md-chips with md-select in multi select mode - html

Question

When I am trying to generate md-chips on selecting multiple values from md-select, It is not working. Does md-chips works only with autocomplete analyser and input field?
<md-chips ng-model="launchAPIQueryParams.type">
<md-select name="launchCalType" ng-model="launchAPIQueryParams.type"
multiple="true" placeholder="Launch Type"
md-on-close='applylaunchFilter("type")'>
<md-option ng-repeat="typeOption in launchTypeOptions" ng-value="typeOption[1]">
{{typeOption[0]}}
</md-option>
</md-select>
</md-chips>

Answer 1

The short answer: No.
<md-chips> component will only takes <input> or <md-autocomplete> into its transcluded context.
However, the same thing can be achieved with md-autocompelet.
The key is set md-min-length on <md-autocomplete> to 0 so it will auto show the menu just like what a <md-select> menu would be.
Here's an example:
// controller.js
angular
.moduel('mdChipsDemo', [])
.controller('MdChipsDemoCtrl', function() {
var vm = this;
vm.selectedOption = '';
vm.searchText = '';
vm.launchAPIQueryParams = {
types: [],
};
vm.launchTypeOptions = [
{name: 'Op1', value: 1},
{name: 'Op2', value: 2},
{name: 'Op3', value: 3},
{name: 'Op4', value: 4},
];
});
// template.html
<div ng-app="mdChipsDemo" ng-controller="MdChipsDemoCtrl as vm">
<md-chips ng-model="vm.launchAPIQueryParams.types">
<md-autocomplete
md-selected-item="vm.selectedOption"
md-search-text="vm.searchText"
md-items="typeOption in vm.launchTypeOptions"
md-item-text="typeOption.name"
md-min-length="0"
placeholder="Search for a launchTypeOptions">
<span md-highlight-text="vm.searchText">{{typeOption.name}}</span>
</md-autocomplete>
<md-chip-template>
<span>{{$chip.name}}</span>
</md-chip-template>
</md-chips>
</div>
If your ultimate goal is to have multiple select ability, <md-autocomplete> also expose <md-item-template> where you can put your <md-select> in. Check the doc for md-autocomplete and you will see.
Or if you really insist on using <select>, there's an 3rd-party component on npm calls md-chips-select which does what you want.
https://www.npmjs.com/package/md-chips-select