Beike Product & Technology
Oct 26, 2018 · Mobile Development
Adding a Persistent Floating Button to Every Android Screen via DecorView Instead of WindowManager
The article explains why using WindowManager for floating buttons on Android is problematic across versions, demonstrates how the JD.com app adds a floating view directly to the Activity's DecorView, and provides a complete lifecycle‑aware implementation for Beike's app using ActivityLifecycleCallbacks and view injection.
ActivityLifecycleAndroidDecorView
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