how to close external pdf reader activity from our app Activity?
In my project i have one requirement like this, i need to download & open pdf coming from server and open it with in the app only. i don't have any library to open pdf file , so i'm using this url Open PDF in android with Adobe Reader code
my problem is while opening the pdf through adobe reader if i click the home button or back button i need to stop opening the pdf. adobe reader is external app how to close it through our activity?