diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/base/BaseActivity.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/base/BaseActivity.kt
index 354ee87..159f4b9 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/base/BaseActivity.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/base/BaseActivity.kt
@@ -1,14 +1,22 @@
 package com.yinuo.safetywatcher.watcher.base
 
+import android.content.Context
 import android.os.Bundle
+import android.util.AttributeSet
+import android.view.LayoutInflater
+import android.view.LayoutInflater.Factory2
 import android.view.View
 import android.view.ViewGroup
+import android.widget.LinearLayout
 import android.widget.RelativeLayout
+import android.widget.TextView
 import androidx.appcompat.app.AppCompatActivity
 import com.yinuo.safetywatcher.R
 import com.yinuo.safetywatcher.databinding.ActivityBaseBinding
+import com.yinuo.safetywatcher.watcher.constant.NAMESPACE_ANDROID
 import com.yinuo.safetywatcher.watcher.ui.view.CommonDialog
 import com.yinuo.safetywatcher.watcher.ui.view.CommonTopBar
+import com.yinuo.safetywatcher.watcher.utils.trySetCommonBg
 
 abstract class BaseActivity : AppCompatActivity() {
 
@@ -19,6 +27,7 @@ abstract class BaseActivity : AppCompatActivity() {
     var loadingDialog: CommonDialog? = null;
 
     override fun onCreate(savedInstanceState: Bundle?) {
+        setViewFactory()
         super.onCreate(savedInstanceState)
         setContentView(baseBinding.root)
         setChildContent()
@@ -77,4 +86,39 @@ abstract class BaseActivity : AppCompatActivity() {
     abstract fun generateContentView(): View
 
     abstract fun initView()
+
+    private fun setViewFactory() {
+        val inflater = LayoutInflater.from(this)
+        inflater.factory2 = object : Factory2 {
+            override fun onCreateView(
+                parent: View?,
+                name: String,
+                context: Context,
+                attrs: AttributeSet
+            ): View? {
+                val booleanValue =
+                    attrs.getAttributeBooleanValue(NAMESPACE_ANDROID, "focusable", false)
+                var view: View? = null
+                if (booleanValue) {
+                    view = tryCreateView(name, context, attrs)
+                    view?.trySetCommonBg()
+                }
+                return view
+            }
+
+            override fun onCreateView(name: String, context: Context, attrs: AttributeSet): View? {
+                return onCreateView(null, name, context, attrs)
+            }
+        }
+    }
+
+    private fun tryCreateView(name: String, context: Context, attrs: AttributeSet): View? {
+        return when (name) {
+            "LinearLayout" -> LinearLayout(context, attrs)
+            "TextView" -> TextView(context, attrs)
+            else -> {
+                null
+            }
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
index e2005f1..fb96dfc 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/constant/Constants.kt
@@ -16,4 +16,6 @@ const val CAMERA_URL = "rtsp://admin:123456@192.168.5.200:554/h264/ch1/main/av_s
 const val DELAY_TIME_OPEN_CAMERA = 10
 
 //检测重连摄像头延时
-const val DELAY_TIME_CHECK_CAMERA = 5
\ No newline at end of file
+const val DELAY_TIME_CHECK_CAMERA = 5
+
+const val NAMESPACE_ANDROID = "http://schemas.android.com/apk/res/android"
\ No newline at end of file
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
index 3590437..30f1a5f 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/ui/view/CommonTopBar.kt
@@ -18,6 +18,7 @@ import com.yinuo.safetywatcher.databinding.LayoutTopbarBinding
 import com.yinuo.safetywatcher.watcher.utils.BatteryHelper
 import com.yinuo.safetywatcher.watcher.utils.SimHelper
 import com.yinuo.safetywatcher.watcher.utils.WifiHelper
+import com.yinuo.safetywatcher.watcher.utils.trySetCommonBg
 
 class CommonTopBar : LinearLayout {
     constructor(context: Context?) : this(context, null)
@@ -142,8 +143,10 @@ class CommonTopBar : LinearLayout {
             opView.setTextColor(Color.WHITE)
             opView.setTextSize(TypedValue.COMPLEX_UNIT_PX, 30f)
             opView.tag = option.type
+            opView.focusable = FOCUSABLE
             opView.background = AppCompatResources.getDrawable(context, R.mipmap.op_bg)
             opView.setOnClickListener(opClickListener)
+            opView.trySetCommonBg()
             mBinding?.opsContainer?.addView(opView, opLayoutParams)
             if (index != list.size - 1) {
                 mBinding?.opsContainer?.addView(Space(context), opSpaceLayoutParams)
diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/Exts.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/Exts.kt
index ba0fef4..d5d1383 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/Exts.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/utils/Exts.kt
@@ -1,9 +1,26 @@
 package com.yinuo.safetywatcher.watcher.utils
 
