diff --git a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
index 065ae3b..d7e7e85 100644
--- a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
@@ -5,6 +5,7 @@
 import android.os.Handler
 import android.os.Message
 import android.view.KeyEvent
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
@@ -149,16 +150,21 @@
      * rtsp流IP地址，默认是192.168.10.137
      * */
     private fun modifyCameraIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_camera_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_camera_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, value)
@@ -172,16 +178,21 @@
      * 板子tcp通信IP地址，默认是192.168.10.51
      * */
     private fun modifySocketIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_socket_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_socket_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, value)

diff --git a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
index 065ae3b..d7e7e85 100644
--- a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
@@ -5,6 +5,7 @@
 import android.os.Handler
 import android.os.Message
 import android.view.KeyEvent
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
@@ -149,16 +150,21 @@
      * rtsp流IP地址，默认是192.168.10.137
      * */
     private fun modifyCameraIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_camera_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_camera_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, value)
@@ -172,16 +178,21 @@
      * 板子tcp通信IP地址，默认是192.168.10.51
      * */
     private fun modifySocketIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_socket_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_socket_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, value)
diff --git a/app/src/main/res/layout/dialog_input_camera_ip.xml b/app/src/main/res/layout/dialog_input_camera_ip.xml
index fbe2a59..718363c 100644
--- a/app/src/main/res/layout/dialog_input_camera_ip.xml
+++ b/app/src/main/res/layout/dialog_input_camera_ip.xml
@@ -24,7 +24,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@null"
-            android:hint="请输入安全树视频相机IP地址"
+            android:hint="安全树视频相机IP地址"
             android:inputType="textEmailAddress"
             android:padding="@dimen/dp_10"
             android:textSize="@dimen/sp_16" />

diff --git a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
index 065ae3b..d7e7e85 100644
--- a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
@@ -5,6 +5,7 @@
 import android.os.Handler
 import android.os.Message
 import android.view.KeyEvent
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
@@ -149,16 +150,21 @@
      * rtsp流IP地址，默认是192.168.10.137
      * */
     private fun modifyCameraIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_camera_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_camera_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, value)
@@ -172,16 +178,21 @@
      * 板子tcp通信IP地址，默认是192.168.10.51
      * */
     private fun modifySocketIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_socket_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_socket_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, value)
diff --git a/app/src/main/res/layout/dialog_input_camera_ip.xml b/app/src/main/res/layout/dialog_input_camera_ip.xml
index fbe2a59..718363c 100644
--- a/app/src/main/res/layout/dialog_input_camera_ip.xml
+++ b/app/src/main/res/layout/dialog_input_camera_ip.xml
@@ -24,7 +24,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@null"
-            android:hint="请输入安全树视频相机IP地址"
+            android:hint="安全树视频相机IP地址"
             android:inputType="textEmailAddress"
             android:padding="@dimen/dp_10"
             android:textSize="@dimen/sp_16" />
diff --git a/app/src/main/res/layout/dialog_input_socket_ip.xml b/app/src/main/res/layout/dialog_input_socket_ip.xml
index c923fc0..57fe20c 100644
--- a/app/src/main/res/layout/dialog_input_socket_ip.xml
+++ b/app/src/main/res/layout/dialog_input_socket_ip.xml
@@ -24,7 +24,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@null"
-            android:hint="请输入安全树数据通信IP地址"
+            android:hint="安全树数据通信IP地址"
             android:inputType="textEmailAddress"
             android:padding="@dimen/dp_10"
             android:textSize="@dimen/sp_16" />

diff --git a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
index 065ae3b..d7e7e85 100644
--- a/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
+++ b/app/src/main/java/com/casic/app/safetreecontroller/view/MainActivity.kt
@@ -5,6 +5,7 @@
 import android.os.Handler
 import android.os.Message
 import android.view.KeyEvent
+import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.WindowManager
@@ -149,16 +150,21 @@
      * rtsp流IP地址，默认是192.168.10.137
      * */
     private fun modifyCameraIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_camera_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_camera_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_CAMERA_IP_KEY, value)
@@ -172,16 +178,21 @@
      * 板子tcp通信IP地址，默认是192.168.10.51
      * */
     private fun modifySocketIp() {
+        val oldValue = SaveKeyValues.getValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, "") as String
+
+        val view = LayoutInflater.from(this).inflate(R.layout.dialog_input_socket_ip, null)
+        val inputView = view.findViewById<AppCompatEditText>(R.id.inputView)
+        if (oldValue != "") {
+            inputView?.setText(oldValue)
+        }
+
         AlertDialog.Builder(this)
             .setTitle(getString(R.string.app_name))
             .setIcon(R.mipmap.ic_launcher)
-            .setView(R.layout.dialog_input_socket_ip)
+            .setView(view)
             .setCancelable(false)
             .setNegativeButton("取消") { _, _ -> }
-            .setPositiveButton("确定") { dialog, _ ->
-                val inputView = (dialog as AlertDialog).findViewById<AppCompatEditText>(
-                    R.id.inputView
-                )
+            .setPositiveButton("确定") { _, _ ->
                 val value = inputView?.text.toString()
                 if (value.isNotBlank()) {
                     SaveKeyValues.putValue(LocaleConstant.SAFE_TREE_SOCKET_IP_KEY, value)
diff --git a/app/src/main/res/layout/dialog_input_camera_ip.xml b/app/src/main/res/layout/dialog_input_camera_ip.xml
index fbe2a59..718363c 100644
--- a/app/src/main/res/layout/dialog_input_camera_ip.xml
+++ b/app/src/main/res/layout/dialog_input_camera_ip.xml
@@ -24,7 +24,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@null"
-            android:hint="请输入安全树视频相机IP地址"
+            android:hint="安全树视频相机IP地址"
             android:inputType="textEmailAddress"
             android:padding="@dimen/dp_10"
             android:textSize="@dimen/sp_16" />
diff --git a/app/src/main/res/layout/dialog_input_socket_ip.xml b/app/src/main/res/layout/dialog_input_socket_ip.xml
index c923fc0..57fe20c 100644
--- a/app/src/main/res/layout/dialog_input_socket_ip.xml
+++ b/app/src/main/res/layout/dialog_input_socket_ip.xml
@@ -24,7 +24,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:background="@null"
-            android:hint="请输入安全树数据通信IP地址"
+            android:hint="安全树数据通信IP地址"
             android:inputType="textEmailAddress"
             android:padding="@dimen/dp_10"
             android:textSize="@dimen/sp_16" />
diff --git a/app/src/main/res/layout/fragment_methane_monitor.xml b/app/src/main/res/layout/fragment_methane_monitor.xml
index d6e0aac..9a30cc7 100644
--- a/app/src/main/res/layout/fragment_methane_monitor.xml
+++ b/app/src/main/res/layout/fragment_methane_monitor.xml
@@ -75,7 +75,6 @@
                 android:maxLength="4"
                 android:padding="@dimen/dp_5"
                 android:singleLine="true"
-                android:text="0.1"
                 android:textColor="@color/black"
                 android:textSize="@dimen/sp_16" />