What is the most flexible layout?

What is the best layout to use to support the app on different devices (Size of screen)?

EDIT

I am not just talking about resizing the layout, obviously the 开发者_如何学PythonOS does that automatically. I am talking about repositioning the objects in my layout.

by repositioning I mean moving the objects according to the size of the screen. For instance i created my layout for a larger screen which looks great, but when i run the app on a smaller device (smaller screen) some of my User Interface elements were out of the bound of my screen.

There is no "best" layout. Almost all types of layouts will scale to different devices (Android is designed around this concept) other than AbsoluteLayout, which is deprecated anyway.

LinearLayout is best if you just have a row (horizontal or vertical) of content to insert. Using values such as dip values, fill_parent, or wrap_content will automatically adjust themselves to their content or screen size.

RelativeLayout, as Vladimir pointed out, is best for layouts where views are positioned relative to other objects within the layout. For instance, a TextView positioned beside a "Submit" button, is a common example.

FrameLayout is sort of a replacement for AbsoluteLayout; you can layer objects on top of each other, just specifying margin offsets from the sides of the frame.

TableLayout is, as it sounds, a layout for Table style design. You can have multiple rows and columns, and set certain columns to stretch to fit the size of the display, so that no matter the screen size, the layout fits as you designed.

EDIT: If you're having objects falling outside of the screen area, try wrapping your root layout in a <ScrollView>. This will allow the layout to be scrollable.

e.g.

<ScrollView
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <RelativeLayout
        ..... //and so on
    </RelativeLayout>
</ScrollView>

All Layouts are flexible in terms of size... the rule is: don't use AbsoluteLayout. That's all.

And with regards to the repositioning concerns... well, use always dips instead of pixels and you are good to go. Again, don't use AbsoluteLayout, the rest of the layouts should work fine on every screen size. Sometimes you can anticipate those "disappearing acts" by wrapping your layout in a ScrollView.

RelativeLayout is what you should be looking at. It easily resizes the elements relative to their neighbors. Just make sure to include drawables for all resolutions and densities

LinearLayout,RelativeLayout,FrameLayout are import Layouts....