+import android.R
 import android.content.Context
+import android.graphics.Color
+import android.graphics.drawable.ColorDrawable
+import android.graphics.drawable.StateListDrawable
+import android.view.View
 import android.widget.Toast
 import com.yinuo.safetywatcher.watcher.ui.view.CommonToast
 
 fun Context.showToast(msg: String) {
     CommonToast(this).makeCommonText(this, msg, Toast.LENGTH_SHORT).show()
+}
+
+private val focusableStateKey: IntArray = intArrayOf(R.attr.state_focused)
+fun View?.trySetCommonBg() {
+    this?.apply {
+        val bg = StateListDrawable()
+        val currentBackground = this.background
+        val drawable = ColorDrawable(Color.RED)
+        bg.addState(focusableStateKey, drawable)
+        bg.addState(intArrayOf(), currentBackground)
+        this.background = bg
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_cloud.xml b/app/src/main/res/layout/activity_cloud.xml
index 3af4e28..b6bbd68 100644
--- a/app/src/main/res/layout/activity_cloud.xml
+++ b/app/src/main/res/layout/activity_cloud.xml
@@ -11,6 +11,8 @@
         android:layout_height="@dimen/_100dp"
         android:background="@drawable/cloud_sync_btn_bg"
         android:gravity="center"
+        android:focusedByDefault="true"
+        android:focusable="true"
         android:text="@string/sync_sensor_txt"
         android:textColor="@color/white"
         android:textSize="@dimen/_30dp" />
@@ -33,6 +35,7 @@
         android:layout_marginTop="@dimen/_50dp"
         android:background="@drawable/cloud_sync_btn_bg"
         android:gravity="center"
+        android:focusable="true"
         android:text="@string/sync_video_txt"
         android:textColor="@color/white"
         android:textSize="@dimen/_30dp" />
@@ -44,6 +47,7 @@
         android:layout_marginTop="@dimen/_50dp"
         android:background="@drawable/cloud_sync_btn_bg"
         android:gravity="center"
+        android:focusable="true"
         android:text="@string/sync_once_txt"
         android:textColor="@color/white"
         android:textSize="@dimen/_30dp" />
diff --git a/app/src/main/res/layout/activity_history_video.xml b/app/src/main/res/layout/activity_history_video.xml
index a2344f3..c52d525 100644
--- a/app/src/main/res/layout/activity_history_video.xml
+++ b/app/src/main/res/layout/activity_history_video.xml
@@ -25,6 +25,7 @@
             android:background="@drawable/save_btn_bg"
             android:paddingHorizontal="@dimen/_18dp"
             android:paddingVertical="@dimen/_12dp"
+            android:focusable="true"
             android:text="@string/modify_params"
             android:textColor="@color/white"
             android:textSize="@dimen/_32dp" />
diff --git a/app/src/main/res/layout/activity_home.xml b/app/src/main/res/layout/activity_home.xml
index 1d58fa7..e5c39b4 100644
--- a/app/src/main/res/layout/activity_home.xml
+++ b/app/src/main/res/layout/activity_home.xml
@@ -26,6 +26,7 @@
             android:gravity="center_vertical"
             android:orientation="horizontal"
             android:focusedByDefault="true"
+            android:focusable="true"
             android:nextFocusDown="@id/item_query"
             android:paddingStart="@dimen/_66dp">
 
@@ -49,6 +50,7 @@
             android:layout_height="@dimen/_88dp"
             android:gravity="center_vertical"
             android:orientation="horizontal"
+            android:focusable="true"
             android:paddingStart="@dimen/_66dp">
 
             <ImageView
@@ -70,6 +72,7 @@
             android:id="@+id/item_wraning"
             android:layout_width="match_parent"
             android:layout_height="@dimen/_88dp"
+            android:focusable="true"
             android:gravity="center_vertical"
             android:orientation="horizontal"
             android:paddingStart="@dimen/_66dp">
@@ -92,6 +95,7 @@
             android:id="@+id/item_recovery"
             android:layout_width="match_parent"
             android:layout_height="@dimen/_88dp"
+            android:focusable="true"
             android:gravity="center_vertical"
             android:orientation="horizontal"
             android:paddingStart="@dimen/_66dp">
@@ -113,6 +117,7 @@
         <LinearLayout
             android:layout_width="match_parent"
             android:layout_height="@dimen/_88dp"
+            android:focusable="true"
             android:gravity="center_vertical"
             android:orientation="horizontal"
             android:paddingStart="@dimen/_66dp">
diff --git a/app/src/main/res/layout/activity_light_setting.xml b/app/src/main/res/layout/activity_light_setting.xml
index 8f85436..61edfdb 100644
--- a/app/src/main/res/layout/activity_light_setting.xml
+++ b/app/src/main/res/layout/activity_light_setting.xml
@@ -42,6 +42,7 @@
             android:background="@drawable/cancel_btn_bg"
             android:gravity="center"
             android:text="@string/cancel"
+            android:focusable="true"
             android:textColor="@color/white_30"
             android:textSize="@dimen/_36dp" />
 
