如何添加按钮功能列表视图

Question

我的代码...

ListView listView; 
SimpleCursorAdapter adapter; 
mydb = new DBHelper(this); 
Cursor cursor = mydb.fetch(); 
    listView = (ListView) findViewById(R.id.listView); 
    adapter = new SimpleCursorAdapter(this, R.layout.list, cursor, from, to, 0); 
    adapter.notifyDataSetChanged(); 
    listView.setAdapter(adapter); 
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() { 
     @Override 
     public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 

      id = (TextView) arg1.findViewById(R.id.id); 

      int id_To_Search = Integer.valueOf(id.getText().toString()); 

      Bundle dataBundle = new Bundle(); 
      dataBundle.putInt("_id", id_To_Search); 

      Intent intent = new Intent(getApplicationContext(), AddPatient.class); 

      intent.putExtras(dataBundle); 
      startActivity(intent); 
     } 
    }); 

我已经添加了一个按钮，每个列表。我如何使用该按钮作为与项目单击事件上的listview相同的功能？我怎样才能使用那个按钮？

Answer 1

首先，在列表项目布局中添加一个按钮。然后尝试创建自定义适配器，而不是使用SimpleCursorAdapter。 这里是例如自定义适配器的

public class MySimpleArrayAdapter extends ArrayAdapter<String> { 
     private final Context context; 
     private final String[] values; 

     public MySimpleArrayAdapter(Context context, String[] values) { 
       super(context, -1, values); 
       this.context = context; 
       this.values = values; 
     } 

     @Override 
     public View getView(int position, View convertView, ViewGroup parent) { 
       LayoutInflater inflater = (LayoutInflater) context 
           .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
       View rowView = inflater.inflate(R.layout.list, parent, false); 
       TextView textView = (TextView) rowView.findViewById(R.id.text); 
       Button button = (Button) rowView.findViewById(R.id.button); 
       textView.setText(values[position]); 
       // change the text for your list item 
       button.setOnClickListener(new View.OnClickListener() { 
         @Override 
         public void onClick(View view) { 
         // do whatever you want 
      } 
     }); 

     } 
} 

现在poplate字符串数组从光标

Answer 2

您可以在其上设置点击侦听器并将onItemClick的代码用于onclick。

public class AdHocDealsAdapter extends RecyclerView.Adapter<AdHocDealsAdapter.ViewHolder> { 
private final ArrayList<AdHocDealsModel> adHocDealsModelArrayList; 
View v; 
FragmentActivity context; 
private Bundle bundle; 
com.nostra13.universalimageloader.core.ImageLoader imageLoader = com.nostra13.universalimageloader.core.ImageLoader.getInstance(); 
DisplayImageOptions options = new DisplayImageOptions.Builder().cacheInMemory(true) 
     .cacheOnDisc(true).resetViewBeforeLoading(true). 
       build(); 

@Override 
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 
    v = LayoutInflater.from(parent.getContext()) 
      .inflate(R.layout.deals_list_item, parent, false); 
    ViewHolder viewHolder = new ViewHolder(v); 
    return viewHolder; 
} 

@Override 
public void onBindViewHolder(final ViewHolder holder, final int position) { 
    final AdHocDealsModel adHocDealsModel = adHocDealsModelArrayList.get(position); 
    holder.txt_c_title.setText(adHocDealsModel.name + ""); 
    holder.txt_c_category.setText(adHocDealsModel.category + ""); 
    holder.txt_c_vendor.setText(adHocDealsModel.vendor_name + ""); 
    holder.txt_c_discount.setText(adHocDealsModel.volume_of_deal + ""); 
    if (adHocDealsModel.like == AppDelegate.DISLIKE) { 
     holder.img_c_like_dislike.setSelected(false); 
    } else if (adHocDealsModel.like == AppDelegate.LIKE) { 
     holder.img_c_like_dislike.setSelected(true); 
    } 
    holder.img_c_like_dislike.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      if (new Prefs(context).getUserdata() != null) { 
       if (holder.img_c_like_dislike.isSelected()) { 
        holder.img_c_like_dislike.setSelected(false); 
       } else { 
        holder.img_c_like_dislike.setSelected(true); 
       } 
       if (DealsActivity.onListItemClickListener != null) { 
        DealsActivity.onListItemClickListener.setOnListItemClickListener(Tags.LIKE_DISLIKE_CLICKED, position, holder.img_c_like_dislike.isSelected()); 
       } 
      } else { 
       AppDelegate.showToast(context, " Please Login first."); 
      } 
     } 

