/
ViewDisplayTarget.kt
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/
ViewDisplayTarget.kt
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/*
* Copyright 2023 Coil Contributors
*
* 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.
*
* ------------------------------------------------------------------------
* Copyright (C) 2022 panpf <panpfpanpf@outlook.com>
*
* 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 com.github.panpf.sketch.target
import android.graphics.drawable.Drawable
import android.view.View
import androidx.lifecycle.LifecycleObserver
/**
* A [Target] with an associated [View]. Prefer this to [Target] if the given drawables will only
* be used by [view].
*
* Optionally, [ViewDisplayTarget]s can implement [LifecycleObserver]. They are automatically registered
* when the request starts and unregistered when the request completes.
*/
interface ViewDisplayTarget<T : View> : DisplayTarget {
/**
* The [View] used by this [Target]. This field should be immutable.
*/
val view: T?
/**
* The [view]'s current [Drawable].
*/
var drawable: Drawable?
}