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check to make sure scrollPosition is defined

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This commit is contained in:
Marty Alcala 2016-11-15 10:51:00 -05:00
commit f4bd7ea570
1 changed files with 8 additions and 1 deletions
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9
src/js/controllers/walletDetails.js
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@ -237,7 +237,14 @@ angular.module('copayApp.controllers').controller('walletDetailsController', fun
var prevPos; var prevPos;
function getScrollPosition() { function getScrollPosition() {
var pos = $ionicScrollDelegate.getScrollPosition().top; var scrollPosition = $ionicScrollDelegate.getScrollPosition();
if (!scrollPosition) {
$window.requestAnimationFrame(function() {
getScrollPosition();
});
return;
}
var pos = scrollPosition.top;
if (pos === prevPos) { if (pos === prevPos) {
$window.requestAnimationFrame(function() { $window.requestAnimationFrame(function() {
getScrollPosition(); getScrollPosition();