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Can J2ME apps insert directly into native address book?

 
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Hi, I'm wondering how J2ME apps communicate with the device's native UI. For example, can J2ME apps insert information directly into a device's address book? Can J2ME use the sound tones (and ringers) already on the device?
I'm new to the J2ME world, so sorry if this question seems basic.
Thanks,
Coco
 
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Before the PDA optional package is implemented on your device, you have to rely on the vendor specific API to access the native clients. Some vendors provide such APIs, some do not.
 
Coco Lee
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So does this mean the device manufactures have a choice of implementing these "optional" packages or not?
 
Michael Yuan
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Originally posted by Coco Lee:
So does this mean the device manufactures have a choice of implementing these "optional" packages or not?


Yes. They can also choose to implement proprietary APIs. MIDP specifies the minimum set of APIs everybody has to implement.
I know it sounds like a lot of fragmentation. But that is what JSR 185 is for: It specifies a set of optional packages everyone has to implement in order to carry a certain logo.
 
Don't get me started about those stupid light bulbs.
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