AngularJS need to click more than 1 time for UI update? -

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i have simple button inside toolbar:

<md-toolbar>     <div class="md-toolbar-tools" layout="row" layout-align="space-between left">         <md-button class="md-icon-button" aria-label="settings">             <md-icon md-svg-icon="images/ic_local_airport_24px.svg"></md-icon>         </md-button>         <h2>             <span class="md-title">                 <font>                     title                 </font>             </span>         </h2>         <span>             <!--             <md-button class="md-icon-button" aria-label="languageenglish"             style='width: 1px !important;             padding-left: 2px !important;             padding-right: 2px !important;'>|</md-button>             -->             <md-button ng-click='test()' class="md-icon-button">test</md-button>         </span>     </div> </md-toolbar>

when click button, function test() fires, ripple effect doesn't. need click twice ripple effect take place.

i have tab:

<md-tabs class="tabs" layout="row" md-dynamic-height="" md-border-bottom=""      md-align-tabs="bottom" md-stretch-tabs="always" md-no-pagination="true" md-no-ink="false"     md-swipe-content="true">     <md-tab label="home" ng-click="tab1clicked()">         <md-tab-label>             <md-icon md-svg-icon="images/ic_local_airport_24px.svg"></md-icon>             <div class="tabsdivider"></div>         </md-tab-label>     </md-tab>     <md-tab label="location" ng-click="tab2clicked()">         <md-tab-label>             <md-icon md-svg-icon="images/ic_local_airport_24px.svg"></md-icon>         </md-tab-label>     </md-tab> </md-tabs>

when click tab, fires function tab ui not updated. example, tab1 clicks tab2, tab2 background color not updated although logic inside function has been executed. need click 2 times upto > 5 times (intermittently, 1 click changes ui).

why happen? how resolve it?


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