@ Rakesh1995
If you can really develop a calendar app, can you look at how it was implemented under Nokia's old Symbian S60v3 or 5.
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Under that, your current or next appt was listed in the large space below the month view calendar where you create it.
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You also had various views available to you to chose and create appt's in Personal, Anniv or as to-do's which can also be displayed as default calendar displays.
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Don' tknow why this last screen snap is there.