×
Namespaces

Variants
Actions
(Difference between revisions)

Animated Moving Ball in Qt and Windows Phone

From Nokia Developer Wiki
Jump to: navigation, search
chintandave_er (Talk | contribs)
m (Chintandave er - - Introduction)
hamishwillee (Talk | contribs)
m (Hamishwillee - Bot update - Fix metadata etc)
Line 1: Line 1:
 
[[Category:Qt Quick]][[Category:Windows Phone]][[Category:Code Examples]][[Category:Code Snippet]][[Category:Porting]]
 
[[Category:Qt Quick]][[Category:Windows Phone]][[Category:Code Examples]][[Category:Code Snippet]][[Category:Porting]]
{{Abstract|This article demonstrates how to create an animated moving ball in Qt and WP7.}}
+
{{Abstract|This article demonstrates how to create an animated moving ball in Qt and WP7.}}
{{ArticleMetaData
+
{{ArticleMetaData <!-- v1.2 -->
|sourcecode= [[Media: MovingBallQML.zip]] [[Media: MovingBallWp7.zip]]<!-- Link to example source code e.g. [[Media:The Code Example ZIP.zip]] -->
+
|sourcecode= [[Media:MovingBallWp7.zip]] [[Media:MovingBallQML.zip]]  
 
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 
|installfile= <!-- Link to installation file (e.g. [[Media:The Installation File.sis]]) -->
 
|devices= N8(Nokia Belle), Windows Phone  <!-- Devices tested against - e.g. ''devices=N95, N8'') -->
 
|devices= N8(Nokia Belle), Windows Phone  <!-- Devices tested against - e.g. ''devices=N95, N8'') -->
Line 8: Line 8:
 
|platform= WP7.1, Symbian^3 OS  <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
 
|platform= WP7.1, Symbian^3 OS  <!-- Compatible platforms - e.g. Symbian^1 and later, Qt 4.6 and later -->
 
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 
|devicecompatability= <!-- Compatible devices e.g.: All* (must have internal GPS) -->
 +
|dependencies= <!-- Any other/external dependencies e.g.: Google Maps Api v1.0 -->
 
|signing= Self-Signed <!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
 
|signing= Self-Signed <!-- Signing requirements - empty or one of: Self-Signed, DevCert, Manufacturer -->
|capabilities=<!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
+
|capabilities= <!-- Capabilities required by the article/code example (e.g. Location, NetworkServices. -->
 
|keywords= Animation<!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
 
|keywords= Animation<!-- APIs, classes and methods (e.g. QSystemScreenSaver, QList, CBase -->
|id= <!-- Article Id (Knowledge base articles only) -->
+
|language= <!-- Language category code for non-English topics - e.g. Lang-Chinese -->
 +
|translated-by= <!-- [[User:XXXX]] -->
 +
|translated-from-title= <!-- Title only -->
 +
|translated-from-id= <!-- Id of translated revision -->
 +
|review-by= <!-- After re-review: [[User:username]] -->
 +
|review-timestamp= <!-- After re-review: YYYYMMDD -->
 +
|update-by= <!-- After significant update: [[User:username]]-->
 +
|update-timestamp= <!-- After significant update: YYYYMMDD -->
 
|creationdate= 14th April, 2012<!-- Format YYYYMMDD -->
 
|creationdate= 14th April, 2012<!-- Format YYYYMMDD -->
|author= [[User:somnathbanik]] <!-- Display as link [[User:username]] -->
+
|author= [[User:Somnathbanik]]
 
}}
 
}}
 
==Introduction==
 
==Introduction==
This is a very basis article for beginners to show how to create an animated moving ball in both Qt and WP7. When user clicks on the device screen the ball moves to the clicked area.  
+
This is a very basis article for beginners to show how to create an animated moving ball in both Qt and WP7. When user clicks on the device screen the ball moves to the clicked area.  
  
