Get font scaling factor to calculate the fontsize

I just found in the source code of Settings.System this function:

/** @hide */public static void getConfigurationForUser(ContentResolver cr,                                       Configuration outConfig, int userHandle) {    outConfig.fontScale = Settings.System.getFloatForUser(        cr, FONT_SCALE, outConfig.fontScale, userHandle);    if (outConfig.fontScale < 0) {        outConfig.fontScale = 1;    }}

There is however the FONT_SCALE in usage so I checked for that Configuration class where the documentation points to getResources().getConfiguration(). So I counld fix my code by using:

float scale = getResources().getConfiguration().fontScale;

Since my question was about to calculate the correct font size in pixel here is the way I use it nowerdays in Kotlin:

val Number.dpInPx: Int    get() = TypedValue.applyDimension(        TypedValue.COMPLEX_UNIT_DIP, toFloat(), Resources.getSystem().displayMetrics).toInt()val Number.spInPx: Int    get() = TypedValue.applyDimension(        TypedValue.COMPLEX_UNIT_SP, toFloat(), Resources.getSystem().displayMetrics).toInt()

The usage is:

val textSize = 42.spInPxval padding = 8.dpInPx

You can set system font according to font scale.

Example: For huge font scale is 2.0 then you can set as follow.

Configuration config = new Configuration();config.fontScale = 2.0f;getResources().getConfiguration().setTo(config);

Add "float def" param to the end of the

public static float getFloat(ContentResolver cr, String name, float def)

Example:

scale = android.provider.Settings.System.getFloat(getActivity().getContentResolver(),                                    android.provider.Settings.System.FONT_SCALE, 1f);