Android 如果我使用recyclerview，当我长时间单击项目上的任何位置时，如何选择单选按钮

当我长时间点击物品时，我在RecyclerView中的select单选按钮出现问题

目前，我已经设置了RecyclerView，有一个默认的LayoutManager，还有一个显示所有数据的适配器。我最近刚刚让onClickListener（）工作（尽管我不确定它应该放在onCreateViewHolder（）还是onBindViewHolder*（-不确定何时调用onBindViewHolder（））

我的SingleRow XML

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="80dp"

>


<ImageView
    android:id="@+id/item_icon"
    android:layout_width="64dp"
    android:layout_height="64dp"
    android:layout_alignParentLeft="true"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginTop="1dp"
    android:layout_marginBottom="1dp"
    android:contentDescription="icon"
    android:src="@drawable/ic_launcher"
    />


<TextView
    android:id="@+id/item_title"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_toRightOf="@+id/item_icon"
    android:layout_alignBaseline="@+id/item_icon"
    android:textColor="@android:color/darker_gray"
    android:layout_marginLeft="8dp"
    android:layout_marginRight="8dp"
    android:layout_marginTop="8dp"
    android:textSize="22dp" />

<RadioButton
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:id="@+id/radioButton"
    android:layout_centerVertical="true"
    android:layout_alignParentRight="true"
    android:layout_alignParentEnd="true" />

带有单选模式和ViewHolder的我的适配器

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private static RadioButton lastChecked = null;
private static int lastCheckedPos = 0;
Context context;
private ArrayList<ItemData> itemsDatas;


public MyAdapter(ArrayList<ItemData> itemsDatas) {
    this.itemsDatas = itemsDatas;
}


@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {

    View itemLayoutView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_layout, null);


    ViewHolder viewHolder = new ViewHolder(itemLayoutView);
    return viewHolder;
}


@Override
public void onBindViewHolder(ViewHolder viewHolder, final int position) {


    if (position == 0 && itemsDatas.get(0).isSelected() && viewHolder.radioButton.isChecked()) {
        viewHolder.radioButton.setActivated(true);
        viewHolder.radioButton.setSelected(true);
        lastChecked = viewHolder.radioButton;
        lastCheckedPos = 0;
    }

    viewHolder.txtViewTitle.setText(itemsDatas.get(position).getTitle1());

    viewHolder.imgViewIcon.setImageResource(itemsDatas.get(position).getImageUrl());

    viewHolder.radioButton.setTag(this);
    viewHolder.radioButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            RadioButton cb = (RadioButton) v;


            if (cb.isChecked()) {
                if (lastChecked != null) {
                    lastChecked.setChecked(false);
                    itemsDatas.get(lastCheckedPos).setIsSelected(false);
                }

                lastChecked = cb;
                lastCheckedPos = position;
            } else
                lastChecked = null;

            itemsDatas.get(position).setIsSelected(cb.isChecked());
        }
    });


}


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

public static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {

    public TextView txtViewTitle;
    public ImageView imgViewIcon;
    public RadioButton radioButton;


    public ViewHolder(View itemLayoutView) {
        super(itemLayoutView);
        itemLayoutView.setOnClickListener(this);
        itemLayoutView.setOnLongClickListener(this);
        txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
        imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
        radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    }

    @Override
    public void onClick(View v) {
        Log.d("TAG", "onClick " + getPosition() + " " + txtViewTitle.getText().toString());
    }

    @Override
    public boolean onLongClick(View v) {
        Log.d("TAG", "onLongClick " + getPosition() + " " + txtViewTitle.getText().toString());
        return true;
    }
}}

 class ViewHolder extends RecyclerView.ViewHolder {

public TextView txtViewTitle;
public ImageView imgViewIcon;
public RadioButton radioButton;


public ViewHolder(View itemLayoutView) {
    super(itemLayoutView);

    .
    txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
    imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
    radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    itemLayoutView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        //what ever you want
        }
    });
    itemLayoutView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if(!radioButton.isSelected()){
                radioButton.setSelected(true);
            }else{
                radioButton.setSelected(false);
            }
            return false;
        }
    });
}

