title: How MPAndroidChart display all xaxis values
body: <p>I'm developing some chart features using MPAndroidChart library.</p>
  
  <p>Is there any way to display all the xaxis values I added?
  Seems that the library will auto calculate on xaxis, some of values will be hidden.
  ex. display date: 05-17  05-17  05-15 ....
  the same day 05-17 will not shown.</p>
  
  <p>thanks!</p>