iOS SDK : Application Settings - The Settings Bundle (part 3) - PSMultiValueSpecifier

3. PSMultiValueSpecifier

The PSMultiValueSpecifier is for selecting one of many alternative choices. Table 3 summarizes the PSMultiValueSpecifier’s settings. Note that you create entries below the Values and Titles settings for each value and for each title.

Try This: Adding a PSMultiValueSpecifier

1. Return to MySettings in Xcode. Open the Root.plist in the editor.

2. Create an Item 2 below PreferenceSpecifiers and ensure its type is Dictionary.

3. Expand Item 2 and add six new child rows.

4. Change the first child row to have Type for the key, String for the type, and PSMultiValueSpecifier for the value (Figure 7).

   Figure 7. Root.plist with the PSMultiValueSpecifier added

   

5. Change the next child row to have Title for the key, String for the type, and Colors for the value.

6. Change the next child row to have DefaultValue for the key, String for the type, and blue for the value.

7. Change the next child row to have Key for the key, String for the type, and keyTwo for the value.

8. Change the next two child rows to have Titles and then Values for the key and Array for the type.

9. Expand Titles and then add three child rows to it. Do the same for Values (see Figure 7). Assign the three child Titles the values Red, Blue, and Orange. Assign the three child Values the values red, blue, and orange.

10. Save the .plist file.

11. Click Run. Navigate to the Settings application, and the new setting appears (Figure 8).

    Figure 8. Settings reflecting the new setting

    

4. PSToggleSwitchSpecifier

The PSToggleSwitchSpecifier is for selecting a Boolean value. The toggle switch displayed in the Settings application for this specifier is On or Off. Table 4 summarizes the PSToggleSwitchSpecifier’s settings.

Try This: Adding a PSToggleSwitchSpecifier

Note