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remo_bettin
Explorer

In February I switched my job, I was a C# developer and now, I`m using SAP UI5 to create new, modern software. My main task in the past was to create or modify some client applications. My current task is, to build a seat reservation tool using UI5.

During my work on the application I learned a lot about the SAPUI5 framework. Now I would like to share my experience with you.

First I would like to give you a short overview of the application.

I have a list of four rooms in my master view at the moment (later it would be a variable amount of rooms) and every room has a detail view with two, three or four seats. Every seat has his own attributes and positions. My current program includes a detail view with an “ObjectList” control, I bind the model at this element as an“ObjectListItems”.  After the event “UpdateFinished” I hide this control.

Why I go this kind of way?

Because I can`t bind my model at the tiles container in the XML view, so I don`t get an actual model. To continue my tiles story, I create a new function in the event (“UpdateFinished”) and draw the tiles. In this function I use the property ODataModel of the model. I collect all valid entries of my selected room and write them in a separate list. At the end I use a loop to create the tiles and fill them with the attributes.

In the detail.view I used an empty AbsoluteLayout as a container.


<iml:AbsoluteLayout id="AL1">
</iml:AbsoluteLayout>





The controller includes the following function:


drawTiles: function(oEvent) {
  // prepare a list
  var activeList = [];
  if (localController == null)
       localController = this;
  // get the local model and transfer all objects in the odata object into the prepared list,
  // if the the condition is true
  var model = localController.getView().getModel();
  $.each(model.oData, function(index, value) {
       if (index.indexOf("SeatSet")>-1) {
            activeList.push(value);
       }
  });
  // GET IMAGE
// var oImageSource = localController.getView().byId("imageBox").getSrc();
  var oImageSource = pic;
  // save the local items and model from hided list
  localItems = localController.getView().byId("lineItemList").getItems();
  // sort activeList and convert roomNo (string)
  var roomid = ZSeatReservationUI5.util.Formatter.Quantity(roomNo);
  activeList = this.sortList(activeList, roomid);
  // set ABSOLUTE LAYOUT
  var heigth = "800px";
  var width = "650px";
  var oAbsoluteLayout = localController.getView().byId("AL1");
  oAbsoluteLayout.setVisible(true);
  oAbsoluteLayout.destroyContent();
  oAbsoluteLayout.setHeight(heigth);
  oAbsoluteLayout.setWidth(width);
  oAbsoluteLayout.addContent(new sap.ui.commons.Image("Background", {src: oImageSource, width: width, heigth: heigth}));
  var i = 0;
  // loop on prepared list for every item and create for every item in list a new tile
  while(activeList.length > i) {
       var left = 0;
       var top = 0;
       var oContext = activeList[i];
  // defined positions
       switch (i){
                 case 0:
                         left = 116;
                          top = 50;
                          break;
                 case 1:
                           left = 340;
                            top = 50;
                           break;
                 case 2:
                           left = 116;
                           top = 306;
                           break;
                 case 3:
                           left = 340;
                           top = 306;
                           break;
                 default:
                           break;
            }
  left = left + "px";
  top = top + "px";
  var oTile = new sap.m.StandardTile();
  //Layout: size of tiles
  // Height: 226px
  // Width: 194px
  // set the bindings of the tiles
  oTile.setTitle(ZSeatReservationUI5.util.Formatter.List(oContext.Attribute));
  oTile.setNumber(ZSeatReservationUI5.util.Formatter.SeatText(oContext.SeatID));
  oTile.setIcon(ZSeatReservationUI5.util.Formatter.UserUrl(oContext.UserId));
  oTile.setInfo(ZSeatReservationUI5.util.Formatter.StateText(oContext.State));
  oTile.setInfoState(ZSeatReservationUI5.util.Formatter.State(oContext.State));
  oTile.setNumberUnit(oContext.User);
  oTile.attachPress(this.handleSelectDialogPress);
  oAbsoluteLayout.addContent(oTile, {left: left, top: top});
       i++;
  }
},
,,,,,,




After this, the app looks like:

The tiles includes a press event, that triggers a reservation of the selected seat.

In addition I’m using the following ODATA structure:

I have also tested another way, the use a TileContainer control. The structure is very simple, I have created a container in my detail view.


<TileContainer xmlns="sap.m"
       id="idTileContainer"
       width="100%"
       height="100%"
       editable=""
       allowAdd=""
       tileMove=""
       tileDelete=""
       tileAdd="">
       <tiles>
      </tiles>
  </TileContainer>




The controller includes the same function as the first example, except of the loop. I tried to use a template and the “bindAggregation” function of the container.


var oTileContainer = localController.getView().byId("idTileContainer"); oTileContainer.setModel(model);
var oTileTemplate = new sap.m.StandardTile({
  title:"{Attribute}",
     number: "{path:'SeatID', formatter:'ZSeatReservationUI5.util.Formatter.Quantity'}",
     info: "{path: 'State', formatter:'ZSeatReservationUI5.util.Formatter.StateText'}",
     icon: "{path: 'UserId', formatter:'ZSeatReservationUI5.util.Formatter.UserUrl'}",
     infoState: "{path: 'State', formatter:'ZSeatReservationUI5.util.Formatter.State'}",
     numberUnit: "{User}"
  });
oTileContainer.bindAggregation("tiles", "/SeatSet", oTileTemplate);
oTileTemplate)




I ask myself the following question, why I couldn’t use the tiles and the tile container like a list control, for example, likes an objectlist with objectlistitems?

I also tried to create a tile container at the XML view . In the following I tried to bind the model, but I only get an empty page. I think the problem is, I didn’t define the aggregation like in a list control. (short example below)


<List id="lineItemList" items="{path:'SeatSet'}" mode="{device>/listMode}"
  select="handleSelectDialogPress" updateFinished="updateFinished"
  visible="true"
  headerText="{i18n>DETAIL_CAPTION} {path: 'RoomID', formatter: 'ZSeatReservationUI5.util.Formatter.Quantity'}">
  <items> …

The detail view contains this snippet.


<TileContainer xmlns="sap.m"
  id="idTileContainer"
  width="100%"
  height="100%"
  editable=""
  allowAdd=""
  tileMove=""
  tileDelete=""
  tileAdd="">
  <tiles>
       <StandardTile xmlns="sap.m"
            id="idTile"
            removable="true"
            title="{i18n>DETAIL_SEATNO} {path:'SeatID', formatter:'ZSeatReservationUI5.util.Formatter.Quantity'}"
            info="{path: 'State', formatter:'ZSeatReservationUI5.util.Formatter.StateText'}"
            icon="{path: 'UserId', formatter:'ZSeatReservationUI5.util.Formatter.UserUrl'}"
            activeIcon=""
            number="{UserId}"
            numberUnit=""
            infoState="{path: 'State', formatter:'ZSeatReservationUI5.util.Formatter.State'}"
            type="None"
            iconDensityAware="true"
            press="">
       </StandardTile>
  </TileContainer>

I hope I could give you a little insight into the use of tiles. If there are any suggestions or ideas for  an improvement of my app, bring it on.

Thanks.

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