引入的包:

demo结构:

测试代码:

News.java:

package com.zzw.testcardview;

import java.io.Serializable;

public class News implements Serializable {

    // 新闻标题,内容,图片
private String title;
private String desc;
private int photoId; public News(String title, String desc, int photoId) {
super();
this.title = title;
this.desc = desc;
this.photoId = photoId;
} public String getTitle() {
return title;
} public void setTitle(String title) {
this.title = title;
} public String getDesc() {
return desc;
} public void setDesc(String desc) {
this.desc = desc;
} public int getPhotoId() {
return photoId;
} public void setPhotoId(int photoId) {
this.photoId = photoId;
}
}

MainActivity.java:

package com.zzw.testcardview;

import java.util.ArrayList;
import java.util.List; import android.app.Activity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView; public class MainActivity extends Activity { private RecyclerView recyclerView;
private List<News> newsList;
private RecyclerViewAdapter adapter; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main); LinearLayoutManager layoutManager = new LinearLayoutManager(this); recyclerView = (RecyclerView) findViewById(R.id.recyclerView); initPersonData();
adapter = new RecyclerViewAdapter(newsList, MainActivity.this); recyclerView.setHasFixedSize(true);
recyclerView.setLayoutManager(layoutManager);
recyclerView.setAdapter(adapter); } private void initPersonData() {
newsList = new ArrayList<>();
// 添加新闻
newsList.add(new News(getString(R.string.news_one_title),
getString(R.string.news_one_desc), R.drawable.news_one));
newsList.add(new News(getString(R.string.news_two_title),
getString(R.string.news_two_desc), R.drawable.news_two));
newsList.add(new News(getString(R.string.news_three_title),
getString(R.string.news_three_desc), R.drawable.news_three));
newsList.add(new News(getString(R.string.news_four_title),
getString(R.string.news_four_desc), R.drawable.news_four));
} }

RecyclerViewAdapter.java:

package com.zzw.testcardview;

import java.util.List;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.support.v7.widget.RecyclerView.Adapter;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView; public class RecyclerViewAdapter extends
Adapter<RecyclerViewAdapter.NewsViewHolder> { private List<News> newses;
private Context context; public RecyclerViewAdapter(List<News> newses, Context context) {
super();
this.newses = newses;
this.context = context;
} // 自定义ViewHolder类
static class NewsViewHolder extends RecyclerView.ViewHolder { CardView cardView;
ImageView news_photo;
TextView news_title;
TextView news_desc;
Button share;
Button readMore; public NewsViewHolder(View itemView) {
super(itemView);
cardView = (CardView) itemView.findViewById(R.id.card_view);
news_photo = (ImageView) itemView.findViewById(R.id.news_photo);
news_title = (TextView) itemView.findViewById(R.id.news_title);
news_desc = (TextView) itemView.findViewById(R.id.news_desc);
share = (Button) itemView.findViewById(R.id.btn_share);
readMore = (Button) itemView.findViewById(R.id.btn_more); // 设置TextView背景为半透明
news_title.setBackgroundColor(Color.argb(20, 0, 0, 0));
}
} @Override
public int getItemCount() { return newses == null ? 0 : newses.size();
} @Override
public void onBindViewHolder(
RecyclerViewAdapter.NewsViewHolder personViewHolder, int position) { final int j = position; personViewHolder.news_photo.setImageResource(newses.get(position)
.getPhotoId());
personViewHolder.news_title.setText(newses.get(position).getTitle());
personViewHolder.news_desc.setText(newses.get(position).getDesc()); // 为btn_share btn_readMore cardView设置点击事件
// 为btn_share btn_readMore cardView设置点击事件
personViewHolder.cardView
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(context, NewsActivity.class);
intent.putExtra("News", newses.get(j));
context.startActivity(intent);
}
}); personViewHolder.share.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Intent.ACTION_SEND);
intent.setType("text/plain");
intent.putExtra(Intent.EXTRA_SUBJECT, "分享");
intent.putExtra(Intent.EXTRA_TEXT, newses.get(j).getDesc());
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
context.startActivity(Intent.createChooser(intent, newses
.get(j).getTitle()));
}
}); personViewHolder.readMore
.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(context, NewsActivity.class);
intent.putExtra("News", newses.get(j));
context.startActivity(intent);
}
});
} @Override
public RecyclerViewAdapter.NewsViewHolder onCreateViewHolder(
ViewGroup viewGroup, int arg1) { View view = LayoutInflater.from(context).inflate(R.layout.news_item,
null);
NewsViewHolder nvh = new NewsViewHolder(view); return nvh;
} }

