diff --git a/app/src/main/java/com/longdo/mjpegview/MainActivity.java b/app/src/main/java/com/longdo/mjpegview/MainActivity.java
index d73f291..7c5d4c6 100644
--- a/app/src/main/java/com/longdo/mjpegview/MainActivity.java
+++ b/app/src/main/java/com/longdo/mjpegview/MainActivity.java
@@ -29,6 +29,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         view2 = findViewById(R.id.mjpegview2);
         view2.setAdjustHeight(true);
+        view2.setSupportPinchZoomAndPan(true);
         //view.setAdjustWidth(true);
         view2.setMode(MjpegView.MODE_FIT_WIDTH);
         //view.setMsecWaitAfterReadImageError(1000);
diff --git a/build.gradle b/build.gradle
index eb79a38..fe3f51b 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.2'
+        classpath 'com.android.tools.build:gradle:4.1.3'
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.7.3'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.4.1'
         
diff --git a/mjpegviewer/build.gradle b/mjpegviewer/build.gradle
index 0a0a594..174c811 100644
--- a/mjpegviewer/build.gradle
+++ b/mjpegviewer/build.gradle
@@ -27,14 +27,14 @@ ext {
 }
 
 android {
-    compileSdkVersion 29
-    buildToolsVersion '29.0.3'
+    compileSdkVersion 30
+    buildToolsVersion '30.0.3'
 
     defaultConfig {
         minSdkVersion 14
-        targetSdkVersion 29
-        versionCode 108
-        versionName "1.0.8"
+        targetSdkVersion 30
+        versionCode 109
+        versionName "1.0.9"
     }
     buildTypes {
         release {
@@ -46,7 +46,7 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.2.0'
 }
 
 apply from: 'https://raw.githubusercontent.com/nuuneoi/JCenter/master/installv1.gradle'
diff --git a/mjpegviewer/src/main/java/com/longdo/mjpegviewer/MjpegView.java b/mjpegviewer/src/main/java/com/longdo/mjpegviewer/MjpegView.java
index c048942..2089a46 100755
--- a/mjpegviewer/src/main/java/com/longdo/mjpegviewer/MjpegView.java
+++ b/mjpegviewer/src/main/java/com/longdo/mjpegviewer/MjpegView.java
@@ -56,6 +56,7 @@ public class MjpegView extends View{
 
     private boolean isRecycleBitmap;
     private boolean isUserForceConfigRecycle;
+    private boolean isSupportPinchZoomAndPan;
 
     public MjpegView(Context context){
         super(context);
@@ -301,6 +302,14 @@ public void setRecycleBitmap(boolean recycleBitmap) {
         isRecycleBitmap = recycleBitmap;
     }
 
+    public boolean getSupportPinchZoomAndPan() {
+        return isSupportPinchZoomAndPan;
+    }
+
+    public void setSupportPinchZoomAndPan(boolean supportPinchZoomAndPan) {
+        isSupportPinchZoomAndPan = supportPinchZoomAndPan;
+    }
+
     class MjpegDownloader extends Thread{
 
         private boolean run = true;
@@ -545,7 +554,9 @@ public void onScaleEnd(ScaleGestureDetector detector) {
 
     @Override
     public boolean onTouchEvent(MotionEvent event) {
-        if(event.getPointerCount() == 1) {
+        if (!isSupportPinchZoomAndPan) {
+            return false;
+        } else if(event.getPointerCount() == 1) {
             int id = event.getAction();
             if(id == MotionEvent.ACTION_DOWN){
                 touchStart.set(event.getX(),event.getY());