Shake and change

[vincent4443]

I want to create a shake function using accelerometer method to change my list view item when i am shake, but I still cannot find the solution. Anyone can help me? It is urgent...

[rahulvala]

Download Qt SDK 1.1.3 available in the Qt page.

You have to use the Sensor API (to get the sensor reading) from Qt mobility API :

http://doc.qt.nokia.com/qtmobility-1.2/quickstart.html
http://doc.qt.nokia.com/qtmobility-1.2/qml-sensor.html

regards,

[vincent4443]

This is the part I want to use shake function. For now it only can use drag and change.

import QtQuick 1.0
import QtMultimediaKit 1.1
import QtMobility.sensors 1.1





Rectangle {
id: rectangle1
width: 360
height: 640


property int i: 0
Accelerometer {
active: true

onReadingChanged: {

if( reading.x>12|| reading.x<-12)
{






}else{
}

}




}
ListView {
id: view
anchors.fill: parent
model: itemModel
preferredHighlightBegin: 0; preferredHighlightEnd: 0
highlightRangeMode: ListView.StrictlyEnforceRange
orientation: ListView.Horizontal
snapMode: ListView.SnapOneItem; flickDeceleration: 10000
cacheBuffer: 200
}


VisualItemModel {
id: itemModel

Rectangle {
id:rec1
width: view.width; height: view.height
color: "#F4F0FF"
Text {
id: page1
text: "page1"
}


Component.onDestruction: print("destroyed 1")
}

Rectangle {
id:rec2
width: view.width; height: view.height
color: "#F67008"
Text {
id: page1
text: "page2"
}


Component.onDestruction: print("destroyed 2")
}
Rectangle {
id:rec3
width: view.width; height: view.height
color: "#034621"
Text {
id: page1
text: "page3"
}

}}
Component.onDestruction: print("destroyed 3")



}

[rahulvala]

Qt quick is used to create UI, for your Qt application, you want to change the song according to sensor reading, as I got.

onReadingChanged: {

if( reading.x>12|| reading.x<-12)
{






}

Write something in between this lines.

[vincent4443]

Yes..Actually I am new in this QT, and this code I refer the code from the the internet for shake and play the song. For now, what I want is, when I shake the phone, the list view will change to next page without drag it. You got what I mean?

[rahulvala]

I go the point,,there are many articles available inn the wiki (Qt wiki) for sensor .

Are you using Qt SDK 1.1.3, so check the examples, and start learning, I would suggest don't start with Sensor example, but start learning with in built examples which are given with Qt SDK.

[vincent4443]

Yes...I am using Qt sdk 1.1.3.

[vincent4443]

Basically, I start learn this Qt a month a go. Now I got a project need to completed, and only this part is not completed yet.

[rahulvala]

Basically, I start learn this Qt a month a go. Now I got a project need to completed, and only this part is not completed yet.

Ok , try to do it according to the articles explanation. It is easy to do programming in Qt, as there are many articles and code tutorials are available,so .

regards,

[vincent4443]

Ok I go to look for it. Thank you.

[vincent4443]

I still cannot find the solution for it...

[vincent4443]

Now my app can shake already.. But I am not using list view any more. Now the new problem is appear....the (reading.x>12|| reading.x<-12) can use?

[rahulvala]

Change the values and then run again. see what happens.

[vincent4443]

I already change the value, but my app is still lagging on my phone when I shake too fast. When I use x>20|| x-20, the shake no action..so what is the maximum value ?

[rahulvala]

I don't know which value is suitable for your code,, trial and error, is the best option.

otherwise study this articles :

http://doc.qt.nokia.com/qtmobility-1.2/sensors-api.html
http://developer.qt.nokia.com/wiki/C...es_Sensors_API

regards,