Question

.controller('PizzaCtrl', ['$scope','$state','$ionicLoading',
    function($scope, $state, $ionicLoading) {

    $scope.$emit('menu-refresh-request');

    $scope.$on('menu-refresh-response', function(event) {
        console.log("pizza");
        $scope.$broadcast('scroll.refreshComplete');
        $scope.items = $scope.$parent.menu.pizze;
        console.log($scope.items[1].price);
        $ionicLoading.hide();
    });
    $scope.doRefresh = function() {
        $scope.$emit('menu-refresh-request');
    };
}])

所有数据都会检出。正确的项目信息将记录到控制台。但是，我视图中的ng-repeat="item in items"指令不会使用披萨项更新。

我尝试在事件监听器中使用$scope.$apply和$scope.$digest，但控制台发出错误消息称摘要已在进行中。

另外值得注意的是，除了菜单的不同部分外，该控制器有两个兄弟控制器，它们具有相同的逻辑。在我点击状态之前，console.log("pizza")语句不会被执行。

我的观点有没有明确的原因没有更新？

<ion-refresher pulling-text="Updating Menu..." on-refresh="doRefresh()">
<div class="list menu-list">
    <a class="item menu-item" ng-repeat="item in items" ui-sref="menu.pizza-detail({ index: $index })">
        <div class="row">
            <h3 class="row" ng-bind="item.name"></h3>
            <div class="row">
                <div class="list-price col col-15">
                    <h4 class="list-value" ng-bind="item.price"></h4>
                </div>
                <div class="list-description col col-85">
                    <p ng-bind="item.description"></p>
                </div>
            </div>
        </div>
    </a>
</div>

Answer 1

而不是使用$ scope。$ apply尝试使用$ timeout angular service。 $ timeout不会产生“$ digest已在进行中”之类的错误，因为$ timeout告诉Angular在当前周期之后有超时等待，这样它确保了摘要周期之间不会发生任何冲突，从而输出$超时将在新的$ digest循环上执行。

