由于矢量可绘制对象，KitKat 出现 StackOverflowError

Question

我有一个具有以下视图层次结构的自定义视图：

[LinearLayout]
  [CardView]
    [LinearLayout]
      [RecyclerView]

最后一个 RecyclerView 的每一项都包含 3 个矢量可绘制对象。当我运行 KitKat (api 19) 上的应用程序时，WhosebugError 发生

FATAL EXCEPTION: main
     Process: com.tsse.spain.myvodafone, PID: 3405
     java.lang.WhosebugError
         at android.graphics.Matrix.mapVectors(Matrix.java:684)
         at android.support.graphics.drawable.VectorDrawableCompat$VPathRenderer.getMatrixScale(VectorDrawableCompat.java:1300)
         at android.support.graphics.drawable.VectorDrawableCompat$VPathRenderer.drawPath(VectorDrawableCompat.java:1207)
         at android.support.graphics.drawable.VectorDrawableCompat$VPathRenderer.drawGroupTree(VectorDrawableCompat.java:1184)
         at android.support.graphics.drawable.VectorDrawableCompat$VPathRenderer.draw(VectorDrawableCompat.java:1193)
         at android.support.graphics.drawable.VectorDrawableCompat$VectorDrawableCompatState.updateCachedBitmap(VectorDrawableCompat.java:1023)
         at android.support.graphics.drawable.VectorDrawableCompat.draw(VectorDrawableCompat.java:366)
         at android.view.View.draw(View.java:14450)
         at android.view.View.getDisplayList(View.java:13362)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.draw(View.java:14468)
         at android.view.View.getDisplayList(View.java:13362)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.getDisplayList(View.java:13357)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.getDisplayList(View.java:13357)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.support.v7.widget.RecyclerView.drawChild(RecyclerView.java:4477)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.draw(View.java:14468)
         at android.support.v7.widget.RecyclerView.draw(RecyclerView.java:3869)
         at android.view.View.getDisplayList(View.java:13362)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.getDisplayList(View.java:13357)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.draw(View.java:14468)
         at android.widget.FrameLayout.draw(FrameLayout.java:472)
         at android.view.View.getDisplayList(View.java:13362)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.draw(View.java:14468)
         at android.view.View.getDisplayList(View.java:13362)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.getDisplayList(View.java:13357)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940)
         at android.view.View.getDisplayList(View.java:13357)
         at android.view.View.getDisplayList(View.java:13404)
         at android.view.View.draw(View.java:14182)
         at android.view.ViewGroup.drawChild(ViewGroup.java:3103)
         at android.support.v7.widget.RecyclerView.drawChild(RecyclerView.java:4477)
        at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2940

我正在 Application class 的 onCreate() 中使用 AppCompatDelegate.setCompatVectorFromResourcesEnabled(true); 和 build.gradle[= 中的 vectorDrawables.useSupportLibrary = true 启用矢量绘图19=]

当我使用普通 PNG 绘图时，错误不会发生。

我做错了什么？

Answer 1

在 onBindViewHolder 中以编程方式创建您的 vector-drawable 并将其设置为您的视图，如下所示：-

   Drawable your_vector_drawable = VectorDrawableCompat.create(context.getResources(), R.drawable.vectorDrawable, null);

现在将此可绘制对象设置为您在 onBindViewHolder 中的视图...

  yourView.setBackground(your_vector_drawable);

这有望解决:)

This is a lower api issue...

Answer 2

我解决了这个问题，方法是先将矢量可绘制对象转换为 Bitmap，然后使用 ImageView.setImageBitmap(Bitmap) 将其提供给 ImageView。这性能较低，但可以完成工作

由于矢量可绘制对象，KitKat 出现 StackOverflowError

StackOverflowError on KitKat because of vector drawables

android

runtime-error

android-drawable

android-recyclerview

android-vectordrawable