title: How the handset manufacturer set the DPI on android OS?
body: <p>If I am the handset manufacturer and I have the handset with 5.0 inch and 1920*1080 resolution , <strong>how I set the DPI ?</strong></p>
  
  <p>I can calculate the generalized density like this:</p>
  
  <p><strong>Actual_density</strong> = root(1920*1920+1080*1080)/5.0 = 440.5 dpi</p>
  
  <p>And then get the <strong>generalized density</strong> :xxhdpi</p>
  
  <p>Of course , I can get the constant value of the <strong>DENSITY_XXHIGH</strong> :480</p>
  
  <p>So , should I set the DPI to 480 dpi ? And how to set it ?</p>
  
  <p>Is it important to set the DPI ?</p>
  
  <p>Thanks .</p>