IPhone: Missed Calls icon

Anybody knows if exist any way to show the phone calls icons (generated, received and missed calls) from the standard SDK, like the iphone phone calls application.

How do I get the android icons to change state (highlights)?

I am using the Android SDK icon-button for refresh (ic_menu_refresh) in a widget and 开发者_高级运维I need to change the selection state when it is pressed.How is this done?Do I define an XML for the

How do I display a standard windows error icon for a custom exception handler?

As the title suggests, I just want to display a standard windows error icon for a custom exception handler. What the easiest way 开发者_StackOverflowto achieve this using WPF?

遥控器是如何控制电视机的？？