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Physically it is a 1024圆00 7” screen and thus classified as “large”. The original Samsung Galaxy Tab is an interesting case. This places it into the bottom of the large size bucket.Ī typical 7” tablet has a 1024圆00 mdpi screen. The Dell Streak is a 800x480 mdpi screen. This places it into the xlarge screen bucket. The Xoom is a typical 10” tablet with a 1280x800 mdpi screen. Converting to mdpi (a 4/3 scaling factor) gives us 426dp x 320dp this matches the minimum size above for the small screen bucket. Here are some more examples of how this works with real screens:Ī QVGA screen is 320x240 ldpi. (Android does not currently support screens smaller than this.) Small screens are at least 426dp x 320dp. Normal screens are at least 470dp x 320dp. Large screens are at least 640dp x 480dp. Xlarge screens are at least 960dp x 720dp.
#SAMSUNG JAVA PHONE 2009 ANDROID#
Android 2.3 introduced a new bucket size “xlarge”, in preparation for the approximately-10” tablets (such as the Motorola Xoom) that Android 3.0 was designed to support. Devices that fall in the “large” bucket include the Dell Streak and original 7” Samsung Galaxy Tab. Screen-size BucketsĪndroid has included support for three screen-size “buckets” since 1.6, based on these “dp” units: “normal” is currently the most popular device format (originally 320x480, more recently higher-density 480x800) “small” is for smaller screens, and “large” is for “substantially larger” screens. The conversion factor from hdpi to mdpi in this case is 1.5, so for a developer's purposes, the device is 320x533 in dp's. A more recent phone might have physical-pixel dimensions of 480x800 but be a high-density device. In medium-density ("mdpi") screens, which correspond to the original Android phones, physical pixels are identical to dp's the devices’ dimensions are 320x480 in either scale. To remove the size/density calculations from the picture, the Android framework works wherever possible in terms of "dp" units, which are corrected for density. This is why the 320x480 screen on a G1 and 480x800 screen on a Droid are both the same screen size: the 480x800 screen has more pixels, but it is also higher density. These are interrelated: increase the resolution and density together, and size stays about the same. Resolution is the actual number of pixels available in the display, density is how many pixels appear within a constant area of the display, and size is the amount of physical space available for displaying your interface. Understanding Screen Densities and the “dp”
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Of course, the official write-up on Supporting Multiple Screens is also required reading for people working in this space. We also provide our recommendations for how you can do layout selection in apps targeted at Android 3.2 and higher in a way that should allow you to support the maximum number of device geometries with the minimum amount of effort. If you know all that stuff, you can skip down to “Introducing Numeric Selectors” to read about what’s new. We start by discussing the why and how of Android “dp” arithmetic, and the finer points of the screen-size buckets. This release also offers several new APIs to simplify developers’ work in adjusting to different screen sizes. One important result is better support for a new size of screen what is typically called a “7-inch” tablet.
#SAMSUNG JAVA PHONE 2009 UPDATE#
There are various ways to update the Software of your Mobile device, such as Firmware Over-The-Air (FOTA), Kies or Samsung Smart Switch.Android 3.2 includes new tools for supporting devices with a wide range of screen sizes. You can find your current version by going to Settings, then About device or About phone
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You'll often see operating system updates referred to by their name rather than the version number.
#SAMSUNG JAVA PHONE 2009 CODE#
Please note that the type and version of update available will depend on your model.Īndroid code names are named after sweets and treats, with major new versions generally released annually. Software updates fall into two general types: operating system updates and security updates. Software upgrades may be available for your device and will enhance functionality and security. However, updates are device dependant and not every Samsung device will run the latest Android version. If you are having difficulty with your device, you should always check for updates, as a fix for the problem may have been released. Operating system updates are released periodically for your device.