invoke method
Implementation
@override
String invoke(String method, params, callback) {
switch (method) {
case 'getUserAgent':
return getUserAgent();
case 'getPlatform':
return getPlaftorm();
case 'getLanguage':
return getLanguage();
case 'getLanguages':
return getLanguages();
case 'getHardwareConcurrency':
return getHardwareConcurrency();
case 'getAppName':
return getAppName();
case 'getAppVersion':
return getAppVersion();
default:
return '';
}
}