public @interface

ContentView

implements java.lang.annotation.Annotation

 androidx.annotation.ContentView

Overview

Annotation that can be attached to a constructor with a single LayoutRes parameter to denote what layout the component intends to inflate and set as its content.

It is strongly recommended that components that support this annotation specifically call it out in their documentation.

 public class MainFragment extends Fragment {
     public MainFragment() {
         // This constructor is annotated with @ContentView
         super(R.layout.main);
     }
 }
 

Summary

Source

/*
 * Copyright 2019 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 androidx.annotation;

import static java.lang.annotation.ElementType.CONSTRUCTOR;
import static java.lang.annotation.RetentionPolicy.CLASS;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;

/**
 * Annotation that can be attached to a constructor with a single {@link LayoutRes} parameter
 * to denote what layout the component intends to inflate and set as its content.
 * <p>
 * It is strongly recommended that components that support this annotation specifically call
 * it out in their documentation.
 * <pre>
 * public class MainFragment extends Fragment {
 *     public MainFragment() {
 *         // This constructor is annotated with @ContentView
 *         super(R.layout.main);
 *     }
 * }
 * </pre>
 *
 * @see androidx.activity.ComponentActivity#ComponentActivity(int)
 * @see androidx.fragment.app.Fragment#Fragment(int)
 */
@Retention(CLASS)
@Target({CONSTRUCTOR})
public @interface ContentView {
}