I know it depends on the device but I am having a hard time locating GUI element sizes in regards to browsers, keyboards, etc. etc. for Apple and Android devices. I have searched through Apple's developer documentation but nothing related to size and I am new to Android design so I am unfamiliar with any documentation that would mention anything.
So my question is: Does a document or site exist that indicate what keyboards, browsers, and the like use in pixel dimension size for devices?
Keyboard example for iPad landscape: