AVD Emulator stuck on loading screen in Android St

问题:

I decided to try Android Studio 2.0 having used Eclipse in the past but I'm having considerable difficulty getting the AVD to load correctly. I've done quite a bit of googling and research into the problem, both here on SO and Google.So far nothing has worked.

The emulator simply hangs on the android load-up screen ever time I try to run it. I've seen it advised to use Genymotion but I would first prefer to resolve the issue natively in Android Studio to feel confident going forward using the IDE for building projects.

Here's what I've tried:

• Complete reinstall of Android, SDK and SDK Tools

• Install and configure of Intel x86 accelerator

• Lowered the RAM amount to 512 in AVD settings

• Multiple attempts at deleting and recreating AVD's

• Tried creating different AVD phone models(Nexus One,Nexus 5x etc.)

• Resetting ADB in AVD Monitor Tool

• Starting ADB server from terminal

• Restarting Android Studio multiple times after changes

• Running SDK/SDK Tools updates several times

• Made sure the SDK path is correct

These are the majority of the "solutions" I found either on other similar SO questions or by googling none of which has resolved the problem.

When I run the emulator currently it displays the following in the run window:

/Users/<username>/Library/Android/sdk/tools/emulator -netdelay none -netspeed full -avd Nexus_5X_API_23
Warning: requested ram_size 1024M too big, reduced to 512M
emulator: WARNING: Increasing RAM size to 1024MB
emulator: WARNING: VM heap size set below hardware specified minimum of 228MB
emulator: WARNING: Setting VM heap size to 256MB
Hax is enabled
Hax ram_size 0x20000000
HAX is working and emulator runs in fast virt mode.
console on port 5554, ADB on port 5555 

The emulator shows up fine in the Android AVD Monitor devices pane and even appears to go through the entire booting process on the emulator screen itself but never gets to the Android home screen. Also, Logcat seems to be looping continuously through dozens of errors and warnings, which don't offer any clear indication of what the issue might be or direction of how to resolve it.

I feel like I've exhausted every idea and not sure how to move forward.Just for the record, I am running El Capitan 10.9.2 with a 2.4gh Intel Core 2 Duo and 4gb ram.It's not the fastest machine for sure but should be capable of running Android Studio and the emulator.

Any help or guidance resolving this problem is gratefully appreciated!

回答1:

For me this worked: in AVD(Tools->AVD) click on the small arrow for desired emulator then click on "Wipe data".

After that, it successfully started - passed the android logo screen - although a bit slowly.

回答2:

You should Increase your ADB emulator Heap to the minimum required.

in your case: 512M

into your AVD Manager:

- Click Edit on your Emulator
- "Show Advanced Settings" at the bottom
- Go to: "Memory and Storage"
- Edit the VM heap value to 512 MB
- Finished

Image:

Works for me.

回答3:

Unfortunately, increasing the heap size didn't help in my case. The virtual device was actually running fine before with the previous amount of heap.

What I eventually ended up doing was just creating a new virtual device through the AVD manager leaving most of the fields the default value. The new device ran fine and booted up as expected and was able to run my app. It's possible something in my first virtual device became corrupted.

回答4:

I had the same problem. I'm running El Capitan 10.11.5 with a 2.0GHz Intel Core 2 Duo and 8GB RAM, Android Studio 1.5.1.

After upgrading to Intel x86 Emulator Accelerator (HAXM Installer), rev 6.1.1 and deleting my API 14 SDK and related files, the newly installed API 23's Google APIs Intel x86 Atom System Image would not get past the Android logo screen.

After much trial & error, the Intel x86 Atom System Image (not Google APIs Intel x86 Atom System Image) for API 15 finally loaded the home screen on the emulator after ~ 8 min and one android system crash.

Will try the Intel x86 Atom System Image for API 23 later. Hope that helps.

回答5:

I had the same problem and none of the steps listed here helped me, either.

But since the solution that worked for me was not mentioned here yet, I thought it might help you or one of the others finding this thread:

What did work for me was disabling certain settings in my Avast Antivirus as proposed by the Android studio troubleshooting page here.

My version of Avast did not have the setting "Use nested virtualization when available", however just turning off "Enable Hardware assisted virtualization" (note: restart is required for it to take effect) solved the problem just fine.

So if you are using Avast or another Antivirus which manipulates virtualization, be sure to look through the correspondent settings.

回答6:

At one point my laptop hit a kernel panic and restarted while running an active AVD emulator session. When attempting to restart the emulator, the emulated device (Pixel 3) stayed stuck on the startup splash logo screen.

Fix steps:

1. Stop hung emulator session.

2. rm ~/.android/avd/name_of_emulated_device.avd/*.lock

3. rm ~/.android/avd/name_of_emulated_device.avd/*.qcow2

4. Restarting the emulated AVD should now be successful.

Windows equivalent for ~/.android should be C:\Users\.android, but I can't confirm this myself.

Note: You will likely lose any additionally installed apps and current work that was on the AVD.

回答7:

I also had the same problem with my AVD. After lots of trial and error I arrived at a solution for my problem. the problem was with the Heap size and the RAM size. Initially the default heap size was 128 MB and RAM was 1563 , I just changed the heap size to 512 MB and reduced the RAM size( high RAM was making my pc run slow) also I enabled hardware acceleration. And Yipeee, it worked.