 
{| class="wikitable"
 
{| class="wikitable"
Line 23: Line 31:
 
|-
 
|-
 
|  
 
|  
[[Image: MovingBallQML.png|thumb|201px| Animated moving ball in Qt]]  
+
[[File: MovingBallQML.png|thumb|201px| Animated moving ball in Qt]]  
 
||  
 
||  
[[Image: MovingBallWp7.png|thumb|201px| Animated moving ball in WP7 ]]
+
[[File: MovingBallWp7.png|thumb|201px| Animated moving ball in WP7 ]]
  
 
|-
 
|-
Line 87: Line 95:
 
</code>
 
</code>
  
When user clicks on any place of the device screen it catches the ''x'' and ''y'' coordinates of the point and updates the position of the circle.
+
When user clicks on any place of the device screen it catches the ''x'' and ''y'' coordinates of the point and updates the position of the circle.
  
 
<code cpp>
 
<code cpp>
Line 105: Line 113:
  
 
==Source Code==
 
==Source Code==
*The full source code of Qt example is available here: [[File: MovingBallQML.zip]]
+
*The full source code of Qt example is available here: [[File: MovingBallQML.zip]]
*The full source code of WP7 example is available here: [[File: MovingBallWp7.zip]]
+
*The full source code of WP7 example is available here: [[File: MovingBallWp7.zip]]

Revision as of 03:23, 24 April 2012

This article demonstrates how to create an animated moving ball in Qt and WP7.

WP Metro Icon Porting.png
SignpostIcon XAML 40.png
WP Metro Icon WP8.png
SignpostIcon WP7 70px.png
Article Metadata
Code ExampleTested with
Devices(s): N8(Nokia Belle), Windows Phone
Compatibility
Platform(s): WP7.1, Symbian^3 OS
Windows Phone 8
Windows Phone 7.5
Platform Security
Signing Required: Self-Signed
Article
Keywords: Animation
Created: somnathbanik (14 Apr 2014)
Last edited: hamishwillee (24 Apr 2012)

Contents

Introduction

This is a very basis article for beginners to show how to create an animated moving ball in both Qt and WP7. When user clicks on the device screen the ball moves to the clicked area.

Qt Windows Phone
Animated moving ball in Qt
Animated moving ball in WP7
Example of Qt Example of WP


Note.pngNote: The animation is not clear in these images, to get the actual effect please try it on device.

Implementation

Let’s create an empty project for both Qt and WP7. First we will work on Qt project and then will move on to WP7 project. We will create a circular area and when user clicks on the device screen we take the x and y coordinates of that point and change the ball position to that point with an animated behavior.

Qt Project (MainPage.qml)

We create a Rectangle with a certain radius to make it a circle.

Rectangle {
id: rectRed
width: 20; height: 20
radius: 10
color: "green"
}

To change the x and y coordinates of the circle in an animated manner we use SmoothedAnimation Element.

Behavior on x { SmoothedAnimation { velocity: 200 } }
Behavior on y { SmoothedAnimation { velocity: 200 } }

When user clicks on any place of the device screen we catch the x and y coordinates and update the position of the circle.

MouseArea{
anchors.fill:parent
onClicked:
{
rectRed.x = mouseX
rectRed.y = mouseY
}
}

This will give a feeling of linear animated behavior of the motion of the circle.

WP7 Project (MainPage.xaml)

In WP7 we draw a Canvas and add a circle inside it using EllipseGeometry.

<EllipseGeometry x:Name="myCircle"    Center="200,100" RadiusX="15" RadiusY="15" />

We use Storyboard to animate the ball.

<Storyboard x:Name="myStoryboard"> 
<PointAnimation
x:Name="myAnimation"
Storyboard.TargetProperty="Center"
Storyboard.TargetName="myCircle"
Duration="0:0:0.5"/>
</Storyboard>

When user clicks on any place of the device screen it catches the x and y coordinates of the point and updates the position of the circle.

double pointX = e.GetPosition(null).X;
double pointY = e.GetPosition(null).Y;
Point myPoint = new Point();
myPoint.X = pointX;
myPoint.Y = pointY;
myAnimation.To = myPoint;
myStoryboard.Begin();

This will give a similar animated behavior like Qt.

Summary

This article is mainly for beginners who want to have an idea about basic animation in both Qt and WP7.

Source Code

172 page views in the last 30 days.

Was this page helpful?

Your feedback about this content is important. Let us know what you think.

 

Thank you!

We appreciate your feedback.

×