dp转px sp转px，方法

public class Adaptation {    public int dp2px(Context context,float dp) {        final float scale = context.getResources().getDisplayMetrics().density;        return (int) (dp * scale + 0.5f);    }    //sp转px    public int sp2px(Context context,float sp) {        final float scale = context.getResources().getDisplayMetrics().scaledDensity;        return (int) (sp * scale + 0.5f);    }}