A small tips if you want double tap to sleep with Xperia home launcher
Use a root explorer and open this folder: /data/data/com.sonymobile.home/shared_prefs
Look for: <boolean name="user_settings_double_tap_to_sleep" value="false" />
Change false by true and save.
Go in security settings and activate xperia home as device admin app.
Reboot and double tap will work. But if you go back in Xperia home settings you will have to do procedure again
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