The question of developing an application that supports a
large number of screen resolutions always gets an edge from developers under
Android. As the number of different devices has already exceeded 1,000. In this
article I will talk about one of the ways to support different resolutions in
the application.
What is used
At the
heart of my method of optimization is such a characteristic screen as size.
Now, the following qualifiers:
- Small: used for resources with small screens (mostly 240x320);
- Normal: used for resources with the normal screen (mostly 480x800);
- Large: is used for resources with larger screens (mostly 600x1024 or tablet 7");
- Xlarge: used for resources with very large screens (mostly 1280x800 and above or tablets from 9").
If it is
possible to use the Nine-Patch image, it is best to use them.
Use
Font sizes
and items we store in the resource file dimen.xml.
Font size:
<dimen name="txt_size_12">12sp</dimen>
Dimensions
of the elements:
<dimen
name="image_width_50">50dp</dimen>
For the way
we use these dimensions in xml used qualifier @dimen.
For example:
android:textSize="@dimen/txt_size_12"
or
android:layout_width="@dimen/image_width_50"
Optimization
method is to create and match sizes for different screens. You can use
emulators with different resolutions. Restriction devices in Google Play
Visibility of your application for different
screen sizes can be limited by using the following code in AndroidManifest:
<supports-screens android:smallScreens="true"
android:normalScreens="true"
android:largeScreens="true"
android:xlargeScreens="true"
android:anyDensity="true"/>
Related Links
- Google: Supporting Multiple Screens
- Google: Dashboards
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