Angularjs The notation of the polling device

$interval

$interval is an encapsulation of the native setInterval , which automatically executes ' $apply ' after each method call
The API is this:

1	$interval (FN, delay, [count], [invokeapply], [Pass]);

FN is the target method

Delay is the latency time, in milliseconds

Count is the total number of cycles

Invokeapply refers to whether the $apply method is called, by default True

Pass is a parameter that the method runs as a pass-through

• Rewriting the start code of an article

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App.controller (' Datactrl ',function ( $scope, $http, $filter) { $scope. Process = 0; $scope. Visible = false; var p = $interval ( function ( if ($scope. Process >= 100) { $scope. Visible = false; 500); //$interval. Cancel (p); Remove    //some code }

Add the following code to the controller

var stop;

$scope. $on (' $ionicView. Beforeleave ', function () {

$interval. Cancel;//stop polling after leaving the page

})

Polling

Stop = $interval (function () {

$http. Get ('/staffmessage/staffmessagelist?pageindex=1&pagesize=10 ')

. Success (function (result) {

$scope. data = result;

}). Finally (function () {});

}, 6000);

Inject a bit of code into the controller:

End of the website address (may want to FQ): https://docs.angularjs.org/api/ng/service/$interval

Angularjs The notation of the polling device