Device settings independent font size

Question

While developing my app I realised if someone changes device font size from normal, my application font sizes change too and it destroys some of the visuals I designed. So I wan

Answer 1

check the source code DisplaySettings.java, here is the method to control font size scale

public void writeFontSizePreference(Object objValue) {
    try {
        mCurConfig.fontScale = Float.parseFloat(objValue.toString());
        ActivityManagerNative.getDefault().updatePersistentConfiguration(mCurConfig);
    } catch (RemoteException e) {
        Log.w(TAG, "Unable to save font size");
    }
}

here is a solution keep the font size in different fontscale.

float textSize = 22f;
mTextView.setTextSize(textSize / getResources().getConfiguration().fontScale);

and I think @shoe rat's answer is more better for an activity or application context.