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 }