Unable to create UIBackgroundModes key in Info.plist for iOS4

Question

I have an audio application which works great for iPhone 3.1.x versions.

I am trying to upgrade it to iOS4.0 to work in multitasking en

Answer 1

Be sure that if you create the UIBackgroundModes item in Xcode (not by editing the XML manually) that you create the new key as type ARRAY, then add a new item (it will appear as "Item 0" by default) with a value of "audio". If you simply create a string key with value "audio", it will not work.

Answer 2

Re Woodmantech's answer: Xcode 3.2 changed the nomenclature a bit when adding this key in Xcode. The key is called "Required background modes" and Item 0 should be set to "App plays audio." Both are available through the GUI dropdown menu

Answer 3

You can add the key manually by edit the .plist file

    <key>UIBackgroundModes</key>
    <array>
            <string>audio</string>
    </array>