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so I'm building my first app, it's a remote control for an arduino device. Now I want it to look the same or at least similar on all android devices. I thought this would be achieved by using constraint layout. So I tried it out on two different devices:

1. xiaomi 9T Pro
2. Samsung Galaxy A5

Now the problem is: It looks good on the xiaomi phone, but it looks horrible and shifted on the Samsung Galaxy A5. So only using constraint layout doesn't seem to be the solution. Now how can I achieve it, that this app looks the same on every phone?

Here is my code for the xml file of the activity:

I have been struggling on how to execute multiple processes using QProcess. I was able to execute a single process, e.i. opening a terminal window QProcess *openTerminal = new QProcess(this);, after that I wanted to execute additional processes but I could not find a way to do that. The order of operations I am trying to achieve are:

1) opening a gnome-terminal (this is solved and am able to open after QPushButton click)

2) navigate to cd ~

3) Go to preferred directory cd catkin_docking_ws/

4) Launch proper application roslaunch lidar_deck lidar_deck_rosbag.launch &

I have installed QtCreator (4.2.2) and cmake (3.8.1) through homebrew on Mac OS 10.12.4.

I am importing an existing CMake project but when QtCreator is running cmake, I encounter the following error: