Eclispe daytoulouse combining the power of eclipse with android_fr_1024_768_slideshare
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The document outlines the expertise and background of an Android development specialist, detailing the evolution of Android from its inception to its dominance in the smartphone market. It provides a step-by-step guide on setting up an Android development environment, creating projects, and utilizing debugging tools. Additionally, it highlights various resources for learning Android programming and mentions future potential for Android's presence in diverse devices beyond smartphones.
![• Now, open the Histogram View
• Choose byte[] and select “list object with incoming reference”
44](https://image.slidesharecdn.com/eclispedaytoulousecombiningthepowerofeclipsewithandroidfr1024768slideshare-120525030325-phpapp02/85/Eclispe-daytoulouse-combining-the-power-of-eclipse-with-android_fr_1024_768_slideshare-44-320.jpg)
![• Now, open the Histogram View
• Choose byte[] and select “list object with incoming reference”
• Open the items and fall on your class and select “list object with incoming reference”
45](https://image.slidesharecdn.com/eclispedaytoulousecombiningthepowerofeclipsewithandroidfr1024768slideshare-120525030325-phpapp02/85/Eclispe-daytoulouse-combining-the-power-of-eclipse-with-android_fr_1024_768_slideshare-45-320.jpg)
![• Now, open the Histogram View
• Choose byte[] and select “list object with incoming reference”
• Open the items and fall on your class and select “list object with incoming reference”
• Find again the duplicated activity
46](https://image.slidesharecdn.com/eclispedaytoulousecombiningthepowerofeclipsewithandroidfr1024768slideshare-120525030325-phpapp02/85/Eclispe-daytoulouse-combining-the-power-of-eclipse-with-android_fr_1024_768_slideshare-46-320.jpg)
![• Now, open the Histogram View
• Choose byte[] and select “list object with incoming reference”
• Open the items and fall on your class and select “list object with incoming reference”
• Find again the duplicated activity
Open one of then and Just look at the Handler and the Background Thread => Leak Resolved
47](https://image.slidesharecdn.com/eclispedaytoulousecombiningthepowerofeclipsewithandroidfr1024768slideshare-120525030325-phpapp02/85/Eclispe-daytoulouse-combining-the-power-of-eclipse-with-android_fr_1024_768_slideshare-47-320.jpg)
Eclispe daytoulouse combining the power of eclipse with android_fr_1024_768_slideshare
- 1. presents: Android Java J2EE Specialist Author of available on 1
- 2. •Android in numbers •Installing the work space •Creating a project •Using DDMS perspective •Using DDMS perspective and Eclipse Debug Bridge •Tracking memory leaks 2
- 3. Android Trainer Consultant Expert mathias.seguy.it@gmail.com (mail) @android2ee (twitter) Author of eBooks on Android programming (Android2ee.com) Android Speaker and Teacher Fundamentals Mathematics Doctor Technical expert of the “Agence Nationale de la Recherche” Developpez.com Redactor Android Blogs : Android2EE sur DVP et Android2ee sur BlogSpot Fundamentals Mathematics Android2EE PHD Via CapGemini Via Sopra Birth Siemens Magnus DGA CNES Airbus Airbus Airbus STI Android2 VDO EE 03 04 05 06 07 08 09 10 11 12 Java J2EE Android Manager Manager Technical Developer Developer GUI Leader Technical Technical Manager Technical Director Android2EE Leader Leader Leader Founder ENSEEIHT‟s IT At STI Master 3
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- 5. •2003 Android Inc creation •2005 Google bought Android •2007 Open Handset Alliance birth •2007 Android Beta SDK released In 3 years, from September 2008 to November 2011, 8 major versions of the system are delivered by Google 5
- 6. Android in numbers: • 27% of mobiles are smart phones (World Wild, 2011); • 52.5% of smart phones are Android phones (World Wild, Dec 2011); • 1 smart phone over two sold is an Android Phone (US, Dec 2011); • +17391% of available applications on GooglePlay in 3 years; • +500 000 applications in GooglePlay (April 2012); • +15 000 000 downloads (May 2012); • 2012 will be the Android Tablet year. Ok, today, Android is the smart phones OS winner. But tomorrow, Android will be everywhere: mobile, tablet, TV, watches, Hifi, car, appliances, home automation Everywhere, I tell you. 6
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- 8. It‟s pretty easy: First: • Download Java (http://www.oracle.com/technetwork/java/javase/do wnloads/index.html) and install it; • Download Eclipse (http://www.eclipse.org/downloads/) and install it; • Download the Android SDK (http://developer.android.com/sdk/index.html) and unzip it. In Eclipse, add the Android plugin: • Go in Help/install New software. Click Add and set Android and https://dl- ssl.google.com/android/eclipse/ • Select all the elements, click next and finish. Restart Eclipse : • In WindowPreference select Android et set the Android SDK path (the folder in which you unzip the Android SDK) Ok, it‟s done, you can code Android program.
- 9. Now open the SDK Manager And launch the update/installation (Android SDK Tools, platform-tools, SDK, documentation,…). A long download is waiting for you. Then define Android Virtual Device (Emulator) for tests.
- 10. Now open the SDK Manager A quick glance at the window.
- 11. Open the AVD window.
