java - 如何从 pagedList 中删除项目

Question

嗨，我正在使用 mvvm 和分页库。 分页效果完美。

我想从列表中删除项目。

当我尝试删除项目时

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.waalapp, PID: 21397
    java.lang.UnsupportedOperationException
        at java.util.AbstractList.remove(AbstractList.java:161)
        at com.example.waalapp.ui.MainActivity$2.onItemClick(MainActivity.java:73)
        at com.example.waalapp.adapter.WaalAdapter$WaalViewHolder$1.onClick(WaalAdapter.java:66)
        at android.view.View.performClick(View.java:6608)
        at android.view.View.performClickInternal(View.java:6585)
        at android.view.View.access$3100(View.java:785)
        at android.view.View$PerformClick.run(View.java:25921)
        at android.os.Handler.handleCallback(Handler.java:873)
        at android.os.Handler.dispatchMessage(Handler.java:99)
        at android.os.Looper.loop(Looper.java:201)
        at android.app.ActivityThread.main(ActivityThread.java:6864)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:547)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:873)

我的 Activity

        adapter.setOnItemClickListener(new OnItemClickListener() {
            @Override
            public void onItemClick(View v, Waal waal,int pos) {
                waalPagedList.remove(pos);
                adapter.notifyDataSetChanged();
            }

        });

Answer 1

PagedList不支持删除操作，它是不可变列表。