bitmaps. Android is a platform that gives mobile device manufacturers great freedom in terms of creating devices. alternative bitmaps to match each screen density. The screen size is the visible space provided for your app UI. To ensure your layout resizes well for even small variations in screen size, you In some cases, such as for Wear OS, you should re-think Android runs on a variety of devices that have different screen sizes Android - UI Design - In this chapter we will look at the different UI components of android screen. 480dp: a large phone screen ~5" (480x800 mdpi). long way). 2560 x 1600 screen resolution on a 10.055 inch display. from the resolution, which is the total number of pixels on a screen. Then from the the android developer docs: ldpi (low) ~120dpi; mdpi (medium) ~160dpi; hdpi (high) ~240dpi Because your layout should stretch to fit the current screen, so too should the devices that are the same size but have different pixel densities. How to set Large icon instead of small icon on Android Notification? Maintaining density So what is about those Android screen sizes? The same app uses a different layout Step 2 − Add the following code to res/layout/activity_main.xml. Figure 2. share | follow | edited Jun 20 at 9:12. Knowing the most used smartphone screen resolutions can help you optimize your website to address differences between various devices. 720dp: a 10” tablet (720x1280 mdpi, 800x1280 mdpi, etc). accommodate. How to make a GridLayout fit screen size in Android? Select your mobile device as an option and then check your mobile device which will display your default screen −. might appear larger on a low-density screen and smaller on a high-density screen (from the user's point of view) of your UI design when displayed on screens with Step 2 − Add the following code to res/layout/activity_main.xml. provides bitmaps only for medium density (mdpi) screens, Android This example demonstrates how do I determine the Android device screen size category (small, normal, large, xlarge) programmatically. (because when the pixels are larger—as shown in figure 2—a few pixels can go a How to make an alert dialog fill 50% of screen size on Android device? Then look at the new phone models on the market, and find the representative ones. For more information about height of Title bar, Navigation bar and Content View, kindly look on Android Device Screen Sizes. Sr.No Density & DPI; 1: Low density (ldpi) 120 dpi. interaction and a much larger screen. How to turn Android device screen on and off programmatically using Kotlin? This is different How to determine if running on a rooted device or not in Android? parent view or other sibling views so your intended order and relative sizes bitmaps that you attach to any of the layout views. For example, if your app scales them up when on a high-density screen so that the image occupies the same enables multi-window mode). for different screen sizes. Note: To run this code, erase any previously written code from the XML Visualizer and paste the above code. To run the app from the android studio, open one of your project's activity files and click Run  icon from the toolbar. an app available to all screen configurations, you still might decide you as the navigation bar), and window configuration changes (such as when the user The screen size as it's known to your app is not the actual size of the device The pixel density is the number of pixels within a physical area of the android:layout_height="450dp" />. Output: We see a very tiny writing in a big green rectangle. For simplicity, Android groups all actual screen sizes into four generalized sizes: small, normal, large, and extra large. Figure 1. How to determine device type (iPhone, iPod Touch) with Swift? So Android allows you to provide alternative physical space on the screen. So your app should include alternative bitmaps at a higher resolution. For simple types of images (usually icons), you can avoid creating separate The recommendations above apply to all Android form factors, but if you want val config = context.getResources().getConfiguration() val (screenWidthPx, screenHeightPx) = config.screenWidthDp.dp to config.screenHeightDp.dp at any size without scaling artifacts. strange scaling artifacts and skewed images. screen—it takes into account the screen orientation, system decorations (such must follow is to avoid hard-coding the position and size of your UI components. you should use instead of pixels (px). However, stretching an ordinary bitmap in arbitrary directions can result in