为`recyclerView`中的每个`button`设置不同的`onclick listener`

Question

您好，我正在制作一个包含游戏 (gtav) 作弊码的作弊应用程序，我如何为 recyclerView 中的每个 button 设置不同的 onclicklistener。 例如，我在recyclerView 中有一个名为copytoclip board 的button，我希望recyclerView 中的每个button 复制不同的文本。 我该怎么做？

recycler_view_list

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:focusable="true"
    android:paddingLeft="16dp"
    android:paddingRight="16dp"
    android:paddingTop="10dp"
    android:paddingBottom="10dp"
    android:clickable="true"
    android:background="?android:attr/selectableItemBackground"
    android:orientation="vertical">

<TextView
    android:id="@+id/title"
    android:textSize="16dp"
    android:textStyle="bold"
    android:layout_alignParentTop="true"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<TextView
    android:id="@+id/cheat"
    android:layout_below="@id/title"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

<TextView
    android:id="@+id/description"
    android:layout_below="@+id/cheat"
    android:layout_gravity="bottom"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" />

<Button
 android:layout_height="wrap_content"
 android:layout_width="wrap_content"
 android:text="Copy"

    android:id="@+id/cpytocp"
    android:layout_gravity="top|right" />

</LinearLayout>

列表

public class Cheats {
    private String title, cheat, description;

    public Cheats(){

    }
    public Cheats( String title, String cheat, String description){
        this.title = title;
        this.cheat = cheat;
        this.description = description;
    }

    public String getTitle(){
        return title;
    }
    public void setTitle(String name){
        this.title = name;
    }
    public String getCheat(){
        return cheat;
    }
    public void setCheat(String cheat){
        this.cheat = cheat;
    }
    public String getDescription(){
        return description;
    }

    public void setDescription(String description) {
        this.description = description;
    }
}

适配器

`public class CheatsAdapter extends` `RecyclerView.Adapter`<CheatsAdapter.MyViewHolder> `{`

private List<Cheats> cheatList;
public class MyViewHolder extends RecyclerView.ViewHolder{
    public TextView title, cheat, description;

    public MyViewHolder(View view){
        super(view);
        title = (TextView)view.findViewById(R.id.title);
        cheat = (TextView) view.findViewById(R.id.cheat);
        description = (TextView) view.findViewById(R.id.description);
    }
}

public CheatsAdapter(List<Cheats> cheatList){
    this.cheatList = cheatList;
}

@Override
public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
    View itemView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.cheat_list, parent, false);

    return new MyViewHolder(itemView);
}

@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
    Cheats cheats = cheatList.get(position);
    holder.title.setText(cheats.getTitle());
    holder.cheat.setText(cheats.getCheat());
    holder.description.setText(cheats.getDescription());
}

@Override
public int getItemCount(){
    return cheatList.size();
}
}

Answer 1

@Override
public void onBindViewHolder(MyViewHolder holder, int position) {
    Cheats cheats = cheatList.get(position);
    holder.title.setText(cheats.getTitle());
    holder.cheat.setText(cheats.getCheat());
    holder.description.setText(cheats.getDescription());

    holder.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                // TO DO
                // if this happens to all the buttons..insert here a switch recognizing which button is pressed through getting an info of the button maybe

                }
            });

}

Answer 2

更改为您的适配器类

  public class CheatsAdapter extends` `RecyclerView.Adapter`<CheatsAdapter.MyViewHolder> `{`

    private List<Cheats> cheatList;
    public class MyViewHolder extends RecyclerView.ViewHolder{
        public TextView title, cheat, description;
        public Button btnClick;
        public MyViewHolder(View view){
            super(view);
            btnClick= (Button )view.findViewById(R.id.cpytocp);

            title = (TextView)view.findViewById(R.id.title);
            cheat = (TextView) view.findViewById(R.id.cheat);
            description = (TextView) view.findViewById(R.id.description);
        }
    }

    public CheatsAdapter(List<Cheats> cheatList){
        this.cheatList = cheatList;
    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType){
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.cheat_list, parent, false);

        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        Cheats cheats = cheatList.get(position);
btnClick.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                // do that you want to perform on click
            }
        });        holder.title.setText(cheats.getTitle());
        holder.cheat.setText(cheats.getCheat());
        holder.description.setText(cheats.getDescription());
    }

    @Override
    public int getItemCount(){
        return cheatList.size();
    }
    }

Answer 3

在按钮xml中添加onclick事件android:onClick="doSomething"

<Button
  android:layout_height="wrap_content"
  android:layout_width="wrap_content"
  android:text="Copy"
  android:id="@+id/cpytocp"
  android:layout_gravity="top|right" 
  android:onClick="copyToClipboard" />

然后你需要在你的activity/fragment中创建引用的方法：

public void copyToClipboard(View v) {
    ClipboardManager clipboard = (ClipboardManager) getSystemService(CLIPBOARD_SERVICE); 
    ClipData clip = ClipData.newPlainText(label, text);
    clipboard.setPrimaryClip(clip);
}

---

注意事项：

• 如果您想管理各种按钮/元素，您必须添加switch(v.getId()) 以了解单击了哪个元素
• copyToClipboard 代码以here 为例