Android emulator hanging on startup?

Question

I've been modifying/editing parts of the Android platform, but have run into a problem when trying to test my edits. After making my changes to the platform source, I was able to successfully compile the source - thus creating system.img, ramdisk.img, and userdata.img.

When I go to test this in the emulator, the emulator just hangs on the "ANDROID_" screen, with the underscore blinking, but never seems to load. Any suggestions?

The command I used to run the emulator is as follows:

./emulator -system $HOME/android/platform/out/target/product/generic/system.img -ramdisk $HOME/android/platform/out/target/product/generic/ramdisk.img -data $HOME/android/platform/out/target/product/generic/userdata.img

Thanks,
Chris

Answer 1

I had a similar problem. The emulator was unresponsive and Android Studio was unable to deploy and run the application. My solution was the following: 1. Open the AVD manager 2. On right hand side menu of the virtual device issue the commands "Stop" and "Wipe data" 3. Then, do a cold boot of the virtual device and voila, it came back to life.

Answer 2

Try using adb logcat in the terminal to see what's happening with the emulator. When I did that I kept noticing

I/ServiceManager(  918): service 'media.audio_flinger' died
I/ServiceManager(  918): service 'media.player' died
I/ServiceManager(  918): service 'media.camera' died
I/ServiceManager(  918): service 'media.audio_policy' died

repeating every 10s or so. I tried enabling my cameras in the AVD and the emulator started working.

To enable the camera enter android avd in the terminal and set the front and back camera options.