Manifest에 정의된 값 가져오기

매니페스트에 다음과 같이 밑줄 된 값이 필요할때 다음과 같이 가져온다.

AndroidManifest.xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.si.pe.shin.library"    
    android:versionCode="1"
    android:versionName="3.7.0" >
    
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:description="@string/app_name"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".activity.MainActivity"
            android:theme="@style/AppTheme.NoActionBar">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
    </application>

/**
 * 매니페스트 버전을 얻는다
 * @param context context
 * @return 버전
 */
public static String getVersionName(Context context) {
   String version = "";
   try { 
      PackageInfo i = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
      version = i.versionName + ""; 
   } catch(NameNotFoundException e) { 
   }
   return version;
}

/**
 * 매니페스트 버전코드를 얻는다
 * @param context context
 * @return 버전코드
 */
public static int getVersionCode(Context context) {
   int versionCode = 1;
   try { 
      PackageInfo i = context.getPackageManager().getPackageInfo(context.getPackageName(), 0);
      versionCode = i.versionCode; 
   } catch(NameNotFoundException e) { 
   }
   return versionCode;       
}

/**
 * 매니페스트 Description를 얻는다
 * @param context context
 * @return 어플아이디
 */
public static String getDescription(Context context) {
   String appId = ""; 
   try { 
      PackageManager pm = context.getPackageManager();
      PackageInfo i = pm.getPackageInfo(context.getPackageName(), 0); 
      appId = i.applicationInfo.loadDescription(pm) + "";
   } catch(NameNotFoundException e) { 
   }
   return appId;
}

/**
 * 매니페스트 Label을 얻는다
 * @param context context
 */
public static String getAppLabel(Context context) {
   String appName = ""; 
   try { 
      PackageManager pm = context.getPackageManager();
      PackageInfo i = pm.getPackageInfo(context.getPackageName(), 0); 
      appName = i.applicationInfo.loadLabel(pm) + "";
   } catch(NameNotFoundException e) { 
   }
   return appName;
}