API for notification listener for Companioon apps
Test: 1. Trigger the confitrmation dialog.
Ensure it looks exactly like the one from settings.
2. Call an API without associating the appa first
Ensure exception is thrown with a message mentioning the need to associate 1st
Change-Id: I94d4116e1988db869ed445ae3fd018c50590e3f4
diff --git a/core/java/com/android/internal/util/FunctionalUtils.java b/core/java/com/android/internal/util/FunctionalUtils.java
new file mode 100644
index 0000000..9aeb041
--- /dev/null
+++ b/core/java/com/android/internal/util/FunctionalUtils.java
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2017 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.internal.util;
+
+import java.util.function.Supplier;
+
+/**
+ * Utilities specific to functional programming
+ */
+public class FunctionalUtils {
+ private FunctionalUtils() {}
+
+ /**
+ * An equivalent of {@link Runnable} that allows throwing checked exceptions
+ *
+ * This can be used to specify a lambda argument without forcing all the checked exceptions
+ * to be handled within it
+ */
+ @FunctionalInterface
+ public interface ThrowingRunnable {
+ void run() throws Exception;
+ }
+
+ /**
+ * An equivalent of {@link Supplier} that allows throwing checked exceptions
+ *
+ * This can be used to specify a lambda argument without forcing all the checked exceptions
+ * to be handled within it
+ */
+ @FunctionalInterface
+ public interface ThrowingSupplier<T> {
+ T get() throws Exception;
+ }
+}