How can I trigger an event by onselect of autocomplete element of materialize css

问题

I am using autocomplete feature of materialize css.

I am able to trigger a server call from the input field and getting the JSON data and able to display the result. But I am not able to trigger event by onselect of the autocomplete item.

My code for user input:

<input placeholder="Search ..." class="autocomplete" type="text" (keyup)="onKey($event)">

The onKey() getting the server data and displaying the result as below:

The problem i am facing is while on select of any drop down value to get the selected value

回答1:

Provide your onselect handler as the property onAutocomplete of the options object.

const options = {
  data: {
    "All": null,
    "Apple": "https://upload.wikimedia.org/wikipedia/commons/f/fa/Apple_logo_black.svg",
    "Google": "https://upload.wikimedia.org/wikipedia/commons/5/53/Google_%22G%22_Logo.svg",
    "Microsoft": null
  },
  onAutocomplete: displayResult('autocompleted as')
}
const input = document.querySelector('.autocomplete');
const instances = M.Autocomplete.init(input, options);
const resultContainer = document.querySelector('.result')

function displayResult(state) {
  return function(text) {
    resultContainer.innerText = "Input " + state + " " + text
  }
}

<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-rc.2/css/materialize.min.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/materialize/1.0.0-rc.2/js/materialize.min.js"></script>

<p class="result">Nothing selected in input</p><br>
<div class="input-field col s12">
  <input type="text" id="autocomplete-input" class="autocomplete" onchange="displayResult('changed to')(this.value)">
  <label for="autocomplete-input">Autocomplete</label>
</div>

回答2:

have you tried by adding onAutocomplete function in this way

$('input.autocomplete').autocomplete({
      data: {
        "Apple": null,
        "Microsoft": null,
        "Google": 'https://placehold.it/250x250'
      },
      onAutocomplete: function(val) {
          console.log(val);
      }
    });

来源：https://stackoverflow.com/questions/51458090/how-can-i-trigger-an-event-by-onselect-of-autocomplete-element-of-materialize-cs

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