离子视图转换闪烁问题 [英] Ionic view transition flickering issue
问题描述
我调用API并在 $ ionicView.beforeEnter
中返回绑定响应。但是,当输入视图时,有时我会加载视图但数据在几秒钟之后才会被绑定,尤其是在网络连接不良时。这个问题怎么解决?
I call API and return the response for binding in $ionicView.beforeEnter
. However, when the view is entered, sometimes I got the view loaded but the data is not being bind until few seconds later, especially in a bad network connectivity. How could this issue be solved?
这会因为我的API调用是异步的吗?
Would this because of my API call is asynchronous?
angular.module('app').controller(function($scope, ApiMethod) {
$scope.$on("$ionicView.beforeEnter", function(event, data){
ApiMethod.GetFormInfo().$promise.then(function (res) {
$scope.res = res;
}, function (errRes) {
})
});
});
<ion-content>
<form name="form">
<div class="list">
<label class="item item-input">
<input type="text" placeholder="First Name" ng-model="res.firstName">
</label>
<label class="item item-input">
<input type="text" placeholder="Last Name" ng-model="res.lastName">
</label>
<label class="item item-input">
<textarea placeholder="Comments" ng-model="res.comments"></textarea>
</label>
</div>
<button type="submit">Submit</button>
</form>
</ion-content>
推荐答案
是的,由于暂停异步,有一个闪烁 ApiMethod
致电。为了在我的Ionic应用程序中优雅地处理这个,我使用 $ ionicLoading
。这将冻结用户移动,直到数据被加载。我认为最好通知他们加载然后让他们提出一个空白视图。
Yes, there is a flicker because of the pause asynchronous ApiMethod
call. To gracefully handle this inside my Ionic application I use $ionicLoading
. This will "freeze" the user from moving around until the data has been loaded. I believe it is better to notify them of the loading then make them question a blank view.
已实施:
angular.module('app').controller(function($scope, ApiMethod, $ionicLoading) {
$scope.show = function() {
$ionicLoading.show({
template: 'Loading...'
}).then(function(){
console.log("The loading indicator is now displayed");
});
};
$scope.hide = function(){
$ionicLoading.hide().then(function(){
console.log("The loading indicator is now hidden");
});
};
$scope.$on("$ionicView.beforeEnter", function(event, data){
// Show loading
$scope.show();
ApiMethod.GetFormInfo().$promise.then(function (res) {
$scope.res = res;
// Hide loading
$scope.hide();
}, function (errRes) {
})
});
});
参考: $ ionicLoading
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