the dialog event listener.
+     *
      * @param host The Fragment this dialog will be hosted.
      * @param deviceItems The existing connected device items in audio sharing session.
-     * @param newDeviceName The name of the latest connected device triggered this dialog.
+     * @param newDevice The latest connected device triggered this dialog.
      * @param listener The callback to handle the user action on this dialog.
      */
     public static void show(
             Fragment host,
             ArrayList<AudioSharingDeviceItem> deviceItems,
-            String newDeviceName,
+            CachedBluetoothDevice newDevice,
             DialogEventListener listener) {
         if (!AudioSharingUtils.isFeatureEnabled()) return;
         final FragmentManager manager = host.getChildFragmentManager();
+        Fragment dialog = manager.findFragmentByTag(TAG);
+        if (dialog != null
+                && ((DialogFragment) dialog).getDialog() != null
+                && ((DialogFragment) dialog).getDialog().isShowing()) {
+            int newGroupId = AudioSharingUtils.getGroupId(newDevice);
+            if (sNewDevice != null && newGroupId == AudioSharingUtils.getGroupId(sNewDevice)) {
+                Log.d(
+                        TAG,
+                        String.format(
+                                Locale.US,
+                                "Dialog is showing for the same device group %d, "
+                                        + "update the content.",
+                                newGroupId));
+                sListener = listener;
+                sNewDevice = newDevice;
+                return;
+            } else {
+                Log.d(
+                        TAG,
+                        String.format(
+                                Locale.US,
+                                "Dialog is showing for new device group %d, "
+                                        + "dismiss current dialog.",
+                                newGroupId));
+                ((DialogFragment) dialog).dismiss();
+            }
+        }
         sListener = listener;
+        sNewDevice = newDevice;
+        Log.d(TAG, "Show up the dialog.");
         final Bundle bundle = new Bundle();
         bundle.putParcelableArrayList(BUNDLE_KEY_DEVICE_TO_DISCONNECT_ITEMS, deviceItems);
-        bundle.putString(BUNDLE_KEY_NEW_DEVICE_NAME, newDeviceName);
-        AudioSharingDisconnectDialogFragment dialog = new AudioSharingDisconnectDialogFragment();
-        dialog.setArguments(bundle);
-        dialog.show(manager, TAG);
+        bundle.putString(BUNDLE_KEY_NEW_DEVICE_NAME, newDevice.getName());
+        AudioSharingDisconnectDialogFragment dialogFrag =
+                new AudioSharingDisconnectDialogFragment();
+        dialogFrag.setArguments(bundle);
+        dialogFrag.show(manager, TAG);
+    }
+
+    /** Return the tag of {@link AudioSharingDisconnectDialogFragment} dialog. */
+    public static @NonNull String tag() {
+        return TAG;
+    }
+
+    /** Get the latest connected device which triggers the dialog. */
+    public @Nullable CachedBluetoothDevice getDevice() {
+        return sNewDevice;
     }
 
     @Override
-    public Dialog onCreateDialog(Bundle savedInstanceState) {
+    public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
         Bundle arguments = requireArguments();
         ArrayList<AudioSharingDeviceItem> deviceItems =
                 arguments.getParcelableArrayList(BUNDLE_KEY_DEVICE_TO_DISCONNECT_ITEMS);
         final AlertDialog.Builder builder =
                 new AlertDialog.Builder(getActivity()).setCancelable(false);
         LayoutInflater inflater = LayoutInflater.from(builder.getContext());
+        // Set custom title for the dialog.
         View customTitle = inflater.inflate(R.layout.dialog_custom_title_audio_sharing, null);
         ImageView icon = customTitle.findViewById(R.id.title_icon);
         icon.setImageResource(R.drawable.ic_bt_audio_sharing);
@@ -115,10 +165,7 @@ public class AudioSharingDisconnectDialogFragment extends InstrumentedDialogFrag
         recyclerView.setLayoutManager(
                 new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false));
         Button cancelBtn = rootView.findViewById(R.id.cancel_btn);
-        cancelBtn.setOnClickListener(
-                v -> {
-                    dismiss();
-                });
+        cancelBtn.setOnClickListener(v -> dismiss());
         AlertDialog dialog = builder.setCustomTitle(customTitle).setView(rootView).create();
         dialog.setCanceledOnTouchOutside(false);
         return dialog;