点击cardview中的特定TextView后，我没有得到如何进行不同的活动。以下是我项目的文件。 THANKYOU
ChemicalAdapter.java
package com.example.tejask.chemilife_project;
import android.support.v7.widget.CardView;
import android.support.v7.widget.RecyclerView;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
/**
* Created by tejas k on 29-09-2015.
*/
public class ChemicalAdapter extends RecyclerView.Adapter<ChemicalAdapter.ViewHolder> {
List<NatureItem>mItems;
public ChemicalAdapter() {
super();
mItems = new ArrayList<>();
NatureItem nature = new NatureItem();
nature.setName("RO Chemicals");
nature.setDes("Accepta's range of high performance reverse osmosis chemicals " +
"They are based on advanced formulations and include RO membrane cleaners and detergents," +
" scale inhibitors and antiscalants, corrosion inhibitors, biocides, antifoulants, de-chlorinators and flocculants.");
mItems.add(nature);
nature= new NatureItem();
nature.setName("Boiler Chemicals");
nature.setDes("This range of chemicals are “all in one boiler treatments” which incorporate a boiler water oxygen scavenger, alkalinity builder, polymer sludge conditioner and, where appropriate, a phosphate treatment. " +
"They are matched to the feed water quality to ensure that the correct boiler water chemistry is achieved.");
mItems.add(nature);
nature= new NatureItem();
nature.setDes(" Cooling Tower water chemical programs are effectively used for the reduction and prevention of the three major issues " +
" your industrial cooling water system may encounter: corrosion, deposition, and microbial growth.");
nature.setName("Cooling Tower Chemicals");
mItems.add(nature);
nature= new NatureItem();
nature.setName("Sugar Processing Chemicals");
nature.setDes("The Sugar cane processing chemicals are widely used in Sugar mills. They are used for processing," +
"Sugarcane in a handy way.Our company provides various types of Sugar Processing Chemicals at an affordable price");
mItems.add(nature);
nature= new NatureItem();
nature.setName("Effuleant Treatment Chemicals");
nature.setDes("We provide various types of Effuleant Treatment Chemicals");
mItems.add(nature);
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int i){
View v = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_card_view, parent, false);
ViewHolder viewHolder = new ViewHolder(v);
return viewHolder;
}
@Override
public void onBindViewHolder(ChemicalAdapter.ViewHolder viewHolder, int position) {
NatureItem nature = mItems.get(position);
viewHolder.tvNature.setText(nature.getName());
viewHolder.tvDesNature.setText(nature.getDes());
// viewHolder.tvDesNature.setOnClickListener(this);
// viewHolder.imgThumbnail.setImageResource(nature.getThumbnail());
}
@Override
public int getItemCount() {
return mItems.size();
}
class ViewHolder extends RecyclerView.ViewHolder{
// public ImageView imgThumbnail;
public TextView tvNature;
public TextView tvDesNature;
public ViewHolder(View itemView){
super(itemView);
tvNature = (TextView) itemView.findViewById(R.id.tv_nature);
tvDesNature=(TextView)itemView.findViewById(R.id.tv_des_nature);
}
}
}
This below class is for declaring getters and setters
NatureItem.java
package com.example.tejask.chemilife_project;
/**
* Created by tejas k on 29-09-2015.
*/
public class NatureItem {
private String Name;
private String Des;
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
}
public String getDes() {
return Des;
}
public void setDes(String des) {
Des = des;
}
}
The below class is Activity where the CardViews are shown along with RecyclerView.
CardActivity.java
package com.example.tejask.chemilife_project;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.view.Menu;
import android.view.MenuItem;
/ ** *由tejas k于29-09-2015创建。 * / 公共类CardActivity扩展了AppCompatActivity {
RecyclerView recyclerView;
RecyclerView.LayoutManager layoutManager;
RecyclerView.Adapter mAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.cardview);
recyclerView= (RecyclerView) findViewById(R.id.recycler_view);
recyclerView.setHasFixedSize(true);
layoutManager= new LinearLayoutManager(this);
recyclerView.setLayoutManager(layoutManager);
mAdapter = new ChemicalAdapter();
recyclerView.setAdapter(mAdapter);
}
}
In below file I have declared the Recyclerview.
cardview.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:orientation="vertical"
android:layout_height="match_parent">
<android.support.v7.widget.RecyclerView
android:id="@+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="20dp"
android:layout_gravity="center"
/></LinearLayout>
In the below file. I have declared the cardview along with Textview. It serves as an UI for the activity.
recycler_card_view.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:card_view="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:orientation="vertical"
android:background="#db7093"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Click Them To Know Details"
android:gravity="center"
android:textSize="20dp"/>
<android.support.v7.widget.CardView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
card_view:cardCornerRadius="3dp"
android:layout_marginTop="15dp"
android:layout_marginLeft="9dp"
android:layout_marginRight="9dp"
android:id="@+id/cardview"
android:foreground="?android:attr/selectableItemBackground"
card_view:cardElevation="0.01dp"
android:layout_marginBottom="0dp">
<RelativeLayout
android:id="@+id/top_layout"
android:layout_width="fill_parent"
android:layout_height="200dp"
android:background="#db7093">
<TextView
android:id="@+id/tv_nature"
android:layout_width="fill_parent"
android:layout_height="50dp"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:layout_gravity="bottom"
android:gravity="center_vertical"
android:background="#006666"
android:alpha="0.8"
android:textColor="#fff"
android:textSize="26sp"
android:text="Test"
android:layout_alignParentLeft="true"
android:layout_alignParentStart="true" />
<TextView
android:layout_below="@+id/tv_nature"
android:id="@+id/tv_des_nature"
android:layout_width="match_parent"
android:layout_height="125dp"
android:textSize="22dp"
android:onClick="true"
android:textColor="#006666"/>
</RelativeLayout>
</android.support.v7.widget.CardView>
</LinearLayout>
答案 0 :(得分：1)
首先，onClick属性应指定调用的方法的名称。所以，而不是
android:onClick="true"
在您的布局定义中，它应该类似于
android:onClick="onClickHandler"
然后在您的Activity子类中定义它：
public void onClickHandler(View v) {
// obtain myValue
Intent intent = new Intent(this, AnotherActivity.class);
intent.putExtra("my_key", myValue);
startActivity(intent);
}