text: /*
   * 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 com.example.android.motion.demo
  
  import com.bumptech.glide.RequestBuilder
  import com.bumptech.glide.load.DataSource
  import com.bumptech.glide.load.engine.GlideException
  import com.bumptech.glide.request.RequestListener
  import com.bumptech.glide.request.target.Target
  
  /**
   * Executes the specified [body] when the request is complete. It is invoked no matter whether the
   * request succeeds or fails.
   */
  fun <T> RequestBuilder<T>.doOnEnd(body: () -> Unit): RequestBuilder<T> {
      return addListener(object : RequestListener<T> {
          override fun onLoadFailed(
              e: GlideException?,
              model: Any?,
              target: Target<T>?,
              isFirstResource: Boolean
          ): Boolean {
              body()
              return false
          }
  
          override fun onResourceReady(
              resource: T,
              model: Any?,
              target: Target<T>?,
              dataSource: DataSource?,
              isFirstResource: Boolean
          ): Boolean {
              body()
              return false
          }
      })
  }
  