AppUtils用于獲取程序版本信息，程序名稱的Android工具類

    import android.content.Context;

    import android.content.pm.PackageInfo;

    import android.content.pm.PackageManager;

    import android.content.pm.PackageManager.NameNotFoundException;


//跟App相關的輔助類  
public class AppUtils  
{  

    private AppUtils()  
    {  
        /* cannot be instantiated */  
        throw new UnsupportedOperationException("cannot be instantiated");  

    }  

    /** 
     * 獲取應用程序名稱 
     */  
    public static String getAppName(Context context)  
    {  
        try  
        {  
            PackageManager packageManager = context.getPackageManager();  
            PackageInfo packageInfo = packageManager.getPackageInfo(  
                    context.getPackageName(), 0);  
            int labelRes = packageInfo.applicationInfo.labelRes;  
            return context.getResources().getString(labelRes);  
        } catch (NameNotFoundException e)  
        {  
            e.printStackTrace();  
        }  
        return null;  
    }  

    /** 
     * [獲取應用程序版本名稱信息] 
     *  
     * @param context 
     * @return 當前應用的版本名稱 
     */  
    public static String getVersionName(Context context)  
    {  
        try  
        {  
            PackageManager packageManager = context.getPackageManager();  
            PackageInfo packageInfo = packageManager.getPackageInfo(  
                    context.getPackageName(), 0);  
            return packageInfo.versionName;  

        } catch (NameNotFoundException e)  
        {  
            e.printStackTrace();  
        }  
        return null;  
    }  

}  </pre>