Show a dialog if bluetooth key is missing when reconnecting

Previous change is reverted due to test failure in b/362901443.

BUG: 360031750
Test: atest BluetoothKeyMissingDialogTest
Flag: com.android.settings.flags.enable_bluetooth_key_missing_dialog
Change-Id: I05b940e8aac26c14f93baa19c224ad98c291b891

src/com/android/settings/bluetooth/BluetoothKeyMissingDialog.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.settings.bluetooth;
+
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Intent;
+import android.os.Bundle;
+
+import androidx.annotation.Nullable;
+import androidx.fragment.app.FragmentActivity;
+
+/** A dialog to ask the user to forget a bluetooth device when the key is missing. */
+public class BluetoothKeyMissingDialog extends FragmentActivity {
+    public static final String FRAGMENT_TAG = "BtKeyMissingFrg";
+
+    @Override
+    protected void onCreate(@Nullable Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
+        Intent intent = getIntent();
+        BluetoothDevice device = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+        if (device == null) {
+            finish();
+            return;
+        }
+        BluetoothKeyMissingDialogFragment fragment = new BluetoothKeyMissingDialogFragment(device);
+        fragment.show(getSupportFragmentManager(), FRAGMENT_TAG);
+        closeSystemDialogs();
+    }
+}