How to define dimens xml for every different screen size in android

Question

When supporting different screen sizes  densities  in Android often the focus is on creating different layouts for every possible screen  I E    ldpi mdpi hdpi xhdpi xxhdpi xxxhdpi   I designed a layout for an xhdpi screen as a reference  and defined it s dimensions in dimens xml  Now I want to give support it to every possible screen size  How can I do that   As far as I know  I can use this tool to figure out the proper dimens xml for other screen sizes and add it to my project  Is this the right way to do it in my situation   Another question  do I only need to create dimens xml for above screen dimensions  If yes then what is w820dp   Thanks for your help  I need to support phones only  not tablets or other devices

User · Answer

Use Scalable DP

Although making a different layout for different screen sizes is theoretically a good idea, it can get very difficult to accommodate for all screen dimensions, and pixel densities. Having over 20+ different dimens.xml files as suggested in the above answers, is not easy to manage at all.

How To Use:

To use sdp:

Include implementation 'com.intuit.sdp:sdp-android:1.0.5' in your build.gradle,

Replace any dp value such as 50dp with a @dimen/50_sdp like so:

<TextView
 android:layout_width="@dimen/_50sdp"
 android:layout_height="@dimen/_50sdp"
 android:text="Hello World!" />

How It Works:

sdp scales with the screen size because it is essentially a huge list of different dimens.xml for every possible dp value.

See It In Action:

Here it is on three devices with widely differing screen dimensions, and densities:

Note that the sdp size unit calculation includes some approximation due to some performance and usability constraints.

User · Answer

You can put dimens xml in  1  values   2  values-hdpi  3  values-xhdpi  4  values-xxhdpi  And give different sizes in dimens xml within corresponding folders according to densities

User · Answer

You have to create a different values folder for different screens and put dimens xml file according to densities   1  values  2  values-hdpi  320x480  480x800   3  values-large-hdpi  600x1024   4  values-xlarge  720x1280  768x1280  800x1280  Nexus7  Nexus10   5  values-sw480dp  5 1  WVGA screen   6  values-xhdpi  Nexus4   Galaxy Nexus

User · Answer

You have to create Different values folder for different screens   Like   values-sw720dp          10 1    tablet 1280x800 mdpi  values-sw600dp          7 0     tablet 1024x600 mdpi  values-sw480dp          5 4     480x854 mdpi  values-sw480dp          5 1     480x800 mdpi   values-xxhdpi           5 5   1080x1920 xxhdpi values-xxxhdpi           5 5  1440x2560 xxxhdpi  values-xhdpi            4 7      1280x720 xhdpi  values-xhdpi            4 65     720x1280 xhdpi   values-hdpi             4 0    480x800 hdpi values-hdpi             3 7    480x854 hdpi  values-mdpi             3 2    320x480 mdpi  values-ldpi             3 4    240x432 ldpi values-ldpi             3 3    240x400 ldpi values-ldpi             2 7    240x320 ldpi     For more information you may visit here     Different values folders in android      http   android-developers blogspot in 2011 07 new-tools-for-managing-screen-sizes html   Edited  By  humblerookie  You can make use of Android Studio plugin called Dimenify to auto generate dimension values for other pixel buckets based on custom scale factors  Its still in beta  be sure to notify any issues suggestions you come across to the developer

User · Answer

we  want to see the changes of required view size in different screens   We need to create a different values folders for different screens and put dimens xml file based on screen densities   I have taken one TextView and observed the changes when i changed dimens xml in different values folders   Please follow the process  normal - xhdpi   dimens xml  The below devices can change the sizes of screens when we change the normal - xhdpi   dimens xml  nexus 5X   5 2    1080   1920   420dpi    nexus 6P   5 7    1440   2560    560dpi   nexus 6   6 0    1440   2560    560dpi   nexus 5  5 0   1080 1920    xxhdpi   nexus 4  4 7   768   1280    xhdpi   Galaxy nexus  4 7   720   1280    xhdpi   4 65  720p   720   1280   xhdpi    4 7  WXGA   1280    720   Xhdpi    Xlarge - xhdpi    dimens xml  The below devices can change the sizes of screens when we change the Xlarge - xhdpi    dimens xml  nexus 9   8 9   2048   1556    xhdpi   nexus 10  10 1   2560   1600   xhdpi   large - xhdpi    dimens xml  The below devices can change the sizes of screens when we change the  large - xhdpi    dimens xml  nexus 7   7 0   1200   1920  xhdpi   nexus 7  2012   7 0   800   1280   tvdpi   The below screens are visible in   Search Generic Phones and Tablets    large - mdpi   dimens xml  The below devices can change the sizes of screens when we change the  large - mdpi    dimens xml  5 1  WVGA   480   800   mdpi    5 4  FWVGA   480   854   mdpi    7 0  WSVGA  Tablet    1024   600   mdpi    normal - hdpi    dimens xml  The below devices can change the sizes of screens when we change the  normal - hdpi    dimens xml  nexus s   4 0   480   800   hdpi    nexus one   3 7   480   800  hdpi   small - ldpi    dimens xml  The below devices can change the sizes of screens when we change the  small - ldpi   dimens xml  2 7  QVGA Slider   240   320   ldpi    2 7  QVGA   240   320   ldpi    xlarge - mdpi   dimens xml  The below devices can change the sizes of screens when we change the  xlarge - mdpi    dimens xml  10 1  WXGA   tABLET    1280   800   MDPI     normal - ldpi   dimens xml  The below devices can change the sizes of screens when we change the  normal - ldpi     dimens xml  3 3  WQVGA   240   400   LDPI     3 4  WQVGA   240   432   LDPI     normal - hdpi   dimens xml  The below devices can change the sizes of screens when we change the  normal - hdpi      dimens xml  4 0  WVGA   480   800   hdpi    3 7  WVGA   480    800   hdpi    3 7  FWVGA  Slider   480    854   hdpi    normal - mdpi   dimens xml  The below devices can change the sizes of screens when we change the  normal - mdpi      dimens xml  3 2  HVGA Slider   ADP1     320   480   MDPI      3 2  QVGA   ADP2     320   480   MDPI

