The Xposed Installer framework was developed by rovo89 on the XDA forums. With it, you can safely pick and choose new functions for your Android device. For instance, you can add new functions to power menu and quick settings menu, block spam calls, get other phone’s functions, enhance battery usage and many more via modules. It is easy and safe to use. Before you get start installing Xposed Framework on Android 5 Lollipop, please note that currently it only supports phones with ARMv7 processors. It will not work on phones with ARMv8 64-bit processor (the developer may fix it soon). Do check your phone before installing the framework. Also, make a nandroid backup before installing the framework. Because, this is an alpha build and if anything went wrong, the safest way to uninstall Xposed framework from your device is to restore a nandroid backup.

Installation Instruction for Xposed Installer Framework on Lollipop

  1. First, make sure that you have rooted and custom recovery installed on your phone. Also, enable ‘Unknown sources’ on your phone (Settings -> Security -> Unknown sources)
  2. Download Xposed ARM Zip [HERE] and Xposed Installer APK [HERE] [Source] and place both files on your phone’s memory card.
  3. Boot your phone into custom recovery mode and then navigate to ‘Xposed ARM zip’ file and flash it (choose install zip from sdcard for CWM or choose Install for TWRP). Once done, reboot your phone.
  4. Now, install Xposed Installer app as a normal APK (Just tap “XposedInstaller_3.0-alpha.apk” that you have previously downloaded).

Once the installation is completed, open Xposed Installer app, head to the “Download” section, browse modules and activate all the modules you want. Enjoy! (Source – XDA)