Ralph

 通过日志也能看出来我确实拿到了UsbDevice的deviceId并且设置到了构建CameraRequest中

 我也看了CameraUvcStrategy中的createCamera()函数，里面对于CameraRequest设置的cameraId进行了重新赋值，那么说明外面设置的cameradId应该是无效的

> 您的意思是您想启动测试应用程序而不是通过 Appium 启动测试应用程序过程吗？`adb shell is am instrument -w your.test.app/androidx.test.runner.AndroidJUnitRunner` Yes, I want to in my test App to start Appium. Achieve the “adb shell is am instrument -w your.test.app/androidx.test.runner.AndroidJUnitRunner”...

> I know you means, but my test app in mobile phone has not permission to exec shell commods. I should user Intent to start or startInstrumentation or others in...

I want implement the function is in my test app, to start the test AppiumUiAutomator2Server（In terminal is input adb shell is am instrument -w your.test.app/androidx.test.runner.AndroidJUnitRunner).

You cant imagine if I install the two appium test apk.But in normal I must input adb shell is am instrument -w your.test.app/androidx.test.runner.AndroidJUnitRunner in terminal.But I want my test app...

So if I want in my app to start AppiumUiAutomator2Server is no way?

Might you consider providing a way that the other app can start the server instead of input adb shell is am instrument -w io.appium.uiautomator2.server.test/androidx.test.runner.AndroidJUnitRunner ? It's can more convenient for...