Android Studio 没有检测到模拟器

Question

I am a newbie in Android Studio and I can't test my programs. Before using this I succesfully tested my android programs in eclipse.

After reading some questions in similar context I created a new emulator from

Tools-android-AVD Manager

But when I run the program it says No USB devices or running emulators detected(in select deployment target). How can I fix this

Answer 1

Try this in android studio menu

Tools --> Android --> Enable ADB Integration

if is is already Enabled try to disbale and reenable this works most of time for me.

Answer 2

Try enabling USB Debuuging in the Android emulator itself, like you would do it on a real device. Settings-> Developer options-> enable USB Debugging.

Answer 3

Trying to cold boot emulator as it has that option but the emulator is not responding to cold boot don't know why?

Answer 4

Try starting the emulator before opening Android Studio.

Answer 5

On Mac OS , I ran into this when JAVA_HOME was set incorrectly on a new machine I had just set up.

Resolved by:

1. Running java --version showed a pop-up that the JDK was not installed. I clicked the More Info button which took me to a download site.

2. Downloaded, and extracted to ~/tools/jdk-15.0.1.jdk

3. In .bash_profile set JAVA_HOME with full explicit path.

Answer 6

thanks for Yogesh Kuma

Sometimes wipe data helped.

if emulator launched you must close emulator,

open device manager -> open menu needed emulator -> wipe data-> you can launch emulator

Answer 7

You need to try to find a very small fragment (small Emu rectangle right in the center of the screen) (minimized emulator window) and enlarge it in all directions:)

Answer 8

Go to tools->android->AVD manager->then you can see the Android virtual devices .

If you dont have any devices,at the bottom shows create virtual device button then create new Virtual device,If you face issue i'll help you

Answer 9

The answers already provided are correct but since you are a newbie, I would also like to suggest that you don't use an emulator at all. Instead, use your real android device for debugging purposes. Emulators are laggy and slow. Just enable "USB Debugging" in your phone's settings and connect your phone to your PC using a USB cable. You'll then see your device in the list of available options during deployment.