Android security Issues (iii) Fishing procedures

The topic is to continue the Android security issue (ii) Program lock extension

I've shown how to make a program lock before. When you open the specified application, a password page pops up.

The topic of the program lock is related to security, but this should belong to the scope of prevention, if the malicious use of, then the consequences ...

This issue I come to reveal the principle of a fishing program, I hope that the majority of users do not be deceived, the most important thing is: I hope you realize that security questions

I used a timed scan of the activity to check if the open page was the page we needed.

ComponentName topactivity = Mactivitymanager.getrunningtasks

(1). Get (0). topactivity;

How to use it for fishing? For example, I opened the Taobao, and then want to log in, check out my Taobao, this time will open the following page