Downloaded 282 times
![QML and showFullScr...
--- a/main.cpp
+++ b/main.cpp
@@ -50,14 +56,16 @@ int main(int argc, char *argv[])
-#elif defined (Q_OS_SYMBIAN)
+#elif defined (Q_OS_ANDROID) || defined(Q_OS_SYMBIAN)
view.setSource(QUrl("qrc:/qml/Main.qml"));
view.showFullScreen();
#else](https://image.slidesharecdn.com/targetingandroidwithqt-111026070303-phpapp01/85/Targeting-Android-with-Qt-36-320.jpg)
![Font hack
--- a/main.cpp
+++ b/main.cpp
@@ -29,6 +29,12 @@ int main(int argc, char *argv[])
application.setOrganizationDomain("cutehacks.com");
application.setOrganizationName("Cutehacks");
+#if defined(Q_OS_ANDROID)
+ QFont boldFont = application.font();
+ boldFont.setBold(true);
+ application.setFont(boldFont);
+#endif](https://image.slidesharecdn.com/targetingandroidwithqt-111026070303-phpapp01/85/Targeting-Android-with-Qt-37-320.jpg)
![QML and showFullScr...
--- a/main.cpp
+++ b/main.cpp
@@ -50,14 +56,16 @@ int main(int argc, char *argv[])
-#elif defined (Q_OS_SYMBIAN)
+#elif defined (Q_OS_ANDROID) || defined(Q_OS_SYMBIAN)
view.setSource(QUrl("qrc:/qml/Main.qml"));
view.showFullScreen();
#else](https://image.slidesharecdn.com/targetingandroidwithqt-111026070303-phpapp01/75/Targeting-Android-with-Qt-36-2048.jpg)
![Font hack
--- a/main.cpp
+++ b/main.cpp
@@ -29,6 +29,12 @@ int main(int argc, char *argv[])
application.setOrganizationDomain("cutehacks.com");
application.setOrganizationName("Cutehacks");
+#if defined(Q_OS_ANDROID)
+ QFont boldFont = application.font();
+ boldFont.setBold(true);
+ application.setFont(boldFont);
+#endif](https://image.slidesharecdn.com/targetingandroidwithqt-111026070303-phpapp01/75/Targeting-Android-with-Qt-37-2048.jpg)
Uploaded byEspen Riskedal
Targeting Android with Qt
The presentation discusses how to publish Qt applications on the Android market, introducing the Necessitas project, a community port of Qt for Android. It covers installation steps, provides examples, and details the necessary attributes for developing and publishing apps, including API levels, app signing, and market requirements. The speaker emphasizes the potential of Qt for mobile platforms and outlines the roadmap for Necessitas development.
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Targeting Android with Qt
- 1. Targeting Android withQt Espen Riskedal / cutehacks.com @snowpong
- 2. Introduction About me, and about the talk.
- 3. About me ● Trolltech and Nokia ● Symbian and Windows CE ● Co-founded cutehacks.com Espen Riskedal @snowpong ● Still believe in Qt Everywhere
- 4.
- 5. Purpose of thistalk “Teach you how to publish Qt apps in the Android market” I have a vested interest.
- 6. Agenda ● Introduction ● Qt on mobile platforms ● Necessitas ● Publishing to Android Market ● Conclusion
- 7. 2.3.x “Gingerbread” ● Google Nexus S ● December 2010 ● Linux kernel 2.6.35 Photo: flickr.com/quinnanya/ CC / Some rights reserved
- 8. Qt on mobileplatforms A brief introduction on which mobile platforms you can target with Qt.
- 9.
- 10.
- 11.
- 12. Some Android details ● 4 major releases ● ARM and x86 ● Linux ● Dalvik
- 13. Well known models GalaxyS2 Tab 10.1 Xperia Play
- 14. Android API levels Platformversion API Level VERSION_CODE ... ... ... Android 2.3 – 2.3.2 9 GINGERBREAD ... ... ... Android 2.1.x 7 ECLAIR_MR ... ... ... Android 1.5 3 CUPCAKE ... ... ...
- 15. Android platform distribution http://developer.android.com/resources/dashboard/platform-versions.html
- 16. A possible futurefor Qt
- 17. Photo: flickr.com/quinnanya/ CC/ Some rights reserved 1.6 “Donut” ● Acer Liquid A1 ● September 2009 ● Linux kernel 2.6.29
- 18. Necessitas Necessitas is acommunity port of Qt for Android. Its founder and main developer is BogDan Vatra.
