Develop Reference

ANDROID App crash when installed in device: JSException: Can't find variable: Promise (RN 0.57.1)

Android app installs but crashes on open in devices, but in debug mode works perfectly.
You can see the crash report below
2019-03-15 15:02:50.685 4431-4515/? E/WindowManager: win=Window{8cd349a u0 Splash Screen com.sample EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true win.mViewVisibility=0, caller=com.android.server.wm.AppWindowToken.destroySurfaces:748 com.android.server.wm.AppWindowToken.destroySurfaces:732 com.android.server.wm.WindowState.onExitAnimationDone:5646 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:553 com.android.server.wm.DisplayContent.lambda$-com_android_server_wm_DisplayContent_21578:476
2019-03-15 15:02:51.555 970-1030/? E/AndroidRuntime: FATAL EXCEPTION: mqt_native_modules
Process: com.sample, PID: 970
com.facebook.react.common.JavascriptException: Can't find variable: props, stack:
value#285:1369
at com.facebook.react.modules.core.ExceptionsManagerModule.showOrThrowError(ExceptionsManagerModule.java:54)
at com.facebook.react.modules.core.ExceptionsManagerModule.reportFatalException(ExceptionsManagerModule.java:38)
at java.lang.reflect.Method.invoke(Native Method)
at com.facebook.react.bridge.JavaMethodWrapper.invoke(JavaMethodWrapper.java:372)
at com.facebook.react.bridge.JavaModuleWrapper.invoke(JavaModuleWrapper.java:160)
at com.facebook.react.bridge.queue.NativeRunnable.run(Native Method)
at android.os.Handler.handleCallback(Handler.java:790)
at android.os.Handler.dispatchMessage(Handler.java:99)
at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:29)
at android.os.Looper.loop(Looper.java:164)
at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:192)
at java.lang.Thread.run(Thread.java:764)
2019-03-15 15:02:51.989 4431-4515/? E/WindowManager: win=Window{bb689b5 u0 com.sample/com.sample.MainActivity EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=false win.mRemoveOnExit=false win.mViewVisibility=8, caller=com.android.server.wm.AppWindowToken.destroySurfaces:748 com.android.server.wm.AppWindowToken.destroySurfaces:732 com.android.server.wm.WindowState.onExitAnimationDone:5646 com.android.server.wm.WindowStateAnimator.stepAnimationLocked:553 com.android.server.wm.DisplayContent.lambda$-com_android_server_wm_DisplayContent_21578:476

Try to follow this issue: https://github.com/facebook/metro/issues/197:
When using react-native bundle (the command that runs when you build a
release), InitializeCore.js is not the first file that get required,
but instead it is required later, sometime during the generation of
the bridge method, randomly (which is why if you are lucky or not
using Promise // setTimeout early you'll be fine) iOS does not need
all those polyfills which is why the issue is only detected on android
in release mode.

GasService in android logcat

I've got a few errors in my logcat that keep on repeating every second or so, but I don't understand where they come from ?
1539 1547 E GED : Failed to execute ioctl 3222824709, BridgeID(5), err(-1)
1539 1547 E GasService: Error on query GED info, err=1
1539 1547 E GED : Failed to execute ioctl 3222824709, BridgeID(5), err(-1)
1539 1547 E GasService: Error on query GED info, err=1
1060 1161 E ApplockRunningService.TAG: AppLockService------------->tasks = [android.app.ActivityManager$RunningTaskInfo#40598b4]
1060 1161 E ApplockRunningService.TAG: AppLockService------------->packname = com.android.launcher3
1060 1161 E ApplockRunningService.TAG: getLockFlag------------> c = android.content.ContentResolver$CursorWrapperInner#a210cdd
When listing the android services, there is no such "GasService";
there is also no "Gas" process listed with "ps".
Additional info: the process 1539 is launched by /vendor/bin/ged_srv
which is a binary file that is not visible except by root :-/
So, where do these errors come from ?
Thank you !

