Glide是否使每个图像请求排队？滚动

Question

时，Recyclerview的加载非常慢

我一直在使用Glide 3.6 +使用GridLayoutManager的RecyclerView在我们的应用程序中看到非常长的图像加载时间。图像都在20kb-40kb左右。滑行似乎使所有请求排队，一旦开始向下滚动列表，就会导致图像加载花费相当长的时间。我已经附加了GenericRequest类的日志。

V/GenericRequest﹕ finished setup for calling load in 0.170291 this: 249721749
V/GenericRequest﹕ finished onSizeReady in 0.36724999999999997 this: 249721749
V/GenericRequest﹕ finished run method in 0.763083 this: 249721749
V/GenericRequest﹕ Got onSizeReady in 0.041249999999999995 this: 991315424
V/GenericRequest﹕ finished setup for calling load in 0.15479199999999999 this: 991315424
V/GenericRequest﹕ finished onSizeReady in 0.30008399999999996 this: 991315424
V/GenericRequest﹕ finished run method in 0.499959 this: 991315424
V/GenericRequest﹕ Got onSizeReady in 0.060584 this: 1029510845
V/GenericRequest﹕ finished setup for calling load in 0.200625 this: 1029510845
V/GenericRequest﹕ finished onSizeReady in 0.39233399999999996 this: 1029510845
V/GenericRequest﹕ finished run method in 0.670084 this: 1029510845
V/GenericRequest﹕ Got onSizeReady in 0.048374999999999994 this: 516458536
V/GenericRequest﹕ finished setup for calling load in 0.188666 this: 516458536
V/GenericRequest﹕ finished onSizeReady in 0.379916 this: 516458536
V/GenericRequest﹕ finished run method in 0.654083 this: 516458536
V/GenericRequest﹕ Resource ready in 1012.49325 size: 2.18359375 fromCache: false this: 671303046
V/GenericRequest﹕ Got onSizeReady in 0.073833 this: 356666200
V/GenericRequest﹕ finished setup for calling load in 0.240667 this: 356666200
V/GenericRequest﹕ finished onSizeReady in 0.460792 this: 356666200
V/GenericRequest﹕ finished run method in 0.780708 this: 356666200
V/GenericRequest﹕ Got onSizeReady in 0.064583 this: 347417463
V/GenericRequest﹕ finished setup for calling load in 0.242583 this: 347417463
V/GenericRequest﹕ finished onSizeReady in 0.45758299999999996 this: 347417463
V/GenericRequest﹕ finished run method in 0.7521249999999999 this: 347417463
V/GenericRequest﹕ Got onSizeReady in 0.142833 this: 671303046
V/GenericRequest﹕ finished setup for calling load in 0.38966599999999996 this: 671303046
V/GenericRequest﹕ finished onSizeReady in 0.703708 this: 671303046
V/GenericRequest﹕ finished run method in 1.851125 this: 671303046
V/GenericRequest﹕ Got onSizeReady in 0.056957999999999995 this: 634418527
V/GenericRequest﹕ finished setup for calling load in 0.21787499999999999 this: 634418527
V/GenericRequest﹕ finished onSizeReady in 0.443083 this: 634418527
V/GenericRequest﹕ finished run method in 0.7567499999999999 this: 634418527
V/GenericRequest﹕ Resource ready in 3443.041335 size: 2.18359375 fromCache: false this: 249721749
V/GenericRequest﹕ Resource ready in 4110.604794 size: 3.8623809814453125 fromCache: false this: 1054166306
V/GenericRequest﹕ Resource ready in 3824.033544 size: 3.8623809814453125 fromCache: false this: 991315424
V/GenericRequest﹕ Resource ready in 3773.0562109999996 size: 3.8623809814453125 fromCache: false this: 1029510845
V/GenericRequest﹕ Resource ready in 4542.90796 size: 2.18359375 fromCache: false this: 516458536
V/GenericRequest﹕ Resource ready in 4171.866168 size: 3.8623809814453125 fromCache: false this: 634418527
V/GenericRequest﹕ Resource ready in 4474.170752 size: 3.8623809814453125 fromCache: false this: 356666200
V/GenericRequest﹕ Resource ready in 4496.104085 size: 2.18359375 fromCache: false this: 671303046
V/GenericRequest﹕ Resource ready in 4814.625126999999 size: 2.18359375 fromCache: false this: 347417463

想知道是否有人可以提供有关该问题可能是什么的见解。调整视图大小可能需要花费时间？我使用match_parent作为视图的宽度，固定高度大约为200dp。

图像使用]加载>

Glide.with(fragmentContext)
          .load(imageUrl)
          .centerCrop()
          .placeholder(R.drawable.placeholder)
          .into(viewHolder.productImage);
XML

<ImageView
      android:id="@+id/product_image"
      android:layout_width="match_parent"
      android:layout_height="@dimen/product_image_height" (208dp)
      android:layout_gravity="top"
      android:background="@color/placeholder_bg"
      />
编辑：根据@VladimirMironov评论。我已经更新了增加的池，并在回收视图时清除了待处理的负载。快速滚动时，这似乎有所帮助。在进行视图测量时，为视图提供覆盖或不使用“ match_parent”是否有任何好处？在某些情况下，视图将不会显示近5秒钟。

我一直在使用Glide 3.6 +使用GridLayoutManager的RecyclerView在我们的应用程序中看到非常长的图像加载时间。图像都在20kb-40kb左右。似乎滑行使所有...

Answer 1

添加以下几行，您会看到改进的地方