setTextSize accordingly to ImageView's image size

Question

I got a horizontally oriented LinearLayout with an ImageView and a TextView. TextView has a text of 1- or 2-digits number.

What I need is to set text size of a TextView to be exactly same in a hight of an ImageView's image.

I know I can get ImageView's Image height , but how can I make textSize as high accordingly?

Difficult, i would say try and error – webo80 Feb 10 '15 at 14:35 — webo80, Feb 10 '15 at 14:35

score 1 · Answer 1 · edited Jun 20 '20 at 09:12

View.getHeight():

Return the height of your view. Returns

Returns
The height of your view, in pixels.

TextView.setTextSize(float):

Set the default text size to the given value, interpreted as "scaled pixel" units. This size is adjusted based on the current density and user font size preference.

Parameters
size The scaled pixel size.

This basically means you need to convert the height (px) to text height (sp):

float density = getResources().getDisplayMetrics().scaledDensity;
float textHeight = imageHeight / density;

score 0 · Answer 2 · answered Feb 10 '15 at 14:36

0

Give constant height-width to both(image view and textview)... or try scaleType="fitxy"...

answered Feb 10 '15 at 14:36

Mayur R. Amipara

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score 0 · Answer 3 · answered Feb 10 '15 at 14:42

0

You can try:

float height = imageView.getHeight();
TextView tv = new TextView(context);
tv.setTextSize(height)

I'm not sure this will do exactly what you want, but it is the most obvious starting point I see.

answered Feb 10 '15 at 14:42

Nathaniel D. Waggoner

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score 0 · Accepted Answer · edited May 23 '17 at 11:50

well, I've found myself the following :

first we need to find a real height of an ImageView's Image - it's not as high as the ImageView, so it's explained well here : How to get the width and height of an android.widget.ImageView?

next we set the height of the text :

textView.setTextSize(TypedValue.COMPLEX_UNIT_PX, 
imageView.getMeasuredHeight()*(imageView.getMeasuredHeight()/
imageView.getMeasuredWidth()));

which means we are setting textSize in raw pixels, then we take height and multiply it with the picture's ratio of height to width so TextView's text size will be exactly high as the image

setTextSize accordingly to ImageView's image size

4 Answers4