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voltmx.i18n Namespace

The voltmx.i18n Namespace, which forms the Internationalization API, provides the following API elements.

Note: From V9 SP2 onwards, the i18n database data for a VoltMX App child app is stored in child app data and not under the parent app. This feature is applicable for iOS, Windows, and Android platforms.

Functions

The voltmx.i18n namespace, which is used for internationalization, provides the following functions.

voltmx.i18n.deleteResourceBundle

This API allows you to delete an existing resource bundle. If a resource bundle does not exist, the API will return without performing any operation. Only resource bundles which are newly created using the setResourceBundle API will be deleted. The bundle which are created by IDE, cannot be deleted, but they can only be updated.

Syntax


voltmx.i18n.deleteResourceBundle([locale](#locale12))

Input Parameters

Parameter Description
locale [String] - Mandatory Specifies the locale for which the resource bundle needs to be deleted.

Example


//To delete the resource bundle  
deleteResourceBundle: function() {
    voltmx.i18n.deleteResourceBundle("de_DE");
    alert(" Resources bundle has been deleted.");
},

Return Values

None

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms.

voltmx.i18n.getCurrentLocale

This API returns the locale (string) that is currently being used by the application to populate the localized data. This locale might be different than the system locale. The locale follows the format language_Country.For example, en_US. Country is not mandatory.

Use Cases

You can use this API to know the current locale of the application before:

  • changing the locale.
  • deleting the resource bundle of the locale.

Syntax


voltmx.i18n.getCurrentLocale()

Example


//To get the Locale name that is set on your app   
getCurrentLocale:functio(){
var currentLocales = voltmx.i18n.getCurrentLocale();
alert("CurrentLocale :" + currentLocales);
},

Input Parameters

None.

Return Values

Return Value Description
Current locale [String] The current locale that is being used by the application is returned.

Exceptions

1300 - i18n error or Locale not supported error

Implementation Details

The current locale of the application is identified using the following rules:

Device Locale Locales Supported by the application Default Locale Locale returned by getCurrentLocale API
en_GB en_US, zh_TW en_TW en_TW (Since the device locale is not supported by the application, the API falls back to default locale)
en_US en_US, en , zh_TW en_TW en_US (Since the device locale is supported by the application, the API returns it as the current locale)
en_US en, zh_TW en_TW en (Since the device locale is supported by the application, the API falls back to the country)

This API follows the rules given below to identify the current locale:

1.When the device locale is not supported by the application:

For example, if the

  • application supports fr_GR, nl_NL.

  • default locale is (set from IDE) nl_NL.

  • device locale is en_GB.

The voltmx.i18n.getCurrentLocale() API returns nl_NL.

2.When the device locale supports just the language part and not the region part

For example,

  • application supports fr_GR, en_US, en_GB, nl_NL.

  • default locale is (set from IDE) nl_NL.

  • device locale is en..

Note: On iPhone and Android, the device settings mandate that a region must also be associated with a language.

The voltmx.i18n.getCurrentLocale() API picks up the first locale that matches the language. In this example, the API returns en_US as it is the first locale that matches the language as specified in the device system settings.

3.When appropriate fonts are not installed on the device for a given locale

For example,

  • application supports fr_FR and nl_NL

  • default locale is (set from IDE) nl_NL

  • device locale is en_GB.

The voltmx.i18n.getCurrentLocale() API returns nl_NL. If the device does not have Dutch fonts installed, the application UI displays junk characters.

Platform Availability

Available on all platforms.

voltmx.i18n.getCurrentDeviceLocale

This API provides you the ability to fetch the current locale of the device.

Syntax


voltmx.i18n.getCurrentDeviceLocale()

Example


//To get the current device locale  
getCurrentDeviceLocale:function(){
    var locale = voltmx.i18n.getCurrentDeviceLocale();
    alert("current device locale is " + locale);
},

Input Parameters

None

Return Values

Return Value Description
listOfLocales [Table] A table with the following key-value pairs is returned:languagecountryname For example, local myLocaleDetails = voltmx.i18n.getCurrentDeviceLocale()Where myLocaleDetails={language="en", country="US", name="English US"}

Note: In iOS platform this API returns a string value.

