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为什么我无法将更新传递给我的指令,我已经失去了方向。AngularJS =?bind not updating
我试图用下面的一段代码来完成的是,可以通过按下一个按钮来设置焦点。然而,问题在于drInput中的“焦点”绑定只能在指令加载时设置,只要它在drWrap中发生变化时就会更改。怎么回事,我该如何解决这个问题?
现在,女士们,先生们,我向你们介绍:代码!
<div ng-app="myApp">
<dr-wrap></dr-wrap>
</div>
var myApp = angular.module('myApp', []);
myApp.directive('drWrap', function($timeout) {
return {
scope: {
focus: '=?bind'
},
restrict: 'E',
replace: 'true',
template: '<div><button ng-click="openSearch()">focus</button><dr-input focus="focusSearch" /></div>',
link: function(scope, elem, attr){
scope.openSearch = function(){
$timeout(function(){
scope.focusSearch = true
alert('scope.focusSearch 2 = ' + scope.focusSearch)
}, 1000)
}
}
};
})
.directive('drInput', function() {
return {
scope: {
focus: '=?bind'
},
restrict: 'E',
replace: 'true',
template: '<input type="test" focus-me="{{ focus }}" />',
link: function(scope, elem, attr){
scope.$watch('focus', function(value){
if(value != undefined){
scope.focus = value
alert('scope.focus = ' + scope.focus)
}
})
}
};
})
.directive('focusMe', ['$timeout', function ($timeout) {
return {
link: function (scope, element, attrs) {
attrs.$observe('focusMe', function(value){
if ((value === true) || (value == 'true')) {
$timeout(function() {
element[0].focus()
scroll(element[0])
})
} else {
element[0].blur()
}
})
}
}
}])
和提琴! https://jsfiddle.net/L56rdqLp/168/
我在你的jsfiddle之前,但是......你是什么意思,“问题是,只有当指令加载时才会设置绑定,怎么回事,我该如何解决这个问题? – quirimmo
我已详细阐述。谢谢 ;-) –