Fatal Exception: java.lang.IllegalStateException Camera not initialized.

品牌：samsung
型号：Galaxy J2
android 5.1.1

Fatal Exception: java.lang.IllegalStateException: Camera not initialized.
at androidx.core.util.Preconditions.checkState(Preconditions.java:151)
at androidx.camera.view.CameraController.takePicture(CameraController.java:503)
at com.luck.picture.lib.camera.CustomCameraView$2.takePictures(CustomCameraView.java:153)
at com.luck.picture.lib.camera.view.CaptureLayout$2.takePictures(CaptureLayout.java:152)
at com.luck.picture.lib.camera.view.CaptureButton$1.onAnimationStart(CaptureButton.java:244)
at android.animation.ValueAnimator.notifyStartListeners(ValueAnimator.java:981)
at android.animation.ValueAnimator.start(ValueAnimator.java:1043)
at android.animation.ValueAnimator.start(ValueAnimator.java:1050)
at com.luck.picture.lib.camera.view.CaptureButton.startCaptureAnimation(CaptureButton.java:251)
at com.luck.picture.lib.camera.view.CaptureButton.handlerPressByState(CaptureButton.java:179)
at com.luck.picture.lib.camera.view.CaptureButton.onTouchEvent(CaptureButton.java:163)
at android.view.View.dispatchTouchEvent(View.java:8838)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2581)
at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2254)
at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2610)
at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1779)
at android.app.Activity.dispatchTouchEvent(Activity.java:2853)
at androidx.appcompat.view.WindowCallbackWrapper.dispatchTouchEvent(WindowCallbackWrapper.java:69)
at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2571)
at android.view.View.dispatchPointerEvent(View.java:9033)
at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4231)
at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4094)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3649)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3702)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3668)
at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:3785)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3676)
at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:3842)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3649)
at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:3702)
at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:3668)
at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:3676)
at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:3649)
at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:5932)
at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:5906)
at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:5877)
at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6022)
at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
at android.os.MessageQueue.nativePollOnce(MessageQueue.java)
at android.os.MessageQueue.next(MessageQueue.java:143)
at android.os.Looper.loop(Looper.java:122)
at android.app.ActivityThread.main(ActivityThread.java:5912)
at java.lang.reflect.Method.invoke(Method.java)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1405)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1200)

Start with com.luck.picture.lib.camera.CustomCameraView$2.takePictures and the call into androidx.camera.view.CameraController.takePicture shown in the stack trace. Reproduce the capture flow on the reported Galaxy J2 and Android 5.1.1 if possible; done means taking a picture no longer throws when the camera has not initialized.

Written by the indexing model from the issue text.