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on iOS, Android, and Windows.

voltmx.i18n.getLocalizedString

This API returns the localized string that corresponds to the specified i18n Key.

Syntax


voltmx.i18n.getLocalizedString([i18nkey](#i18nkey))

Input Parameters

Parameter Description
i18nkey [String]- Mandatory Specifies the internationalization key for which the localized string needs to be returned.

Example


//To get the localized string that corresponds to the specified i18n Key.  
getLocalizedString: function() {
    var currentLocale = voltmx.i18n.getLocalizedString("Hello");
    alert(" LocalizedString Method called :" + currentLocale);
},

Return Values

Return Value Description
Localizedstring [String] Returns the localized string corresponding to the key value.

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms.

voltmx.i18n.getSupportedLocales

This API retrieves a list of all the locales supported by the device.

Syntax


voltmx.i18n.getSupportedLocales()

Example


//To get all the locales supported by the device  
 getSupportedLocale: function() {
    var supportedLocales = voltmx.i18n.getSupportedLocales();
    alert("Supported Locales :" + JSON.stringify(supportedLocales));
},

Input Parameters

None

Return Values

Return Value Description
listOfLocales [Table] A table with the following key-value pairs is returned:languagecountryname **_Note:_** In Windows platform, Country and Name are not supported. For example, local list = voltmx.i18n.getSupportedLocales() 

Where list={ {language:"en", country:"US", name:"English US"},{language:"en", country:"UK", name:"English UK"} }

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms except Server Side Mobile Web, Desktop Web and SPA. *SPA and Desktop Web returns only current locale instead of all locales supported by the browser.

voltmx.i18n.isLocaleSupportedByDevice

This API provides you the ability to view whether a locale is supported by a device.

Syntax


voltmx.i18n.isLocaleSupportedByDevice([locale](#localess))

Input Parameters

Parameter Description
locale [String] - Mandatory Specifies the locale that must be verified if it is supported by the device.locale must be in one of the following formats:language_countryCodelanguageFor example, voltmx.i18n.isLocaleSupportedByDevice("en_US")``voltmx.i18n.isLocaleSupportedByDevice("fr")

Example


//To check whether the specified locale is supported by the device or not.  
Checkthelocale: function() {
    var a = this.view.txtbx.text;
    if (voltmx.i18n.isLocaleSupportedByDevice("a") === true) {
        alert("This locale is supported");
    } else {
        alert("This Locale is not supported");
    }
},

Return Values

Return Value Description
status [Boolean] Indicates the status if the specified locale is supported by the device.true - if the specified locale is supported by the device.false - if the specified locale is not supported by the device.

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms except SPA and Desktop Web.

voltmx.i18n.isResourceBundlePresent

This API checks if a resource bundle exists for a given locale and returns a boolean value.

Syntax


voltmx.i18n.isResourceBundlePresent ([locale](#locale1))

Input Parameters

Paramater Description
locale [String] - Mandatory Specifies the locale for which the resource bundle is checked.

Example


isResourceBundlePresent: function() {
    try {
        var exists = voltmx.i18n.isResourceBundlePresent("en_GB");
        alert("English resource bundle is present " + exists);
    } catch (i18nError) {
        alert("Exception While getting isResourceBundlePresent : " + i18nError);
    }
},

Return Values

Return Value Description
status [Boolean] true - if the resource bundle exists for the given locale.false - if no resource bundle exists for the given locale.

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms except SPA and Desktop Web.

voltmx.i18n.setDefaultLocaleAsync

Every application that has support for internationalization needs a locale to be set as a default locale. This API allows you to set the specified locale as the default locale for the application. You can also set the default locale from the IDE. However, this API allows you to perform that task dynamically.

Use Cases

You must set the resource bundle for a given locale to have internationalization support for that locale.

