Question

在RecycleView右侧Edit_text，Edit_text当用户更改Edit_text中的虚拟数据时，即使列表行有效，也应保存在Edit_Text中从视图上/下或通过按开关按钮用户转到其他视图。我想在RecycleView

中保存数据

为此，我实现了RecycleView，Adapter类并开发了一个Simple Loader类。

我从Loader类获取数据到我的Edit_Text类并将数据发送到适配器类。从Adapter类Edit_Text获取数据后，我将数据发送回Loader Class进行保存。

但是当我更改RecycleView中的数据时，它无法保存。请合作。
OnCreate班级// Dummy Data String[] mobileArray = {"Android", "Skype", "mail", "twitter", "What's app", "facebook", "Windows7", "Max OS X", "Android", "IPhone", "WindowsMobile"}; int[] programImages = { R.drawable.ic_phone,R.drawable.ic_skype,R.drawable.ic_email, R.drawable.ic_twitter, R.drawable.ic_whatsapp, R.drawable.ic_facebook, R.drawable.check_icon, R.drawable.check_icon, R.drawable.check_icon, R.drawable.check_icon, R.drawable.check_icon}; String[] data = {"Android", "Skype", "mail", "twitter", "What's app", "Ubuntu", "Windows7","koki","Andreas","Niko","Filip"}; //Getting EditText data From Loader class String [] numbers=new DataLoader().getFirstdata(); String [] statics=new DataLoader().getSeconddata(); @Override protected void onCreate(@Nullable Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_profile); //Recycle View final RecyclerView recyclerView=(RecyclerView)findViewById(R.id.recyclerView); recyclerView.setHasFixedSize(true); recyclerView.addItemDecoration(new DividerItemDecoration(getResources().getDrawable(R.drawable.abc_list_divider_mtrl_alpha))); RecyclerView.LayoutManager mLayoutManager = new LinearLayoutManager(getApplicationContext()); recyclerView.setLayoutManager(mLayoutManager); recyclerView.setItemAnimator(new DefaultItemAnimator()); recyclerView.setAdapter(new CustomRecycleAdapter(programImages,mobileArray,numbers)); //In Switch I am changing the data in Adapter mySwitch.setChecked(true); mySwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() { @Override public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) { if (isChecked) { recyclerView.setAdapter(new CustomRecycleAdapter(programImages,mobileArray,numbers)); Toast.makeText(getApplicationContext(), "Switch is checked", Toast.LENGTH_LONG).show(); } else { recyclerView.setAdapter(new CustomRecycleAdapter(programImages,data,statics)); Toast.makeText(getApplicationContext(), "Switch is not checked", Toast.LENGTH_LONG).show(); } } }); } }方法：

    public class CustomRecycleAdapter extends RecyclerView.Adapter<CustomRecycleAdapter.MyViewHolder> {

String [] result;
int [] imageId;
String [] numbers;
Context context;

// Loader object
DataLoader loader=new DataLoader();

LayoutInflater inflater=null;

public class MyViewHolder extends RecyclerView.ViewHolder {
    ImageView image;
    EditText editText;
    TextView title;

    public MyViewHolder(View view) {
        super(view);
        title = (TextView) view.findViewById(R.id.label);
        image=(ImageView) view.findViewById(R.id.profile_list_icon);
        editText=(EditText) view.findViewById(R.id.number);

    }
}


public CustomRecycleAdapter(int[] programImages, String[] mobileArray, String[] numbers) {

    //  this.context=context;
    imageId=programImages;
    result=mobileArray;




    this.numbers=numbers;


}

@Override
public CustomRecycleAdapter.MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {

    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.activity_profile_list, parent, false);

    return new MyViewHolder(itemView);
}


@Override
public void onBindViewHolder(CustomRecycleAdapter.MyViewHolder holder, int position) {

    holder.title.setText(result[position]);
    holder.editText.setText(numbers[position]);
    holder.image.setImageResource(imageId[position]);




    // Loader getting Edited Text


    loader.setFirstdata(position,holder.editText.getText().toString());
    numbers[position]=holder.editText.getText().toString();

}

@Override
public int getItemCount() {
    return result.length;
 }

}

适配器类：

public class DataLoader {


String[] numbers = {"+4312345678", "aaaaa", "bbbbbbbbbbb", "+9255433654", "567567", "342245", "6545645", "456546", "123123", "324234", "1455433654"};

String[] statics = {"+4312345678", "ddddddddd", "kkkkkkkkkkk", "+9255433654", "567567", "0098", "+=0909", "++8883","+4312345678", "ssssss", "tttttttttttt"};



public void setFirstdata(int position, String data){
    numbers[position]=data;
}
public void setSecondData(int position, String data){
    statics[position]=data;
}

public String[] getFirstdata(){
    return numbers;
}
public String[] getSeconddata(){
    return statics;
}

}

我的装载机班级：

{{1}}

Answer 1

@Shahek 有两个提示，首先不要创建三种类型的数组，只需创建一个用于存储数据的模型类。

   public void YourModelClass {
      String result;
      int  imageId;
      String numbers;

    public YourModelClass(String result,int imageId,String number){
        this.result = result;
        this.imageId = imageId;
        this.number = number

    }
  }

并创建一个List<YourModelClass>，然后您的Adapter Constructor看起来像

public CustomRecycleAdapter(List<YourModelClass> yourModelList) {
    this.yourModelList  = yourModelList;
}

和

创建一个单独的方法来更新editText，每当您更新字段时，您必须notifyAdapter未调用

private void updateListItemAtPos(int position){
   loader.setFirstdata(position,holder.editText.getText().toString());
    numbers[position]=holder.editText.getText().toString();
}

您只需更新List项目并调用notify，RecyclerView会自动保存已编辑的文本

在Recycle View Edit_Text中保存数据

1 个答案: