FILL_PARENT (renamed MATCH_PARENT in API Level 8 and higher), which means that the view wants to be as big as its parent (minus padding)
Programming Tips - fill_parent vs. match_parent
Date: 2018aug14
OS: Android
Q. fill_parent vs. match_parent
A. Use match_parent, it's been preferred since API Level 8
https://developer.android.com/reference/android/view/ViewGroup.LayoutParams
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