Apps initially run in small screen What must do to run in bigger display

[lse123]

After run an Android App defined in main.xml in visual layout in Eclipse, as 3.7in HVGA, What must do to run in bigger display? I shutdown emulator, and tried modify 3.7in but display is the same, is emulator needed special shutdown? Is needed change and AVD used?

 

[lse123]

how appear in eclipse adt, line numbers in code view?

 

[x3manaic]

i think this is what you are talking about. see attachment