In some advance mobile app, we see a functionality of share the app. In the website:- i made an android app. In the website, there is function of add codes, by which i added some functions like embed Instagram feed, Twitter feed etc. But can't find any code online by which i can insert a share app function in which when a user click the share app button then all shareable options of the mobile handset open. Can someone help me to give me such code? I already add share app button in my app in which user can see app download link, through which user can copy the link and share it. But i want auto share option come out function. Please someone help me.