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This document uses PHP Chinese website manual Release
The $swipe
service is a service that abstracts the messier details of hold-and-drag swipe behavior, to make implementing swipe-related directives more convenient.
Requires the ngTouch
module to be installed.
$swipe
is used by the ngSwipeLeft
and ngSwipeRight
directives in ngTouch
, and by ngCarousel
in a separate component.
The $swipe
service is an object with a single method: bind
. bind
takes an element which is to be watched for swipes, and an object with four handler functions. See the documentation for bind
below.
bind();
The main method of $swipe
. It takes an element to be watched for swipe motions, and an object containing event handlers. The pointer types that should be used can be specified via the optional third argument, which is an array of strings 'mouse'
and 'touch'
. 默认情况下, $swipe
will listen for mouse
and touch
events.
The four events are start
, move
, end
, and cancel
. start
, move
, and end
receive as a parameter a coordinates object of the form { x: 150, y: 310 }
.
start
is called on either mousedown
or touchstart
. After this event, $swipe
is watching for touchmove
or mousemove
events. These events are ignored until the total distance moved in either dimension exceeds a small threshold.
Once this threshold is exceeded, either the horizontal or vertical delta is greater.
move
and end
events follow.cancel
event is sent.move
is called on mousemove
and touchmove
after the above logic has determined that a swipe is in progress.
end
is called when a swipe is successfully completed with a touchend
or mouseup
.
cancel
is called either on a touchcancel
from the browser, or when we begin scrolling as described above.