title: Custom Launcher is not remaining as default launcher in Huawei device
body: <p>I have developed a custom launcher/homescreen and it has been working perfectly on all android version for nearly two years. So far this launcher has been used in various Samsung devices. </p>
  
  <p>Currently I am testing it in new huawei lua-u22 device. My launcher runs, can be set as default and shows up other apps on top of launcher too. But if I run another app (for example Gmail), screen lock(Swipe only) for 20-30 second, unlock device then press back button then instead of bringing it back to my launcher it goes back to default huawei homescreen. I checked by going to the settings-> home and there my launcher was still set as default. It only brings back my launcher home screen when I press home button again.</p>
  
  <p>Is this problem of huawei device that is always redrawing default huwaei home as homescreen? Is there anyway I can track default selected home change at any time?</p>