Util:跟App相关的辅助类

public class AppUtils{
private AppUtils(){
/* cannot be instantiated */
throw new UnsupportedOperationException("cannot be instantiated");
}
/**
* 获取应用程序名称
*/
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;
}
/**
* [获取应用程序版本名称信息]
* @param context
* @return 当前应用的版本名称
*/
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;
}

}