Develop Reference

btsnooz.py not parsing android BT log

I'm trying to follow the instructions found here:
https://inneka.com/programming/android/bluetooth-hci-snoop-log-not-generated/
and here:
https://source.android.com/devices/bluetooth/verifying_debugging#debugging-with-bug-reports
I am able to get the log, run the python code to parse it and and it runs successfully (on my Mac) however when I open the file it looks like a bunch of gibberish. Which I'll paste below. Is there a special log viewer I need to open this up with? I might be doing something dumb, anyone run into this? Thanks!
‚xcƒc7f3‚xcƒc8]‚xcƒc< Ö  C‚xcƒc<˘ 
‚xcƒc#l
˘¸Ù∂§‚xcƒcAæGG‚xcƒcFDˇˇˇÃˇÔˇˇˇ¸Ú˲?˜èˇa˜ˇˇ¯ˇˇˇˇˇˇ¿‚xcƒcFÈ‚xcƒcJ∫ø˛œ˛€ˇ{á‚xcƒcKëV‚xcƒc‚SV‚xcƒc‰®m‚xcƒcÈ!m‚xcƒcÍL‚xcƒcÓn‚xcƒcÔç‚xcƒcÛè3‚xcƒcÙnz‚xcƒc˘>z‚xcƒc˙p ‚xcƒc˛Y Ä‚xcƒcˇY
‚xcƒdÍ ˚‚xcƒd‹ ‚xcƒd‡ ˇˇˇˇˇ‚xcƒd ‚ ‚xcƒd
* Ô‚xcƒd
* ‚xcƒd©* Ä‚xcƒdu/ ‚xcƒdÕ/ ˚H˚H‚xcƒd®# ‚xcƒd¡# H‚xcƒdÇ ‚xcƒd£ ‚xcƒdfˇˇˇˇˇˇø=‚xcƒd!â‚xcƒd"S‚xcƒd%ù‚xcƒd)À) ‚xcƒd.) ‚xcƒd.î. Ñ‚xcƒd2k. ‚xcƒd3.E‚xcƒd=èE‚xcƒd=ˆG‚xcƒdBøG‚xcƒdC-C‚xcƒdGC‚xcƒdGp$```

The comment at the top of the btsnooz.py script explains how to open the generated file:
This script extracts btsnooz content from bugreports and generates a
valid btsnoop log file which can be viewed using standard tools like
Wireshark.
Wireshark can be obtained from here.

Xml and Java coding not Build Properly

Yesterday, I downloaded a Project which was in eclipse and i imported it in my android studio may be due to this or some other reason today when i opened my android studio recent projects it was showing error in gradle file with some other language i searched for the error which was "File was Loaded in Wrong Encoding UTF-8 " and got a method to change from file
Please help me out what should i do i tried searching every where but could not get a fine result which worked for me.
Here is my sample code of .xml file which is don't know in which format and why
���� 3
0abc_background_cache_hint_selector_material_dark I
ConstantValue 1abc_background_cache_hint_selector_material_light (abc_btn_colored_borderless_text_material abc_btn_colored_text_material abc_color_highlight_material !abc_hint_foreground_material_dark "abc_hint_foreground_material_light !abc_input_method_navigation_guard +abc_primary_text_disable_only_material_dark ,abc_primary_text_disable_only_material_light abc_primary_text_material_dark
abc_primary_text_material_light abc_search_url_text abc_search_url_text_normal
abc_search_url_text_pressed abc_search_url_text_selected abc_secondary_text_material_dark !abc_secondary_text_material_light abc_tint_btn_checkable abc_tint_default abc_tint_edittext abc_tint_seek_thumb abc_tint_spinner abc_tint_switch_track accent_material_dark accent_material_light !background_floating_material_dark "background_floating_material_light background_material_dark background_material_light (bright_foreground_disabled_material_dark )bright_foreground_disabled_material_light 'bright_foreground_inverse_material_dark (bright_foreground_inverse_material_light ! bright_foreground_material_dark " bright_foreground_material_light # button_material_dark $ button_material_light % cardview_dark_background & cardview_light_background ' cardview_shadow_end_color ( cardview_shadow_start_color ) colorAccent * colorPrimary + colorPrimaryDark , %design_bottom_navigation_shadow_color - design_default_color_primary . !design_default_color_primary_dark / design_error 0 design_fab_shadow_end_color 1 design_fab_shadow_mid_color 2 design_fab_shadow_start_color 3 !design_fab_stroke_end_inner_color 4 !design_fab_stroke_end_outer_color 5 !design_fab_stroke_top_inner_color 6 !design_fab_stroke_top_outer_color 7
It was a Fine Working Projects and every thing was working but dnt know what happned tried to reset that was also not working

Searched Alot Tried to make Sdk Locations Update Updated Gradle due to which all my class files were back to normal form but this Xml File was Not re-formatted So At last i created a new Xml File.
But After Some search i come to a result that it might me due to Unwanted Closer of my Android Studio Or may be my battery drained due to which my Android Studio doesn't Closed Properly.
If Any One Know After Every update i can do one more thing so that i can re-arranged my xml file to original format I will Update My Answer if that Worked For me
Thank You.

