feat(android): NowPlaying dominant-color gradient backdrop (audit v2 #17, slice 1)

Adds androidx.palette dependency and a rememberDominantColor()
helper that pulls the cover bitmap via Coil's singleton loader
(shares the cache with the on-screen AsyncImage), runs Palette
extraction on Dispatchers.Default, and animates the resulting
color with animateColorAsState so track changes tween smoothly.

NowPlayingScreen wraps the body in a Box with a vertical gradient
(0% dominant @ 55%α → 45% dominant @ 18%α → 100% scheme.background)
and lets the Scaffold's containerColor go transparent so the
gradient shows through. Falls back to a near-transparent gradient
on bitmap-load failure so the screen never sits on flat black.

Hero transition (MiniPlayer → NowPlaying cover) and cover
preload still pending — those land in a follow-up commit.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

This commit is contained in:

Bryan Van Deusen

2026-05-27 15:08:00 -04:00

parent f9b0c267e3

commit 01fdd2f380

4 changed files with 104 additions and 8 deletions

									
										android/app/build.gradle.kts
									
		+1
		
												View File
												
				@@ -165,6 +165,7 @@ dependencies {

				    implementation(libs.coil.compose)

				    implementation(libs.coil.network.okhttp)

				    implementation(libs.androidx.palette)

				    implementation(libs.icons.lucide)

				    implementation(libs.timber)