GridView 带微调器

Question

我有一个带有微调器和文本框的 gridview，当我 select 微调器中的一个值时，文本框文本得到更新，但项目不保留值或位置。 我需要有关微调器和文本框的值不会在滚动时重新定位的代码的帮助。 以下是我的代码：

activity_main.xml：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">

<GridView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:numColumns="3"
    android:text="Hello World!"
    android:id="@+id/grid_view"
/>

grid_item.xml：

public class MainActivity extends AppCompatActivity {
ActivityMainBinding binding;
static String[] label = {"Good","Good","Good","Good","Good","Good","Good","Good","Good","Good"};

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    binding = ActivityMainBinding.inflate(getLayoutInflater());
    setContentView(binding.getRoot());

    GridAdapter gridAdapter = new GridAdapter(MainActivity.this,  label);
    binding.gridView.setAdapter(gridAdapter);
}
private class GridAdapter extends BaseAdapter {

    Context context;
    String[] label;

    LayoutInflater inflater;

    public GridAdapter(Context context, String[] label) {
        this.context = context;
        this.label = label;

    }

    @Override
    public int getCount() {
        return 10;
    }

    @Override
    public Object getItem(int i) {
        return null;
    }

    @Override
    public long getItemId(int i) {
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup viewGroup) {
        if(inflater == null)
        inflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        if(convertView==null) {
            convertView = inflater.inflate(R.layout.grid_item, null);
        }
        Spinner spinner = convertView.findViewById(R.id.spin);
        TextView textView = convertView.findViewById(R.id.Spintext);

        spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
            @Override
            public void onItemSelected(AdapterView<?> parent, View view, int position, long l) {
                textView.setText(String.valueOf(spinner.getSelectedItem()));
                label[position]=String.valueOf(spinner.getSelectedItem());
            }
            @Override
            public void onNothingSelected(AdapterView<?> adapterView) {

            }
        });

        textView.setText(label[position]);
        return convertView;
    }

}

MainActivity.java

 public class MainActivity extends AppCompatActivity { ActivityMainBinding binding; static String[] label = {"Good","Good","Good","Good","Good","Good","Good","Good","Good","Good"}; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); binding = ActivityMainBinding.inflate(getLayoutInflater()); setContentView(binding.getRoot()); GridAdapter gridAdapter = new GridAdapter(MainActivity.this, label); binding.gridView.setAdapter(gridAdapter); } private class GridAdapter extends BaseAdapter { Context context; String[] label; LayoutInflater inflater; public GridAdapter(Context context, String[] label) { this.context = context; this.label = label; } @Override public int getCount() { return 10; } @Override public Object getItem(int i) { return null; } @Override public long getItemId(int i) { return 0; } @Override public View getView(int position, View convertView, ViewGroup viewGroup) { if(inflater == null) inflater=(LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE); if(convertView==null) { convertView = inflater.inflate(R.layout.grid_item, null); } Spinner spinner = convertView.findViewById(R.id.spin); TextView textView = convertView.findViewById(R.id.Spintext); spinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long l) { textView.setText(String.valueOf(spinner.getSelectedItem())); label[position]=String.valueOf(spinner.getSelectedItem()); } @Override public void onNothingSelected(AdapterView<?> adapterView) { } }); textView.setText(label[position]); return convertView; } }