Question

您好我正在使用自定义适配器来填充listView。 listView中的每个项目都有一个标题和背景颜色的图像。我想要实现的是当我点击一个项目将标题和bg颜色传递给下一个活动时。 1.）这可能吗？ 2.）有谁知道怎么做？

她的适配器

import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;


public class CustomArrayAdapter extends ArrayAdapter<MenuItemsSetup>{

    Context context; 
    int layoutResourceId;    
    MenuItemsSetup data[] = null;
    String color[] = null;

    public CustomArrayAdapter(Context context, int layoutResourceId, MenuItemsSetup[] data, String[] color) {
        super(context, layoutResourceId, data);
        this.layoutResourceId = layoutResourceId;
        this.context = context;
        this.data = data;
        this.color = color;
        this.color = color;
    }

    public View getView(int position, View convertView, ViewGroup parent) {
        View row = convertView;
        ItemHolder holder = null;

        if(row == null)
        {
            LayoutInflater inflater = ((Activity)context).getLayoutInflater();
            row = inflater.inflate(layoutResourceId, parent, false);

            holder = new ItemHolder();
            holder.imgIcon = (ImageView)row.findViewById(R.id.imgIcon);
            holder.txtTitle = (TextView)row.findViewById(R.id.txtTitle);
            String[] backgroundColor = color;


            row.setTag(holder);
        }
        else
        {
            holder = (ItemHolder)row.getTag();
        }

        MenuItemsSetup menuItem = data[position];
        holder.txtTitle.setText(menuItem.title);
        holder.imgIcon.setImageResource(menuItem.icon);
        row.setBackgroundColor(Color.parseColor(color[position]));

        return row;
    }

    static class ItemHolder
    {
        ImageView imgIcon;
        TextView txtTitle;

    }
}

继承我的MenuItemsSetup.java

public class MenuItemsSetup {
    public int icon;
    public String color;
    public String title;
    public MenuItemsSetup(){
        super();
    }

    public MenuItemsSetup(int icon, String title) {
        super();
        this.icon = icon;
        this.title = title;

    }
}

继承人我在Home.java中形成listView（ps我也使用ActionBarSherlock，如果这是任何用途）

   MenuItemsSetup menuData[] = new MenuItemsSetup[]
                {
                    new MenuItemsSetup(R.drawable.ic_menu_icon1, menuItem1),
                    new MenuItemsSetup(R.drawable.ic_menu_icon2, menuItem2),
                    new MenuItemsSetup(R.drawable.ic_menu_icon3, menuItem3),
                    new MenuItemsSetup(R.drawable.ic_menu_icon4, menuItem4),
                    new MenuItemsSetup(R.drawable.ic_menu_icon5, menuItem5),
                    new MenuItemsSetup(R.drawable.ic_menu_icon6, menuItem6),
                    new MenuItemsSetup(R.drawable.ic_menu_icon7, menuItem7),
                    new MenuItemsSetup(R.drawable.ic_menu_icon8, menuItem8),
                    new MenuItemsSetup(R.drawable.ic_menu_icon9, menuItem9)
                };


       String[] menuBgColours = {menuColor1,menuColor2,menuColor3,menuColor4, menuColor5,.menuColor6
,menuColor7, menuColor8, menuColor9};

                menuListAdapter = new CustomArrayAdapter(this, R.layout.drawer_list_item, menuData, menuBgColours);
                menuGridAdapter = new CustomArrayAdapter(this, R.layout.grid_item, menuData, menuBgColours);
                menuList.setAdapter(menuListAdapter);
                menuList.setOnItemClickListener(new DrawerItemClickListener());

   private class DrawerItemClickListener implements ListView.OnItemClickListener {
      @Override
      public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

          Log.v("Homepage", "menItem clicked = " + menuData[position]);

      }
   }

Answer 1

首先，这是可能的。

您可以将onItemClickListener添加到ListView并处理项目上的点击。列表中项目的位置将传递给此方法，您可以从用于构建ListView项目的对象列表中找到原始项目。

接下来，当您创建新的Intent以启动新活动时，您可以将要发送到新活动的任何值添加为此Intent的键值对。

在新活动的onCreate方法中，您可以使用

getIntent（）;

将返回起始Intent。您将能够使用相同的密钥检索传递给此活动的所有值。

希望这有帮助。

android将项目从自定义适配器传递到意图

1 个答案: