我对Android开发很新,我觉得这很简单,但是,我没有设法在谷歌上发现同样问题的任何人.

我有一个Gridview,其中填充了TextView(顶部有一个图像)和一个ImageButton(删除当前项目).我想要做的是删除我单击ImageButton的项目.

这是我的主要：

public class ActivityMain extends Activity

{

GridView gridview;

public GridAdapter mainActivityAdapter;

public ArrayList listService = new ArrayList();

@Override

protected void onCreate(Bundle savedInstanceState)

{

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

listService.add("Market");

listService.add("Recherche");

listService.add("Quiz");

gridview = (GridView) findViewById(R.id.mainActivity_grid);

mainActivityAdapter = new GridAdapter(this.getApplicationContext(), listService);

gridview.setAdapter(mainActivityAdapter);

}

}

这是我的适配器：

public class GridAdapter extends BaseAdapter

{

Context context;

ArrayList list = new ArrayList();

GridAdapter adapter = this;

public GridAdapter(Context context, ArrayList list)

{

this.context = context;

this.list = list;

}

@Override

public int getCount()

{

return list.size();

}

@Override

public Object getItem(int arg0)

{

return null;

}

@Override

public long getItemId(int arg0)

{

return 0;

}

@Override

public View getView(final int position, View convertView, ViewGroup parent)

{

ViewHolder holder;

if(convertView==null)

{

convertView = LayoutInflater.from(context).inflate(R.layout.item_gridmain, null);

holder = new ViewHolder();

holder.textView = (TextView) convertView.findViewById(R.id.gridMain_text);

holder.close = (ImageButton) convertView.findViewById(R.id.mainActivity_delete);

convertView.setTag(holder);

}

else{

holder = (ViewHolder) convertView.getTag();

}

// Doing stuff on views

holder.close.setOnClickListener(new View.OnClickListener()

{

public void onClick(View arg1)

{

// list.remove(position);

list.remove(position);

adapter.notifyDataSetChanged();

}

});

return convertView;

}

public static class ViewHolder

{

TextView textView;

ImageButton close;

}

}

问题是,当我点击一个ImageButton时,它总是被删除的最后一个项目被删除,我无法弄清楚为什么或如何解决这个问题.

谢谢.

==================

编辑：

这是我的activity_main.xml：

android:id="@+id/main_layout"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:background="#DDDDDD"

android:orientation="vertical" >

android:id="@+id/mainActivity_grid"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_gravity="center"

android:layout_marginLeft="5sp"

android:layout_marginRight="5sp"

android:layout_marginTop="5sp"

android:clickable="false"

android:gravity="center"

android:horizontalSpacing="15dp"

android:numColumns="2"

android:stretchMode="columnWidth"

android:verticalSpacing="10dp" />

还有我的item_gridmain.xml：

android:layout_width="match_parent"

android:layout_height="match_parent"

android:orientation="vertical" >

android:id="@+id/gridMain_text"

android:layout_height="wrap_content"

android:layout_width="wrap_content"

android:layout_gravity="center"

android:textAlignment="center"

android:textColor="@android:color/holo_blue_dark"

/>

android:id="@+id/mainActivity_delete"

style="?android:attr/borderlessButtonStyle"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentRight="true"

android:layout_alignParentTop="true"

android:contentDescription="@string/deleteFav"

android:src="@drawable/boutoncroixfermer" />

解决方法:

每个项目都有ImageButton吗？你可以设置

holder.close.setTag(Integer.valueOf(position));

然后,您将所有位置隐藏在右侧按钮中.更改OnClickListener,如下所示：

close.setOnClickListener(new View.OnClickListener()

{

public void onClick(View v)

{

list.remove((Integer) v.getTag());

adapter.notifyDataSetChanged();

}

});

标签：android,adapter,gridview,android-gridview

来源： https://codeday.me/bug/20190517/1121872.html