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Developing BlackBerry Tablet Applications : Permissions and Configuration Settings

12/10/2012 6:13:24 PM
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1. Other Configuration Settings

When creating a new Flex Mobile application, there are a few additional settings you can choose to configure. These include Automatically reorient, Full screen, and Automatically scale application for different screen densities. Figure 1 shows these options.

Figure 1. Additional Configuration Settings



2. Automatically reorient

This option is set to true automatically unless you uncheck the box during your project creation. Setting this to true will allow the device to use its accelerometer to automatically switch between portrait and landscape.

This property can be edited at any time within the application’s configuration file. This setting can also be changed programmatically while the application is running. 

<autoOrients>false</autoOrients>

3. Full Screen

Checking this box during your project creation will force your application to launch in full-screen mode. By default, this is set to false.

This property can be edited at any time within the application’s configuration file. This setting can also be changed programmatically while the application is running. 

<fullScreen>false</fullScreen>

4. Automatically scale application for different screen densities

Checking this box will allow your application to automatically scale for different screen densities. It will also allow you to set the default applicationDPI, which will be written to the main application file. The options for this value are 160, 240, and 320.

<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
             xmlns:s="library://ns.adobe.com/flex/spark"
             applicationDPI="320">

5. Aspect Ratio

You have the option to force an application to run only in portrait or landscape mode. Uncommenting the <aspectRatio> node within the application’s XML configuration file and setting its value to either landscape or portrait can accomplish this. This setting can also be changed programmatically while the application is running. 

<aspectRatio>landscape</aspectRatio>
 
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