ntdll.dll!_ZwAlpcSendWaitReceivePort@32()   Unknown
rpcrt4.dll!LRPC_CASSOCIATION::AlpcSendWaitReceivePort(unsigned long,struct _PORT_MESSAGE *,struct _ALPC_MESSAGE_ATTRIBUTES *,struct _PORT_MESSAGE *,unsigned long *,struct _ALPC_MESSAGE_ATTRIBUTES *,union _LARGE_INTEGER *)   Unknown
rpcrt4.dll!LRPC_BASE_CCALL::DoSendReceive(void) Unknown
rpcrt4.dll!LRPC_BASE_CCALL::SendReceive(struct _RPC_MESSAGE *)  Unknown
rpcrt4.dll!_I_RpcSendReceive@4()    Unknown
rpcrt4.dll!_NdrSendReceive@8()  Unknown
rpcrt4.dll!@NdrpSendReceive@4() Unknown
rpcrt4.dll!_NdrClientCall2()    Unknown
ole32.dll!ServerAllocateOXIDAndOIDs(void * hServer, void * phProcess, unsigned __int64 * poxidServer, long fApartment, unsigned long cOids, unsigned __int64 * aOid, unsigned long * pcOidsAllocated, tagOXID_INFO * poxidInfo, tagDUALSTRINGARRAY * pdsaStringBindings, tagDUALSTRINGARRAY * pdsaSecurityBindings, unsigned __int64 * pdwOrBindingsID, tagDUALSTRINGARRAY * * ppdsaOrBindings) Line 246    C
ole32.dll!CRpcResolver::ServerRegisterOXID(tagOXID_INFO & oxidInfo, unsigned __int64 * poxid, unsigned long * pcOidsToAllocate, unsigned __int64 * arNewOidList) Line 1028  C++
ole32.dll!OXIDEntry::RegisterOXIDAndOIDs(unsigned long * pcOids, unsigned __int64 * pOids) Line 1303    C++
ole32.dll!OXIDEntry::AllocOIDs(unsigned long * pcOidsAlloc, unsigned __int64 * pOidsAlloc, unsigned long cOidsReturn, unsigned __int64 * pOidsReturn)   C++
ole32.dll!CComApartment::CallTheResolver() Line 639 C++
ole32.dll!CComApartment::InitRemoting() Line 996    C++
ole32.dll!CComApartment::StartServer() Line 1204    C++
ole32.dll!InitChannelIfNecessary() Line 1021    C++
ole32.dll!CDllHost::GetApartmentToken(unsigned long & hActivator) Line 461  C++
ole32.dll!DoSTMTApartmentCreate(unsigned long & hActivator) Line 211    C++
ole32.dll!CClassCache::GetActivatorFromDllHost(int fSixteenBit, unsigned long dwDllThreadModel, unsigned long * phActivator)    C++
ole32.dll!CClassCache::GetOrCreateApartment(const ACTIVATION_PROPERTIES & ap, DLL_INSTANTIATION_PROPERTIES * pdip, unsigned long * phActivator) Line 4892   C++
ole32.dll!FindOrCreateApartment(const _GUID & Clsid, unsigned long actvflags, DLL_INSTANTIATION_PROPERTIES * pdip, unsigned long * phActivator) Line 2653   C++
ole32.dll!CProcessActivator::GetApartmentActivator(ActivationPropertiesIn * pInActProperties, ISystemActivator * * ppActivator) Line 1214   C++
ole32.dll!CProcessActivator::CCICallback(unsigned long dwContext, IUnknown * pUnkOuter, ActivationPropertiesIn * pActIn, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties) Line 1703 C++
ole32.dll!CProcessActivator::AttemptActivation(ActivationPropertiesIn * pActIn, IUnknown * pUnkOuter, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties, HRESULT (unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) * pfnCtxActCallback, unsigned long dwContext) Line 1630   C++
ole32.dll!CProcessActivator::ActivateByContext(ActivationPropertiesIn * pActIn, IUnknown * pUnkOuter, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties, HRESULT (unsigned long, IUnknown *, ActivationPropertiesIn *, IActivationPropertiesIn *, IActivationPropertiesOut * *) * pfnCtxActCallback) Line 1487    C++
ole32.dll!CProcessActivator::CreateInstance(IUnknown * pUnkOuter, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties) Line 1377    C++
ole32.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter, IActivationPropertiesOut * * ppActPropsOut) Line 1917    C++
ole32.dll!CClientContextActivator::CreateInstance(IUnknown * pUnkOuter, IActivationPropertiesIn * pInActProperties, IActivationPropertiesOut * * ppOutActProperties) Line 685   C++
ole32.dll!ActivationPropertiesIn::DelegateCreateInstance(IUnknown * pUnkOuter, IActivationPropertiesOut * * ppActPropsOut) Line 1917    C++
ole32.dll!ICoCreateInstanceEx(const _GUID & Clsid, IUnknown * punkOuter, unsigned long dwClsCtx, _COSERVERINFO * pServerInfo, unsigned long dwCount, unsigned long dwActvFlags, tagMULTI_QI * pResults, ActivationPropertiesIn * pActIn) Line 1334  C++
ole32.dll!CComActivator::DoCreateInstance(const _GUID & Clsid, IUnknown * punkOuter, unsigned long dwClsCtx, _COSERVERINFO * pServerInfo, unsigned long dwCount, tagMULTI_QI * pResults, ActivationPropertiesIn * pActIn) Line 332  C++
ole32.dll!CoCreateInstanceEx(const _GUID & Clsid, IUnknown * punkOuter, unsigned long dwClsCtx, _COSERVERINFO * pServerInfo, unsigned long dwCount, tagMULTI_QI * pResults) Line 157    C++
ole32.dll!CoCreateInstance(const _GUID & rclsid, IUnknown * pUnkOuter, unsigned long dwContext, const _GUID & riid, void * * ppv) Line 110  C++

Answer 2

原来这个问题的解决方案是我需要在<ion-refresher>标记中添加一个缺少的结束标记。

<ion-refresher pulling-text="Updating Menu..." on-refresh="doRefresh()"></ion-refresher>
<div class="list menu-list">
    <a class="item menu-item" ng-repeat="item in items" ui-sref="menu.pizza-detail({ index: $index })">
        <div class="row">
            <h3 class="row" ng-bind="item.name"></h3>
            <div class="row">
                <div class="list-price col col-15">
                    <h4 class="list-value" ng-bind="item.price"></h4>
                </div>
                <div class="list-description col col-85">
                    <p ng-bind="item.description"></p>
                </div>
            </div>
        </div>
    </a>
</div>

尽管范围很大，范围变量仍未在视图中更新。$ digest

2 个答案: