title: Number and size of images in the drawable folder
body: <p>I'm writing a program about letters for babies and I'm using 28 images. It's a flashcard program, and was running ok until I reached 20 images.</p>
  
  <p>It force-closes before opening. I'm still in my early stage in the program. I put my images in the drawable-mdpi. After working on this error for 2 days, I discovered that when I split the images between drawable-mdpi and drawable-hdpi it works well, but the images that are in the hdpi folder are smaller, although they are of the same size.</p>
  
  <p>I want to know, why does it work when splitting the images? Is there a limit to the number of images per folder? And also, why do images that are in the hdpi folder get smaller in the app?</p>