Android Apps/Applications Mobile Development. We need to use flush (); in order to send the PHP output buffer out to the browser. Step 1 − Create a new project in Android Studio, go to File ⇒ New Project and fill all required details to create a new project. Why can't you copy files from an external folder into atom. In android, the ProgressBar supports two types of modes to show the progress, those are Determinate and Indeterminate.. Android ProgressBar with Determinate Mode. In the Page_Load you will notice that I am simply registering a startup JavaScript which is a jQuery event handler that executes btnSubmit button click client side as soon as the document is loaded. So here we will discuss three methodsRead More https://makitweb.com/display-loading-image-when-ajax-call-is-in-progress ProgressChanged: Update the actual value of the progress bar.