GasService see => GpuAppSpectatorService
native:
/system/bin/gas_srv
/system/lib/libgas.so
pkg:
com.mediatek.GpuAppSpectatorService
init:
on property:sys.boot_completed=1
start gas_srv
service gas_srv /system/bin/gas_srv
class core
user system
group system
disabled
se policy:
/system/bin/gas_srv u:object_r:gas_srv_exec:s0

Android O HIDL not available

I have problem with Android O HIDL. The failure log shows it can't find out the service.
However I can see it by adb shell ps -A | grep fingerprint
system 18758 1 17408 3276 pipe_wait 7c79e93e08 R android.hardware.biometrics.fingerprint#2.1-service`
Could anyone give me a hint how to solve the problem? I checked https://source.android.com/devices/architecture/hidl/ but could not get the solution.
Error log:
08-21 06:00:35.864 1890 2264 V FingerprintService: mDeamon was null, reconnect to fingerprint
08-21 06:00:35.864 1890 2264 I system_server: Looking for service android.hardware.biometrics.fingerprint#2.1::IBiometricsFingerprint/default
08-21 06:00:35.864 2240 2240 D wpa_supplicant: nl80211: Set mode ifindex 24 iftype 2 (STATION)
08-21 06:00:35.866 566 566 W /system/bin/hwservicemanager: getTransportFromManifest: Cannot find entry android.hardware.biometrics.fingerprint#2.1::IBiometricsFingerprint in either framework or device manifest, using default transport.
08-21 06:00:35.866 1890 2264 E system_server: service android.hardware.biometrics.fingerprint#2.1::IBiometricsFingerprint declares transport method EMPTY but framework expects hwbinder.
08-21 06:00:35.867 1890 2264 E FingerprintService: Failed to get biometric interface
08-21 06:00:35.867 1890 2264 E FingerprintService: android.os.RemoteException: HwBinder Error: (-2147483648)
08-21 06:00:35.867 1890 2264 E FingerprintService: at android.os.HwBinder.getService(Native Method)
08-21 06:00:35.867 1890 2264 E FingerprintService: at android.hardware.biometrics.fingerprint.V2_1.IBiometricsFingerprint.getService(IBiometricsFingerprint.java:44)
08-21 06:00:35.867 1890 2264 E FingerprintService: at com.android.server.fingerprint.FingerprintService.getFingerprintDaemon(FingerprintService.java:239)
08-21 06:00:35.867 1890 2264 E FingerprintService: at com.android.server.fingerprint.FingerprintService$FingerprintServiceWrapper.isHardwareDetected(FingerprintService.java:1198)
08-21 06:00:35.867 1890 2264 E FingerprintService: at android.hardware.fingerprint.IFingerprintService$Stub.onTransact(IFingerprintService.java:156)
08-21 06:00:35.867 1890 2264 E FingerprintService: at android.os.Binder.execTransact(Binder.java:674)
08-21 06:00:35.867 1890 2264 W FingerprintService: fingerprint HIDL not available

I've succeeded in running my fingerprint HAL on Android 8.1 executing on HiKey
96 board after modified files as below.
Firstly, it's necessary that adding HIDL configures to declare a device as a vendor or you would get VTS failed.
About HIDL configures
device/linaro/hikey/manifest.xml
+<hal format="hidl">
<name>android.hardware.biometrics.fingerprint</name>
<transport>hwbinder</transport>
<version>2.1</version>
<interface>
<name>IBiometricsFingerprint</name>
<instance>default</instance>
</interface>
</hal>
Secondly, finger service will be started after you define it in the file below.
device/linaro/hikey/device-common.mk
+#init finger service and copy
android.hardware.biometrics.fingerprint#2.1-service.rc to
system/vendor/etc/init
+PRODUCT_PACKAGES += \
+android.hardware.biometrics.fingerprint#2.1-service
+# copy permission file of finger service
+PRODUCT_COPY_FILES += \
+frameworks/native/data/etc/android.hardware.fingerprint.xml:system/etc
/permissions/android.hardware.fingerprint.xml
Finally, check finger service has been started and running in Android system by using terminal commands such as "adb shell" and "ps | grep finger".
Any suggestion is welcome.

