[Color] Update DynamicColors util to use activity.getTheme().applyStyle() instead of activity.setTheme() to workaround Force Dark issue

dsn5ft · dsn5ft · commit b84f35f12110 · 2022-01-19T11:15:01.000-05:00
Resolves #2521 PiperOrigin-RevId: 422816956
diff --git a/lib/java/com/google/android/material/color/DynamicColors.java b/lib/java/com/google/android/material/color/DynamicColors.java
@@ -231,7 +231,8 @@ private static void applyIfAvailable(
       theme = getDefaultThemeOverlay(activity);
     }
     if (theme != 0 && precondition.shouldApplyDynamicColors(activity, theme)) {
-      activity.setTheme(theme);
+      // Use applyStyle() instead of setTheme() due to Force Dark issue.
+      activity.getTheme().applyStyle(theme, /* force= */ true);
     }
   }
 

Original file line number	Diff line number	Diff line change
`@@ -231,7 +231,8 @@ private static void applyIfAvailable(`
`231`	`231`	`theme = getDefaultThemeOverlay(activity);`
`232`	`232`	`}`
`233`	`233`	`if (theme != 0 && precondition.shouldApplyDynamicColors(activity, theme)) {`
`234`		`- activity.setTheme(theme);`
	`234`	`+ // Use applyStyle() instead of setTheme() due to Force Dark issue.`
	`235`	`+ activity.getTheme().applyStyle(theme, /* force= */ true);`
`235`	`236`	`}`
`236`	`237`	`}`
`237`	`238`