How to take off a PX4 autopilot using mavlink message?

I follow the following link's sample code
http://android.dronekit.io/first_app.html
and when I set API VehicleApi.getApi(this.drone).arm(true);
vehicleState.isFlying() automatically becomes true.
Can anybody tell me what this problem is?
What I need is:
1. take off, land
I read from some website that the dronekit-android does not support the mode changing. If so, how should I send the mavlink message to take off and land?
So far, I can sucessfully send the mavlink message to the PX4 board.
Thanks for replying.
Thank you for replying.
BR
SeanH

If you trace though some of the code in dronekit-android, you can see that isFlying is set here with the code below.
boolean isFlying = systemStatus == MAV_STATE.MAV_STATE_ACTIVE || ...;
MAV_STATE_ACTIVE, defined here states
System is active and might be already airborne. Motors are engaged.
So isFlying doesn't mean it's airborne but just that the motors are turned on. That occurs when you call VehicleApi.getApi(this.drone).arm(true); because you are literally arming the vehicle at that point.
For takeoff, you want to use the ControlApi. ControlApi.getApi(drone).takeOff(desired_altitude, listener) and for land you need to use VehicleApi.getApi(drone).setVehicleMode(VehicleMode.COPTER_LAND, listener)
The sample code you're looking at is very old. I suggest you follow the sample app from github.

I have not tried android-dronekit before and I noticed that the src folder have not been updated for more than two years on github.
I advice you to use python-dronekit because there is a powerful library called pymavlink in python and used in python-dronekit. You can build hyper application if you want but first try to takeoff and land in python.

Android - Libgdx - Couldnt Load File

I have used google, read all Questions here on StackExchange but still couldnt solve my Problem.
So Im following a tutorial from kilobolt(Zombie Bird).
The desktop-version of the game is running without problems, but if I want to run it on an android emulator I get this error message:
"Couldn't load file: data/logo.png"
The line where I get the error looks like this:
logoTexture = new Texture(Gdx.files.internal("data/logo.png"));
My Android Path looks like this:
-Android
-Assets
-Data
-logo.png
I assume this is the correct path.
I have tried cleaning the project, I used Gradle > Refresh All, I restarted Eclipse.
Nothing worked.
Im a little bit confused cause if I move the file outside of Data but in the Assets Folder and change the path to this:
logoTexture = new Texture(Gdx.files.internal("logo.png"));
It works.
Can someone explain me why I cant use the Data Folder inside of Assets?

What emulator are you using to run it? For me, the same code works properly on an actual Android device, so I'd assume it is an Emulator error. Possibly has to do with the / as the seperator character. This is just a wild guess, but does
logoTexture = new Texture(Gdx.files.internal("data" + File.separator + "logo.png"));
fix it, or break it?

maybe it's caused by the difference of OpenGl ES 1 and OpenGl ES 2...
Using OpenGl ES 1 the picture size has the power of two. Bear with me - I'm new to libgdx.. :)

android phonegap if timeout fallback

i'm trying to do a fallback on a timeout event!
ive set super.setingeterproperty("loadurltimeoutvalue", 60") so i can simulate it. Been searching around and havent found alot of answers to this.
I'm trying to do this: if timeout event -> load page from assets folder.
this so i can hide the error message that occurs on timeout. that error message contains the address to the site being loaded, and i dont want that at all to show up anywhere.
if (mWebView.loadUrlTimeout == currentLoadUrlTimeout) {
//super.loadurl("android_assets bla bla")
}
Found that code here, but cant get it to work. i think there are lots of parts missing, to the code, as i tried stripping it.
I am still pretty fresh to this, so there might be really logical flaws which i just dont see.
Any help greatly appreciated :)

Try setting following property in the activity before loading the page, it should work:
super.setStringProperty("errorUrl", "file:///android_asset/www/error_page.html");

setStringProperty has been deprecated in 3.0. Use config.xml instead:
<preference name="ErrorUrl" value="myErrorPage.html"/>