android doc showing a list of apps

i am getting a mac like hide/show dock on my android 4.4.2 which never goes away. I can choose the 4 sides. but if I touch close to a side doc shows

please delete doc
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rgb192Asked:
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RobOwner (Aidellio)Commented:
Can you please post a screenshot? Hold down home and power at the same time to get one.
I'm running 4.4.2 on my tablet so I can try to replicate your issue but I need more info.
Also what do you mean by
I can choose the 4 sides

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rgb192Author Commented:
doc is now gone. Thanks for screenshot idea
rgb192Author Commented:
Press and hold 'back key' to hide / show doc.
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