RecyclerView多布局的简单使用demo

很久没有写博客了，最近在写一个比较复杂的项目，里面有很多的recyclerView多布局，正好也借此写一个比较简单的的多布局的demo.以供大家进行参考（虽然网上太多这样的文章）。

不多说了首先先准备主页面布局和两个多布局

<LinearLayout 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"
android:orientation="vertical"
tools:context="com.cnd.rvmorelayout.MainActivity">

<android.support.v7.widget.RecyclerView
android:id="@+id/rv_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>

item1布局

<TextView
android:id="@+id/tv_item"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="你不知道的事" />

item2布局

<TextView
android:id="@+id/tv_item2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="雪一片一片一片一片" />

<ImageView
android:layout_width="10dp"
android:layout_height="10dp"
android:layout_toRightOf="@+id/tv_item2"
android:layout_marginLeft="5dp"
android:background="@mipmap/ic_launcher" />

MainActivity

public class MainActivity extends AppCompatActivity {
private RecyclerView mRv;
private Context mContext;
private List<String> datas = new ArrayList<>();

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

private void initView() {
mContext = this;
mRv = findViewById(R.id.rv_main);
LoadData();
final LinearLayoutManager manager = new LinearLayoutManager(mContext);
manager.setOrientation(LinearLayoutManager.VERTICAL);
mRv.setLayoutManager(manager);
final MyAdapter myAdapter = new MyAdapter(datas);
mRv.setAdapter(myAdapter);

}

private void LoadData() {
for (int i = 0; i < 10; i++) {
datas.add("你是我心内的一首歌" + i);
}
}
}

适配器

public class MyAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {
private static final int NORMAL_TYPE = 0;
private static final int CHECK_TYPE = 1;

@Override
public int getItemViewType(int position) {
if (position == 0) {
return CHECK_TYPE;
}
return NORMAL_TYPE;
}

private List<String> datas;

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

@Override
public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
if (viewType == NORMAL_TYPE) {
return new NormalHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false));
} else
return new CheckHoldr(LayoutInflater.from(parent.getContext()).inflate(R.layout.item2, parent, false));
}

@Override
public void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {
if (holder instanceof NormalHolder) {
((NormalHolder) holder).tv_name.setText(datas.get(position -1));
} else {
((CheckHoldr) holder).tv_name2.setText("我是头部哦");
}
}

@Override
public int getItemCount() {
return datas.size()+1;
}

class NormalHolder extends RecyclerView.ViewHolder {

TextView tv_name;

public NormalHolder(View itemView) {
super(itemView);
tv_name = (TextView) itemView.findViewById(R.id.tv_item);

}

}

class CheckHoldr extends RecyclerView.ViewHolder {
TextView tv_name2;

public CheckHoldr(View itemView) {
super(itemView);
tv_name2 = itemView.findViewById(R.id.tv_item2);
}
}

}

注意下数据的数目的变化，以防止在项目中缺少头部的第一条数据。

附上下载地址：

项目地址

注： 如果使用的是GridLayoutManager会出现 item占位错误问题

[RecyclerView 多布局中GridLayoutManager item占位错误解决办法]

(http://blog.csdn.net/j_zcxf/article/details/79268649)