1、布局文件中使用
1 <android.support.v7.widget.RecyclerView
2 android:id="@+id/recycleview"
3 android:paddingLeft="10dp"
4 android:paddingRight="10dp"
5 android:layout_width="match_parent"
6 android:layout_height="match_parent"
7 android:gravity="center">
8 </android.support.v7.widget.RecyclerView>
2、代码中使用
1 recyclerView = (RecyclerView)findViewById(R.id.recycleview);
2 recyclerView.setLayoutManager(new GridLayoutManager(getActivity(), 4)) ; //gridView网格布局
3 recyclerView.setLayoutManager(new LinearLayoutManager(this)); //listView线性布局
3、适配器
1 package com.yiba.files.adapter;
2
3 import android.content.Context;
4 import android.graphics.drawable.BitmapDrawable;
5 import android.support.v7.widget.RecyclerView;
6 import android.view.LayoutInflater;
7 import android.view.View;
8 import android.view.ViewGroup;
9 import android.widget.ImageView;
10 import android.widget.RelativeLayout;
11 import android.widget.TextView;
12
13 import com.yiba.files.R;
14 import com.yiba.files.model.DataItem;
15 import com.yiba.files.util.DensityUtils;
16 import com.yiba.files.util.DeviceUtils;
17
18 import java.util.List;
19
20 /**
21 * Created by ${zyj} on 2016/1/23.
22 */
23 public class AppAdapter extends RecyclerView.Adapter<AppAdapter.MyViewHolder> {
24 private Context context;
25 private List<DataItem> list;
26 private RelativeLayout.LayoutParams params;
27
28 public interface OnItemClickListener {
29 void onItemClick(View view, int position);
30 }
31
32 private OnItemClickListener onItemClickListener;
33
34 public void setOnItemClickListener(OnItemClickListener listener) {
35 onItemClickListener = listener;
36 }
37
38 public AppAdapter(Context context, List<DataItem> list) {
39 this.context = context;
40 this.list = list;
41 }
42
43 @Override
44 public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
45 MyViewHolder holder = new MyViewHolder(LayoutInflater.from(context).inflate(
46 R.layout.fragment_app_item, null));
47 return holder;
48 }
49
50 @Override
51 public void onBindViewHolder(final MyViewHolder holder,
52 final int position) {
53 DataItem info = list.get(position);
54 String tag = (String) holder.imageView.getTag();
55
56 if (!info.getName().equals(tag)) {
57 holder.imageView.setImageBitmap(((BitmapDrawable) list.get(position)
58 .getImage()).getBitmap());
59 holder.imageView.setTag(info.getName());
60 }
61
62 if (info.isSelect()) {
63 holder.imageView.setAlpha(0.3f);
64 holder.appName.setAlpha(0.3f);
65 holder.appSize.setAlpha(0.3f);
66 holder.app_choice.setVisibility(View.VISIBLE);
67 } else {
68 holder.imageView.setAlpha(1.0f);
69 holder.appName.setAlpha(1.0f);
70 holder.appSize.setAlpha(1.0f);
71 holder.app_choice.setVisibility(View.GONE);
72 }
73
74 holder.appName.setText(info.getDisplayName());
75 holder.appSize.setText("" + DeviceUtils.convertByte(info.getSize()));
76
77 holder.itemView.setOnClickListener(new View.OnClickListener() {
78 @Override
79 public void onClick(View v) {
80 if (onItemClickListener != null) {
81 int pos = holder.getLayoutPosition();
82 onItemClickListener.onItemClick(holder.itemView, pos);
83 }
84 }
85 });
86 }
87
88 @Override
89 public int getItemCount() {
90 if (list != null) {
91 return list.size();
92 } else {
93 return 0;
94 }
95 }
96
97 public DataItem getItem(int position) {
98 return list.get(position);
99 }
100
101 class MyViewHolder extends RecyclerView.ViewHolder {
102 ImageView imageView;
103 ImageView app_choice;
104 TextView appName;
105 TextView appSize;
106
107 public MyViewHolder(View view) {
108 super(view);
109 imageView = (ImageView) view.findViewById(R.id.appImage);
110
111 params = (RelativeLayout.LayoutParams) imageView.getLayoutParams();
112 params.width = DensityUtils.getScreenWidth(context) / 6;
113 params.height = params.width;
114 imageView.setLayoutParams(params);
115
116 appName = (TextView) view.findViewById(R.id.appName);
117 appSize = (TextView) view.findViewById(R.id.appSize);
118 app_choice = (ImageView) view.findViewById(R.id.appSelect_image);
119 }
120 }
121 }
更新数据
http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/1118/2004.html