- 12. Open the AVD window. Select new. Define a new Emulator: • Name • Target • SD card size • Skin (resolution) • Hardware
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- 14. Let‟s create a first project a see : • Android “new project” Wizard • Android Manifest wysiwyg • Android Layout wysiwyg • Android resources wysiwyg 14
- 15. Let‟s create a first project a see : File->new->Others…-> Android Project and follow the wizard: Project Name, Project SDK to target, 15
- 16. Let‟s create a first project a see : File->new->Others…-> Android Project and follow the wizard: Project Name, Project SDK to target, Application name, Package name, Activity name, min SDK, Project created 16
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- 21. Open the DDMS perspective. • Devices • Emulator Control • Set of action buttons • File Explorer • Resource explorer • Lint Warning • LogCat 21
- 22. Status Version/Tid/Pid Devices Connected Avaiable Processes to watch 22
- 23. Control the emulator telephony status Emulate a phone call to the emulator Emulate the reception of an SMS Control the emulator geo-location using: Your own lat/long A GPX file A KML file 23
- 24. Screen Debug Heap Thread Stop Capture Take a screen shoot Strart the « Debug » Stop a process on a Process Begin CPU time Begin the Heap Cause Garbage tracking tracking using the Collector usefull to Heap View update heap stats Begin threads tracking using the Dump the Heap Threads View within Eclipse (using MAT) or in a file 24
- 25. Create a folder Delete a file Push a file onto the device Pull a file from the device 25
- 26. Ressources used by the process Selected process 26
- 27. List all the problems found in the workspace, a PMD like dedicated to Android Description Category Location Description of the rule 27
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- 30. Using the Debug mode with the DDMS perspective. • Allocation tracker • Heap tracking • Threads tracking • Heap Dump 30
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- 36. It‟s quiet simple: Thread I.H.M Thread de traitement Link an activity with a life cycle and a Activity Handler thread with no management sendMessage( between the thread lifecycle and the ) message OnDestroy() OnCreate() Thread de traitement initiale Thread I.H.M sendMessage () Activity Handler fantôme fantôme Thread de traitement Activity Handler sendMessage( ) message 36
- 37. Application Main Activity Handler Thread 1 37
- 38. Application Main Activity 1 Handler 1 Thread 1 Main Activity 2 Handler 2 Thread 2 38
- 39. Application Main Activity 1 Handler 1 Thread 1 Main Activity 2 Handler 2 Thread 2 Main Activity 3 Handler 3 Thread 3 39
- 40. Shallow heap is the memory consumed by one object. GC Root S=100 Retained set of X is the set of objects which would be R=400 removed by GC when X is garbage collected. Retained heap of X is the sum of shallow sizes of all objects in the retained set of X, i.e. memory kept alive by X. Generally speaking, shallow heap of an object is its size in the heap and retained size of the same object is the amount of S=100 S=100 heap memory that will be freed when the object is garbage R=200 R=100 collected. S=100 R=100 40
- 41. Using the Debug mode with the DDMS perspective. • Allocation tracker • Heap tracking • Threads tracking • Heap Dump • Save the heap, • Convert the heap using: hpro-conv dump.hprof dump-converted.hprof • D:Eclipseeclipsex64_indigo_Androidandroid-sdktools>hprof-conv.exe D:AndroidConferenceEclipseDayToulousehrpofcom.android2ee.tuto.thread.orphan.hprof D:AndroidConferenceEclipseDayToulousehrpofcom.android2ee.tuto.thread.orphan.converted.prof 41
- 42. • Open it in MAT the converted hprof • Dominator tree => We detect our Thread 42
- 43. • Open it in MAT the converted hprof • Dominator tree => We detect our Thread 43
- 44. • Now, open the Histogram View • Choose byte[] and select “list object with incoming reference” 44
- 45. • Now, open the Histogram View • Choose byte[] and select “list object with incoming reference” • Open the items and fall on your class and select “list object with incoming reference” 45
- 46. • Now, open the Histogram View • Choose byte[] and select “list object with incoming reference” • Open the items and fall on your class and select “list object with incoming reference” • Find again the duplicated activity 46
- 47. • Now, open the Histogram View • Choose byte[] and select “list object with incoming reference” • Open the items and fall on your class and select “list object with incoming reference” • Find again the duplicated activity Open one of then and Just look at the Handler and the Background Thread => Leak Resolved 47
- 48. This presentation has used the following references: • Android2ee„s Ebooks and tutorials : http://www.android2ee.com • Android web sites: • http://developer.android.com/index.html • http://android-developers.blogspot.fr/ • http://www.google.com/events/io/2011/sessions.html • Android Design Guide: http://developer.android.com/design/index.html On Android2ee, you‟ll find the following tutorials: • Sensors • Threads, handlers and memory leaks • AppWidgets • Dynamic GUI creation • REST Services • RSS reader • Use Maven for Android projects • Deliver on GooglePlay Sur developpez.com vous trouverez les articles suivants (français seulement): •Déployer son application Android et obtenir sa clef MapView. •Construire dynamiquement ses IHM Android •Les capteurs Android •Thread, Handler, AsyncTask et fuites mémoires •Investir l'écran d'accueil Android avec les AppWidgets •Android, Livrer son projet sur GooglePlay 48
- 49. . Thanks for your attention. android2ee.com. See you in: Brazzaville #android2ee In September mathias.seguy.it@gmail.com MySensors, MyLight et MyTorch available on GooglePlay 49