[开发日记-SHUCheck]RecyclerView使用记录

需求：

1. ListView滑动效果

2. 控件包涵：TextView、CheckBox

   实现：

mainView.java

public class MainView extends AppCompatActivity {    private RecyclerView root;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        root = new RecyclerView(this);        setContentView(root);        root.setLayoutManager(new LinearLayoutManager(this));        root.setAdapter(new AdapterNameList());    }

ViewHolder

public class ViewHolder extends RecyclerView.ViewHolder {    private View myView;    //Widgets集合    public TextView textViewName;    public CheckBox checkBoxOk;    public CheckBox checkBoxNotOk;    public CheckBox checkBoxLeave;    public boolean checkBoxChange = false;    public ViewHolder(View myView) {        super(myView);        //控件实例化        textViewName = (TextView) myView.findViewById(R.id.textViewName);        checkBoxOk = (CheckBox) myView.findViewById(R.id.checkboxOk);        checkBoxNotOk = (CheckBox) myView.findViewById(R.id.checkboxNotOkOk);        checkBoxLeave = (CheckBox) myView.findViewById(R.id.checkboxLeave);    }}

AdapterNameList

public class AdapterNameList extends RecyclerView.Adapter implements CompoundButton.OnCheckedChangeListener {    //存放ViewHolde    List<ViewHolder> arrayViewHolder = new ArrayList<ViewHolder>();    @Override    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        //使用资源文件自定义列表        return new ViewHolder(LayoutInflater.from(parent.getContext())                .inflate(R.layout.activity_main_name_list_view, null));    }    @Override    public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {        //对布局控件进行操作        ViewHolder viewHolder = (ViewHolder) holder;        if (viewHolder.checkBoxChange != true){            viewHolder.textViewName.setText(String.format("Name" + position));            viewHolder.checkBoxOk.setId(position);            viewHolder.checkBoxOk.setChecked(false);            viewHolder.checkBoxOk.setOnCheckedChangeListener(this);            viewHolder.checkBoxNotOk.setId(position);            viewHolder.checkBoxNotOk.setChecked(false);            viewHolder.checkBoxNotOk.setOnCheckedChangeListener(this);            viewHolder.checkBoxLeave.setId(position);            viewHolder.checkBoxLeave.setChecked(false);            viewHolder.checkBoxLeave.setOnCheckedChangeListener(this);            arrayViewHolder.add(viewHolder);        }    }    @Override    public int getItemCount() {        //渲染控件的个数        return 50;    }    @Override    public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {        //判断哪一个复选框被选中        arrayViewHolder.get(buttonView.getId()).checkBoxChange = true;        if (buttonView.getText().equals("签到")) {            Log.w("TEST", String.format("buttonView ID = " + buttonView.getId()));        }    }}

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步骤分析以后写，直接说结果

本想通过XML自定义一个列表项，然后就用RecyclerView来实现，但是发现使用RecycleerView时Item被回收后重新填充进列表时，CheckBox还是属于被回收的Item，也就是说第一个Item的CheckBox被选中后，第N个Item（第一个回收后重新填充进列表）的CheckBox同样是被选中的。