Android Question How to make my App fit all screen sizes for all Android mobiles?

Have you read
This thread Supporting multiple screens - tips and best practices ?
And these chapters in the Beginner's Guide ?
5 Screen sizes and resolutions
8.9 Designer Scripts
8.10 Anchors
8.11 AutoScale

IslamQabel,
Interesting that you suggest using a scrollview. Whilst Klaus gives a link to a page giving a solution, or many solutions, I have adopted the much simpler 'norm' of using ListViews for all menus - In particular I use a 'TwoLinesAndBitmap' for all menus - To me, it offers a simple, but efficient, way of offering auto-scaling menus, with some degree of configuration; They can have as many images as you require to indicate the function, the first line the main description of the menu item and the second line a little additional information - It may not be the most exciting way to present a menu but it works and it is simple to implement.
As ever, with Android, and B4A, there are many ways to implement menus and you have to work out how much effort you are prepared to put in to get the desired output.

Good luck,
Douglas

Thanks Douglas...
Actually, I was thinking about using Scroll View....The idea is designing your App for Smallest size of screens and in the layout you adjust the dimensions of scroll view for the largest size of screens......I am imagining that when you use 2.8" phone ..you will use scroll to reach all objects in the screen.....and movement distance will be decreased as the size of screen increase....till No movement for 10" screen for example.......I did not try it but i will apply it..... but unfortunately, i have only 3.7" screen phone.......so Do you think that it good idea or not?

IslamQabel,
Yes, on a small screen you might only see 5 menu entries and have to scroll for the rest, while on a big screen all might be visible. One of the reasons that I use this format is that it easily allows a dynamic menu system I.e. a user's most used menu items can be presented in priority.
I'll send you an email later with instructions on how to download one ofy apps.
Douglas

So you think that the idea is correct?......
Ok thanks for help and waiting for your example

You are thinking in wrong terms. Don't think of the physical screen size. Be conscious of the Pixel dimensions and Pixel Density.

See here : http://www.b4x.com/android/forum/threads/supporting-multiple-screens-tips-and-best-practices.17647/ then maybe come back with questions.

IslamQabel,
Dynamic Menus and ListViews work for me - Whether it is correct for you, only you can decide. Every member of this forum will, no doubt, have different thought how to do it - no one is right, just a possibility! I have started a conversation within this forum with further details as I couldn't find your email address.

Douglas