Android: Set ImageView layout_height programmatically

Question

I have an ImageView in my main.xml file:

Answer 1

You can do something like this:

LinearLayout.LayoutParams layoutParams  = new LinearLayout.LayoutParams(width_physical_pixels, height_physical_pixels);
imageView.setLayoutParams(layoutParams);

But in the parameters it takes a pixel, so you would have to use the formula to convert pixels to dp, for example you can use this to convert:

float scale = getBaseContext().getResources().getDisplayMetrics().density;    
px = dp_that_you_want * (scale / 160);

Putting everything together:

//Get screen density to use in the formula.
float scale = getBaseContext().getResources().getDisplayMetrics().density;    
px = dp_that_you_want * (scale / 160);

LinearLayout.LayoutParams layoutParams  = new LinearLayout.LayoutParams(px, px);
imageView.setLayoutParams(layoutParams);

I don't know if this is what you are looking for, or if it will work, so let me know if it does.