带图像的android网格视图（图像缩小并且看起来模糊）

I have to show 7 icons on the home screen of my application .To do this i have arranged the icons on the grid view using image view to show images .On emulator it looks absolutely fine but images shrink and look blur ,when i deploy the application on LG Optimus p350 please help me how to show the images clearly of actual size :

我尝试的代码是：

<GridView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/gridview" android:layout_width="fill_parent"
    android:layout_height="fill_parent" android:columnWidth="61dp"
    android:numColumns="3" android:verticalSpacing="10dp"
    android:horizontalSpacing="10dp" android:stretchMode="spacingWidthUniform"
    android:gravity="center" android:layout_gravity="center" />

图标尺寸为61*80

EDIT :

<supports-screens android:smallScreens="true"
        android:normalScreens="true" android:largeScreens="true"
         android:anyDensity="true"/>

请查看图像和代码在模拟器上，输出显示如下。我想在设备上也以这种清晰度显示输出。请指导

请参阅第二个屏幕截图（在 qvga 模拟器上模糊），请指导我如何纠正它..

这些图像对我来说并不模糊。由于屏幕分辨率更高，它们只是更小。但文字看起来确实很模糊。

所以我建议结合使用图像视图 and TextView。将文本和图像分开。文本将适当缩放。 您还可以提供不同分辨率的多个图像集。

EDIT:您可以创建与此类似的网格项布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" 
android:gravity="bottom"
android:layout_width="wrap_content" 
android:layout_gravity="bottom">

<ImageView android:id="@+id/thumbnailImage"
    android:layout_height="70dp" 
    android:layout_width="fill_parent"      
    android:gravity="center_horizontal" />

<TextView android:id="@+id/thumnailTitle" android:text="TextView"
    android:layout_height="wrap_content" 
    android:textAppearance="?android:attr/textAppearanceMedium"
    android:layout_width="fill_parent"
    android:gravity="center_horizontal|bottom" />
</LinearLayout>

创建一个扩展 BaseAdapter 类的自定义网格适配器：

public class MyGridAdapter extends BaseAdapter
{...}

将适配器与您的网格关联起来：

adapter = new MyGridAdapter();

GridView gridView = (GridView) findViewById(R.id.gridView);
gridView.setAdapter(adapter);

然后只需使用 getView 适配器方法将项目填充到网格中即可：

public View getView(int position, View convertView, ViewGroup parent)
{
   // assuming the grid item layout is named "grid_item"
   View view = inflater.inflate(R.layout.grid_item, null);

   TextView text = (TextView) view.findViewById(R.id.thumnailTitle);
   text.setText("Test");

   ImageView thumbnail = (ImageView) view.findViewById(R.id.thumbnailImage);
...