diff --git a/app/src/main/java/com/yutou/doormanager/MainActivity.kt b/app/src/main/java/com/yutou/doormanager/MainActivity.kt
index 9340f7d..47c3898 100644
--- a/app/src/main/java/com/yutou/doormanager/MainActivity.kt
+++ b/app/src/main/java/com/yutou/doormanager/MainActivity.kt
@@ -27,6 +27,7 @@ import me.lake.librestreaming.ws.filter.hardfilter.WatermarkFilter
 import me.lake.librestreaming.ws.filter.hardfilter.extra.GPUImageCompatibleFilter
 import org.json.JSONObject
 import java.io.File
+import java.math.BigDecimal
 import java.util.*
 
 
@@ -37,7 +38,7 @@ class MainActivity : AppCompatActivity() {
     private lateinit var button_open: Button
     private lateinit var button_af: Button
     private lateinit var mLiveCameraView: StreamLiveCameraView
-    private var zoom = 0.0f
+    private var zoom =BigDecimal(0)
     private var isUpdate = true
     public lateinit var myDataListener: MyDataListener
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -74,19 +75,20 @@ class MainActivity : AppCompatActivity() {
         button_open = findViewById(R.id.openPC)
         button_af = findViewById(R.id.af)
         button_up.setOnClickListener {
-            zoom += 0.1f
-            if (zoom > 1.0f) {
-                zoom = 1.0f
+            zoom.add(BigDecimal(0.1))
+            if (zoom.toFloat() > 1.0f) {
+                zoom = BigDecimal(1.0)
             }
-            mLiveCameraView.setZoomByPercent(zoom)
+
+            mLiveCameraView.setZoomByPercent(zoom.toFloat())
             uploadZoom(zoom)
         }
         button_down.setOnClickListener {
-            zoom -= 0.1f
-            if (zoom < 0f) {
-                zoom = 0.0f
+            zoom.subtract(BigDecimal(0.1))
+            if (zoom.toFloat() < 0f) {
+                zoom = BigDecimal(0)
             }
-            mLiveCameraView.setZoomByPercent(zoom)
+            mLiveCameraView.setZoomByPercent(zoom.toFloat())
             uploadZoom(zoom)
         }
         button_screen.setOnClickListener {
@@ -119,14 +121,14 @@ class MainActivity : AppCompatActivity() {
         }
     }
 
-    private fun uploadZoom(zoom: Float) {
+    private fun uploadZoom(zoom: BigDecimal) {
         val json = JSONObject()
-        json.put("zoom", zoom)
+        json.put("zoom", "${zoom.toFloat()}")
         HttpUtils.post("http://192.168.31.88:8000/door/zoom.do", json, null, object : HttpListener {
             override fun data(code: Int, data: String) {
                 if (data == "1") {
                     Handler(Looper.getMainLooper()).post {
-                        Toast.makeText(this@MainActivity, "设置成功:${zoom}", Toast.LENGTH_LONG).show()
+                        Toast.makeText(this@MainActivity, "设置成功:${zoom.toFloat()}", Toast.LENGTH_LONG).show()
                     }
                 }
             }
@@ -170,7 +172,7 @@ class MainActivity : AppCompatActivity() {
             Timer().schedule(object : TimerTask() {
                 override fun run() {
                     watermark.updateText(32f, Utils.getTime()+" 推流:${mLiveCameraView.avSpeed}")
-                    if (!mLiveCameraView.isStreaming||mLiveCameraView.avSpeed==0) {
+                    if (mLiveCameraView.avSpeed==0) {
                         mLiveCameraView.stopStreaming()
                         mLiveCameraView.startStreaming("rtmp://192.168.31.88/live")
                     }
@@ -194,8 +196,8 @@ class MainActivity : AppCompatActivity() {
     inner class MyDataListener : DataListener {
         override fun out(json: JSONObject) {
             Handler(Looper.getMainLooper()).post {
-                zoom = json.getDouble("zoom").toFloat()
-                mLiveCameraView.setZoomByPercent(zoom)
+                zoom = BigDecimal(json.getDouble("zoom"))
+                mLiveCameraView.setZoomByPercent(zoom.toFloat())
                 if (json.getString("restart").equals("1")) {
                     val intent = packageManager.getLaunchIntentForPackage(packageName);
                     intent!!.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
diff --git a/libWSLive/build.gradle b/libWSLive/build.gradle
index e413bf0..5a82d32 100644
--- a/libWSLive/build.gradle
+++ b/libWSLive/build.gradle
@@ -5,6 +5,7 @@ android {
     compileSdkVersion 31
     defaultConfig {
         targetSdkVersion 31
+        minSdk 21
         ndk{
             abiFilters "armeabi-v7a"
         }
@@ -22,6 +23,13 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    buildFeatures {
+        viewBinding true
+    }
   /*  externalNativeBuild{
         ndkBuild{
             path file("src/main/jni/rtmp/Android.mk")
@@ -39,4 +47,13 @@ android {
 
 dependencies {
     implementation 'jp.co.cyberagent.android.gpuimage:gpuimage-library:1.4.1'
+
+    def camerax_version = "1.1.0-beta01"
+    implementation "androidx.camera:camera-core:${camerax_version}"
+    implementation "androidx.camera:camera-camera2:${camerax_version}"
+    implementation "androidx.camera:camera-lifecycle:${camerax_version}"
+    implementation "androidx.camera:camera-video:${camerax_version}"
+
+    implementation "androidx.camera:camera-view:${camerax_version}"
+    implementation "androidx.camera:camera-extensions:${camerax_version}"
 }
diff --git a/libWSLive/src/main/java/me/lake/librestreaming/client/RESVideoClient.java b/libWSLive/src/main/java/me/lake/librestreaming/client/RESVideoClient.java
index e2f0c2d..2e32790 100644
--- a/libWSLive/src/main/java/me/lake/librestreaming/client/RESVideoClient.java
+++ b/libWSLive/src/main/java/me/lake/librestreaming/client/RESVideoClient.java
@@ -511,7 +511,7 @@ public class RESVideoClient {
     public void setCameraArea(){
         System.out.println("设置对焦");
         List<Camera.Area> focusAreas = new ArrayList<>();
-        focusAreas.add(new Camera.Area(calculateTapArea(0,0,5,5,1.0f), 800));
+        focusAreas.add(new Camera.Area(new Rect(-100, -100, 100, 100), 1000));
         Camera.Parameters parameters=camera.getParameters();
         parameters.setFocusAreas(focusAreas);
         camera.setParameters(parameters);