android 获取AndroidManifest.xml中的MetaData标签值

privateString getMetaDataValue(String name, String def) {

 

    String value = getMetaDataValue(name);

 

    return(value == null) ? def : value;

 

}

 

privateString getMetaDataValue(String name) {

 

    Object value = null;

 

    PackageManager packageManager = context.getPackageManager();

 

    ApplicationInfo applicationInfo;

 

    try{

 

        applicationInfo = packageManager.getApplicationInfo(context

 

        .getPackageName(),128);

 

        if(applicationInfo != null&& applicationInfo.metaData != null) {

 

            value = applicationInfo.metaData.get(name);

 

        }

 

    }catch(NameNotFoundException e) {

 

        thrownew RuntimeException(

 

        "Could not read the name in the manifest file.", e);

 

    }

 

    if(value == null) {

 

        thrownew RuntimeException("The name '" + name

 

        +"' is not defined in the manifest file's meta data.");

 

    }

 

    returnvalue.toString();

 

}