dp转px,sp转px

public class DensityUtil {

    public static int sp2px(Context context, int spValue) {
        float pxDimension = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX, spValue, context.getResources().getDisplayMetrics());
        return (int) pxDimension;
    }

    public static int dip2px(Context context, int dp) {
        float pxDimension = TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, dp, context.getResources().getDisplayMetrics());
        return (int) pxDimension;
    }

}