首页 > 代码库 > android-基础编程-RecyclerView

android-基础编程-RecyclerView

2024-09-07 05:35:48   215人阅读

以后android-基础编程*都是控件demo里面的，不再累赘重写。直接介绍控件使用。

RecyclerView is a more advanced and flexible version of ListView. This widget is a Container for large sets of views that can be recycled and scrolled very efficiently.RecyclerView从2014年发布.位于android.support.v7.widget.RecyclerView中。

1.android studio配置RecyclerView库代码

在gradle中加入

compile ‘com.android.support:recyclerview-v7:23.+‘

2.定义布局中使用

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

还要recycleview的item的布局：

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="match_parent"    android:background="#44ff0000"    android:layout_height="wrap_content" >    <TextView        android:id="@+id/id_num"        android:layout_width="match_parent"        android:layout_height="50dp"        android:gravity="center"        android:text="1" /></FrameLayout>

3.在RcyclerViewActi中使用

a.加载view布局：

recyclerView = (RecyclerView) findViewById(R.id.recycle_view);

 

b.设置布局管理LayoutManager

recyclerView.setLayoutManager(new LinearLayoutManager(this));

目前SDK中提供了三种自带的LayoutManager，分别是线程、网格、瀑布式布局管理器:

  • LinearLayoutManager

  • GridLayoutManager

  • StaggeredGridLayoutManager

c.配置数据源

adapter = new RecyclerAdapter(this);adapter.setData(mDatas);//必须指定adaoterrecyclerView.setAdapter(adapter);

 4.点击事件，recycler不支持点击事件，需要自己实现

 a.在adapter定义接口实现如下：

public static interface OnRecyclerViewItemClickListener {        void onItemClick(View view , int pos);    }    // 2 添加接口和设置接口的方法    private OnRecyclerViewItemClickListener mOnItemClickListener = null;    public void setOnItemClickListener(OnRecyclerViewItemClickListener listener) {        this.mOnItemClickListener = listener;  }

b.adater implement view的点击事件

@Overridepublic void onClick(View v) {        //Toast.makeText(get, "默认Toast样式").show();        Log.d("zcx","test");        if (mOnItemClickListener != null) {            //调用onitemclick            mOnItemClickListener.onItemClick(v,1);}

c.调用onitemclick

adapter.setOnItemClickListener(new RecyclerAdapter.OnRecyclerViewItemClickListener()        {            @Override            public void onItemClick(View view, int pos) {                //DO your fucking bussiness here!                adapter.addData(1);                Toast.makeText(getApplicationContext(),"zcx"+pos,Toast.LENGTH_LONG).show();            } });

5.item的动画效果：

recyclerView.setItemAnimator(new DefaultItemAnimator());

最后的实验结果如下：

技术分享

技术分享

 

android-基础编程-RecyclerView


联系
我们