title: Playing with numbers length
body: <p>In my recycerview's textview I have numbers like 2557.1564987892, 0.0015468648, 26.2648597816.
  so I want if there is 4 numbers before the dot display only 2 numbers after the dot.
  if there is 1 number before the dot display 5 numbers after the dot.
  if there is 2 numbers before the dot display 4 numbers after the dot. 
  which way they all have 6 total length.
  Thank you.</p>