diff --git a/floatingx/src/main/java/com/petterp/floatingx/impl/control/FxBasisControlImpl.kt b/floatingx/src/main/java/com/petterp/floatingx/impl/control/FxBasisControlImpl.kt
index b614e22..e8d61c6 100644
--- a/floatingx/src/main/java/com/petterp/floatingx/impl/control/FxBasisControlImpl.kt
+++ b/floatingx/src/main/java/com/petterp/floatingx/impl/control/FxBasisControlImpl.kt
@@ -82,8 +82,7 @@ open class FxBasisControlImpl(private val helper: BasisHelper) : IFxControl, IFx
     }
 
     override fun updateView(provider: IFxContextProvider) {
-        val view = provider.build(context())
-        updateView(view)
+        updateView(provider.build(context()))
     }
 
     override fun updateViewContent(provider: IFxHolderProvider) {
@@ -207,7 +206,8 @@ open class FxBasisControlImpl(private val helper: BasisHelper) : IFxControl, IFx
     }
 
     protected open fun initManager() {
-        managerView = FxManagerView(context()).init(helper)
+        val context = context() ?: return
+        managerView = FxManagerView(context).init(helper)
         val fxContentView = managerView?.childFxView ?: return
         viewHolder = FxViewHolder(fxContentView)
         val fxViewLifecycle = helper.iFxViewLifecycle ?: return
@@ -238,11 +238,12 @@ open class FxBasisControlImpl(private val helper: BasisHelper) : IFxControl, IFx
         detach(containerGroup)
     }
 
-    protected open fun context(): Context {
-        if (mContainer?.get()?.context == null) {
-            throw NullPointerException("context cannot be null")
+    protected open fun context(): Context? {
+        val context = mContainer?.get()?.context
+        if (context == null) {
+            helper.fxLog?.e("context = null,check your rule!")
         }
-        return mContainer?.get()?.context!!
+        return context
     }
 
     protected fun clearContainer() {
diff --git a/floatingx/src/main/java/com/petterp/floatingx/listener/provider/IFxContextProvider.java b/floatingx/src/main/java/com/petterp/floatingx/listener/provider/IFxContextProvider.java
index 2eead7b..aac29a6 100644
--- a/floatingx/src/main/java/com/petterp/floatingx/listener/provider/IFxContextProvider.java
+++ b/floatingx/src/main/java/com/petterp/floatingx/listener/provider/IFxContextProvider.java
@@ -4,6 +4,7 @@
 import android.view.View;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 /**
  * Fx-Context提供者,用于构建合适的浮窗View
@@ -12,6 +13,12 @@
  * @author petterp
  */
 public interface IFxContextProvider {
+
+    /**
+     * 用于获取合适的context,从而构建合适位置的view
+     *
+     * @param context 注意该context在非全局浮窗时可能为null,建议在调用时注意做好check
+     */
     @NonNull
-    View build(@NonNull Context context);
+    View build(@Nullable Context context);
 }
diff --git a/floatingx/src/main/java/com/petterp/floatingx/util/FxScreenExt.kt b/floatingx/src/main/java/com/petterp/floatingx/util/FxScreenExt.kt
index e06d496..46ffdde 100644
--- a/floatingx/src/main/java/com/petterp/floatingx/util/FxScreenExt.kt
+++ b/floatingx/src/main/java/com/petterp/floatingx/util/FxScreenExt.kt
@@ -161,11 +161,10 @@ private fun checkNavigationBarShow(context: Context): Boolean {
         val m = systemPropertiesClass.getMethod("get", String::class.java)
         val navBarOverride = m.invoke(systemPropertiesClass, "qemu.hw.mainkeys") as String
         // 判断是否隐藏了底部虚拟导航
-        var navigationBarIsMin = 0
-        navigationBarIsMin = Settings.Global.getInt(
+        val navigationBarIsMin: Int = Settings.Global.getInt(
             context.contentResolver,
             "navigationbar_is_min",
-            0
+            0,
         )
         if ("1" == navBarOverride || 1 == navigationBarIsMin) {
             hasNavigationBar = false
@@ -262,7 +261,7 @@ private fun onePlusNavigationEnabled(context: Context): Int {
     if (result == 2 && Settings.System.getInt(
             context.contentResolver,
             "buttons_show_on_screen_navkeys",
-            0
+            0,
         ) != 0
     ) {
         // 两种手势 0有按钮， 1没有按钮
@@ -275,7 +274,7 @@ private fun samsungNavigationEnabled(context: Context): Int {
     return Settings.Global.getInt(
         context.contentResolver,
         "navigationbar_hide_bar_enabled",
-        0
+        0,
     )
 }
 
@@ -285,17 +284,17 @@ private fun smartisanNavigationEnabled(context: Context): Int {
 
 private fun nokiaNavigationEnabled(context: Context): Int {
     val result = (
-            Settings.Secure.getInt(
+        Settings.Secure.getInt(
+            context.contentResolver,
+            "swipe_up_to_switch_apps_enabled",
+            0,
+        ) != 0 ||
+            Settings.System.getInt(
                 context.contentResolver,
-                "swipe_up_to_switch_apps_enabled",
-                0
-            ) != 0 ||
-                    Settings.System.getInt(
-                        context.contentResolver,
-                        "navigation_bar_can_hiden",
-                        0
-                    ) != 0
-            )
+                "navigation_bar_can_hiden",
+                0,
+            ) != 0
+        )
     return if (result) {
         1
     } else {