I have variable at dimens.xml
<resources> <dimen name="btn_text_size">12sp</dimen> </resources>
And i can use it in layout file:
<TextView android:textSize="@dimen/btn_text_size" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/dialog_tags_complete" />
But this 2 methods give different results. I know that
getDimension are based on the current DisplayMetrics associated with the resources.
But what should i do to make this 2 ways looks the same?
setTextSize( float ) expects a scaled pixel value. So,
setTextSize( 12 ) would give you the desired result. However,
getDimensionPixelSize() return the size in units of pixels, so you need to use the unit-typed variant of
setTextSize() as follows:
setTextSize( TypedValue.COMPLEX_UNIT_PX, getDimensionPixelSize( R.dimen.tag_text_size ) );
this will work just fine 🙂
You should also remember that textView has a setTextSize(int unit,float size), which should be used while setting size from code but not from xml dimen.
I have currently the same thing. Did set a dimension in dimens.xml and applied it programmatically, which is 3 times that big, than when settings via xml.
I checked also:
TextView.getTextSize() = 92f getResources().getDimension(R.dimen ...) = 92f
TextView.setTextSize(92) != TextView with size from XML, other flags like TypedValue.COMPLEX_UNIT_PX make it even bigger.
The default setTextSize does apply COMPLEX_UNIT_SP by default btw. So once again, the Android API is inconsistent, so setting programmatically only and adapt sizes, so they fit, will be my solution.
Edit: Setting text size programmatically under Galaxy Note 2 (4.4.2) vs Note 4 (5.0.1) leads to a totally different result -.-