Deploying on other platforms as well

[SGaist]

Did you use the offline installer at first ?

[tomy]

@SGaist
No. directly used the maintanence tool.
My offline installer is this qt-opensource-windows-x86-mingw530-5.7.0 (size 1.10 GB).

[SGaist]

So your original installation comes from an online installer, correct ?

[tomy]

@SGaist
No, because of disconnecting the Internet here, I firstly dowloaded that offline installer and used it for installing 5.7

[SGaist]

There's also an offline installer for the Android build.

[tomy]

@SGaist
Do you mean that I should download and install qt-opensource-windows-x86-android-5.7.0.exe? If so, should I install it over Qt Creator folder or what?

[p3c0]

@tomy

Do you mean that I should download and install qt-opensource-windows-x86-android-5.7.0.exe?

Yes

If so, should I install it over Qt Creator folder or what?

Better to uninstall the previous one

[jsulm]

@tomy QtCreator is not Qt - why should you install Qt over QtCreator?
Install it somewhere - you probably already have this folder c:\Qt with your old Qt version, install the Android version there in a subfolder.
QtCreator can handle multiple Qt versions, so no need to uninstall your existing version.

[J.Hilk]

Just an fyi,

In Qt creator 4.2.1 based on qt5.8.0 the layout in the options section of Qt-Creator changed, the android path specifications are now under "Devices" for what ever reason.

Took me a moment to find them.

The docs still say Tools > Options > Android instead of Tools > Options > Devices >Android

[tomy]

@p3c0

Better to uninstall the previous one

Thanks, but I don't want to code only for Android platform. If possible I'm going to install it on a subfolder in C:\Qt.

@jsulm

QtCreator is not Qt - why should you install Qt over QtCreator?

I said that because I just wanted to have only an IDE for both.

Install it somewhere - you probably already have this folder c:\Qt with your old Qt version, install the Android version there in a subfolder.
QtCreator can handle multiple Qt versions, so no need to uninstall your existing version.

Good, I will do that. Thanks.

@J-Hilk
Thanks for your info.
There isn't the path you talked about in 5.7 in Devices, yes.

PS: I haven't installed Qt creator (of Qt 5.7), only Qt Creator (Community).

[tomy]

I decided to uninstall 5.7 and installed qt-opensource-windows-x86-android-5.8.0.exe with these features.
Now I think I should add an AVD on the AVD Manager cadre of the Android tab.
I tried to create a new AVD named "AVD_for_Android_apps" this way, but it needs an imgae (!) seemingly!

Have I gone the way correctly?

[p3c0]

@tomy I think you need to run
./android update sdk inside android sdk folder
which will launch an sdk manager where you can update sdk's and install system images.

[tomy]

If you meant SDK Manager file, I ran this as Administrator and it showed this page. It appears that everything is installed and needs no changes!

[tomy]

It worked (although I don't know how! :)).
Now I'm following an example of docs for being familiar with android programming, and have three options/kits for choosing.

Two last questions:
1- should I always check only the checkbox of the first one, "Android for armeabi-v7a (GCC 4.9, Qt 5.8.0)", for Android apps?

And 2- Should I always check only the checkbox of the third one, "Desktop Qt 5.8.0 MinGW 32bit (default)", for Windows apps?

Everything OK now?

[J.Hilk]

@tomy

Theres a reason, that there are 2 Android-kits, armeabi-v7a and x86.

Never the less 90% off all android devices have the v7 architecture so you're most likly fine with arm7 as the only selection for your android compiler.

If you want to publish your app in the Play-Store, you should compile for both, make sure that it works for both, and publish them both. GooglePlay will handle the correct distribution for you.

[tomy]

Good info thanks. (And is the answer of the second question, "yes"?)

OK, I continued the project and have the files of it on Qt Creator.
for example, this introductory example have two buttons on MainForm.ui.qml. Do I need an android device (say, a Samsung mobile) to test the projects, each time!!?

[SGaist]

2. Yes and no, yes if you only plan to develop it for Windows and no if you want to test it on Windows + Android

No you don't need a device, you can use the emulator coming with the SDK however using a device allows you to have "real life" tests.

[tomy]

I'm very new on both Qt, and Android programming so I spare it for latter to decide and for the time being I choose them separately for each type of codes/platforms.

I found this and had a look at the Running an App in the Android Emulator section and have this emulator.

Now I have that and also a folder named Andapp1 of the Docs example. There is no .apk extension file to run on an Android device!

I'm trying to find how to run that project using that emulator. (Rather complicated).

[p3c0]

@tomy When you run your application does it pop up a window as to where to run the app?
The apk is created somewhere in the build folder. Check the build logs.

[tomy]

@p3c0
There is no Build folder. Have I gone wrongly? :-(

When I run Andapp1 project using Qt Creator, this window comes up and the OK key is grayed out and it's not possible to select Nexus-5 there!
By double clicking on Nexus-5 there, I get these errors at the bottom of the Qt Creator:

Error while building/deploying project Andapp1 (kit: Android for armeabi-v7a (GCC 4.9, Qt 5.8.0))
When executing step "Deploy to Android device"