遇到的异常：
java.lang.ExceptionInInitializerError静态块初始化异常
NetworkOnMainThreadException访问网线不能在主线程中进行
我的参考资料：
http://www.oschina.net/question/1764894_246656?fromerr=ZElwOffs
老师给的源代码
recyclerView 和cartView的导入方法
别人的都是：
compile 'com.android.support:recyclerview-v7:23.4.0'
compile 'com.android.support:cardview-v7:23.4.0'
但是我的自动添加是这样的：
compile 'com.android.support:recyclerview-v7:24.0.0 -beat'
compile 'com.android.support:cardview-v7:24.0.0 -beat'
但是就算这样也是不成功的
我的只能这样写：
compile 'com.android.support:recyclerview-v7:21.+'
compile 'com.android.support:cardview-v7:21.+'
RecyclerView的使用
1页面布局
<android.support.v7.widget.RecyclerView
android:id="@+id/rcView"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
2初始化控件
RecyclerView rcView;
rcView = (RecyclerView) this.findViewById(R.id.rcView);
3给它数据（图片、文字等等）
List<Integer> imageUrls;
Integer[] imgs ={
R.drawable.happy1,R.drawable.happy2,R.drawable.happy3,R.drawable.happy4,
R.drawable.happy5,R.drawable.happy6,R.drawable.happy7,R.drawable.happy8
};
imageUrls = new ArrayList<>();
imageUrls.addAll(Arrays.asList(imgs));
4适配器
public class MyApdater extends RecyclerView.Adapter<MyApdater.MyViewHolder> {
private Context context;
private LayoutInflater inflater;
private List<Integer> imageList;
private OnItemClickListener itemClickListener;
public interface OnItemClickListener{
void onItemClick(View view, int position);
}
public void setOnItemClickListener(OnItemClickListener itemClickListener){
this.itemClickListener = itemClickListener;
}
public MyApdater(Context context, List<Integer> imageList) {
this.context = context;
this.imageList = imageList;
inflater = LayoutInflater.from(context);
setHasStableIds(true);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
return new MyViewHolder(inflater.inflate(R.layout.list_item,parent,false));
}
@Override
public int getItemCount() {
return imageList.size();
}
@Override
public void onBindViewHolder(final MyViewHolder holder, final int position) {
int e = imageList.get(position);
holder.img_item.setImageResource(e);
// x.image().bind(holder.img_item,imageList.get(position),options);
/*if(itemClickListener != null){
holder.img_item.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// int pos = holder.getPosition(); //获取当前Item的postion
itemClickListener.onItemClick(holder.img_item,position);
}
});
}*/
}
class MyViewHolder extends RecyclerView.ViewHolder{
private ImageView img_item;
public MyViewHolder(View itemView) {
super(itemView);
img_item = (ImageView) itemView.findViewById(R.id.img_item);
}
}
}
5素材xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:id="@+id/card_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="10dp"
android:orientation="horizontal"
card_view:cardBackgroundColor="#EEEEEE"
card_view:cardCornerRadius="5dp"> <ImageView
android:src="@drawable/happy1"
android:id="@+id/img_item"
android:layout_width="match_parent"
android:layout_height="match_parent" /> </android.support.v7.widget.CardView>
6在MainActivity中使用适配器
MyApdater myApdater;
myApdater = new MyApdater(this,imageUrls);
rcView.setAdapter(myApdater);
7设置RecyclerView的动画、显示等效果
StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(1,StaggeredGridLayoutManager.VERTICAL);
rcView.setItemAnimator(new DefaultItemAnimator());
//rcView.addItemDecoration();
rcView.setLayoutManager(layoutManager);
附：MainActivity全代码
package com.firefly.recyclerview; import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.support.v7.widget.DefaultItemAnimator;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.StaggeredGridLayoutManager;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast; import java.util.ArrayList;
import java.util.Arrays;
import java.util.List; public class MainActivity extends ActionBarActivity {
RecyclerView rcView;
MyApdater myApdater;
List<Integer> imageUrls;
Integer[] imgs ={
R.drawable.happy1,R.drawable.happy2,R.drawable.happy3,R.drawable.happy4,
R.drawable.happy5,R.drawable.happy6,R.drawable.happy7,R.drawable.happy8
};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
initData();
init();
} private void init() { rcView = (RecyclerView) this.findViewById(R.id.rcView);
//GridLayoutManager layoutManager = new GridLayoutManager(this,2);
//LinearLayoutManager layoutManager = new LinearLayoutManager(this);
//layoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(1,StaggeredGridLayoutManager.VERTICAL);
rcView.setItemAnimator(new DefaultItemAnimator());
//rcView.addItemDecoration();
rcView.setLayoutManager(layoutManager);
myApdater = new MyApdater(this,imageUrls);
rcView.setAdapter(myApdater);
/* myApdater.setOnItemClickListener(new MyApdater.OnItemClickListener() {
@Override
public void onItemClick(View view, int position) {
Toast.makeText(MainActivity.this, position + " click", Toast.LENGTH_SHORT).show();
imageUrls.remove(position);
myApdater.notifyItemRemoved(position);
}
});*/ } protected void initData()
{
imageUrls = new ArrayList<>();
imageUrls.addAll(Arrays.asList(imgs));
} }