Android RelativeLayout programmatically Set centerInParent

Question

I have a RelativeLayout like this    lt RelativeLayout xmlns android  http   schemas android com apk res android      android orientation  horizontal      android layout width  fill parent      android layout height  wrap content      android layout marginTop  10dip  gt        lt Button         android id    id negativeButton          android layout width  wrap content           android layout height  wrap content          android textSize  20dip          android textColor   ffffff          android layout alignParentLeft  true          android background   drawable black menu button          android layout marginLeft  5dip          android layout centerVertical  true          android layout centerHorizontal  true   gt         lt Button         android id    id positiveButton          android layout width  wrap content           android layout height  wrap content          android textSize  20dip          android textColor   ffffff          android layout alignParentRight  true          android background   drawable blue menu button          android layout marginRight  5dip          android layout centerVertical  true          android layout centerHorizontal  true   gt   lt  RelativeLayout gt    I want to be able to programatically set for positiveButton the same effect as   android layout centerInParent  true    How can I make this programatically

User · Answer

I have done for 1  centerInParent 2  centerHorizontal 3  centerVertical with true and false    private void addOrRemoveProperty View view  int property  boolean flag       RelativeLayout LayoutParams layoutParams    RelativeLayout LayoutParams  view getLayoutParams        if flag           layoutParams addRule property        else           layoutParams removeRule property             view setLayoutParams layoutParams       How to call method   centerInParent - true  addOrRemoveProperty mView  RelativeLayout CENTER IN PARENT  true     centerInParent - false  addOrRemoveProperty mView  RelativeLayout CENTER IN PARENT  false     centerHorizontal - true  addOrRemoveProperty mView  RelativeLayout CENTER HORIZONTAL  true     centerHorizontal - false  addOrRemoveProperty mView  RelativeLayout CENTER HORIZONTAL  false     centerVertical - true  addOrRemoveProperty mView  RelativeLayout CENTER VERTICAL  true     centerVertical - false  addOrRemoveProperty mView  RelativeLayout CENTER VERTICAL  false     Hope this would help you

User · Answer

Just to add another flavor from the Reuben response  I use it like this to add or remove this rule according to a condition       RelativeLayout LayoutParams layoutParams                RelativeLayout LayoutParams  holder txtGuestName getLayoutParams         if  SOMETHING THAT WOULD LIKE YOU TO CHECK               if true center text          layoutParams addRule RelativeLayout CENTER IN PARENT           holder txtGuestName setLayoutParams layoutParams         else              if false remove center          layoutParams addRule RelativeLayout CENTER IN PARENT  0           holder txtGuestName setLayoutParams layoutParams

User · Answer

Completely untested  but this should work   View positiveButton   findViewById R id positiveButton   RelativeLayout LayoutParams layoutParams         RelativeLayout LayoutParams positiveButton getLayoutParams    layoutParams addRule RelativeLayout CENTER IN PARENT  RelativeLayout TRUE   positiveButton setLayoutParams layoutParams     add android configChanges  orientation screenSize  inside your activity in your manifest

[android] Android RelativeLayout programmatically Set "centerInParent"

1. centerInParent

2. centerHorizontal

3. centerVertical

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