setBackgroundResource() discards my XML layout attributes
I ran into this issue as well. Presumably you're using a LayerList resource drawable? That's what I was using. Unfortunately, I found no "real" way of fixing it, it seems like a bug in the code, but I didn't chase it down. However, I was lucky in the sense that I was setting the "buggy" background after my view had already been rendered properly, so it was just a matter of saving then restoring the padding values after the background is set, e.g:
if(condition) { int bottom = theView.getPaddingBottom(); int top = theView.getPaddingTop(); int right = theView.getPaddingRight(); int left = theView.getPaddingLeft(); theView.setBackgroundResource(R.drawable.entry_bg_with_image); theView.setPadding(left, top, right, bottom); }
EDIT:As an alternative, you don't have to use the previous values of padding, you can also use a dimension value:
int pad = resources.getDimensionPixelSize(R.dimen.linear_layout_padding); theView.setBackgroundResource(R.drawable.entry_bg_with_image); theView.setPadding(pad, pad, pad, pad);
Adding onto what dmon has suggested, here is a function you can just throw in your util class so you don't have to jump through hoops every time you update a resource. This is really just his code wrapped in a function.
public static void updateBackgroundResourceWithRetainedPadding(View view, int resourceID){ int bottom = view.getPaddingBottom(); int top = view.getPaddingTop(); int right = view.getPaddingRight(); int left = view.getPaddingLeft(); view.setBackgroundResource(resourceID); view.setPadding(left, top, right, bottom);}
This is fixed in Lollipop, so
public static void setBackgroundResource(@NonNull View view, @DrawableRes int resId) { if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) { int paddingTop = view.getPaddingTop(); int paddingLeft = view.getPaddingLeft(); int paddingRight = view.getPaddingRight(); int paddingBottom = view.getPaddingBottom(); view.setBackgroundResource(resId); view.setPadding(paddingLeft, paddingTop, paddingRight, paddingBottom); } else { view.setBackgroundResource(resId); }}