ADF Mobile: 10 Things you don't get from the developers guide - Luc Bors

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Real Life ADF Mobile: 10 things you don't learn from the devguide

Oracle ADF Mobile has been around for over a year by now. There is a great developer guide available for everybody who wants to create an ADF Mobile application. However, when you are building your first ADF Mobile application you will definitely run into issues that cannot be solved by reading the developer guide.

Think of performance issues when taking pictures with modern devices. Images can take up to 5 Megabytes. What can you do to create a grid like springboard ? These are all topics not covered by the developer guide or by any available ADF mobile training.

In this session you will learn solutions for these and more real life ADF Mobile issues.

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ADF Mobile: 10 Things you don't get from the developers guide - Luc Bors

  1. 1. Real Life ADF Mobile 10 things that you don't get from the developer guide DOAG Konferenz; November 19th 2013
  2. 2. Who Am I •  Luc Bors •  Principal Consultant •  AMIS, Netherlands •  Friends of Oracle & Java •  5 Oracle ACE(D) •  Oracle Partner
  3. 3. 10 Things One App….. …. 10 Things ….. …. In 45 Minutes…. ….Really…?
  4. 4. Remote URLs •  For embedding existing web pages in your ADF Mobile app. •  For instance: –  News Website –  Existing enterprise app Mobile Browser Pages •  Note: –  Best use Optimized Mobile Browser Pages –  Apache Trinidad components –  Oracle recommends using ADF Mobile browser
  5. 5. Feature as Remote URL •  Create New Feature as Remote URL •  Create URL Connection
  6. 6. Whitelisting •  Why do we need to do this ? •  Mobile device is redirected to m.uefa.com
  7. 7. Property Change Events •  Raised when individual attributes of a model object are changed •  Use setter method to update attributes
  8. 8. Provider Change Event •  Raised when attributes of type Collection are changed on a model object •  When a new row is created –  fireProviderCreate(providerKey, rowKey, newRow) –  New row is inserted in the UI without refreshing other parts of the page •  When a row is deleted –  fireProviderDelete(providerKey, rowKey) – Row is deleted in the Iterator •  When the collection is refreshed –  fireProviderRefresh(providerKey) –  Iterator is refreshed –  Row currency is lost. providerChangeSupport.fireProviderRefresh("stadiums");!
  9. 9. Device Interaction •  The Device Datacontrol •  Drag n Drop support •  Attributes as fields •  Operations as buttons
  10. 10. Camera interaction •  Take a picture …………… import oracle.adf.model.datacontrols.device; DeviceManagerFactory.getDeviceManager().getPicture( 100, DeviceManager.CAMERA_DESTINATIONTYPE_FILE_URI, DeviceManager.CAMERA_SOURCETYPE_CAMERA, false, DeviceManager.CAMERA_ENCODINGTYPE_PNG, 200, 200); •  …… or get one from the Library DeviceManager.CAMERA_SOURCETYPE__PHOTOLIBRARY
  11. 11. Be careful !! •  DESTINATIONTYPE_DATA_URL you will get the image as base64 encoded string •  Camera’s are very good and picture quality is amazing. –  Encoding such images as base64 causes memory issues •  Don’t blow up your app. –  iOS you should set quality parameter to a value less then 50 to avoid memory issues –  On Android out-of-memory can be caused with default image settings. Make image smaller by setting targetWidth and targetHeight •  Small sized images can be uploaded using web services.
  12. 12. Data Services Device Native Container ADF Controller Local HTML Server HTML Push Handler Java VM ADF Model Device Services JDBC Cordova Business Logic Configuration Server Credential Management, SSO & Access Control ADF Mobile AMX View Web View App Config HTML5 & JavaScript Presentation SQLite Encrypted SQLite DB Mobile Device Server-Generated HTML APN/GCM Push Services SOAP & REST Services Server
  13. 13. Using Webservices •  The Webservice Datacontrol
  14. 14. Using Webservices directly •  Just drag & drop the method from the Data Control
  15. 15. Using Webservices from Java •  Invoke directly from java. •  Does not use the binding layer •  Uses Framework utilityMethod •  AdfmfJavaUtilities.invokeDataControlMethod() •  Datacontrol must be in available in DataBindings.cpx
  16. 16. Advantages •  •  •  •  •  Provides more flexibility to shape model to mobile UI Perform client side validation Minimize the number of round trips Offline caching Mash-up data from multiple services
  17. 17. Patterns… •  SOAP Webservice •  Web Service Data Control
  18. 18. Patterns… •  REST Webservice •  Rest Service Adapter
  19. 19. Patterns…. •  SQLite Database •  Plain JDBC
  20. 20. Obviously all the same…… •  Service Object Data Control Pattern –  Whatever “back end” data source you use….. –  It is completely transparent for UI
  21. 21. Feature Archives •  Feature Archives can be reused •  Deploy ADF Mobile app as FAR •  Consume features from FAR in other apps
  22. 22. Feature Archives •  Feature Archives Deployment Profile •  Connections Detail should be used (default is wrong ?) •  Only if connection is available in consuming APP name only works
  23. 23. Springboard & navigationbar •  Springboard configuration in adfmf-application.xml
  24. 24. The Default Springboard
  25. 25. The Custom SpringBoard
  26. 26. Configuring the springboard –  Do Not set AllowDeviceAccess to False for Springboard Feature !
