Dialer: Ensure device ids not null

When entering sequence *#06#, if the device doesn't have any valid imei's
it will crash since the array adapter uses getItem() and toString().

Ensure not to show a dialog in that case.

Change-Id: Ie2d4066ff56e0e078f0d68b6c02b4af47c973f70
1 file changed
tree: 82efbc363952deedef157df76513f19fd76ea56b
  1. assets/
  2. res/
  3. src/
  4. tests/
  5. Android.mk
  6. AndroidManifest.xml
  7. proguard.flags