You only need to do this if you are publishing. If you move your project to another App Inventor server, you will want to upload your keystore to that server (you will see that under "Projects" there is a "Import Keystore" option as well). It should not be publicly readable as your private digital key is a secret which should not be shared. This will download your keystore file to your local computer. From the designer under the "Projects" menu there is a choice labeled "Export Keystore". Although we do not anticipate losing your keystore file, we recommend that you back it up. Normally the MIT App Inventor server will create this file when needed and store it for you so you do not need to worry about it. Your private digital key is stored in a keystore file. It is therefore important that you not lose this key! In order to install an updated version of an application, the new application must be signed by the same key. ![]() When an android phone has an application installed on it, it remembers the key that was used to sign it. Whenever you build a new version this same key is used to sign the new version. apk building process your application is signed with a digital private key which is associated with your account. IT IS IMPERATIVE THAT YOU MAKE YOUR OWN BACKUPS! A Word about keystores:ĭuring the. HOWEVER WE CAN OFFER NO GUARANTEE THAT DATA (LIKE YOUR PROJECTS) WILL NEVER BE LOST. MIT and Google, which operate the App Engine service on which MIT App Inventor relies, make best efforts to ensure that MIT App Inventor does not lose projects. To do this, click on "Project->My Projects", check the box next to the name of your project and then select "Project->Export selected project (.aia) to my computer." This will download a zip file which contains your projects source code. It is therefore very important that you backup your application's source code. Once you publish your application in the Google Play Store, other people will now be depending upon you to fix bugs and otherwise maintain your application. You can now go to Google Play Publishing Home and follow the steps to publish your app to Google Play.įor more details, you may want to start with Introduction to Publishing on Google Play and Google Support on Uploading to Google Play. apk downloaded, you are ready to begin the publishing process. This will prompt you to save the application somewhere.
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