Input buttons too small on tablets

[CodeMonkey90]

SudoQ works fine on Android tablets, but the input area should be wider. All buttons are stretched vertically and easy to miss.

[HeikoKlare]

I'm working on that and it's almost done.
We should also optimize the other layouts for tablets: splash screen and the menus look pretty strange there.

[HeikoKlare]

As discussed we will have buttons sharing the whole space of a table row/column now instead of having one empty table slot. My current problem: Is there a way to implement a vertical table? In portrait mode there is to be one column of 3 and one of 2 buttons which is not possible with an ordinary table. The parameter android:orientation="vertical" does not seem to work...

The new layout will give procentual space to the input area (instead of fixed 130 dip now) which causes pretty big buttons on tablets, so we will have to add new high-resolution images for the buttons.

[HeikoKlare]

Main issue is solved, the input area scales now depending on the screen size instead of being fixed size and thus too small for tablets.
This generalization is not very adequate for all devices, we should seperate the layout into a handheld- and a tablet-layout as recommended by Android-Developers.