    }); 
    holder.img_loading1.setVisibility(View.VISIBLE); 
    new Handler(Looper.getMainLooper()).post(new Runnable() { 
     @Override 
     public void run() { 
      AnimationDrawable frameAnimation = (AnimationDrawable) holder. img_loading1.getDrawable(); 
      frameAnimation.setCallback(holder.img_loading1); 
      frameAnimation.setVisible(true, true); 
      frameAnimation.start(); 
      ((Animatable) holder.img_loading1.getDrawable()).start(); 
     } 
    }); 
    imageLoader.loadImage(adHocDealsModel.image, options, new ImageLoadingListener() { 
     @Override 
     public void onLoadingStarted(String imageUri, View view) { 
     } 

     @Override 
     public void onLoadingFailed(String imageUri, View view, FailReason failReason) { 
     } 

     @Override 
     public void onLoadingComplete(String imageUri, View view, Bitmap loadedImage) { 
      holder.img_c_item_image.setImageBitmap(loadedImage); 
      holder.img_loading1.setVisibility(View.GONE); 
     } 

     @Override 
     public void onLoadingCancelled(String imageUri, View view) { 
     } 
    }); 
    holder.txt_c_viewdetail.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View v) { 
      Intent intent = new Intent(context, AdHocDealDetailActivity.class); 
      final Pair<View, String>[] pairs = TransitionHelper.createSafeTransitionParticipants(context, false, new Pair<>(holder.img_c_item_image, "square_blue_name_1")); 
      ActivityOptionsCompat transitionActivityOptions = ActivityOptionsCompat.makeSceneTransitionAnimation(context, pairs); 
      intent.putExtra(Tags.deal_id, adHocDealsModel.id); 
      context.startActivity(intent, transitionActivityOptions.toBundle()); 
     } 
    }); 

} 

public AdHocDealsAdapter(FragmentActivity context, ArrayList<AdHocDealsModel> adHocDealsModelArrayList) { 
    this.context = context; 
    this.adHocDealsModelArrayList = adHocDealsModelArrayList; 
    // this. ds=ds; 
} 

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


class ViewHolder extends RecyclerView.ViewHolder { 
    ImageView img_c_item_image, img_c_like_dislike; 
    TextView txt_c_title, txt_c_category, txt_c_vendor, txt_c_discount, txt_c_viewdetail; 
    android.widget.ImageView img_loading1; 

    public ViewHolder(View itemView) { 
     super(itemView); 
     img_c_item_image = (ImageView) itemView.findViewById(R.id.img_c_item_image); 
     img_loading1 = (android.widget.ImageView) itemView.findViewById(R.id.img_loading1); 
     img_c_like_dislike = (ImageView) itemView.findViewById(R.id.img_c_like_dislike); 
     txt_c_title = (TextView) itemView.findViewById(R.id.txt_c_title); 
     txt_c_category = (TextView) itemView.findViewById(R.id.txt_c_category); 
     txt_c_vendor = (TextView) itemView.findViewById(R.id.txt_c_vendor); 
     txt_c_discount = (TextView) itemView.findViewById(R.id.txt_c_discount); 
     txt_c_viewdetail = (TextView) itemView.findViewById(R.id.txt_c_viewdetail); 
     itemView.findViewById(R.id.ll_c_main).setOnClickListener(new View.OnClickListener() { 
      @Override 
      public void onClick(View v) { 

      } 
     }); 
    } 
} 

}

这是例如，你可以在onBindViewHolder方法看到有我设置新的点击监听，并保存到共享偏好。