Syntax


voltmx.i18n.setDefaultLocaleAsync([localename](#localename), [onsuccesscallback](#onsuccesscallback), [onfailurecallback](#onfailurecallback), [info](#info1))

Input Parameters

Parameter Description
localename [String] - Mandatory Specifies the locale that must be set as the default locale of the application.
onsuccesscallback [Function] - Mandatory onsuccess callback is called by the platform after successfully setting the specified locale as default.onsucess(oldlocalename, newlocalename){ \\\\code }
onfailurecallback [Function] - Mandatory onfailure callback will be called by the platform if the locale is not set successfully.onfailure (errCode, errMsg){ \\\\code }
info [Object] - Optional A JavaScript object consisting of key value pairs. If info parameter is specified, it is passed to the callback function as a last parameter. If the info parameter is not specified, the callback function receives the info as null/nil. "Info" is basically a user data where in the application developers will pass it to the async API's and the platform returns this info object to the corresponding async callback.This parameter is helpful for developers to remember the context when the methods are called in asynchronous fashion.Developers can define any custom keys and values within the info Object based on the needs. These are not predefined keys with values.

Example


//To set the default locale for your app.   
  setDefaultLocaleAsync: function(){
    voltmx.i18n.setDefaultLocaleAsync("fr_FR", this.onsuccesscallback, this.onfailurecallback);
  },

Return Values

None

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms.

voltmx.i18n.setCurrentLocaleAsync

This API provides you the ability to set the specified locale as the current locale of the application. If the locale is not supported by the device, junk characters are displayed on the screen for the locale specific string.

Use Cases

You must set the resource bundle for a given locale to have internationalization support for that locale.

Syntax


voltmx.i18n.setCurrentLocaleAsync([localename](#localename5), [onsuccesscallback](#onsuccesscallback5), [onfailurecallback](#onfailurecallback5), [info](#info))

Input Parameters

Parameter Description
localename [String] - Mandatory Specifies the locale that must be set as the default locale of the application.
onsuccesscallback [Function] - Mandatory onsuccess callback will be called by the platform after a locale is set successfully as the current locale.onsucess(oldlocalename, newlocalename){ \\\\code }
onfailurecallback [Function] - Mandatory onfailure callback will be called by the platform if the locale is not set successfully.onfailure (errCode, errMsg){ \\\\code }
info [Object] - Optional A JavaScript object consisting of key value pairs. If info parameter is specified, it is passed to the callback function as a last parameter. If the info parameter is not specified, the callback function receives the info as null/nil. "Info" is basically a user data where in the application developers will pass it to the async API's and the platform returns this info object to the corresponding async callback.This parameter is helpful for developers to remember the context when the methods are called in asynchronous fashion.Developers can define any custom keys and values within the info Object based on the needs. These are not predefined keys with values.

Example


/*By using this function, you set a locale based on your input that you select from the 
  list box widget.*/
setlocaleListbox: function() {
    if (this.view.lstbx.selectedKey == "lb1") {
        voltmx.i18n.setCurrentLocaleAsync("en_GB", this.onsuccesscallback, this.onfailurecallback);
    } else if (this.view.lstbx.selectedKey == "lb2") {
        voltmx.i18n.setCurrentLocaleAsync("es_AR", this.onsuccesscallback, this.onfailurecallback);
    } else if (this.view.lstbx.selectedKey == "lb3") {
        voltmx.i18n.setCurrentLocaleAsync("fr_FR", this.onsuccesscallback, this.onfailurecallback);
    }
},

Return Values

None

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms.

voltmx.i18n.setLocaleLayoutConfig

This API helps you to define the Right-To-Left (RTL) behavior for each locale in an application.

Note: When the application calls the voltmx.i18n.setDefaultLocaleAsync API, VoltMX Iris Framework loads forms with the corresponding Locale.The forms that were loaded previously must be destroyed in application code to see the effect of the RTL/LTR feature for that particular form.

