Building modern Android app widgets
summary
Modern Android widgets align to device theme using dynamic color, adapt across sizes with responsive layouts, and ship discoverability and reconfiguration hooks. Practical steps include using android:id/background and material-components theme for dynamic colors, setting layouts to match_parent and defining sensible size limits, using AndroidX core-remoteviews responsive layouts or Jetpack Glance (alpha) to build Compose-style widgets, and scheduling updates with WorkManager while respecting system update limits to reduce background work. Examples: Google Keep and Drive refactors increase engagement by adapting look, actions, and content per available space.
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