<com.shouzhong.scanner.ScannerView
android:id="@+id/sv"
android:layout_width="match_parent"
android:layout_height="205dp"
android:background="@color/black" />
override fun initView(savedInstanceState: Bundle?) {
mViewBind.vm = mViewModel
mViewBind.click = ProxyClick()
initBar()
initScan()
initListener()
}
private fun initScan() {
// 车牌识别算法配置参数
val parameter = HyperLPRParameter()
.setDetLevel(HyperLPR3.DETECT_LEVEL_LOW)
.setMaxNum(1)
.setRecConfidenceThreshold(0.85f)
// 初始化(仅执行一次生效)
HyperLPR3.getInstance().init(this, parameter);
mViewBind.activityLpv.setInputListener(onInputListener)
mViewBind.activityLpv.setKeyboardContainerLayout(mViewBind.mainRlContainer)
mViewBind.activityLpv.showLastView()
// mViewBind.activityLpv.hideLastView()
mViewBind.activityLpv.onSetTextColor(R.color.colorAccent)
mViewBind.sv.setViewFinder(ViewFinder(this))
mViewBind.sv.setEnableLicensePlate(true)
mViewBind.sv.restartPreviewAfterDelay(1)
val nv21 = NV21(this)
mViewBind.sv.setScanner { data, width, height ->
val plates = HyperLPR3.getInstance().plateRecognition(nv21.nv21ToBitmap(data, width, height), TypeDefine.CAMERA_ROTATION_0, HyperLPR3.STREAM_BGRA)
if (plates.isNotEmpty()) {
return@setScanner Result().also {
it.data = plates[0].code
it.type = Result.TYPE_LICENSE_PLATE
}
} else {
return@setScanner null
}
}
//mViewBind.sv.onResume()
mViewBind.sv.setCallback {
if (it.data.isNotEmpty()) {
mViewBind.activityLpv.setDefaultStr(it.data)
mViewModel.carNo.value = it.data
// mViewModel.getCardInfo(it.data)
}
mViewBind.sv.restartPreviewAfterDelay(200)
}
}
override fun onPause() {
super.onPause()
mViewBind.sv.onPause()
// mViewModel.showScanView.value = false
}
override fun onResume() {
super.onResume()
initBar()
mViewBind.sv.onResume()
// mViewModel.showScanView.value = true
}
2023-09-05 16:26:38.635 27784-27784 CameraBase cn.uexpo E [getNumberOfCameras] scan getNumberOfCameras reading number of cameras count: 2
2023-09-05 16:26:39.298 27784-27987 HyperLPR3-Native cn.uexpo D cost: 0.160804
2023-09-05 16:26:39.738 27784-27800 Camera cn.uexpo I Camera >>>>>>>>> release
2023-09-05 16:26:39.742 27784-27800 ScanCameraSwitchUtils cn.uexpo I open scan Camera_Scan end release 1
2023-09-05 16:26:39.844 27784-27987 HyperLPR3-Native cn.uexpo D cost: 0.160254
2023-09-05 16:26:39.888 27784-27784 JetpackMvvm cn.uexpo D onActivityPaused : ui.activity.MainActivity
2023-09-05 16:26:39.889 27784-27784 CrashReport cn.uexpo D >>> cn.uexpo.ui.activity.MainActivity onPaused <<<
2023-09-05 16:26:39.891 27784-27784 CrashReport-Native cn.uexpo I Set native info: isAppForeground(false)
2023-09-05 16:26:40.065 27784-27784 Camera cn.uexpo I Camera >>>>>>>>> release
2023-09-05 16:26:40.065 27784-27784 ScanCameraSwitchUtils cn.uexpo I closeCameraAndOpenScanner Exception scan Service:android.os.IScanService$Stub$Proxy@89b5833,State:false
2023-09-05 16:26:40.251 27784-27784 JetpackMvvm cn.uexpo D onActivityStopped : ui.activity.MainActivity
2023-09-05 16:26:40.254 27784-27784 LeakCanary cn.uexpo D Ignoring request to check for retained objects (app became invisible), already scheduled in 1937ms
2023-09-05 16:26:40.261 27784-27784 PhoneWindow cn.uexpo V DecorView setVisiblity: visibility = 4, Parent = android.view.ViewRootImpl@37ce4e2, this = DecorView@c7bddd7[MainActivity]
2023-09-05 16:26:40.701 27784-27816 LeakCanary cn.uexpo D Setting up flushing for Thread[InsetsAnimations,5,main]
2023-09-05 16:26:41.044 27784-27784 JetpackMvvm cn.uexpo D onActivityStarted : ui.activity.MainActivity
2023-09-05 16:26:41.046 27784-27784 AndroidAutoSize cn.uexpo D cn.uexpo.ui.activity.MainActivity used the global configuration.
2023-09-05 16:26:41.049 27784-27784 AndroidAutoSize cn.uexpo D The cn.uexpo.ui.activity.MainActivity has been adapted!
MainActivity Info: isBaseOnWidth = true, designWidthInDp = 375.000000, designWidthInSubunits = 375.000000, targetDensity = 1.920000, targetScaledDensity = 1.920000, targetDensityDpi = 307, targetXdpi
= 1.920000, targetScreenWidthDp = 375, targetScreenHeightDp = 641
2023-09-05 16:26:41.053 27784-27784 PhoneWindow cn.uexpo V DecorView setVisiblity: visibility = 0, Parent = android.view.ViewRootImpl@37ce4e2, this = DecorView@c7bddd7[MainActivity]
2023-09-05 16:26:41.054 27784-27784 JetpackMvvm cn.uexpo D onActivityResumed : ui.activity.MainActivity
2023-09-05 16:26:41.055 27784-27784 CrashReport cn.uexpo D >>> cn.uexpo.ui.activity.MainActivity onResumed <<<
2023-09-05 16:26:41.057 27784-27784 CrashReport-Native cn.uexpo I Set native info: isAppForeground(true)
2023-09-05 16:26:41.068 27784-28101 Camera cn.uexpo I Camera cameraInitVersion packageList:
2023-09-05 16:26:41.070 27784-27784 PhoneWindow cn.uexpo V DecorView setVisiblity: visibility = 0, Parent = android.view.ViewRootImpl@37ce4e2, this = DecorView@c7bddd7[MainActivity]
2023-09-05 16:26:41.221 27784-28101 ScanCameraSwitchUtils cn.uexpo I close scan Camera_Scan start cameraInitVersion ret:1
2023-09-05 16:26:41.336 27784-27784 CameraBase cn.uexpo E [getNumberOfCameras] scan getNumberOfCameras reading number of cameras count: 2
2023-09-05 16:26:41.386 511-511 Layer surfaceflinger E [SurfaceView - cn.uexpo/cn.uexpo.ui.activity.MainActivity#0] No local sync point found
2023-09-05 16:26:42.005 27784-28101 HyperLPR3-Native cn.uexpo D cost: 0.159145
2023-09-05 16:26:42.192 27784-27815 LeakCanary cn.uexpo D Check for retained object found no objects remaining
2023-09-05 16:26:42.447 27784-27800 Camera cn.uexpo I Camera >>>>>>>>> release
2023-09-05 16:26:42.452 27784-27800 ScanCameraSwitchUtils cn.uexpo I open scan Camera_Scan end release 1
2023-09-05 16:26:42.554 27784-28101 HyperLPR3-Native cn.uexpo D cost: 0.158630
2023-09-05 16:26:42.850 27784-28101 HyperLPR3-Native cn.uexpo D cost: 0.155176
2023-09-05 16:26:43.005 27784-27784 JetpackMvvm cn.uexpo D onActivityPaused : ui.activity.MainActivity
2023-09-05 16:26:43.006 27784-27784 CrashReport cn.uexpo D >>> cn.uexpo.ui.activity.MainActivity onPaused <<<
2023-09-05 16:26:43.008 27784-27784 CrashReport-Native cn.uexpo I Set native info: isAppForeground(false)
2023-09-05 16:26:43.155 27784-28101 HyperLPR3-Native cn.uexpo D cost: 0.158124
2023-09-05 16:26:43.227 27784-27784 Camera cn.uexpo I Camera >>>>>>>>> release
2023-09-05 16:26:43.227 27784-27784 ScanCameraSwitchUtils cn.uexpo I closeCameraAndOpenScanner Exception scan Service:android.os.IScanService$Stub$Proxy@89b5833,State:false
2023-09-05 16:26:43.228 27784-28101 libc cn.uexpo A Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 28101 (CameraHandlerTh), pid 27784 (cn.uexpo)
2023-09-05 16:26:43.411 28210-28210 DEBUG crash_dump64 A pid: 27784, tid: 28101, name: CameraHandlerTh >>> cn.uexpo <<<
2023-09-05 16:26:43.418 27784-27784 JetpackMvvm cn.uexpo D onActivityStopped : ui.activity.MainActivity
2023-09-05 16:26:43.420 27784-27784 LeakCanary cn.uexpo D Scheduling check for retained objects in 5000ms because app became invisible
2023-09-05 16:26:43.427 27784-27784 PhoneWindow cn.uexpo V DecorView setVisiblity: visibility = 4, Parent = android.view.ViewRootImpl@37ce4e2, this = DecorView@c7bddd7[MainActivity]
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #00 pc 00000000000ffa04 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #01 pc 00000000001007b0 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #02 pc 00000000003ab260 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #03 pc 00000000003ab7ac /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #04 pc 000000000067acb8 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(tbb::internal::custom_scheduler<tbb::internal::IntelSchedulerTraits>::local_wait_for_all(tbb::task&, tbb::task*)+848) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #05 pc 0000000000679978 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(tbb::internal::generic_scheduler::local_spawn_root_and_wait(tbb::task*, tbb::task*&)+180) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #06 pc 00000000003abae0 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #07 pc 00000000003abb70 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #08 pc 0000000000672248 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(tbb::interface7::internal::task_arena_base::internal_execute(tbb::interface7::internal::delegate_base&) const+420) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #09 pc 00000000003abdc8 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (cv::parallel_for_(cv::Range const&, cv::ParallelLoopBody
const&, double)+552) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #10 pc 0000000000102f54 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.706 28210-28210 DEBUG crash_dump64 A #11 pc 000000000010c1cc /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #12 pc 00000000000f8ecc /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #13 pc 000000000010cb50 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so (cv::CascadeClassifier::detectMultiScale(cv::_InputArray
const&, std::vector<cv::Rect_<int>, std::allocator<cv::Rect_<int> > >&, double, int, int, cv::Size_<int>, cv::Size_<int>)+176) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #14 pc 00000000000f0164 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(pr::PlateDetection::plateDetectionRough(cv::Mat, std::vector<pr::PlateInfo, std::allocator<pr::PlateInfo> >&, int, int)+268) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #15 pc 00000000000ebe38 /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(pr::PipelinePR::RunPiplineAsImage(cv::Mat, int)+252) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #16 pc 00000000000e4b9c /data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/lib/arm64/libLicensePlate.so
(Java_com_shouzhong_licenseplate_PlateRecognition_recognize+392) (BuildId: 05857e9e5b0e8af297fdc74277cf733086bfa87e)
2023-09-05 16:26:43.707 28210-28210 DEBUG crash_dump64 A #24 pc 000000000042fce0 [anon:dalvik-classes.dex extracted in memory from
/data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/base.apk] (com.shouzhong.licenseplate.LicensePlateUtils.recognize)
2023-09-05 16:26:43.708 28210-28210 DEBUG crash_dump64 A #30 pc 0000000000431ebc [anon:dalvik-classes.dex extracted in memory from
/data/app/~~rFL2u3WIWPjY7E1aJ8hlUA==/cn.uexpo-xB7DjqyolZEYB08lA1idEA==/base.apk] (com.shouzhong.scanner.ScannerView.onPreviewFrame)
2023-09-05 16:26:43.741 27784-27816 LeakCanary cn.uexpo D Setting up flushing for Thread[CameraHandlerThread,5,main]
2023-09-05 16:26:43.743 27784-27816 MessageQueue cn.uexpo W Handler (android.os.Handler) {7d0054e} sending message to a Handler on a dead thread
java.lang.IllegalStateException: Handler (android.os.Handler) {7d0054e} sending message to a Handler on a dead thread
at android.os.MessageQueue.enqueueMessage(MessageQueue.java:560)
at android.os.Handler.enqueueMessage(Handler.java:778)
at android.os.Handler.sendMessageAtTime(Handler.java:727)
at android.os.Handler.sendMessageDelayed(Handler.java:697)
at android.os.Handler.post(Handler.java:427)
at leakcanary.AndroidLeakFixes$Companion.onEachIdle(AndroidLeakFixes.kt:412)
at leakcanary.AndroidLeakFixes$Companion.access$onEachIdle(AndroidLeakFixes.kt:381)
at leakcanary.AndroidLeakFixes$FLUSH_HANDLER_THREADS$apply$1.run(AndroidLeakFixes.kt:158)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:462)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:307)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:302)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
at leakcanary.AndroidLeakFixes$Companion$backgroundExecutor$1$thread$1.run(AndroidLeakFixes.kt:400)
感谢作者提供的扫描库，我在使用时发现频繁的操作前后台切换，调用
Scanner库的onPause与onResume时会发生so层的异常，app层无法捕获导致直接闪退，非必现。可能复现的流程如下：部分代码
错误日志