NewsActivity.java:

package com.zzw.testcardview;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.ImageView;
import android.widget.TextView; public class NewsActivity extends Activity{ private ImageView newsPhoto;
private TextView newsTitle;
private TextView newsDesc; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_news); newsPhoto= (ImageView) findViewById(R.id.news_info_photo);
newsTitle= (TextView) findViewById(R.id.news_info_title);
newsDesc= (TextView) findViewById(R.id.news_info_desc); Intent intent=getIntent(); News item= (News) intent.getSerializableExtra("News");
newsPhoto.setImageResource(item.getPhotoId());
newsTitle.setText(item.getTitle());
newsDesc.setText(item.getDesc()); }
}

布局代码:

activity_main.xml:

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent">
</android.support.v7.widget.RecyclerView>

news_item.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="5dp" > <!-- android:clickable="true" //cardView是否可点击,默认是不可点击的 -->
<!-- app:cardCornerRadius="3dp" //圆角 -->
<!-- app:cardElevation="8dp" //阴影 --> <android.support.v7.widget.CardView
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:clickable="true"
android:foreground="?android:attr/selectableItemBackground"
app:cardCornerRadius="3dp"
app:cardElevation="8dp" > <RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" > <RelativeLayout
android:id="@+id/news_header"
android:layout_width="match_parent"
android:layout_height="wrap_content" > <ImageView
android:id="@+id/news_photo"
android:layout_width="match_parent"
android:layout_height="150dp"
android:layout_alignParentTop="true"
android:scaleType="centerCrop" /> <TextView
android:id="@+id/news_title"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentLeft="true"
android:gravity="center"
android:maxLines="1"
android:padding="5dp"
android:textColor="#ffffff"
android:textSize="20sp" />
</RelativeLayout> <TextView
android:id="@+id/news_desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/news_header"
android:layout_margin="15dp"
android:maxLines="2" /> <LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="@+id/news_desc"
android:orientation="horizontal" > <Button
android:id="@+id/btn_share"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:layout_marginRight="20dp"
android:background="#00000000"
android:text="SHARE" /> <Button
android:id="@+id/btn_more"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#00000000"
android:text="READ MORE"
android:textColor="#7AD3E0" />
</LinearLayout>
</RelativeLayout>
</android.support.v7.widget.CardView> </RelativeLayout>

activity_news.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="20dp">
<android.support.v7.widget.CardView
android:id="@+id/card_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:foreground="?android:attr/selectableItemBackground"
android:clickable="true"
app:cardCornerRadius="3dp"
app:cardElevation="8dp"> <RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<RelativeLayout
android:id="@+id/news_header"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true">
<ImageView
android:id="@+id/news_info_photo"
android:scaleType="centerCrop"
android:layout_alignParentTop="true"
android:layout_width="match_parent"
android:layout_height="180dp"/>
<TextView
android:id="@+id/news_info_title"
android:layout_alignParentLeft="true"
android:layout_below="@+id/news_info_photo"
android:textSize="20sp"
android:padding="5dp"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
</RelativeLayout> <TextView
android:id="@+id/news_info_desc"
android:lineSpacingExtra="5dp"
android:layout_below="@+id/news_header"
android:layout_margin="15dp"
android:layout_width="wrap_content"
android:layout_height="wrap_content"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</RelativeLayout>

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