android - dp转换为px 和 sp转换为px

Answer 1

0.5 should ensure accuracy after rounding.
To convert to sp, you can refer to the FONT_SCALE attribute value in Settings.System to make corresponding adjustments.

Answer 2

public static int sp2px(Context context, float spValue) {  
        final float scale = context.getResources().getDisplayMetrics().scaledDensity;  
        return (int) (spValue * scale + 0.5f);  
    }