公共类MyAdapter扩展了RecyclerView.Adapter{ 私人静态RadioButton lastChecked=null； 私有静态int lastCheckedPos=0； 语境； 私有数组列表项数据； 公共MyAdapter（ArrayList itemsDatas）{ this.itemsDatas=itemsDatas； } @凌驾 public MyAdapter.ViewHolder onCreateViewHolder（视图组父级， int视图类型）{ View itemLayoutView=LayoutFlater.from（parent.getContext（）） .充气（R.layout.item_布局，空）； ViewHolder ViewHolder=新的ViewHolder（itemLayoutView）； 返回视图持有者； } @凌驾 公共无效onBindViewHolder（ViewHolder ViewHolder，最终int位置）{ if（position==0&&itemsDatas.get（0.isSelected（）&&viewHolder.radioButton.isChecked（））{ viewHolder.radioButton.setActivated（真）； viewHolder.radioButton.setSelected（真）； lastChecked=viewHolder.radioButton； lastCheckedPos=0； } viewHolder.txtViewTitle.setText（itemsDatas.get（position.getTitle1（））； viewHolder.imgViewIcon.setImageResource（itemsDatas.get（position.getImageUrl（））； viewHolder.radioButton.setTag（此）； viewHolder.radioButton.setOnClickListener（新视图.OnClickListener（）{ @凌驾 公共void onClick（视图v）{ 单选按钮cb=（单选按钮）v； if（cb.isChecked（））{ 如果（lastChecked！=null）{ lastChecked.setChecked（false）； itemsDatas.get（lastCheckedPos.setIsSelected）（false）； } 最后检查=cb； lastCheckedPos=位置； }否则 lastChecked=null； itemsDatas.get（position）.setIsSelected（cb.isChecked（））； } }); } @凌驾 public int getItemCount（）{ 返回itemsDatas.size（）； } 公共静态类ViewHolder扩展了RecyclerView.ViewHolder实现了View.OnClickListener、View.OnLongClickListener{ 公共文本视图txtViewTitle； 公共图像视图imgViewIcon； 公共单选按钮单选按钮； 公共视图持有者（视图项布局视图）{ 超级（itemLayoutView）； itemLayoutView.setOnClickListener（此）； itemLayoutView.setOnLongClickListener（此）； txtViewTitle=（TextView）itemLayoutView.findViewById（R.id.item_title）； imgViewIcon=（ImageView）itemLayoutView.findViewById（R.id.item_图标）； radioButton=（radioButton）itemLayoutView.findViewById（R.id.radioButton）； } @凌驾 公共void onClick（视图v）{ Log.d（“TAG”、“onClick”+getPosition（）+“”+txtViewTitle.getText（）.toString（））； } @凌驾 仅长按公共布尔值（视图v）{ Log.d（“TAG”、“onLongClick”+getPosition（）+“”+txtViewTitle.getText（）.toString（））； 返回true； } }} 当我点击单选按钮，这是工作，但我想要的是，当我长按项目的任何地方，我想选择这个项目的单选按钮 当我点击项目的任何地方时，我不想将其用于其他工作

我试过很多解决办法 但没有成功

---

非常感谢您的帮助。谢谢。

如果我没有弄错，您是在问您应该在哪里设置

onLongClickListener

，在这种情况下，请修改

onCreateViewHolder

方法，如下所示：

@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {

    View itemLayoutView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_layout, null);

   itemLayoutView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            //do something
            return true;
        }
    });
    ViewHolder viewHolder = new ViewHolder(itemLayoutView);
    return viewHolder;
}

---

如果我没有弄错，您会询问应该在哪里设置

onlongclicklister

，在这种情况下，请修改

onCreateViewHolder

方法，如下所示：

@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {

    View itemLayoutView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_layout, null);

   itemLayoutView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            //do something
            return true;
        }
    });
    ViewHolder viewHolder = new ViewHolder(itemLayoutView);
    return viewHolder;
}

---

这是ViewHolder的修订版

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private static RadioButton lastChecked = null;
private static int lastCheckedPos = 0;
Context context;
private ArrayList<ItemData> itemsDatas;


public MyAdapter(ArrayList<ItemData> itemsDatas) {
    this.itemsDatas = itemsDatas;
}


@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {

    View itemLayoutView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_layout, null);


    ViewHolder viewHolder = new ViewHolder(itemLayoutView);
    return viewHolder;
}


@Override
public void onBindViewHolder(ViewHolder viewHolder, final int position) {


    if (position == 0 && itemsDatas.get(0).isSelected() && viewHolder.radioButton.isChecked()) {
        viewHolder.radioButton.setActivated(true);
        viewHolder.radioButton.setSelected(true);
        lastChecked = viewHolder.radioButton;
        lastCheckedPos = 0;
    }

    viewHolder.txtViewTitle.setText(itemsDatas.get(position).getTitle1());

    viewHolder.imgViewIcon.setImageResource(itemsDatas.get(position).getImageUrl());

    viewHolder.radioButton.setTag(this);
    viewHolder.radioButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            RadioButton cb = (RadioButton) v;


            if (cb.isChecked()) {
                if (lastChecked != null) {
                    lastChecked.setChecked(false);
                    itemsDatas.get(lastCheckedPos).setIsSelected(false);
                }

                lastChecked = cb;
                lastCheckedPos = position;
            } else
                lastChecked = null;

            itemsDatas.get(position).setIsSelected(cb.isChecked());
        }
    });


}


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

public static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {

    public TextView txtViewTitle;
    public ImageView imgViewIcon;
    public RadioButton radioButton;


    public ViewHolder(View itemLayoutView) {
        super(itemLayoutView);
        itemLayoutView.setOnClickListener(this);
        itemLayoutView.setOnLongClickListener(this);
        txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
        imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
        radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    }

