我正在尝试在每个单元格内使用带有 ImageView 和 TextView 的 GridView。所以我当然创建了单元格布局、网格布局、imageAdapter 和主要活动，但我不断遇到以下问题：
当我在模拟器上尝试此操作时，初始图像和标题显示正确，但当我向下滚动时，一些项目开始混乱并不断变化甚至重复。
我正在使用 2 个并行数组（图像和标题）。我尝试使用 Log.v 函数来找出调用 getView 时显示的索引和图像，但只有初始的索引和图像（无需滚动即可看到）被正确分配。
我必须通过一遍又一遍地生成视图来解决问题，但这显然不是正确的方法。
这是我正在使用的文件：
网格单元：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/GridItem"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:gravity="center_horizontal">
<ImageView android:id="@+id/grid_item_image"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
</ImageView>
<TextView android:id="@+id/grid_item_text"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="TextView"
android:gravity="center_horizontal"
android:textColor="#FFFFFF">
</TextView>
</LinearLayout>
网格视图：
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<TextView
android:layout_width="wrap_content"
android:layout_height="50dp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:gravity="center_vertical"
android:text="@string/txtMenu"
/>
<GridView
android:id="@+id/grdMenu"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginTop="50dp"
android:gravity="center"
android:padding="10dp"
android:horizontalSpacing="10dp"
android:verticalSpacing="10dp"
android:numColumns="3" >
</GridView>
</RelativeLayout>
GridActivity：（唯一实现的方法）
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.menu);
GridView gridview = (GridView) findViewById(R.id.grdMenu);
gridview.setAdapter(new ImageAdapter(this));
gridview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
Toast.makeText(getApplicationContext(), "" + position, Toast.LENGTH_SHORT).show();
}
});
}
图像适配器：
public class ImageAdapter extends BaseAdapter {
private Context mContext;
private Integer[] mThumbIds = {R.drawable.potencia32x32,R.drawable.detalle_cuenta32x32,R.drawable.solicitud32x32,R.drawable.agregar32x32,R.drawable.cyr_32x32,
R.drawable.usuarios,R.drawable.cambio_med64x64,R.drawable.cobranza_ex64x64,R.drawable.convenio_pagos64x64,R.drawable.copiabf64x64,
R.drawable.info_cliente64x64,R.drawable.mant_exp64x64,R.drawable.ordenes64x64,R.drawable.reembolsos64x64,R.drawable.seguro64x64,R.drawable.solicitudes64x64,
R.drawable.suministro64x64
};
private String[] Caption = {"Consumo","Facturaciones","Solicitudes","Pagos","Cortes y Rcnx","Datos Generales","Cambios de Medidores","Cobranza Externa","Convenio Pagos","Copia Fac. o Bol.",
"Info. Cliente","Mant. Expediente","Consulta Ordenes","Historia Reembolsos","Seguros","Solicitudes","Caracteristicas Suministro"
};
public ImageAdapter(Context c) {
mContext = c;
}
public int getCount() {
return mThumbIds.length;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
View myView = null;
if(convertView==null)
{
LayoutInflater li = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
myView = li.inflate(R.layout.grdmenu_cell, null);
TextView tv = (TextView) myView.findViewById(R.id.grid_item_text);
Log.v("D:<",String.valueOf(Caption.length) +" y: "+ String.valueOf(position));
tv.setText(Caption[position]);
ImageView iv = (ImageView) myView.findViewById(R.id.grid_item_image);
Log.v("D:<",String.valueOf(mThumbIds.length) +" y: "+ String.valueOf(position));
iv.setImageResource(mThumbIds[position]);
}
else
{
myView = convertView;
}
return myView;
}
}
这是我的第一个问题，所以如果我犯了任何错误，请告诉我。提前致谢。