将数组保存到sharedpreferences并在列表视图中显示它

import android.content.Context;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import java.util.ArrayList;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    SharedPreferences sharedPreferences = getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
    ListView listView = findViewById(R.id.listView);
}

private void saveArrayToSharedPreferences(ArrayList<String> array) {
    SharedPreferences sharedPreferences = getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
    SharedPreferences.Editor editor = sharedPreferences.edit();
    editor.putInt("ArraySize", array.size());
    for (int i = 0; i < array.size(); i++) {
        editor.putString("Array_" + i, array.get(i));
    }
    editor.apply();
}

private ArrayList<String> getArrayFromSharedPreferences() {
    SharedPreferences sharedPreferences = getSharedPreferences("MyPrefs", Context.MODE_PRIVATE);
    int arraySize = sharedPreferences.getInt("ArraySize", 0);
    ArrayList<String> array = new ArrayList<>();
    for (int i = 0; i < arraySize; i++) {
        String item = sharedPreferences.getString("Array_" + i, "");
        array.add(item);
    }
    return array;
}

ArrayList<String> array = new ArrayList<>();
array.add("Item 1");
array.add("Item 2");
array.add("Item 3");
saveArrayToSharedPreferences(array);

ArrayList<String> array = getArrayFromSharedPreferences();
ArrayAdapter<String> adapter = new ArrayAdapter<>(this, android.R.layout.simple_list_item_1, array);
listView.setAdapter(adapter);