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爲什麼我無法將更新傳遞給我的指令,我已經失去了方向。AngularJS =?bind not updating
我試圖用下面的一段代碼來完成的是,可以通過按下一個按鈕來設置焦點。然而,問題在於drInput中的「焦點」綁定只能在指令加載時設置,只要它在drWrap中發生變化時就會更改。怎麼回事,我該如何解決這個問題?
現在,女士們,先生們,我向你們介紹:代碼!
<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......你是什麼意思,「問題是,只有當指令加載時纔會設置綁定,怎麼回事,我該如何解決這個問題? – quirimmo
我已詳細闡述。謝謝 ;-) –