1 /*
2  * Copyright (C) 2017 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package android.autofillservice.cts;
17 
18 /**
19  * A generic visitor.
20  *
21  * <p>Typically used by activities under test to provide a way to run an action on the view using
22  * the UI thread. Example:
23  * <pre><code>
24  * void onUsername(ViewVisitor<EditText> v) {
25  *     runOnUiThread(() -> {
26  *         v.visit(mUsername);
27  *     });
28  * }
29  * </code></pre>
30  */
31 interface Visitor<T>{
32 
visit(T view)33     void visit(T view);
34 }