网页未显示在webview中并被重定向到浏览器

I am trying to implement basic webview. However, when I enter the url and click on a button to load it, I get a popup asking me to choose from a list of applications to load that webpage.The webpage then loads perfectly in the browser.I have added the INTERNET permission in the Manifest file. Please help me to spot the error or missing logic.I am trying to implement basic webview. However