hideTitleLoading

<h1>Please press the following buttons</h1>
<a href="javascript:void(0)" class="btn show">Show loading</a>
<a href="javascript:void(0)" class="btn hide">Hide loading</a>

<script>
function ready(callback) {
  // Invoke directly if JSBridge is already injected
  if (window.AlipayJSBridge) {
    callback && callback();
  } else {
    // Otherwise listen to `AlipayJSBridgeReady` event
    document.addEventListener('AlipayJSBridgeReady', callback, false);
  }
}
ready(function(){
  document.querySelector('.show').addEventListener('click', function(){
    AlipayJSBridge.call('showTitleLoading');
  });

  document.querySelector('.hide').addEventListener('click', function(){
    AlipayJSBridge.call('hideTitleLoading');
  });
});
</script>