- 19. Installing Necessitas ● OpenJDK (and Ant) ● Necessitas 0.3 (3rd alpha) http://bit.ly/qtand03 ● Linux ● not root
- 20.
- 21. Included components Android SDK AndroidNDK Qt, QtWebKit, QtMobility Qt Creator gdb / gdbserver Ant JDK
- 22.
- 23. Getting a USBconnection ● Enable USB debugging ● Settings->Applications->Development ● Check connection cd android-sdk/platform-tools ./adb devices 304D1...6203B05E device ???????????????? no permissions ● Restart if needed sudo ./adb kill-server sudo ./adb devices
- 24. Install Ministro /Ministro 2
- 25. A “Hello QtQuick” example ● Qt Quick Project → Qt Quick Application ● Name ● Target (Android / armv5) ● Next/Next/Next ● Add QtDeclarative ● Press Ctrl-R
- 26. Let's do itfor real
- 27. Our “funky” main.qml importQtQuick 1.0 Rectangle { anchors.fill: parent gradient: Gradient { GradientStop { position: 0.0; color: "red" } GradientStop { position: 0.33; color: "yellow" } GradientStop { position: 1.0; color: "green" } } Rectangle { id:ball; width:100; height:100; radius: 50 color:"black" Behavior on x { PropertyAnimation{ duration:500; easing.type: Easing.OutBounce} } Behavior on y { PropertyAnimation{ duration:500; easing.type: Easing.OutBounce} } } MouseArea { anchors.fill: parent onClicked: { ball.x=mouse.x ball.y=mouse.y } } }
- 28.
- 29. Added files explained Inaddition to the .pro and .h/.cpp files: android/AndroidManifest.xml android/build.xml android/res/* android/src/.../ministro/* android/src/.../origo/Qt*
- 30. How does itreally work?
- 31. Necessitas status ● SDK (almost) complete for ● Windows, Linux and Mac ● Qt Creator ● Deploy libraries and app ● Run app ● Debug app ● Signs the app
- 32. Popularity of Necessitas ● ~10000 downloads of 0.2.1 (2nd alpha) ● ~3200 downloads of 0.3 so far (3rd alpha) ● ~5000 views of my Münich slides
- 33. Necessitas roadmap ● Alpha3 (just released!) ● Lots of fixes ● Signing for Android Market ● OpenGL etc. ● ... ● Alpha4 ● Android Style ● Menu integration ● ... ● Beta ● Refactor Java wrapper code ● Promise BIC ● …?
- 34. Porting an actualapp Nokia N9 / Nokia 700 Samsung Galaxy S2
- 35. Changes needed ● Use the right QML file and showFullScreen() ● Hack around font issue ● Add app icons ● Set package name ● Set minSdkVersion
- 36. QML and showFullScr... ---a/main.cpp +++ b/main.cpp @@ -50,14 +56,16 @@ int main(int argc, char *argv[]) -#elif defined (Q_OS_SYMBIAN) +#elif defined (Q_OS_ANDROID) || defined(Q_OS_SYMBIAN) view.setSource(QUrl("qrc:/qml/Main.qml")); view.showFullScreen(); #else
- 37. Font hack --- a/main.cpp +++b/main.cpp @@ -29,6 +29,12 @@ int main(int argc, char *argv[]) application.setOrganizationDomain("cutehacks.com"); application.setOrganizationName("Cutehacks"); +#if defined(Q_OS_ANDROID) + QFont boldFont = application.font(); + boldFont.setBold(true); + application.setFont(boldFont); +#endif
- 38. Setting app icons commita91fa2461ced0e75270b71c41ee80309e0697777 Author: Espen Riskedal <espen@cutehacks.com> Date: Sun Oct 9 22:17:31 2011 +0200 added proper icons where it counts android/res/drawable-hdpi/icon.png android/res/drawable-ldpi/icon.png android/res/drawable-mdpi/icon.png
- 39. Setting package name ---a/android/AndroidManifest.xml +++ b/android/AndroidManifest.xml @@ -1,5 +1,5 @@ <?xml version='1.0' encoding='utf-8'?> -<manifest package="eu.licentia.necessitas... +<manifest package="com.cutehacks.fly" ...
