javascript - virtual keyboard with autocomplete in form -

using angularjs.

i want add virtual keyboard form. therefore tried using keyboard. in setup explain use input field or textarea. however, using autocomplete <md-autocomplete> angular-material, not have input field. tried binding opening event of keyboard tag. opening work, when trying type, following error occurs:

uncaught typeerror: k.createtextrange not function

the same error occurs when putting id in form field.

i tried, putting hidden input field behind autocomplete tag , copying value of input after finishing typing. however, thing here is, kind of lose autocomplete-feature, when copying input after finishing typing (autocomplete should work while typing well).

so right code this, when trying use form tag keyboard id:

<form ng-submit="mmsisearch()" id="keyboard" ng-click="showkeyboard()" layout="row" layout-align="center">                     <md-autocomplete                         required = ""                         md-autofocus="true"                         md-input-name="autocompletefield"                         md-input-minlength="2"                         md-input-maxlength="20"                         md-no-cache="nocache"                         md-search-text="shipsearchvalue"                         md-items="item in search(shipsearchvalue)"                         md-item-text="item"                         flex="80">                       <md-item-template>                         <span md-highlight-text="shipsearchvalue">{{ item }}</span>                       </md-item-template>                       <md-not-found>                         no matches found.                       </md-not-found>                     </md-autocomplete>                     <md-button type="submit" flex="20">                       search                     </md-button>                   </form> 

so question now, know how use virtual keyboard md-autocomplete option. if have tried other libraries, keyboard should not directive, multiple directive error occurs. open other library, if working. thanks!