ROS2TalkerActivity.java logic issue：talkerNode.stop() will be run again , node will be stop twice?

[pengzhouhu]

when we click stop button,  OnClickListener() will run the changeState(false), this api will run the talkerNode.stop(), and when we down this, talkerNode.stop() will run again , so node will be stopped twice?

code path : ros2_android_examples/ros2_talker_android/src/main/java/org/ros2/examples/android/talker/ROS2TalkerActivity.java

just like below：

// Create an anonymous implementation of OnClickListener private OnClickListener startListener = new OnClickListener() { public void onClick(final View view) { Log.d(logtag, "onClick() called - start button"); Toast .makeText(ROS2TalkerActivity.this, "The Start button was clicked.", Toast.LENGTH_LONG) .show(); Log.d(logtag, "onClick() ended - start button"); Button buttonStart = (Button)findViewById(R.id.buttonStart); Button buttonStop = (Button)findViewById(R.id.buttonStop); changeState(true); } };

// Create an anonymous implementation of OnClickListener private OnClickListener stopListener = new OnClickListener() { public void onClick(final View view) { Log.d(logtag, "onClick() called - stop button"); Toast .makeText(ROS2TalkerActivity.this, "The Stop button was clicked.", Toast.LENGTH_LONG) .show(); changeState(false); Log.d(logtag, "onClick() ended - stop button"); talkerNode.stop(); } };

[pengzhouhu]

@esteve https://github.com/ros2-java/ros2_android_examples/pulls

[cuihaifengchina]

大哥，你安卓的项目跑的起来吗？我这边一直报错 CMake Error at CMakeLists.txt:18 (find_package): By not providing "Findspdlog_vendor.cmake" in CMAKE_MODULE_PATH this project has asked CMake to find a package configuration file provided by "spdlog_vendor", but CMake did not find one.

Could not find a package configuration file provided by "spdlog_vendor" with any of the following names:

spdlog_vendorConfig.cmake
spdlog_vendor-config.cmake

Add the installation prefix of "spdlog_vendor" to CMAKE_PREFIX_PATH or set "spdlog_vendor_DIR" to a directory containing one of the above files. If "spdlog_vendor" provides a separate development package or SDK, be sure it has been installed.