安卓APP开发中最常见的就是列表了，安卓实现列表的方法很多，比如listview，RecyclerView等。RecyclerView相当于listview的升级版，提供更多方法，提高灵活性。我们在自定义item中加入按钮等控件后，如何监听是点击了整个item还是点击的按钮呢？不管怎么说，要实现监听事件，数据适配器必须暴露接口才行，下面我们一起来看看如何监听自定义RecyclerView列表中按钮的点击事件。
Android自定义RecyclerView列表中按钮的点击事件监听实现
item.xml布局
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<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="10dp"
android:background="#FFFFFF"
android:orientation="vertical"
android:paddingBottom="20dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:paddingTop="20dp">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="维修单号："
android:textSize="18dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/wxdh"
android:text="20190417"
android:textSize="18dp"
tools:layout_editor_absoluteX="90dp"
tools:layout_editor_absoluteY="0dp"
tools:ignore="MissingConstraints" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="设备名称："
android:textSize="16dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/sbname"
android:layout_marginBottom="5dp"
android:text="AR机械手"
android:textSize="16dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="设备编号："
android:textSize="16dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/sbcode"
android:layout_marginBottom="5dp"
android:text="CD-3443645756"
android:textSize="16dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="故障地址："
android:textSize="16dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/address"
android:layout_marginBottom="5dp"
android:text="B05/1F"
android:textSize="16dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="5dp"
android:text="故障现象："
android:textSize="16dp" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/content"
android:layout_marginBottom="5dp"
android:text="发生撞机"
android:textSize="16dp" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:background="#1ac107"
android:id="@+id/send"
android:text="立即发送"
android:textColor="#FFFFFF"
android:textSize="18dp" />
<Button
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:layout_marginTop="10dp"
android:layout_weight="1"
android:background="#e11534"
android:id="@+id/delete"
android:text="删除"
android:textColor="#FFFFFF"
android:textSize="18dp" />
</LinearLayout>
</LinearLayout>
</LinearLayout>数据实体类
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public class zxbx_dfd {
private String wxdh, sbname, sbcode, address, content;
public zxbx_dfd(String wxdh, String sbname, String sbcode, String address, String content) {
this.wxdh = wxdh;
this.sbname = sbname;
this.sbcode = sbcode;
this.address = address;
this.content = content;
}
public String getWxdh() {
return wxdh;
}
public String getSbname() {
return sbname;
}
public String getSbcode() {
return sbcode;
}
public String getAddress() {
return address;
}
public String getContent() {
return content;
}
}重点，适配器MyRecyclerViewAdapter 类
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public class MyRecyclerViewAdapter extends RecyclerView.Adapter<MyRecyclerViewAdapter.MyViewHolder> implements View.OnClickListener{
private List<zxbx_dfd> list;//数据源
private Context context;//上下文
public MyRecyclerViewAdapter(List<zxbx_dfd> list, Context context) {
this.list = list;
this.context = context;
}
@NonNull
@Override
public MyViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.zxbx_fd_item,parent,false);
return new MyViewHolder(view);
}
//绑定
@Override
public void onBindViewHolder(@NonNull MyViewHolder holder, int position) {
zxbx_dfd data = list.get(position);
holder.wxdh.setText(data.getWxdh());
holder.sbname.setText(data.getSbname());
holder.sbcode.setText(data.getSbcode());
holder.address.setText(data.getAddress());
holder.content.setText(data.getContent());
holder.itemView.setTag(position);
holder.send.setTag(position);
holder.delete.setTag(position);
}
//有多少个item
@Override
public int getItemCount() {
return list.size();
}
//创建MyViewHolder继承RecyclerView.ViewHolder
public class MyViewHolder extends RecyclerView.ViewHolder{
private TextView wxdh,sbname,sbcode,address,content;
private Button send,delete;
public MyViewHolder(View itemView) {
super(itemView);
wxdh = (TextView) itemView.findViewById(R.id.wxdh);
sbname = (TextView) itemView.findViewById(R.id.sbname);
sbcode = (TextView) itemView.findViewById(R.id.sbcode);
address = (TextView) itemView.findViewById(R.id.address);
content = (TextView) itemView.findViewById(R.id.content);
send = (Button) itemView.findViewById(R.id.send);
delete = (Button) itemView.findViewById(R.id.delete);
// 为ItemView添加点击事件
itemView.setOnClickListener(MyRecyclerViewAdapter.this);
send.setOnClickListener(MyRecyclerViewAdapter.this);
delete.setOnClickListener(MyRecyclerViewAdapter.this);
}
}
//=======================以下为item中的button控件点击事件处理===================================
//item里面有多个控件可以点击
public enum ViewName {
ITEM,
PRACTISE
}
//自定义一个回调接口来实现Click和LongClick事件
public interface OnItemClickListener {
void onItemClick(View v, ViewName viewName, int position);
void onItemLongClick(View v);
}
private OnItemClickListener mOnItemClickListener;//声明自定义的接口
//定义方法并暴露给外面的调用者
public void setOnItemClickListener(OnItemClickListener listener) {
this.mOnItemClickListener = listener;
}
@Override
public void onClick(View v) {
int position = (int) v.getTag(); //getTag()获取数据
if (mOnItemClickListener != null) {
switch (v.getId()){
case R.id.recycler_view:
mOnItemClickListener.onItemClick(v, ViewName.PRACTISE, position);
break;
default:
mOnItemClickListener.onItemClick(v, ViewName.ITEM, position);
break;
}
}
}
}在Activity或Fragment中使用
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public class bx_dfd extends Fragment {
private List<zxbx_dfd> fruitList = new ArrayList<>();
@Nullable
@Override
public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
View mView = inflater.inflate(R.layout.baoxiu_d, null);
fruitList.clear();
for(int i=0;i<10;i++){
fruitList.add(new zxbx_dfd("201904171826"+i,"AR机械手"+i,"CD-4235345436","B01/2F","撞机撞机"));
}
RecyclerView recyclerView = (RecyclerView) mView.findViewById(R.id.recycler_view);
LinearLayoutManager layoutManager = new LinearLayoutManager(getActivity());
recyclerView.setLayoutManager(layoutManager);
MyRecyclerViewAdapter adapter = new MyRecyclerViewAdapter(fruitList,getActivity());
recyclerView.setAdapter(adapter);
adapter.setOnItemClickListener(new MyRecyclerViewAdapter.OnItemClickListener() {
@Override
public void onItemClick(View v, MyRecyclerViewAdapter.ViewName viewName, int position) {
switch (v.getId()){
case R.id.send:
Toast.makeText(getActivity(),"你点击了发送按钮"+(position+1),Toast.LENGTH_SHORT).show();
break;
case R.id.delete:
Toast.makeText(getActivity(),"你点击了删除按钮"+(position+1),Toast.LENGTH_SHORT).show();
break;
default:
Toast.makeText(getActivity(),"你点击了item"+(position+1),Toast.LENGTH_SHORT).show();
break;
}
}
@Override
public void onItemLongClick(View v) {
}
});
return mView;
}
}安卓中关于列表的使用必须要有三要素，数据实体类、数据适配器类、还有就是实现类，自定义的列表还需要item布局文件。
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