angular.module('firstApplication', ['ngMaterial']).controller('tabController', tabController);

          function tabController ($scope) {            

             $scope.boards = Array.from(Array(100).keys());

             $scope.data = {
                selectedIndex: 0,
                secondLocked:  true,
                secondLabel:   "2",
                bottom:        false
             };
             $scope.next = function() {
                $scope.data.selectedIndex = Math.min($scope.data.selectedIndex + 1, 2) ;
             };
             $scope.previous = function() {
                $scope.data.selectedIndex = Math.max($scope.data.selectedIndex - 1, 0);
                
             };
             $scope.switch = function() {
              $scope.activeTabsCounter = $("md-tab-item.md-active").length;
             }
             
             
            /*********    Here i am changing tabs     ****8**/
            
            /******** This is strict behaviour where I get the problem but randomly *****/
            $scope.switchTabs = function(){
            clearInterval(interval);
            var i = $scope.boards.length - 1; 
            var interval = setInterval(function() { 
            	  if($scope.activeTabsCounter == 1) {
                	if(i >= 0) 					                 
                $(".md-accent md-tab-item")[i--].click(); 
                $scope.switchTabs();
                } else {
                clearInterval(interval);
                }
            		
            }, 100);
           
            /*********    /Here i am changing tabs     ****8**/
           
            }
          }
          
          
          

<link href="https://rawgit.com/angular/bower-material/master/angular-material.css" rel="stylesheet"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.6/angular.js"></script>
<script src="https://rawgit.com/angular/bower-material/master/angular-material.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.6/angular-animate.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.4.6/angular-aria.js"></script>
<script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>

<div ng-app="firstApplication"> 
      <div id="tabContainer" ng-controller="tabController as ctrl" ng-cloak>
         <div> <br><br>
         <button ng-click="switchTabs()">Click here to switch tabs</button>
         <br><br>
         Current active Tabs: {{activeTabsCounter}} 
         <br>
         </div>
         <md-content class="md-padding">
            <md-tabs class="md-accent" md-selected="data.selectedIndex" md-align-tabs="{{data.bottom ? 'bottom' : 'top'}}">
               <md-tab md-on-select="switch()" id="tab{{board}}" ng-repeat="board in boards">
                  <canvas id="canvas-{{board}}-1" width="1600" height="900"></canvas>
                  <canvas id="canvas-{{board}}-2" width="1600" height="900"></canvas>
                  <md-tab-label>{{board}}</md-tab-label>
                  <md-tab-body>Item #{{board}} <br/>selectedIndex = {{board}};</md-tab-body>
               </md-tab>
            </md-tabs>
         </md-content>
      </div>
   </div>