ForEach

Note:

Currently in the beta phase.

The ForEach interface performs loop rendering based on array-type data.

Import Module

import kit.ArkUI.*

class ForEach<T>

public class ForEach<T> {
    public init(arr: CollectionEx<T>, itemGenerator!: ItemGeneratorFunc<T>,
        keyGenerator!: ?KeyGeneratorFunc<T> = None) {}
}

Description: Creates a loop rendering component. The ForEach interface performs loop rendering based on array-type data and must be used in conjunction with container components.

System Capability: SystemCapability.ArkUI.ArkUI.Full

Since: 22

init(CollectionEx<T>, ItemGeneratorFunc<T>, ?KeyGeneratorFunc<T>)

public init(arr: CollectionEx<T>, itemGenerator!: ItemGeneratorFunc<T>, keyGenerator!: ?KeyGeneratorFunc<T> = None)

Description: Defines the ForEach component.

System Capability: SystemCapability.ArkUI.ArkUI.Full

Since: 22

Parameters:

Parameter Name	Type	Required	Default Value	Description
arr	CollectionEx<T>	Yes	-	Array collection for UI.
itemGenerator	ItemGeneratorFunc<T>	Yes	-	Named parameter. Item generator function.
keyGenerator	?KeyGeneratorFunc<T>	No	None	Named parameter. Key generator function.