Android Recycle View LogCat：找不到方法

Question

我使用了 Android 支持库中的 RecyclerView。在带有 Android 4.1.2 (API 16) 的三星 Galaxy S2 上运行时，一切正常，但在 Logcat 中我看到消息：

03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.isUpdated ()Z from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.isUpdated, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16775: Landroid/support/v7/widget/RecyclerView$ViewHolder;.isUpdated ()Z
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x0031
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.flagRemovedAndOffsetPosition (IIZ)V from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.flagRemovedAndOffsetPosition, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16759: Landroid/support/v7/widget/RecyclerView$ViewHolder;.flagRemovedAndOffsetPosition (IIZ)V
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x0053
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.isRemoved ()Z from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.isRemoved, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16772: Landroid/support/v7/widget/RecyclerView$ViewHolder;.isRemoved ()Z
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x0058
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.clearPayload ()V from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.clearPayload, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16754: Landroid/support/v7/widget/RecyclerView$ViewHolder;.clearPayload ()V
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x007c
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.isAdapterPositionUnknown ()Z from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.isAdapterPositionUnknown, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16768: Landroid/support/v7/widget/RecyclerView$ViewHolder;.isAdapterPositionUnknown ()Z
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x0086
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.offsetPosition (IZ)V from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.offsetPosition, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16777: Landroid/support/v7/widget/RecyclerView$ViewHolder;.offsetPosition (IZ)V
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x00ad
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.shouldIgnore ()Z from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.shouldIgnore, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16786: Landroid/support/v7/widget/RecyclerView$ViewHolder;.shouldIgnore ()Z
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x00b9
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.setFlags (II)V from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.setFlags, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16782: Landroid/support/v7/widget/RecyclerView$ViewHolder;.setFlags (II)V
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x00d4
03-24 I/dalvikvm: DexOpt: illegal method access (call Landroid/support/v7/widget/RecyclerView$ViewHolder;.addChangePayload (Ljava/lang/Object;)V from Lnet/mytest/TransactionsAdapter$TransactionsAdapterViewHolder;)
03-24 I/dalvikvm: Could not find method android.support.v7.widget.RecyclerView$ViewHolder.addChangePayload, referenced from method net.mytest.TransactionsAdapter$TransactionsAdapterViewHolder.access$super
03-24 W/dalvikvm: VFY: unable to resolve virtual method 16751: Landroid/support/v7/widget/RecyclerView$ViewHolder;.addChangePayload (Ljava/lang/Object;)V
03-24 D/dalvikvm: VFY: replacing opcode 0x6f at 0x00dc

我应该担心这些消息吗？

Answer 1

看这个答案https://stackoverflow.com/a/18600156/1852441

基本上，您没有调用正确的方法。您将不得不调用相应的“支持”方法。

例如。从 v14 调用 getActionBar() 而不是从 v7 调用 getSupportActionBar() 将导致此问题。

确保调用支持方法，此错误就会消失。