根据dpi和分辨率缩放TextView大小

Question

How can I choose text size so that it looks the same on every device? I find it to be an impossible task, probably you will say that I should make different values for each dpi but that doesn't solve the problem, because there are phones with the same dpi but different screen resolution, and in the end it doesn't look the same. Anyone can help me here?

Answer 1

The Android guidelines suggest to use the SP dimension for text: http://developer.android.com/training/multiscreen/screendensities.html

An SP dimension is dependent on the screen density but also user preferences. Let's say a user configures his phone for big font (vision problems for example) your app will be accessible for this user.

In practice it looks like this: textSize="16sp"

Answer 2

If you insist on having the same looks on every device, you can manage some details on different devices. Look at webpage Display class and WindowManager . Here is a sample code that I have used for a certain UI element:

Display display = getActivity().getWindowManager().getDefaultDisplay();
Point size = new Point();
display.getSize(size);

Good luck with this. It's not easy to manage all your graphics.