- 40. Setting minSdkVersion --- a/android/AndroidManifest.xml +++b/android/AndroidManifest.xml @@ -14,4 +14,5 @@ <supports-screens android:largeScreens="t... <uses-permission android:name="android.pe... <uses-permission android:name="android.pe... + <uses-sdk android:minSdkVersion="7"/> </manifest>
- 41. 3.x “Honeycomb” ● Motorola Xoom ● February 2011 ● Linux kernel 2.6.36 Photo: flickr.com/quinnanya/ CC / Some rights reserved
- 42. Publishing to AndroidMarket Sometimes the easy part is writing the app. The hard part is getting it published.
- 43. .APK format explained ● .JAR and .ZIP ● Typically includes: META-INF/ res/ AndroidManifest.xml classes.dex resources.arsc ● Native apps also include: libs/armeabi/
- 44. Two publishing options Ministro Bundling Qt + dev friendly + UX + updates + BIC + multiple archs + custom fixes + space / bandwidth - space / bandwidth - UX - less archs - updates - no updates - BIC
- 45. Bundling Qt withyour app Target one arch (ARMv5) Set relatively high API level Only include the actually needed libs Disable Ministro dependencies Beware of SSL certs Here be dragons :-)
- 46. Publishing with Ministro cd android/ ant release This produces Fly-unsigned.apk in the shadowbuild directory.
- 47. Getting an A.M.account http://market.android.com/publish You'll need: A credit card with 25USD A phone number
- 48. Name, email andphone
- 49.
- 50.
- 51. One time feeof 25USD
- 52.
- 53.
- 54. We can publishfree apps!
- 55. Sign up formerchant
- 56. We can makemoney!
- 57. Signing the .APK Createkey keytool -genkey -v -keystore cutehacks- release-key.keystore -alias cutehackskeystore -keyalg RSA -keysize 2048 -validity 10000 Sign package jarsigner -verbose -keystore cutehacks- release-key.keystore android/bin/Fly- unsigned.apk cutehackskeystore
- 58. Verifying the signature Verifysignature jarsigner -verify -verbose Fly-unsigned.apk 585 Tue ... META-INF/MANIFEST.MF 706 Tue ... META-INF/CUTEHACK.SF 1327 Tue ... META-INF/CUTEHACK.RSA sm 2932 Tue ... AndroidManifest.xml sm 1500 Tue ... resources.arsc sm 3064 Tue ... res/drawable-hdpi/icon.png sm 1543 Tue ... res/drawable-ldpi/icon.png sm 2347 Tue ... res/drawable-mdpi/icon.png sm 86680 Tue ... classes.dex sm 164020 Tue ... lib/armeabi/libfly.so s = signature was verified m = entry is listed in manifest Rename Fly-unsigned.apk to Fly-release.apk
- 59. Actually publishing http://market.android.com/publish You'll need: Signed APK (max 50MB) High-res app icon (512x512) Two screenshots (min 320x480) Title & Description
- 60.
- 61. Set name andscreenshots
- 62.
- 63. Installation UX withMinistro Press app Press “FREE” Press “OK”
- 64. Installation UX withMinistro Press app Press “Yes” Press “Ministro”
- 65. Installation UX withMinistro Press “Install” Press “Accept” Press “Yes”
- 66. Installation UX withMinistro
- 67. 2.0/2.1 “Eclair” ● Motorola Droid ● October 2009 ● Linux kernel 2.6.29 Photo: flickr.com/quinnanya/ CC / Some rights reserved
- 68. Conclusion Let's summarize andlook at the future.
- 69. Summary Qt on mobile:Potential bright future Necessitas: Out-of-the-box with rough edges Android Market: Quick and easy
- 70. Qt's future Qt 5– Qt Quick and scenegraph “The next billion” iOS and BBX Open Governance
- 71. Information on Necessitas Mailinglistfor users: http://groups.google.com/group/android-qt Mailinglist for devs/contributors: https://mail.kde.org/mailman/listinfo/necessitas-devel Repositories: http://community.kde.org/Necessitas/Repositories Wiki: http://sourceforge.net/p/necessitas/home/necessitas/
- 72. It's already possible Fly in Fly installed Android Market on phone http://bit.ly/cutefly https://market.android.com/details?id=com.cutehacks.fly
- 73. Questions? Thank you! @snowpong (Twitter)