Javascript 从内部事件回调更改绑定角度变量
我试图在加载视频时更改输入字段的值。以下是相关代码: 这项工作:Javascript 从内部事件回调更改绑定角度变量,javascript,angularjs,Javascript,Angularjs,我试图在加载视频时更改输入字段的值。以下是相关代码: 这项工作: $scope.stopRecording = function () { // value of the input changes as expected $scope.videoEndPos = 10; }; 这并不重要 $scope.stopRecording = function () { video.onloadedmetadata = function() { $scope
$scope.stopRecording = function () {
// value of the input changes as expected
$scope.videoEndPos = 10;
};
这并不重要
$scope.stopRecording = function () {
video.onloadedmetadata = function() {
$scope.videoEndPos = 10;
// the value of the input does not change, but this still correctly outputs 10
console.log($scope.videoEndPos);
};
};
为了保持简短,我省略了一些重要的视频内容,但这部分正在工作,并且加载的元数据正在正常启动,因此角度和输入都很时髦。但是,如果您怀疑我遗漏了一些相关代码,请告诉我。视频。onloadedmetadata可能是一个异步调用,在摘要循环之后才会返回。将其更改为:
$scope.stopRecording = function () {
video.onloadedmetadata = function() {
$scope.$apply(function() {
$scope.videoEndPos = 10;
});
};
};
video.stopRecording
发生在角度宇宙之外,因此它不知道变化。您需要使用的是,它允许您从外部执行对范围的更改
$scope.stopRecording = function () {
video.onloadedmetadata = function() {
$scope.$apply(function(){
$scope.videoEndPos = 10;
});
// the value of the input does not change, but this still correctly outputs 10
console.log($scope.videoEndPos);
};
};