Syntax


voltmx.i18n.setLocaleLayoutConfig({ "<locale\_key1>" :  
{"mirrorFlexPositionProperties", "mirrorContentAlignment", "mirrorFlowHorizontalAlignment":}

Input Parameters

Parameter Description
mirrorFlexPositionProperties [Boolean] - Mandatory This property reverses the layout properties for left and right alignment. At run time the framework iterates through all the widgets in any given form and if the layout is set to RTL(mirrorFlexPositionProperties = true), the following actions are performed:For any widget for which the values for Left and Width are set but Right is empty, the Left value is then replaced with the Right value; and the Left value becomes Null.For any widget for which the values for Right and Width are set but Left is empty, the Right value is then replaced with the Left value; and the Right value becomes Null.For any widget that has both Right and Left values set, the values are swapped between the two.For any widget for which Padding has a Left value, the Left value is then replaced with the Right value.For any widget for which Padding has a Right value, the Right value is then replaced with the Left value.
mirrorContentAlignment [Boolean] - Mandatory This property reverses the content alignment from right to left. At run time the framework iterates through all the widgets in any given form and if the layout is set to RTL(mirrorContentAlignment = true), the following actions are performed: For any widget for which Content Alignment is set as Left, the content alignment is changed to Right.For any widget for which Content Alignment is set as Right, the content alignment is changed to Left.
mirrorFlowHorizontalAlignment [Boolean] - Mandatory This property converts the flow horizontal alignment of a FlexContainer from left to right. VoltMX Iris Framework internally applies the NOT operator on the reverseLayoutDirection Property of horizontal FlexContainer to change the alignment.

Example


voltmx.i18n.setLocaleLayoutConfig({
    "<locale_key1>": {
        "mirrorFlexPositionProperties": true / false,
        "mirrorContentAlignment": true / false,
        "mirrorFlowHorizontalAlignment": true / false,
    },
    "<locale_key2>": {
        "mirrorFlexPositionProperties": true / false,
        "mirrorContentAlignment": true / false,
        "mirrorFlowHorizontalAlignment": true / false,
    },
});

Platform Availability

  • iOS
  • Android
  • Windows
  • SPA

Limitations

  • For Windows, if you use the isI18nLayoutConfigEnabled key and the voltmx.application.setApplicationLayout API together in a single application, the application does not function as expected.

voltmx.i18n.setResourceBundle

This API allows you to set the specified resource bundle for a given locale. If the specified locale has a resource bundle already set, it is overridden with the given resource bundle.

If no resource bundle has been set previously, this API will create a new resource bundle.

Use Cases

You must set the resource bundle for a given locale to have internationalization support for that locale.

Syntax


voltmx.i18n.setResourceBundle([inputtable](#inputtable), [locale](#locale))

Input Parameters

Paramater Description
inputtable [Table] - Mandatory Specifies the resource bundle that needs to be set for the given locale.
locale [String] - Mandatory Specifies the locale for which the resource bundle needs to be set.

Example


//To set a resource bundle for the key "Hello"
  setResourceBundle: function(){    
    voltmx.i18n.setResourceBundle({
      Hello: "Hallo Welt",
    }, "de_DE");
    voltmx.i18n.setCurrentLocaleAsync("de_DE",this.onsuccesscallback, this.onfailurecallback);  
  },

Return Values

None

Exceptions

1300 - i18n error or Locale not supported error, Locale not supported.

Platform Availability

Available on all platforms.

voltmx.i18n.updateResourceBundle

This API allows you to append new key-value pairs to the given resource bundle for a specified locale. The key-value pairs you provide will be appended at the end of the resource bundle.

If no resource bundle exists for the specified locale, a new resource bundle is created.

Syntax


voltmx.i18n.updateResourceBundle([inputtable](#inputtable1), [locale](#getcurre))

Input Parameters

Paramater Description
inputtable [Table] - Mandatory Specifies the resource bundle that needs to be set for the given locale.
locale [String] - Mandatory Specifies the locale for which the resource bundle needs to be set.

Example


//To update the resource bundle with a different text  
  updateResourceBundle: function(){
 voltmx.i18n.updateResourceBundle({
           Hello: "Hallo Leute",
        }, "de_DE");
  voltmx.i18n.setCurrentLocaleAsync("de_DE",this.onsuccesscallback1, this.onfailurecallback);
},

Return Values

None

Exceptions

1300 - i18n error or Locale not supported error

Platform Availability

Available on all platforms.