What size of image should I put into drawable folder which is not drawable - ldpi, hpi, mdpi, xhdpi,xxhdpi, xxxhdpi? Or do I still need the drawable folder?
Yes, we still need drawable folder. All the folders you mentioned help android app to store different density images according to their density but when you access them into your app system will select the appropriate image based on the screen's API.
You could also follow documentation for further details here.
My problem is that I have to put identical copy of drawables for both drawable-mdpi and drawable-tvdpi.
Target devices density are tvdpi and xhdpi.
I want that device(xhdpi) fatch drawable resources from drawable-mdpi rather then drawable-tvdpi. For this what I need to do? And how? May be by custom build file it can be solved, but don't know how to do that?
Any time you reference #drawable/image, the system selects the appropriate bitmap based on the screen's density.
res/
drawable-xhdpi/
image.png
drawable-tvdpi/
image.png
So you need not do anything for the device to fetch the appropriate drawable resources .
Only thing is to add the image properly in the folder with standard pixel size .
I have 2 questions,
Okay so I have read online what sizes I should make my app icons for certain size phone screens. I know how to clarify what the launcher Icon is for my app with this code,
android:icon="#drawable/icon"
My app image is 72px x 72px. So its placed in the drawable-hdpi folder. Then I have a 36px x 36px icon for low density screens which is placed in the drawable-ldpi folder. So, for the 36px x 36px icon, should it be saved in the drawable-ldpi folder as icon? Cause wouldn't this cause an error because 2 files will be named the same thing?
Second question is my app launcher icon is saved in the drawable-hdpi folder. I read online that I also need an action bar and status bar icon, both have to be 36px x 36px. Where do I save these files at? In the drawable-hdpi file for high resolution screens I assume, but what do I name them? Do I have to clarify them in the android manifest file? How do I do so?
It would be better if you forget px when talking about Android drawables and think in dp instead. Launcher icon is 48x48dp, so (48px on mdpi, 72px on hdpi, etc.)
So, for the 36px x 36px icon, should it be saved in the drawable-ldpi folder as icon?
Yes.
Cause wouldn't this cause an error because 2 files will be named the same thing?
No. Android nicely handles same resource for different configurations even if you have folder with name drawable-large-land-fr-xhdpi or something like this. It tries to take the best match from its configuration.
I read online that I also need an action bar and status bar icon, both have to be 36px x 36px.
It's always good to provide source, which seems to be giving false statements. You can read on Android Developers that action bar icons have to be 32x32dp and notification 24x24dp. And you don't need them if you don't use them.
Where do I save these files at? In the drawable-hdpi file for high resolution screens I assume, but what do I name them?
You can name them anything you like (you don't need to name your app icon as icon.png).
Do I have to clarify them in the android manifest file?
No. You put them when you use them. For action bar icons that would probably be in menu.xml.
I want to change icons of the my application. I have created a 40x40 icon for this reason. But, I do not know how I can do that ? How can I change the icons of the application ?
And, How can I change the background image of the application ?
Go to AndroidManifest.xml, you will see this:
android:icon="#drawable/ic_launcher"
If you copy your own image to /res/drawable replace the standard icon. If you want to replace other images (wich are located in your code) you can do the same, first copy the image to /res/drawable and then replace the old image name with the new one.
You place your images in the res folders. Just copy and paste it. You can replace the current image by removing it and renaming your image to it's name. Otherwise jsut call the new image from the code
http://developer.android.com/guide/topics/resources/providing-resources.html
This online tool is very helpful in generated icons for different screen densities.
Once you've made the icon, just download it and put the icon in each drawable-X folder from the downloaded file into the corresponding folder in your project.
Then add android:icon="#drawable/filename" to your <application> tag.
For the application background, put the background image in your drawable folders in the required sizes, and then add android:background="#drawable/backgroundname" to the root layout of the Activity.
Other than that, if you prefer to manually resize your icons, here are the sizes for different densities (from here).
ldpi (120 dpi) - 36 x 36 px
mdpi (160 dpi) - 48 x 48 px
hdpi (240 dpi) - 72 x 72 px
xhdpi (320 dpi) - 96 x 96 px
How can I set an icon for my Android application?
If you intend on your application being available on a large range of devices, you should place your application icon into the different res/drawable... folders provided. In each of these folders, you should include a 48dp sized icon:
drawable-ldpi (120 dpi, Low density screen) - 36px x 36px
drawable-mdpi (160 dpi, Medium density screen) - 48px x 48px
drawable-hdpi (240 dpi, High density screen) - 72px x 72px
drawable-xhdpi (320 dpi, Extra-high density screen) - 96px x 96px
drawable-xxhdpi (480 dpi, Extra-extra-high density screen) - 144px x 144px
drawable-xxxhdpi (640 dpi, Extra-extra-extra-high density screen) - 192px x 192px
You may then define the icon in your AndroidManifest.xml file as such:
<application android:icon="#drawable/icon_name" android:label="#string/app_name" >
....
</application>
Add an application launcher icon with automatic sizing.
(Android studio)
Go to menu File* → New → Image Assets → select launcher icon → choose image file.
It will automatically re-size.
Done!
I found this tool the most useful.
Upload an image.
Download a zip.
Extract it into your project.
Done
https://romannurik.github.io/AndroidAssetStudio/
It's better to do this through Android Studio rather than the file browser as it updates all icon files with the correct resolution for each.
To do so go to menu File → New → Image Asset. This will open a new dialogue and then make sure Launcher Icons is selected (Which it is by default) and then browse to the directory of your icon (it doesn't have to be in the project resources) and then once selected make sure other settings are to your liking and hit done.
Now all resolutions are saved into their respective folders, and you don't have to worry about copying it yourself or using tools, etc.
Don't forget "Shape - none" for a transparent background.
Please don't edit my answer without asking.
Put your images in mipmap folder and set in manifest file...
like as
<application android:icon="#mipmap/icon" android:label="#string/app_name" >
....
</application>
App Folder Directory :
Icon Size & Format :
Place your images in drawables folder under either of the three and set it like this.
Code
<application android:icon="#drawable/your_icon" >
....
</application>
Right click your project, go to New > Other > Android > Android Icon Set
Then follow the instructions on the Wizard
1-Create Your icon in Photoshop Or Coreldraw by size 256*256
note that use PNG file format if you want to have a transparent icon
2-Upload Your icon in https://romannurik.github.io/AndroidAssetStudio/icons-launcher.html
3-Set your setting on this site
4-Download the zip file automatically created by the webpage by clicking on download button
5-Extract the zip file and copy res folder to you project library
note that res folder contain all size icon
6-finally you need to set the manifest to use icon
<application android:icon="#drawable/your_icon" >
....
</application>
You can simply install an Android studio Martial icons plugin its name is please check plugin URL Material Design Icon Generator and check this GIF for more details:
This is mainly for creating the icons with required sizes, and it will be located directly in its folders.
I found all these answers that used to be solid answers to be a bit dated now. I reckon this will be the fate of this answer someday.
Click on your main project, most people would have "app" as their main project name by default. I like to be specific since I have other projects as well.
[your project name|app]->"New"->"Image Asset"
Then you will get to pick an image. I chose once that wasn't the greatest fit. Notice the tool shows you the "safe zone".
You can sample the different resolutions. Change the name, etc. The default name is "ic_launcher". I prefer to be expressive with the name so there is no confusion later which ic_launcher this belongs too.
Choose "Next", make changes if you need to, and ultimately "Finish". I found the rest of the tool to be self explanatory. For more info I suggest reading the manual that describes all these settings in more detail: Android Studio Image Asset Tool Documentation
On "Finish" this will put the files into the respective folders under the expected "res" folder.
The next thing you have to do is have to tell the project that's the icon you want to use. Inside the AndroidManifest.xml do something like the following (using your own name you chose to use above.)
<application
android:icon="#mipmap/pooflingers_ic_launcher">
That's pretty much it, as of today anyway... I am using Android Studio v4.2.1 Let me know when these steps become out of date.
You have to follow steps like:
You will see your default icons ic_launcher.png like:
You have to change all the images which are in mipmap-xxxx folders.
First of you have to create your own logo or pick up image that you want to place as icon of launcher and upload here Android Asset Studio - Icon Generator - Launcher icons, You will get all the set of mipmap-xxxx and web_icon also from that link.
Now you have to copy all the folders which are in side of res folder,
Now go to Android Studio Project -> Right click on res folder -> Paste. It will prompt you like File 'ic_launcher.png' already exists in directory, You can press Overwrite all. It will paste/replace images in respective folder.
Now you can run and see your application icon with new image.
Happy Coding :) :)
Choose icon picture copy this pic
Paste it into your project's res/drawable folder
Open manifest file and set
Run program
If you have an SVG icon, you can use this script to generate your android icon set.
In AndroidManifest change these :
android:icon="#drawable/icon_name"
android:roundIcon="#drawable/icon_name"
Define the icon for android application
<application android:icon="drawable resource">
....
</application>
https://developer.android.com/guide/topics/manifest/application-element.html
If your app available across large range of devices
You should create separate icons for all generalized screen densities,
including low-, medium-, high-, and extra-high-density screens. This
ensures that your icons will display properly across the range of
devices on which your application can be installed...
Size & Format
Launcher icons should be 32-bit PNGs with an alpha channel for
transparency. The finished launcher icon dimensions corresponding to a
given generalized screen density are shown in the table below.
Place icon in mipmap or drawable folder
android:icon="#drawable/icon_name" or android:icon="#mipmap/icon_name"
developer.android.com/guide says,
This attribute must be set as a reference to a drawable resource
containing the image (for example "#drawable/icon").
about launcher icons android-developers.googleblog.com says,
It’s best practice to place your app icons in mipmap- folders (not the
drawable- folders) because they are used at resolutions different from
the device’s current density. For example, an xxxhdpi app icon can be
used on the launcher for an xxhdpi device.
Dianne Hackborn from Google (Android Framework) says,
If you are building different versions of your app for different
densities, you should know about the "mipmap" resource directory.
This is exactly like "drawable" resources, except it does not
participate in density stripping when creating the different apk
targets.
For launcher icons, the AndroidManifest.xml file must reference the mipmap/ location
<application android:name="ApplicationTitle"
android:label="#string/app_label"
android:icon="#mipmap/ic_launcher" >
Little bit more quoting this
You want to load an image for your device density and you are going to use it "as is", without changing its actual size. In this case you should work with drawables and Android will give you the best fitting image.
You want to load an image for your device density, but this image is going to be scaled up or down. For instance this is needed when you want to show a bigger launcher icon, or you have an animation, which increases image's size. In such cases, to ensure best image quality, you should put your image into mipmap folder. What Android will do is, it will try to pick up the image from a higher density bucket instead of scaling it up. This will increase sharpness (quality) of the image.
Fore more you can read mipmap vs drawable folders
Tools to easily generate assets
Android Asset Studio by romannurik.github
Android Asset Studio by jgilfelt.github
Image Asset Studio(from Android Studio)
Material Icon Generator.bitdroid.de
Android Material Design Icon Generator Plugin by github.com/konifar
A script to generate android assets from a SVG file
Read more : https://developer.android.com/guide/practices/ui_guidelines/icon_design_launcher.html
A bit old, but for future use:
Open Android Studio -> app/src/main/res -> Right Click -> Image Asset
Goto File->new->ImageAsset.
From their you can create Image Assets for your icon.
After that we will get icon image in mipmap different formats like
hdpi,mdpi,xhdpi,xxhdpi,xxxhdpi.
Now goto AndroidManifest.xml
<application android:icon="#mipmap/your_Icon"> ....</application>