Support different screen size

1.Avoid Hardcoding layout size

To ensure that your layout is flexible and adapts to different screen sizes, you should use "wrap_content" or "match_parent" for the width and height of most view components, instead of hard-coded sizes.

"wrap_content" tells the view to set its size to whatever is necessary to fit the content within that view.

"match_parent" makes the view expand to as much as possible within the parent view.

2.Create Alternative layout

that supports for different screen size such as

res/layout/main_activity.xml                # For handsets
res/layout-land/main_activity.xml           # For handsets in landscape
res/layout-sw600dp/main_activity.xml        # For 7” tablets
res/layout-sw600dp-land/main_activity.xml   # For 7” tablets in landscape

3.Create stretchable nine-patch bitmaps

If you use a bitmap as the background in a view that changes size, you will notice Android scales your images as the view grows or shrinks based on the size of the screen or content in the view. This often leads to visible blurring or other scaling artifacts. The solution is using nine-patch bitmaps, which are specially formatted PNG files that indicate which areas can and cannot be stretched.