RecyclerView android简单实现案例
时间: 2023-07-27 20:17:23 浏览: 48
好的,下面是一个简单的 RecyclerView 实现案例:
1.首先,在项目的 build.gradle 文件中添加 RecyclerView 的依赖:
```
dependencies {
implementation 'com.android.support:recyclerview-v7:28.0.0'
}
```
2.在布局文件中添加 RecyclerView 控件:
```
<android.support.v7.widget.RecyclerView
android:id="@+id/recyclerview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
```
3.创建一个 Adapter 类,用来绑定数据和布局:
```
public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private List<String> mData;
public MyAdapter(List<String> data) {
mData = data;
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_layout, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
holder.mTextView.setText(mData.get(position));
}
@Override
public int getItemCount() {
return mData.size();
}
static class ViewHolder extends RecyclerView.ViewHolder {
TextView mTextView;
ViewHolder(View itemView) {
super(itemView);
mTextView = itemView.findViewById(R.id.textview);
}
}
}
```
4.创建一个 LayoutManager 对象,并将其绑定到 RecyclerView 上:
```
RecyclerView recyclerView = findViewById(R.id.recyclerview);
recyclerView.setLayoutManager(new LinearLayoutManager(this));
```
5.创建数据列表,并将其传递给 Adapter:
```
List<String> data = new ArrayList<>();
data.add("Item 1");
data.add("Item 2");
data.add("Item 3");
MyAdapter adapter = new MyAdapter(data);
recyclerView.setAdapter(adapter);
```
这样就完成了一个简单的 RecyclerView 实现案例。