The “AutoFill Service” supported by Android OS is a feature that helps you enter a password. When you use a web service or app that requires you to sign in, you will be asked for a user ID or password, but you won’t have to type them on the keyboard.
The autofill service selects the features provided by Google at the initial value, allowing you to call the user ID/password stored in your Google account. Web browser “Chrome” if you have signed in to the website, the user ID / password candidate is displayed in the input form the next time you visit, you can easily select. If you use the same Google Account, you can also use a user ID/password that you’ve entered on your computer or tablet.
In addition, the autofill service includes personal information such as zip code, address, phone number, and credit card number. Due to the convenience of the screen layout, the input form of the web site is often small, but long strings like the address tend to overflow, you do not need to worry about using the auto-input service.
Not only the website, you can use the auto-entry service in apps that require login processing. It is limited to apps that support the “Autofill framework” introduced from Android 8, but is supported by many apps such as Twitter and Facebook.
The autofill service is selected as the initial value of Google, but you can change it. When you open the screen in the order of “Settings” → “System” → “Language and Input” → “Auto-input service”, you can select third-party password management apps such as “1Password” and “LastPass”.
What is Android’s “auto-fill service”?