Android开发笔记之 RecyclerView和ScrollView嵌套使用，ListView和ScrollView嵌套使用对比

直接上代码：

1、activity的代码：

public class mainactivity extends appcompatactivity {
    private list list;

    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.activity_main);

        list = new arraylist<>();
        for (int i = 0; i < 20; i++) {
            list.add("item:" + i);
        }

        listview listview = findviewbyid(r.id.listview);
        listview.setadapter(new mylistviewadapter(this, list));

        recyclerview recyclerview = findviewbyid(r.id.recyclerview);
        recyclerview.setadapter(new myadapter(this, list));
        linearlayoutmanager manager = new linearlayoutmanager(this, linearlayoutmanager.vertical, false);
        recyclerview.setlayoutmanager(manager);

    }
}

2、activity中加载的view的布局：

3、recyclerview的adapter：

public class myrecyclerviewadapter extends recyclerview.adapter {
    private context context;
    private list list;

    public myrecyclerviewadapter(context context, list list) {
        this.context = context;
        this.list = list;
    }

    @override
    public myviewholder oncreateviewholder(viewgroup parent, int viewtype) {
        view view = layoutinflater.from(context).inflate(r.layout.item, null);
        return new myviewholder(view);
    }

    @override
    public void onbindviewholder(myviewholder holder, int position) {
        holder.title.settext(list.get(position));
    }

    @override
    public int getitemcount() {
        return list.size();
    }

    class myviewholder extends recyclerview.viewholder {

        private textview title;

        public myviewholder(view itemview) {
            super(itemview);
            title = itemview.findviewbyid(r.id.title);
        }
    }
}

4、运行效果：

结论：6.0模拟器上recyclerview的数据显示完全，并且recyclerview也可以滑动，额、、、模拟器上操作起来稍稍有点卡顿的意思。oppo r9 android5.1真机上，recyclerview数据显示完全，recyclerview失去滑动能力。

下面演示scrollview里嵌套使用listview，adapter的代码如下：

public class mylistviewadapter extends baseadapter {
    private context context;
    private list list;

    public mylistviewadapter(context context, list list) {
        this.context = context;
        this.list = list;
    }

    @override
    public int getcount() {
        return list.size();
    }

    @override
    public object getitem(int position) {
        return list.get(position);
    }

    @override
    public long getitemid(int position) {
        return position;
    }

    @override
    public view getview(int position, view convertview, viewgroup parent) {
        myviewholder myviewholder = null;
        if (convertview == null) {
            convertview = layoutinflater.from(context).inflate(r.layout.item, null);
            myviewholder = new myviewholder();
            convertview.settag(myviewholder);
        } else {
            myviewholder = (myviewholder) convertview.gettag();
        }
        myviewholder.title = (textview) convertview.findviewbyid(r.id.title);
        myviewholder.title.settext(list.get(position));

        return convertview;
    }

    class myviewholder {
        textview title;
    }
}

接下来在布局文件中设置recyclerview隐藏，listview设置为显示，运行效果如下：

结论：6.0模拟器上listview数据显示不全，listview可以滑动，oppo r9 android5.1真机上，listview数据显示不全，listview可以滑动。