需要添加依赖库
compile 'com.android.support:recyclerview-v7:23.1.1'
package com.zdsoft.recyclerview1129;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
private RecyclerView rv;
private List<Item> list;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
inieView();
initDate();
}
private void inieView() {
rv = (RecyclerView) findViewById(R.id.rv);
}
private void initDate() {
MyRecyclerViewAdapter adapter = new MyRecyclerViewAdapter(this, getList());
rv.setLayoutManager(new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL));
/**
* LinearLayoutManager:像listview一样展示
* GridLayoutManager:像Gridview一样展示
* StaggeredGridLayoutManager:瀑布流展示方式
*/
rv.setAdapter(adapter);
}
/**
* 数据源
*
* @return
*/
private List<Item> getList() {
list = new ArrayList<Item>();
Item i1 = new Item();
i1.setImg(R.drawable.a1);
list.add(i1);
Item i2 = new Item();
i2.setImg(R.drawable.a2);
list.add(i2);
Item i3 = new Item();
i3.setImg(R.drawable.a4);
list.add(i3);
Item i4 = new Item();
i4.setImg(R.drawable.a4);
list.add(i4);
Item i5 = new Item();
i5.setImg(R.drawable.a2);
list.add(i5);
Item i6 = new Item();
i6.setImg(R.drawable.a3);
list.add(i6);
Item i7 = new Item();
i7.setImg(R.drawable.a4);
list.add(i7);
Item i8 = new Item();
i8.setImg(R.drawable.q4);
list.add(i8);
return list;
}
}
package com.zdsoft.recyclerview1129;
import android.content.Context;
import android.support.v4.content.ContextCompat;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.List;
/**
* Created by Administrator on 2016/11/29.
*/
public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.MyViewHolder> {
private Context context;
private List<Item> list;
public MyRecyclerViewAdapter(Context context, List<Item> list) {
this.context = context;
this.list = list;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(context).inflate(R.layout.recyclerview_item, null);
MyViewHolder myViewHolder = new MyViewHolder(view);
view.setTag(myViewHolder);
return myViewHolder;
}
@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
holder.iv_img.setImageDrawable(ContextCompat.getDrawable(context, list.get(position).getImg()));
}
@Override
public int getItemCount() {
return list.size();
}
public class MyViewHolder extends RecyclerView.ViewHolder {
private ImageView iv_img;
public MyViewHolder(View itemView) {
super(itemView);
iv_img = (ImageView) itemView.findViewById(R.id.iv_img);
}
}
}
package com.zdsoft.recyclerview1129;
/**
* Created by Administrator on 2016/11/29.
*/
public class Item {
private int img;
public int getImg() {
return img;
}
public void setImg(int img) {
this.img = img;
}
}
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin">
<android.support.v7.widget.RecyclerView
android:id="@+id/rv"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<ImageView
android:id="@+id/iv_img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="@color/colorAccent"
android:padding="10dp"
android:scaleType="fitStart" />
</LinearLayout>