camera can not open and make a map make nav cannot use

[DavidHan008]

i android 4.4.4.I think android_19 is useful. but now is android_15
dependencies {
compile project(':android_15')
}
can use upload the android_19?

[jubeira]

Hi @DavidHan008,
android_15 is just a project name, it doesn't mean you need to use version 15 for your app. The number 15 is just to enforce that you should have at least android 15 to use those features, but you can use later versions. Does that make sense to you?

[DavidHan008]

@jubeira Hi, but I open the android app peoject in android studio（IDE）. but when I use " make a map" app . the android view layer is nothing. I think the problem is android tool. what do you think?
my android is android 4.4.4
ROS indigo
laser lidar is LMS100

[DavidHan008]

@jubeira
android studio is 2.3.1 verson

rqt_graph are follows:

is seem rviz is norm. the topic map have data. but the android map view no data.
do you meet the same problems?

[jubeira]

@DavidHan008 unfortunately this seems to need some debugging.
As you say, if in RVIZ the maps looks OK, the problem may be the way the app is drawing it.
When you say Android tool, do you mean the build tools used?
I will take a look at this when I have some spare time. If you find a fix for the issue, please feel free to send a PR with the solution.

[l376571926]

in robot:
roscore
roslaunch turtlebot3_slam turtlebot3_slame.launch