Android email widget not updating
The App Widget Provider receives only the event broadcasts that are relevant to the App Widget, such as when the App Widget is updated, deleted, enabled, and disabled.
It's easy to write a single layout that has custom margins applied for earlier versions of the platform, and has no extra margins for Android 4.0 and greater: class extends Broadcast Receiver as a convenience class to handle the App Widget broadcasts.See the Wiktionary sample's App Widget Provider for an example of an App Widget running a On devices running Android 8.0 (API level 26) and higher, the launchers that allow you to create pinned shortcuts also allow you to pin app widgets onto the launcher.Similar to pinned shortcuts, these pinned widgets give users access to specific tasks in your app.App Widgets are miniature application views that can be embedded in other applications (such as the Home screen) and receive periodic updates.These views are referred to as Widgets in the user interface, and you can publish one with an App Widget provider.For example, if the update schedule is defined to be every two hours, and a second instance of the App Widget is added one hour after the first one, then they will both be updated on the period defined by the first one and the second update period will be ignored (they'll both be updated every two hours, not every hour).
Note: Because for information about the broadcast lifecycle).
An application component that is able to hold other App Widgets is called an App Widget host. This document describes how to publish an App Widget using an App Widget provider.
For a discussion of creating your own Defines the basic methods that allow you to programmatically interface with the App Widget, based on broadcast events.
For example, if the user adds two instances of your App Widget, this is only called the first time.
If you need to open a new database or perform other setup that only needs to occur once for all App Widget instances, then this is a good place to do it.
You can use this callback to show or hide content based on the widget's size ranges.