tests/autofillservice/src/android/autofillservice/cts/Visitor.java

/*
 * 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 android.autofillservice.cts;

/**
 * A generic visitor.
 *
 * <p>Typically used by activities under test to provide a way to run an action on the view using
 * the UI thread. Example:
 * <pre><code>
 * void onUsername(ViewVisitor<EditText> v) {
 *     runOnUiThread(() -> {
 *         v.visit(mUsername);
 *     });
 * }
 * </code></pre>
 */
interface Visitor<T>{

    void visit(T view);
}