image size drawable-hdpi ldpi mdpi xhdpi

Question

Study android  now I ve some images to put into drawable dirs  hdpi ldpi mdpi xhdpi   I read a lot but again I don t understand  Which size should be an image for every directories

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Not just tab icons  notification and launcher lives an app  I was confused about the sizes of the other icons used for different situations in the app   I m using 32px mdpi  Action Bar icons  dimensions and I cannot say if it would be correct

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low dpi is 0 75x dimensions of medium dpi high dpi is 1 5x dimensions of medium dpi extra high dpi is 2x dimensinons of medium dpi  It s a good practice to make all the images in vector based format so you can resize them easily using a vector design software like Illustrator etc

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Tablets supports tvdpi and for that scaling factor is 1 33 times dimensions of medium dpi      ldpi   mdpi   tvdpi   hdpi   xhdpi   xxhdpi   xxxhdpi     0 75   1      1 33    1 5    2       3        4   This means that if you generate a 400x400 image for xxxhdpi devices  you should generate the same resource in 300x300 for xxhdpi  200x200 for xhdpi  133x133 for tvdpi  150x150 for hdpi  100x100 for mdpi  and 75x75 for ldpi devices

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See the image for reference  -  Soruce  - Android Studio-Image Assets option and Android Office Site

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Hope this will help     mdpi is the reference density -- that is  1 px on an mdpi display is equal to 1 dip  The ratio for asset scaling is   ldpi   mdpi   hdpi   xhdpi   xxhdpi   xxxhdpi 0 75   1      1 5    2       3        4   Although you don t really need to worry about tvdpi unless you re developing specifically for Google TV or the original Nexus 7 -- but even Google recommends simply using hdpi assets  You probably don t need to worry about xxhdpi either  although it never hurts  and at least the launcher icon should be provided at xxhdpi   and xxxhdpi is just a constant in the source code right now  no devices use it  nor do I expect any to for a while  if ever   so it s safe to ignore as well   What this means is if you re doing a 48dip image and plan to support up to xhdpi resolution  you should start with a 96px image  144px if you want native assets for xxhdpi  and make the following images for the densities   ldpi      mdpi      hdpi      xhdpi       xxhdpi      xxxhdpi 36 x 36   48 x 48   72 x 72   96 x 96     144 x 144   192 x 192   And these should display at roughly the same size on any device  provided you ve placed these in density-specific folders  e g  drawable-xhdpi  drawable-hdpi  etc    For reference  the pixel densities for these are   ldpi    mdpi    hdpi    xhdpi    xxhdpi    xxxhdpi 120     160     240     320      480       640

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As of Octoer 2020  the dimensions for Launcher  ActionBar Tab and Notification icons are   A very good online tool to generate launcher icons   https   romannurik github io AndroidAssetStudio icons-launcher html

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I have a full explanation already posted here   Basically  General guidelines for designing images are   ldpi is 0 75x dimensions of mdpi hdpi is 1 5x dimensions of mdpi xhdpi is 2x dimensinons of mdpi   Usually  I design mdpi images for a 320x480 screen and then multiply the dimensions as per the above rules to get images for other resolutions   Please refer to the full explanation for a more detailed answer

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MDPI - 32px HDPI - 48px XHDPI- 64px   This Cheat Sheet might be handy for you  check the image  -

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you can use Android Asset in android studio   and android Asset will give you image in this size as a drawable and the application will automatically use the size based on screen of device or emulate

[android] image size (drawable-hdpi/ldpi/mdpi/xhdpi)

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