Android

创建一个Activity
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

    // 设置 TextView 的文本
    TextView textView = findViewById(R.id.textView);
    textView.setText("Hello, Android!");
}

}
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使用 RecyclerView 显示列表

<androidx.recyclerview.widget.RecyclerView
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
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// MainActivity.java
public class MainActivity extends AppCompatActivity {
private RecyclerView recyclerView;
private MyAdapter adapter;

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

    recyclerView = findViewById(R.id.recyclerView);
    recyclerView.setLayoutManager(new LinearLayoutManager(this));
    adapter = new MyAdapter(getData());
    recyclerView.setAdapter(adapter);
}

private List<String> getData() {
    return Arrays.asList("Item 1", "Item 2", "Item 3");
}

}

class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private final List data;

public MyAdapter(List<String> data) {
    this.data = data;
}

@NonNull
@Override
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
    View view = LayoutInflater.from(parent.getContext()).inflate(android.R.layout.simple_list_item_1, parent, false);
    return new ViewHolder(view);
}

@Override
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
    holder.textView.setText(data.get(position));
}

@Override
public int getItemCount() {
    return data.size();
}

static class ViewHolder extends RecyclerView.ViewHolder {
    TextView textView;

    ViewHolder(View itemView) {
        super(itemView);
        textView = itemView.findViewById(android.R.id.text1);
    }
}

}