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Ui guide for android application design for phones and tabs
1. UI Guide for Android Application Design for
Phones and Tabs
As the smartphone segment in the mobile industry is experiencing huge demand for
Android phones and tablets across various geographies, it is vital for developers to pay
special attention to the Android application design and cater to different sizes of screen
and display resolutions.
Android app developers are expected to build applications which are device
independent and function seamlessly over a wide range of android devices. Let us
address certain key concerns an app developer faces and offer tips and solutions for
Android development.
UI Design
UI design or User Interface design plays a crucial role in determining the success of an
Android app. Your app is only considered flawless when the UI design can adapt to
different Android devices. To build an effective UI design, it is important for app
developers to segregate android mobile devices into categories or buckets of mobile
devices on the basis of their screen sizes and display.
2. Screen Density
Do note that though certain mobile devices have the same screen size, they may differ
in screen density. So build your Android app accordingly. Screen density is the screen
resolution which is measured in DPI or dots per inch. It is insufficient for a UI designer to
categorize mobile devices solely on the basis of their screen sizes, but they must also
classify them based on screen densities.
Density-independent Pixels
To figure out the effect of multiple screen densities on a mobile device, consider a 35-
pixel button, which on a low-end Density-independent Pixels (DPI) device
appears relatively good. But the same button can appear minuscule on device with
high-end DPI. To prevent this disparity, the Android Application Design must have a
DP unit of measurement rather than standard pixels. This will help in making the images
look standardized on a vast range of Android devices, irrespective of the varying screen
densities. UI designers must also utilize images that can adapt to vast-ranging screen
densities.
Alternative Resource Folders
It is recommended to build alternative resource folders for layouts and images to
support the Android OS in loading relevant images based on the screen resolution and
density of the mobile device. To make sure that images seem standard on different
devices you should establish alternate drawable resource folders for varying screen
densities, keeping MDPI (Medium DPI) as the base density.
Original Source: http://www.giikers.com/article/67952/ui-guide-for-android-application-
design-for-phones-and-tabs/