Qt Quick Demo - Tweet Search

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 import QtQuick 2.0
 import "content"
 import "content/tweetsearch.mjs" as Helper

 Rectangle {
     id: main
     width: 320
     height: 480
     color: "#d6d6d6"

     property int inAnimDur: 250
     property int counter: 0
     property var idx
     property var ids

     Component.onCompleted: ids = new Array()

     function idInModel(id)
     {
         for (var j = 0; j < ids.length; j++)
             if (ids[j] === id)
                 return 1
         return 0
     }

     TweetsModel {
         id: tweetsModel
         onIsLoaded: {
             console.debug("Reload")
             idx = new Array()
             for (var i = 0; i < tweetsModel.model.count; i++) {
                 var id = tweetsModel.model.get(i).id
                 if (!idInModel(id))
                     idx.push(i)
             }
             console.debug(idx.length + " new tweets")
             main.counter = idx.length
         }
     }

     Timer {
         id: timer
         interval: 500; running: main.counter; repeat: true
         onTriggered: {
             main.counter--;
             var id = tweetsModel.model.get(idx[main.counter]).id
             var item = tweetsModel.model.get(main.counter)
             mainListView.add( { "statusText": Helper.insertLinks(item.text, item.entities),
                                 "twitterName": item.user.screen_name,
                                 "name" : item.user.name,
                                 "userImage": item.user.profile_image_url,
                                 "source": item.source,
                                 "id": id,
                                  "uri": Helper.insertLinks(item.user.url, item.user.entities),
                                 "published": item.created_at } );
             ids.push(id)
         }
     }

     ListView {
         id: mainListView
         anchors.fill: parent
         delegate: TweetDelegate { }
         model: ListModel { id: finalModel }

         add: Transition {
             NumberAnimation { property: "hm"; from: 0; to: 1.0; duration: 300; easing.type: Easing.OutQuad }
             PropertyAction { property: "appear"; value: 250 }
         }

         onDragEnded: if (header.refresh) { tweetsModel.reload() }

         ListHeader {
             id: header
             y: -mainListView.contentY - height
         }

         footer: ListFooter { }

         function clear() {
             ids = new Array()
             model.clear()
         }

         function add(obj) {
             model.insert(0, obj)
         }

         signal autoSearch(string type, string str) // To communicate with Footer instance
     }
 }