Titanium.App.iOS.UserDefaults
The UserDefaults module is used for storing application-related data in property/value pairs that persist beyond application sessions and device power cycles. UserDefaults allows the suiteName of the UserDefaults to be specified at creation time.
Important: Using this API requires the NSPrivacyAccessedAPICategoryUserDefaults property set in the privacy manifest that was introduced in iOS 17. You can learn more about it here.
Unlike Titanium.App.Properties, Titanium.App.iOS.UserDefaults does not pull properties defined in the tiapp.xml file.
To create a UserDefaults object, use the Titanium.App.iOS.createUserDefaults method.
Extends: Titanium.App.Properties · Since: 4.0.0 · Platforms: iphone, ipad, macos
Properties #
apiName#
Type: String
The name of the API that this proxy corresponds to.
The value of this property is the fully qualified name of the API. For example, Button
returns Ti.UI.Button.
bubbleParent#
Type: Boolean
Indicates if the proxy will bubble an event to its parent.
Some proxies (most commonly views) have a relationship to other proxies, often
established by the add() method. For example, for a button added to a window, a
click event on the button would bubble up to the window. Other common parents are
table sections to their rows, table views to their sections, and scrollable views
to their views. Set this property to false to disable the bubbling to the proxy's parent.
lifecycleContainer#
Type: Titanium.UI.Window, Titanium.UI.TabGroup
The Window or TabGroup whose Activity lifecycle should be triggered on the proxy.
If this property is set to a Window or TabGroup, then the corresponding Activity lifecycle event callbacks
will also be called on the proxy. Proxies that require the activity lifecycle will need this property set
to the appropriate containing Window or TabGroup.
Methods #
addEventListener #
Adds the specified callback as an event listener for the named event.
| Name | Type | Summary | Optional |
|---|---|---|---|
name | String | Name of the event. | No |
callback | Callback<Titanium.Event> | Callback function to invoke when the event is fired. | No |
applyProperties #
Applies the properties to the proxy.
Properties are supplied as a dictionary. Each key-value pair in the object is applied to the proxy such that
myproxy[key] = value.
| Name | Type | Summary | Optional |
|---|---|---|---|
props | Dictionary | A dictionary of properties to apply. | No |
fireEvent #
Fires a synthesized event to any registered listeners.
| Name | Type | Summary | Optional |
|---|---|---|---|
name | String | Name of the event. | No |
event | Dictionary | A dictionary of keys and values to add to the Titanium.Event object sent to the listeners. | Yes |
getBool #
Returns the value of a property as a boolean data type.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | Boolean | Default value to return if property does not exist. | Yes |
Returns: Boolean
getDouble #
Returns the value of a property as a double (double-precision, floating point) data type.
This method must only be used to retrieve properties created with
setDouble.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | Number | Default value to return if property does not exist. | Yes |
Returns: Number
getInt #
Returns the value of a property as an integer data type.
This method must only be used to retrieve properties created with
setInt.
Use getDouble and setDouble
to store values outside the integer data type range of -2,147,483,648 to 2,147,483,647.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | Number | Default value to return if property does not exist. | Yes |
Returns: Number
getList #
Returns the value of a property as an array data type.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | Array<Object> | Default value to return if property does not exist. | Yes |
Returns: Array<Object>
getObject #
Returns the value of a property as an object.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | Object | Default value to return if property does not exist. | Yes |
Returns: Object
getString #
Returns the value of a property as a string data type.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
default | String | Default value to return if property does not exist. | Yes |
Returns: String
hasProperty #
Indicates whether a property exists.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
Returns: Boolean
removeAllProperties #
Removes all properties that have been set by the user on runtime, or does nothing otherwise.
removeEventListener #
Removes the specified callback as an event listener for the named event.
Multiple listeners can be registered for the same event, so the
callback parameter is used to determine which listener to remove.
When adding a listener, you must save a reference to the callback function
in order to remove the listener later:
var listener = function() { Ti.API.info("Event listener called."); }
window.addEventListener('click', listener);
To remove the listener, pass in a reference to the callback function:
window.removeEventListener('click', listener);
| Name | Type | Summary | Optional |
|---|---|---|---|
name | String | Name of the event. | No |
callback | Callback<Titanium.Event> | Callback function to remove. Must be the same function passed to addEventListener. | No |
removeProperty #
Removes a property if it exists, or does nothing otherwise.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
setBool #
Sets the value of a property as a boolean data type. The property will be created if it
does not exist.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | Boolean | Property value. | No |
setDouble #
Sets the value of a property as a double (double-precision, floating point) data type. The
property will be created if it does not exist.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | Number | Property value. | No |
setInt #
Sets the value of a property as an integer data type. The property will be created if it
does not exist.
Use getDouble and setDouble
to store values outside the integer data type range of -2,147,483,648 to 2,147,483,647.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | Number | Property value, within the range -2,147,483,648 to 2,147,483,647. | No |
setList #
Sets the value of a property as an array data type. The property will be created if it
does not exist.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | Array<Object> | Property value. | No |
setObject #
Sets the value of a property as an object data type. The property will be created if it
does not exist.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | Object | Property value. | No |
setString #
Sets the value of a property as a string data type. The property will be created if it
does not exist.
| Name | Type | Summary | Optional |
|---|---|---|---|
property | String | Name of property. | No |
value | String | Property value. | No |
Events #
change #
Fired when a property is changed.
On iOS, the event is fired when the user re-enters the application after
making a change using the Settings application.
The event is also fired when the application changes a property directly using one of the
Ti.App.iOS.UserDefaults or Ti.App.Properties methods.
Examples #
Create a UserDefaults object
Creating a UserDefaults object
var props = Ti.App.iOS.createUserDefaults({
suiteName: 'group.mySuite'
});