Recyclerview单品选择器

  • Z时代
  • 2024-01-10
  • 分类：问答

我为我的RecyclerView商品添加了选择器背景，但我一次只能选择单件商品。即如果选择了一个项目，则不能选择其余的项目。我怎样才能做到这一点？Recyclerview单品选择器

这里是我的适配器类

public class VisaTypeAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { 
    Context context; 
    private List<VisaType> visaTypeList; 
    int selected_position; 
    public VisaTypeAdapter(Context context, List<VisaType> visaTypeList) { 
     this.context = context; 
     this.visaTypeList = visaTypeList; 
    } 
    @Override 
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.visa_type_row, parent, false); 
     return new jp.workjapan.adapters.VisaTypeAdapter.ViewHolder(view); 
    } 
    @Override 
    public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) { 
     final VisaType a = visaTypeList.get(position); 
     final jp.workjapan.adapters.VisaTypeAdapter.ViewHolder viewHolder = (jp.workjapan.adapters.VisaTypeAdapter.ViewHolder) holder; 
     viewHolder.visa_eng.setText(a.getName_en()); 
     viewHolder.visa_jp.setText(a.getName_jp()); 
     final long id = a.getId(); 
     if (id == AppSingleTon.visaType) { 
      viewHolder.visa_layout.setSelected(true); 
     } else { 
      viewHolder.visa_layout.setSelected(false); 
     } 
     viewHolder.visa_layout.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       if (viewHolder.visa_layout.isSelected()) { 
        viewHolder.visa_layout.setSelected(false); 
       } else { 
        viewHolder.visa_layout.setSelected(true); 
        AppSingleTon.visaType = id; 
        selected_position = position; 
       } 
      } 
     }); 
    } 
}

回答：

这是我的样品溶液：

public class VisaTypeAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> { 
    Context context; 
    private List<VisaType> visaTypeList; 
    int selected_position; 
    public VisaTypeAdapter(Context context, List<VisaType> visaTypeList) { 
     this.context = context; 
     this.visaTypeList = visaTypeList; 
    } 
    @Override 
    public RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
     View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.visa_type_row, parent, false); 
     return new jp.workjapan.adapters.VisaTypeAdapter.ViewHolder(view); 
    } 
    @Override 
    public void onBindViewHolder(final RecyclerView.ViewHolder holder, final int position) { 
     final VisaType a = visaTypeList.get(position); 
     final jp.workjapan.adapters.VisaTypeAdapter.ViewHolder viewHolder = (jp.workjapan.adapters.VisaTypeAdapter.ViewHolder) holder; 
     viewHolder.visa_eng.setText(a.getName_en()); 
     viewHolder.visa_jp.setText(a.getName_jp()); 
     final long id = a.getId(); 
     if (id == AppSingleTon.visaType) { 
      viewHolder.visa_layout.setSelected(true); 
     } else { 
      viewHolder.visa_layout.setSelected(false); 
     } 
     if (position == selected_position) { 
      viewHolder.visa_layout.setSelected(true); 
     } else { 
      viewHolder.visa_layout.setSelected(false); 
     } 
     viewHolder.visa_layout.setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View view) { 
       selected_position = getAdapterPosition(); 
       notifyDataSetChanged(); 
      } 
     }); 
    } 
}

希望它可以帮助你...... 感谢

以上是 Recyclerview单品选择器 的全部内容， 来源链接： utcz.com/qa/261535.html

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