blockly > Touch > checkTouchIdentifier
Touch.checkTouchIdentifier() function
Check whether the pointer identifier on the event matches the current saved identifier. If the current identifier was unset, save the identifier from the event. This starts a drag/gesture, during which pointer events with other identifiers will be silently ignored.
Signature:
export declare function checkTouchIdentifier(e: PointerEvent): boolean;
Parameters
| Parameter |
Type |
Description |
| e |
PointerEvent |
Pointer event. |
Returns:
boolean
Whether the identifier on the event matches the current saved identifier.
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-09-18 UTC.
[null,null,["Last updated 2024-09-18 UTC."],[[["This function, `checkTouchIdentifier`, assesses if a pointer event's identifier aligns with a stored identifier, initiating a drag/gesture if it's a new interaction."],["During a drag/gesture, events from other pointer identifiers are disregarded, ensuring focus on the primary interaction."],["The function utilizes a `PointerEvent` to extract the identifier and returns a boolean indicating whether the event's identifier matches the saved one."]]],[]]