  27. 27. Navigation •  Declarative Navigation –  Button/Link/ListItem <amx:listItem id="li1" action="detail" showLinkIcon="true">! <amx:setPropertyListener id="x" from="#{row.rowKey}”
 to="#{pageFlowScope.myBean.currentStadium}" ! type="action"/>!
  28. 28. Navigation •  Declarative Navigation –  Button/Link/ListItem •  Programmatic Navigation –  JavaCode AdfmfContainerUtilities.invokeContainerJavaScriptFunction(! AdfmfJavaUtilities.getFeatureName(), ! "adf.mf.api.amx.doNavigation", ! new Object[] { ”detail" });
     } !
  29. 29. Navigation •  Drawback –  No access to setPropertyListener •  Solution if you need that functionality: –  Set the value in java Code ValueExpression ve =! AdfmfJavaUtilities.getValueExpression(! "#{pageFlowScope.myBean.currentStadium}”! , String.class);! ve.setValue(AdfmfJavaUtilities.getAdfELContext()! , getCurrentStadium());!
  30. 30. Smart Navigation •  Search Stadiums •  What if resultset only contains one row ? if (s_stadiums.size()==1){! // only one stadium! Lets navigate AdfmfContainerUtilities.invokeContainerJavaScriptFunction(! AdfmfJavaUtilities.getFeatureName(), ! "adf.mf.api.amx.doNavigation", ! new Object[] { "detail" });! } !
  31. 31. Preserve Current Row •  Inside the <amx:listItem> element of the list page, you need to add a <amx:setPropertyListener> element to store the row key in a pageFlowScope variable. •  In the page definition of the detail page, you need to add a setCurrentRowWithKey action, which uses the pageFlowScope variable to set the current row. •  In the page definition of the detail page, you need to add an invokeAction executable for the setCurrentRowWithKey action to ensure the current row is automatically set when entering the detail page.
  32. 32. Preserve Current Row (A-Team) •  Easiest way: –  Download and install extension –  adf-mobile-persistence-sample-install.zip –  Extension contains StatefulIteratorBeanDcDefinition <AdapterDataControl id="PlayerService”
 FactoryClass="oracle.adf.model.adapter.DataControlFactoryImpl” 
 ImplDef=
 "oracle.ateam.sample.mobile.model.bean.StatefulIteratorBeanDcDefinition”! ……….
 Definition=
 "com.blogspot.lucbors.soccer.mobile.model.service.PlayerService” BeanClass=
 "com.blogspot.lucbors.soccer.mobile.model.service.PlayerService"! } ! •  NOTE: This will be the way ADF Mobile will do it in future versions
  33. 33. Gesture Support •  You can configure Button, Link, and List Item components to react to the following gestures: •  •  •  •  •  Swipe to the right Swipe to the left Swipe up Swipe down Tap-and-hold
  34. 34. Gesture examples •  The Swipe Gesture <amx:actionListener binding="#{mybean.DoX}" type="swipeRight"/> •  The Tap Gesture <amx:showPopupBehavior popupid="pop1" type="tapHold“ />
  35. 35. Use case example
  36. 36. Ingredients •  A (Web) service and datacontrol •  A Page with Listview •  An ActionListener with type SwipeDown •  Smart Java Code to call service conditionally <amx:listView var="row”! value="#{bindings.allLocations.collectionModel}" ! fetchSize="#{bindings.allLocations.rangeSize}”! id="lv1"> ! <amx:listItem id="li1"> ! <amx:actionListener type="swipeDown” ! binding="#{pageFlowScope.locationsBackingBean.checkForUpdates}”>! !
  37. 37. Change the data
  38. 38. Swimming-lanes •  No Horizontal scrollbar •  All ‘data’ available •  Use panelGroupLayout –  Width 100% <amx:panelGroupLayout layout="horizontal”
 inlineStyle="width:100%;">!
  39. 39. Push Notification (GCM) •  •  •  •  Subscribe to GCM Receive token Register with Enterprise app Enterprise app Pushes message to GCM •  GCM delegates message to device(s)
  40. 40. Server Side •  Class to push a message to a device. –  –  –  –  import com.google.android.gcm.server.Constants; import com.google.android.gcm.server.Message; import com.google.android.gcm.server.Result; import com.google.android.gcm.server.Sender; public class PushMessageBean { public String message; private Sender sender = new Sender(”<someSenderKey>"); public static final String ERROR_NOT_REGISTERED="NotRegistered”; private Message createMessage(String msg) { String sound = "default"; Message message = new Message.Builder().collapseKey("1") .delayWhileIdle(true) .addData("alert", msg) .addData("sound", sound).build(); return message;}
  41. 41. Server Side Send Code public void pushNow(ActionEvent actionEvent) { // Add event code here… DCBindingContainer bindings = (DCBindingContainer) BindingContext.getCurrent().getCurrentBindingsEntry(); DCIteratorBinding iter = bindings.findIteratorBinding("GcmSubscribersIterator"); Row curr = iter.getCurrentRow(); String target = (String)curr.getAttribute("DeviceToken"); String type = (String)curr.getAttribute("DeviceType"); if(type.equalsIgnoreCase("Android")){ Message message = createMessage(this.message); Result result = null; sendSingleMessage(target, message); }
  42. 42. Example •  Select device •  Send message •  Get notified +
  43. 43. GCM Demo
  44. 44. Summary One App….. …. 10 Things ….. …. In 45 Minutes… ….. Really ! 1.  2.  3.  4.  5.  Whitelisting Provider Refresh Pictures Data Service Pattern Feature Archives 6.  Springboard 7.  Prog Navigation 8.  Keep current Row 9.  Pull to Refresh 10.  Push Notifications
  45. 45. User Experience Patterns and Guidelines WIKI
  46. 46. Luc Bors, AMIS, The Netherlands Luc.Bors@amis.nl LucBors@gmail.com Follow me on : @lucb_

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