User · Answer

There are nice libraries which will handle everything and reduce your pain  For using it  just add two dependencies in gradle    implementation  com intuit ssp ssp-android 1 0 5   implementation  com intuit sdp sdp-android 1 0 5    After that  use dimens like this           android layout marginTop   dimen  80sdp

User · Answer

I ve uploaded a simple java program which takes your project location and the dimension file you want as input  Based on that  it would output the corresponding dimension file in the console  Here s the link to it   https   github com akeshwar Dimens-for-different-screens-in-Android blob master Main java  Here s the full code for the reference   public class Main                    You can change your factors here  The current factors are in accordance with the official documentation              private static final double LDPI FACTOR   0 375      private static final double MDPI FACTOR   0 5      private static final double HDPI FACTOR   0 75      private static final double XHDPI FACTOR   1 0      private static final double XXHDPI FACTOR   1 5      private static final double XXXHDPI FACTOR   2 0       private static double factor       public static void main String   args  throws IOException             Scanner in   new Scanner System in           System out println  Enter the location of the project module            String projectPath   in nextLine             System out println  Which of the following dimension file do you want  n1  ldpi  n2  mdpi  n3  hdpi  n4  xhdpi  n5  xxhdpi  n6  xxxhdpi             int dimenType   in nextInt             switch  dimenType                case 1  factor   LDPI FACTOR                  break              case 2  factor   MDPI FACTOR                  break              case 3  factor   HDPI FACTOR                  break              case 4  factor   XHDPI FACTOR                  break              case 5  factor   XXHDPI FACTOR                  break              case 6  factor   XXXHDPI FACTOR                  break              default                  factor   1 0                       full path     home akeshwar android-sat-bothIncluded-notintegrated code tpr-5-5-9 princetonReview src main res values dimens xml            location of the project or module     home akeshwar android-sat-bothIncluded-notintegrated code tpr-5-5-9 princetonReview                            In case there is some I O exception with the file  you can directly copy-paste the full path to the file here                      String fullPath   projectPath     src main res values dimens xml            FileInputStream fstream   new FileInputStream fullPath           BufferedReader br   new BufferedReader new InputStreamReader fstream             String strLine           while   strLine   br readLine       null                  modifyLine strLine                     br close                private static void modifyLine String line                            Well  this is how I m detecting if the line has some dimension value or not                      if line contains  p lt                    int endIndex   line indexOf  p lt                     since indexOf returns the first instance of the occurring string  And  the actual dimension would follow after the first   gt   in the screen             int begIndex   line indexOf   gt                  String prefix   line substring 0  begIndex 1               String root   line substring begIndex 1  endIndex-1               String suffix   line substring endIndex-1 line length                                      Now  we have the root  We can use it to create different dimensions  Root is simply the dimension number                               double dimens   Double parseDouble root               dimens   dimens factor 1000              dimens    double   int dimens               dimens   dimens 1000              root   dimens                    System out println prefix          root         suffix                        System out println line

User · Answer

In case you want to view more  Here s a link for a list of devices  tablet  mobile  watches   including watch chromebook  windows and mac  Here you can find the density  dimensions  and etc  Just based it in here  it s a good resource if your using an emulator too     If you click a specific item  it will show more details in the right side     Since it s Android   I will post related to it         It s better if you save a copy of the web  To view it offline

User · Answer

Android 3 2 introduces a new approach to screen sizes the numbers describing the screen size are all in    dp    units Mostly we can use  smallest width dp  the smallest width available for application layout in    dp    units  this is the smallest width dp that you will ever encounter in any rotation of the display   To create one right click on res     new     Android resource directory  From Available qualifiers window move Smallest Screen Width to Chosen qualifiers  In Screen width window just write the  dp  value starting from you would like Android Studio to use that dimens   Than change to Project view right click on your new created resource directory  new     Values resource file enter a new file name dimens xml and you are done

[android] How to define dimens.xml for every different screen size in android?

Use Scalable DP

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