关于数据不同步 Inconsistency detected vs The content of the adapter has changed but ListView ......
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关于数据不同步的问题
ListView
1.报错: java.lang.IllegalStateException: The content of the adapter has changed but ListView did not receive a notification. Make sure the content of your adapter is not modified from a background thread, but only from the UI thread. Make sure your adapter calls notifyDataSetChanged() when its content changes.
2. 出现时机：点击
RecyclerView
1.报错 java.lang.IndexOutOfBoundsException: Inconsistency detected
2.出现时机：滑动
复现步骤Demo:
package com.example.administrator.recycleviewmultidemo.demo;import android.app.Activity;import android.os.Bundle;import android.support.v7.widget.GridLayoutManager;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListView;import android.widget.TextView;import com.chad.library.adapter.base.entity.MultiItemEntity;import com.example.administrator.recycleviewmultidemo.R;import java.util.ArrayList;import java.util.List;public class MainActivity extends Activity { private RecyclerView rv; private ListView lv; private List beans = new ArrayList<>(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); beans.add(null); doRecycleView();// doListView(); } private void doListView() { lv = findViewById(R.id.lv); lv.setAdapter(new BaseAdapter() { @Override public int getCount() { return beans.size(); } @Override public Object getItem(int position) { return null; } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { TextView tv = new TextView(MainActivity.this); tv.setHeight(200); tv.setText("hhhhhdddddddddddddddddddd"); return tv; } }); lv.postDelayed(new Runnable() { @Override public void run() { beans.clear(); } },3000); } private void doRecycleView() { rv = findViewById(R.id.rv); rv.setLayoutManager(new LinearLayoutManager(this)); rv.setAdapter(new MyRecycleAdapter()); rv.postDelayed(new Runnable() { @Override public void run() { beans.clear(); } },3000); } class MyRecycleAdapter extends RecyclerView.Adapter{ @Override public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { TextView tv = new TextView(MainActivity.this); tv.setHeight(200); tv.setText("hhhhhdddddddddddddddddddd"); return new RecyclerView.ViewHolder(tv){ }; } @Override public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) { } @Override public int getItemCount() { return beans.size(); } }}
xml:
分别使用上面的doListView() 和doRecycleView() 可以复现（注意修改xml）
解决：1.避免数据不同步，数据改变要通知
2.深拷贝
3.不要直接改变adapter的数据，使用临时变量存储过渡
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