AngularJS 如何加载模板宽度 Controller 并重用它？

Question

我有这个代码:

<div class="mdl-cell mdl-cell--5-col mdl-shadow--4dp" style="margin-bottom:0;" ng-show="sub.view == 'fundoCaixa'">
    <div ng-if="sub.view=='fundoCaixa'" ng-controller="vender-fundoCaixa">
        <div ng-include="'views/vender/fundoCaixa.html'"></div>
    </div>
</div>

<div class="mdl-cell mdl-cell--5-col mdl-shadow--4dp" style="margin-bottom:0;" ng-show="sub.view == 'sangria'">
    <div ng-if="sub.view=='sangria'" ng-controller="vender-sangria">
        <div ng-include="'views/vender/sangria.html'"></div>
    </div>
</div>

<div class="mdl-cell mdl-cell--5-col mdl-shadow--4dp" style="margin-bottom:0;" ng-show="sub.view == 'apelido'">
    <div ng-if="sub.view=='apelido'" ng-controller="vender-apelido">
        <div ng-include="'views/vender/apelido.html'"></div>
    </div>
</div>

但是如果你看到它对所有 subview 都是相同的规则，我需要重用它，我该怎么做？

<div class="mdl-cell mdl-cell--5-col mdl-shadow--4dp" style="margin-bottom:0;" ng-show="sub.view == '$var_here'">
    <div ng-if="sub.view=='$var_here'" ng-controller="$var_here">
        <div ng-include="'views/vender/$var_here.html'"></div>
    </div>
</div>

$var_here 更改要加载的上下文。

谢谢大家!

Answer 1

您不需要使用动态 Controller 。使用模板将代码放入指令中。您的代码可能如下所示(例如):

<div class="mdl-cell mdl-cell--5-col mdl-shadow--4dp" style="margin-bottom:0;" ng-show="sub.view == '$var_here'">
  <fundo-caixa ng-if="ctrl.fundoCaixa"></fundo-caixa>
  <sangria ng-if="ctrl.sangria"></sangria>
  <apelido ng-if="ctrl.apelido"></apelido>
</div>

每个指令都有自己的 Controller (因此不需要动态分配它们)加上模板 url，这样就消除了 ng-include。您可以尝试使用 ng-if 的方式。您是要使用三个不同的变量并在 Controller 中为它们分配 true/false，还是像您在示例中那样进行检查。