@@ -54,6 +55,7 @@
             android:background="@drawable/confirm_btn_bg"
             android:gravity="center"
             android:text="@string/confirm"
+            android:focusable="true"
             android:textColor="@color/white"
             android:textSize="@dimen/_36dp" />
     </RelativeLayout>
diff --git a/app/src/main/res/layout/activity_net_setting.xml b/app/src/main/res/layout/activity_net_setting.xml
index 1f44f87..4b283aa 100644
--- a/app/src/main/res/layout/activity_net_setting.xml
+++ b/app/src/main/res/layout/activity_net_setting.xml
@@ -40,6 +40,7 @@
         android:layout_height="@dimen/_108dp"
         android:gravity="center_vertical"
         android:orientation="horizontal"
+        android:focusable="true"
         android:paddingStart="@dimen/_121dp">
 
         <ImageView
diff --git a/app/src/main/res/layout/activity_query_data.xml b/app/src/main/res/layout/activity_query_data.xml
index ea56b49..82026e3 100644
--- a/app/src/main/res/layout/activity_query_data.xml
+++ b/app/src/main/res/layout/activity_query_data.xml
@@ -25,6 +25,8 @@
             android:background="@drawable/save_btn_bg"
             android:paddingHorizontal="@dimen/_18dp"
             android:paddingVertical="@dimen/_12dp"
+            android:focusedByDefault="true"
+            android:focusable="true"
             android:text="@string/modify_params"
             android:textColor="@color/white"
             android:textSize="@dimen/_32dp" />
diff --git a/app/src/main/res/layout/activity_setting.xml b/app/src/main/res/layout/activity_setting.xml
index 7d01ed3..f35ed09 100644
--- a/app/src/main/res/layout/activity_setting.xml
+++ b/app/src/main/res/layout/activity_setting.xml
@@ -12,6 +12,7 @@
         android:layout_height="@dimen/_108dp"
         android:gravity="center_vertical"
         android:orientation="horizontal"
+        android:focusable="true"
         android:paddingStart="@dimen/_121dp">
 
         <ImageView
@@ -37,6 +38,7 @@
         android:id="@+id/item_light"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -64,6 +66,7 @@
         android:id="@+id/item_query"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -91,6 +94,7 @@
         android:id="@+id/item_wraning"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -118,6 +122,7 @@
         android:id="@+id/item_video"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -145,6 +150,7 @@
         android:id="@+id/item_sensor"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -172,6 +178,7 @@
         android:id="@+id/item_cloud"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -199,6 +206,7 @@
         android:id="@+id/item_net"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
@@ -226,6 +234,7 @@
         android:id="@+id/item_recovery"
         android:layout_width="match_parent"
         android:layout_height="@dimen/_108dp"
+        android:focusable="true"
         android:gravity="center_vertical"
         android:orientation="horizontal"
         android:paddingStart="@dimen/_121dp">
diff --git a/app/src/main/res/layout/activity_time_setting.xml b/app/src/main/res/layout/activity_time_setting.xml
index 08fa082..60ff18f 100644
--- a/app/src/main/res/layout/activity_time_setting.xml
+++ b/app/src/main/res/layout/activity_time_setting.xml
@@ -77,6 +77,7 @@
             android:text="@string/cancel"
             android:textColor="@color/white_30"
             android:textSize="@dimen/_36dp"
+            android:focusable="true"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintStart_toStartOf="parent" />
 
@@ -91,6 +92,7 @@
             android:text="@string/confirm"
             android:textColor="@color/white"
             android:textSize="@dimen/_36dp"
+            android:focusable="true"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent" />
     </androidx.constraintlayout.widget.ConstraintLayout>
diff --git a/app/src/main/res/layout/activity_warndata.xml b/app/src/main/res/layout/activity_warndata.xml
index bc4fa5b..8725d19 100644
--- a/app/src/main/res/layout/activity_warndata.xml
+++ b/app/src/main/res/layout/activity_warndata.xml
@@ -25,6 +25,7 @@
             android:layout_marginStart="@dimen/_20dp"
             android:paddingVertical="@dimen/_12dp"
             android:paddingHorizontal="@dimen/_18dp"
+            android:focusable="true"
             android:textSize="@dimen/_32dp"
             android:textColor="@color/white"
             android:background="@drawable/save_btn_bg"/>
diff --git a/app/src/main/res/layout/layout_topbar.xml b/app/src/main/res/layout/layout_topbar.xml
index 7806f65..205ef7a 100644
--- a/app/src/main/res/layout/layout_topbar.xml
+++ b/app/src/main/res/layout/layout_topbar.xml
@@ -9,8 +9,9 @@
     <LinearLayout
         android:id="@+id/back_area"
         android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
+        android:layout_height="match_parent"
         android:gravity="center_vertical"
+        android:focusable="true"
         android:paddingStart="16dp">
 
         <ImageView
diff --git a/buildCommon/commonLibConfig.gradle b/buildCommon/commonLibConfig.gradle
index 5ef6240..24cf889 100644
--- a/buildCommon/commonLibConfig.gradle
+++ b/buildCommon/commonLibConfig.gradle
@@ -13,7 +13,7 @@ project.ext {
     versions = [
             compileSdkVersion      : 33,
             buildToolsVersion      : "33.0.3",
-            minSdkVersion          : 24,
+            minSdkVersion          : 26,
             targetSdkVersion       : 28,
             versionCode            : 1,
             versionName            : "1.0",