Mobile and Embedded

[quote author="wqking" date="1418735334"]9.7M for compressed apk or ipa sounds nice. [/quote] I don't build it for iOS yet, maybe for statically linkink the ipa will be smaller [quote author="wqking" date="1418735334"]10 seconds startup time? That's really terrible user experience for mobile application. Is it caused by the parsing of QML? Or anything else? Is there any way to optimize the startup time?[/quote] Well maybe not exactly 10 seconds on startup, but almost there. I created a few items and javascript functions . As I said I didn't optimize the QML items creation with Loader (but not many items at startup). Of course QML parsing may be long-drawn, I don't know very much details yet, my experience with QML is quite new. Maybe these links are useful for you :-) : "QML Performance":http://qt-project.org/doc/qt-4.8/qdeclarativeperformance.html and "Performance Considerations And Suggestions":https://qt-project.org/doc/qt-5-snapshot/qtquick-performance.html

My question is there any other way where we do this. without using Kinects. can we used "pointable":https://www.youtube.com/watch?v=2R0h75j3_iQ like as show in video Which might reduce my cost

.pro.user file contains the configuration of Qt Creator for you project e.g. the Qt version and kit

I wonna thank you all, finally i managed to solve my problem. The solution has been the update at qt5.4. Best upgrade i ever did! :) Thank you again, mikyago.

Figured it out. Not sure why this ever has worked! The problem is in line 8. It should be: @m_model = new ModelView(*m_context, NULL);@ I was passing in a bogus parent.

AFAIK, text input requires a press and a release event

Looks like you are missing some dependencies for nis

The problem was, I needed to throw away the android and iphone projects in my main project. Then re-add them with Qt 5.4 and everything fired up fine.

OK, will give that a go when I need it. Thanks.

So, it looks like the Doc isn't correct: Qt5.4 supports Windows Phone 8.1, support for WP8.0 has been dropped. You don't need Visual Studio 2012, 2013 is fine! With which version do you open the VC++ Project? Express for Desktop? Express for Phone? Professinal/Ultimate? I always compile it with 2013 Ultimate for every platform, everything works fine. Additionally, you always have to compile it for Windows 8.1-x86, Windows 8.1-ARM (Windows RT) and Windows Phone 8.1 individually.

Auto focus on Android doesn't work. See the bug and a way to solve it "here":https://bugreports.qt-project.org/browse/QTBUG-42224#comment-268133.

I have an error java.lang.RuntimeException: Can not create handler inside thread that has not called Looper.prepare () @import android.content.Intent; import android.content.IntentFilter; import android.os.BatteryManager; import android.app.Activity; import android.os.Bundle; public class NotificationClient extends org.qtproject.qt5.android.bindings.QtActivity { public float getBatteryLevel() { Intent batteryIntent = registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED)); int level = batteryIntent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1); int scale = batteryIntent.getIntExtra(BatteryManager.EXTRA_SCALE, -1); if(level == -1 || scale == -1) { return 50.0f; } return ((float)level / (float)scale) * 100.0f; } public static float notify2() { try{ NotificationClient obj1 = new NotificationClient(); return obj1.getBatteryLevel(); }catch(Exception e){ System.out.println( e.toString() ); } } }@

If you really need to keep the QPushButton design, you should rather work with much less buttons and use e.g. a small database and use e.g. QDataWidgetMapper

Hi and welcome to devnet, Out of curiosity, why did you split your application in two ? You have a console active that uses your frame buffer so you would need to deactivate it in order to not have any cursor blinking.

Hmm. Then I'm still using QGLWidget. I'm getting a bunch of warnings coming through when I convert in Qt 5.4 that didn't occur in 5.3. I'll need to post the warnings and get some help figuring out whats going on.

I was afraid to hear somethink like that :/ Thanks anyway

Hi and welcome to devnet, Do I understand correctly that you are using two different builds of Qt for embedded ? It looks like you didn't install qvfb