I found out that I need to add the code to the manifest.xml
(Ref. https://source.android.com/devices/architecture/vintf/objects )
<hal format="hidl">
<name>android.hardware.biometrics.fingerprint</name>
<transport>hwbinder</transport>
<impl level="generic"></impl>
<version>2.1</version>
<interface>
<name>IBiometricsFingerprint</name>
<instance>default</instance>
</interface>
</hal>

Illegal Exception on MediaCodec.configure

I am trying to learn to encode a mp4 or any sort of video file using the Camera's onPreviewFrame call back.
Currently, I am trying the example codes from this post
Encoding H.264 from camera with Android MediaCodec
Unfortunately, I am keep getting an IllegalException on the
mediaCodec.configure(mediaFormat, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
From another post
IllegalStateException when MediaCodec.configure Android,
I notice that are some mandatory values I have to set for the MediaCodec.
I tried all the mandatory mediacodec's mandatory values but still no luck of getting past
the IllegalException.
Now I am kinda of running out of ideas to try. Any suggestions, opinions or hints would be greatly appreciated.
thanks
11-04 12:27:14.785 175-894/? E/mm-libcamera2﹕ PROFILE HAL: stopPreview(): E: 1383596834.803557773
11-04 12:27:14.795 175-175/? E/OMXNodeInstance﹕ !!! Observer died. Quickly, do something, ... anything...
11-04 12:27:14.795 208-5797/? E/mm-camera﹕ config_shutdown_pp Camera not in streaming mode. Returning.
11-04 12:27:14.795 208-5797/? E/mm-camera﹕ vfe_ops_deinit: E
11-04 12:27:14.825 175-5814/? E/OMX-VENC-720p﹕ ioctl VEN_IOCTL_CMD_READ_NEXT_MSG failed
11-04 12:27:14.825 175-175/? E/OMX-VENC-720p﹕ Destroy C2D instance
11-04 12:27:14.835 527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11
11-04 12:28:17.642 6241-6247/? E/jdwp﹕ Failed sending reply to debugger: Broken pipe
11-04 12:28:17.912 527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11
11-04 12:28:17.922 208-6264/? E/mm-camera﹕ sensor_load_chromatix: libchromatix_imx111_preview.so: 30
11-04 12:28:18.032 208-6264/? E/mm-camera﹕ vfe_ops_init: E
11-04 12:28:18.042 208-6264/? E/mm-camera﹕ vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
11-04 12:28:18.052 208-6264/? E/mm-camera﹕ vfe_legacy_stats_buffer_init: AEC_STATS_BUFNUM
11-04 12:28:18.052 208-6264/? E/mm-camera﹕ mctl_init_stats_proc_info: snap_max_line_cnt =30096
11-04 12:28:18.213 6241-6241/? E/CamcorderProfile﹕ width: 720
11-04 12:28:18.213 6241-6241/? E/CamcorderProfile﹕ height: 480
11-04 12:28:18.213 6241-6241/? E/CamcorderProfile﹕ audioSampleRate: 48000
11-04 12:28:18.213 6241-6241/? E/CamcorderProfile﹕ videoBitRate: 5000000
11-04 12:28:18.213 6241-6241/? E/CamcorderProfile﹕ videoFrameRate: 30
11-04 12:28:18.233 175-617/? E/OMX-VENC-720p﹕ Is component secure 0
11-04 12:28:18.263 6241-6280/? E/ACodec﹕ [OMX.qcom.video.encoder.avc] does not support color format 19
11-04 12:28:18.263 6241-6280/? E/ACodec﹕ [OMX.qcom.video.encoder.avc] configureCodec returning error -2147483648
11-04 12:28:18.263 6241-6279/? E/MediaCodec﹕ Codec reported an error. (omx error 0x80001001, internalError -2147483648)
11-04 12:28:18.263 6241-6241/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException
at android.media.MediaCodec.native_configure(Native Method)
at android.media.MediaCodec.configure(MediaCodec.java:259)
at com.example.mediacodec.AvcEncoder.<init>(AvcEncoder.java:40)
at com.example.mediacodec.Preview.surfaceCreated(MediaCodecActivity.java:304)
at android.view.SurfaceView.updateWindow(SurfaceView.java:571)
at android.view.SurfaceView.access$000(SurfaceView.java:86)
at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:175)
at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:833)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1860)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
at android.view.Choreographer.doCallbacks(Choreographer.java:562)
at android.view.Choreographer.doFrame(Choreographer.java:532)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
at android.os.Handler.handleCallback(Handler.java:730)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:5103)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
at dalvik.system.NativeStart.main(Native Method)
11-04 12:28:20.135 175-617/? E/mm-libcamera2﹕ PROFILE HAL: stopPreview(): E: 1383596900.149872429
11-04 12:28:20.135 175-575/? E/OMXNodeInstance﹕ !!! Observer died. Quickly, do something, ... anything...
11-04 12:28:20.135 208-6264/? E/mm-camera﹕ config_shutdown_pp Camera not in streaming mode. Returning.
11-04 12:28:20.145 208-6264/? E/mm-camera﹕ vfe_ops_deinit: E
11-04 12:28:20.165 175-6283/? E/OMX-VENC-720p﹕ ioctl VEN_IOCTL_CMD_READ_NEXT_MSG failed
11-04 12:28:20.165 175-575/? E/OMX-VENC-720p﹕ Destroy C2D instance
11-04 12:28:20.195 527-539/? E/qcom_sensors_hal﹕ hal_process_report_ind: Bad item quality: 11

E/ACodec﹕ [OMX.qcom.video.encoder.avc] does not support color format 19
Looks like you're trying to use color format 19 (COLOR_FormatYUV420Planar, a/k/a I420) on a Qualcomm device. A quick test on one of my devices indicates their codecs want color format 21 (COLOR_FormatYUV420SemiPlanar, a/k/a NV12).
The buffer-to-buffer tests in the EncodeDecodeTest sources show how to query the MediaCodecInfo for an appropriate color format. Since you are receiving input from the Camera, you will want to set the preview format to a semi-planar layout (NV21), and then do the U/V swap before handing it to the MediaCodec.
If you have Android 4.3 or later, you can skip all of the format gymnastics and use the Surface preview output. See the CameraToMpegTest sources for an example.

Monodroid - GC.Collect fails without any reason

I have an application with 4 tabs (TabActivity). By some reasons I call GC.Collect every time user switches tab (overriding OnPause Activity's method). Sometimes (approximately 1 time from 50-100 calls, but sometimes this happens when application just started) my application hangs in this moment.
Here is part of my code:
protected override void OnPause(){
base.OnPause();
try{
Android.Util.Log.Info("----","GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);");
GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
Android.Util.Log.Info("----","GC.Collect Finished");
}catch(Exception exc){
Android.Util.Log.Info("exc.Message",exc.Message);
Android.Util.Log.Info("exc.StackTrace",exc.StackTrace);
throw exc;
}
}
And here is corresponding Android log output
//Previous GC.Collect call, it's all ok
I/---- ( 7796): GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
D/dalvikvm( 7796): GetMethodID: method not found: Landroid/widget/EditText;.monodroidAddReference:(Ljava/lang/Object;)V
D/dalvikvm( 7796): GC_EXPLICIT freed 962 objects / 42472 bytes in 112ms
I/---- ( 7796): GC.Collect Finished
//On another call fails
I/---- ( 7796): GC.Collect(GC.MaxGeneration, GCCollectionMode.Forced);
I/mono ( 7796): Stacktrace:
I/mono ( 7796):
I/mono ( 7796): at System.GC.Collect (int) <0x0001f>
I/mono ( 7796): at System.GC.Collect (int,System.GCCollectionMode) <0x00017>
I/mono ( 7796): at PixelsAndroid.CustomActivity.OnPause () <0x00067>
I/mono ( 7796): at Android.App.Activity.n_OnPause (intptr,intptr) <0x00037>
I/mono ( 7796): at (wrapper dynamic-method) object.908cefd4-40eb-4dd1-97cd-f731b2ada74a (intptr,intptr) <0x0002b>
I/mono ( 7796): at (wrapper native-to-managed) object.908cefd4-40eb-4dd1-97cd-f731b2ada74a (intptr,intptr) <0xffffffff>
No any exception to been thrown, no any visible reason to fail. Application just hangs, after few seconds I get Android OS alert: "Oppps, your application got stuck. Force close or wait?"
Anybody faced with it?

There was a bug in some old versions of monodroid: if you call GC.Collect and an http request in a parallel threads, this caused crash. Update to a latest version of monodroid.

Having to do a GC.Collect() under any circumstance is a bad code smell. Figure out the underlying reason and perform corrective rearchitecture.