DisplayContext.java
/*
* Copyright 2021 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.FIELD;
import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.ElementType.PARAMETER;
import static java.lang.annotation.ElementType.TYPE;
import static java.lang.annotation.RetentionPolicy.SOURCE;
import java.lang.annotation.Retention;
import java.lang.annotation.Target;
/**
* Denotes a {@link android.content.Context} that is tied to a {@link android.view.Display} and
* can be used to obtain one via {@link android.content.Context#getDisplay}. Note: it is not
* considered to be a UI or visual Context and <b>must not</b> be used to obtain UI-related
* services, such as {@link android.view.WindowManager}, {@link android.view.LayoutInflater} or
* {@link android.app.WallpaperManager} via
* {@link android.content.Context#getSystemService(String)}. If the UI services mentioned above
* are required, instead please use Contexts which are marked as {@link UiContext}.
* <p>
* {@link android.app.Activity}, Context instances created with
* {@link android.content.Context#createWindowContext(int, Bundle)} or
* {@link android.content.Context#createDisplayContext(Display)} can be used to get an associated
* {@link android.view.Display} instance.
* <p>
* This is a marker annotation and has no specific attributes.
*
* @see android.content.Context#getDisplay()
* @see android.content.Context#getSystemService(String)
* @see android.content.Context#getSystemService(Class)
* @see android.content.Context#createDisplayContext(Display)
* @see android.content.Context#createWindowContext(int, Bundle)
* @see UiContext
*/
@Retention(SOURCE)
@Target({TYPE, METHOD, PARAMETER, FIELD})
public @interface DisplayContext {
}