    @Override
    public void onClick(View v) {
        Log.d("TAG", "onClick " + getPosition() + " " + txtViewTitle.getText().toString());
    }

    @Override
    public boolean onLongClick(View v) {
        Log.d("TAG", "onLongClick " + getPosition() + " " + txtViewTitle.getText().toString());
        return true;
    }
}}

 class ViewHolder extends RecyclerView.ViewHolder {

public TextView txtViewTitle;
public ImageView imgViewIcon;
public RadioButton radioButton;


public ViewHolder(View itemLayoutView) {
    super(itemLayoutView);

    .
    txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
    imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
    radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    itemLayoutView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        //what ever you want
        }
    });
    itemLayoutView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if(!radioButton.isSelected()){
                radioButton.setSelected(true);
            }else{
                radioButton.setSelected(false);
            }
            return false;
        }
    });
}

---

这是ViewHolder的修订版

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
private static RadioButton lastChecked = null;
private static int lastCheckedPos = 0;
Context context;
private ArrayList<ItemData> itemsDatas;


public MyAdapter(ArrayList<ItemData> itemsDatas) {
    this.itemsDatas = itemsDatas;
}


@Override
public MyAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
                                               int viewType) {

    View itemLayoutView = LayoutInflater.from(parent.getContext())
            .inflate(R.layout.item_layout, null);


    ViewHolder viewHolder = new ViewHolder(itemLayoutView);
    return viewHolder;
}


@Override
public void onBindViewHolder(ViewHolder viewHolder, final int position) {


    if (position == 0 && itemsDatas.get(0).isSelected() && viewHolder.radioButton.isChecked()) {
        viewHolder.radioButton.setActivated(true);
        viewHolder.radioButton.setSelected(true);
        lastChecked = viewHolder.radioButton;
        lastCheckedPos = 0;
    }

    viewHolder.txtViewTitle.setText(itemsDatas.get(position).getTitle1());

    viewHolder.imgViewIcon.setImageResource(itemsDatas.get(position).getImageUrl());

    viewHolder.radioButton.setTag(this);
    viewHolder.radioButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            RadioButton cb = (RadioButton) v;


            if (cb.isChecked()) {
                if (lastChecked != null) {
                    lastChecked.setChecked(false);
                    itemsDatas.get(lastCheckedPos).setIsSelected(false);
                }

                lastChecked = cb;
                lastCheckedPos = position;
            } else
                lastChecked = null;

            itemsDatas.get(position).setIsSelected(cb.isChecked());
        }
    });


}


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

public static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener, View.OnLongClickListener {

    public TextView txtViewTitle;
    public ImageView imgViewIcon;
    public RadioButton radioButton;


    public ViewHolder(View itemLayoutView) {
        super(itemLayoutView);
        itemLayoutView.setOnClickListener(this);
        itemLayoutView.setOnLongClickListener(this);
        txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
        imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
        radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    }

    @Override
    public void onClick(View v) {
        Log.d("TAG", "onClick " + getPosition() + " " + txtViewTitle.getText().toString());
    }

    @Override
    public boolean onLongClick(View v) {
        Log.d("TAG", "onLongClick " + getPosition() + " " + txtViewTitle.getText().toString());
        return true;
    }
}}

 class ViewHolder extends RecyclerView.ViewHolder {

public TextView txtViewTitle;
public ImageView imgViewIcon;
public RadioButton radioButton;


public ViewHolder(View itemLayoutView) {
    super(itemLayoutView);

    .
    txtViewTitle = (TextView) itemLayoutView.findViewById(R.id.item_title);
    imgViewIcon = (ImageView) itemLayoutView.findViewById(R.id.item_icon);
    radioButton = (RadioButton) itemLayoutView.findViewById(R.id.radioButton);
    itemLayoutView.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
        //what ever you want
        }
    });
    itemLayoutView.setOnLongClickListener(new View.OnLongClickListener() {
        @Override
        public boolean onLongClick(View v) {
            if(!radioButton.isSelected()){
                radioButton.setSelected(true);
            }else{
                radioButton.setSelected(false);
            }
            return false;
        }
    });
}

---

我看不出你在哪里设置了单选按钮的长点击监听器@cricket_007的可能副本你可以在公共静态类viewholder中看到它。你的长点击似乎对单选按钮没有任何作用，这就是我的意思say@cricket_007我看到了这个链接，但没有帮助我看不到你在哪里设置了长点击监听器f或者单选按钮@cricket_007的可能副本，你可以在公共静态类viewholder中看到它。你长时间的点击似乎对单选按钮没有任何作用，这就是我想要的say@cricket_007我看到了这个链接，但没有帮助。我的问题是，当我长时间单击项目时，如何选择RadioButton。我的问题是如何选择RadioButton当我长时间点击项目谢谢但不成功谢谢但不成功