Get all apps and all widgets in Android

Get all apps to get app info displayed in launcher, which adds the following <intent-filter> activity to the Androidmanifest.xml file

The specific get code is as follows:

The above method can get a list of Resolveinfo, the class name and package name of activity can be obtained through resolveinfo

Get all widgets get all widgets similar to getting all apps, return a list of appwidgetproviderinfo, Appwidgetproviderinfo can get the package name and class name of the widget, Here's how to get it: