diff --git a/README.md b/README.md
index 2e104a4..5d9bad1 100644
--- a/README.md
+++ b/README.md
@@ -54,7 +54,7 @@ allprojects {
 ##### 此处显示的是本框架的最新版本号：
 ##### ⚠️注意：glide v3版本不再维护，最终版本为v3_4.0.2。建议使用androidx版本。
 ```
-androidx用户  :   使用  androidx-7.1.3
+androidx用户  :   使用  androidx-7.1.4
 对于glide4.x  :   使用        v4_6.1.3
 ```
 
@@ -68,7 +68,7 @@ dependencies {
   annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
   implementation 'com.github.bumptech.glide:okhttp3-integration:4.11.0'
   // BigImageViewPager https://github.com/SherlockGougou/BigImageViewPager
-  implementation 'com.github.SherlockGougou:BigImageViewPager:androidx-7.1.3'
+  implementation 'com.github.SherlockGougou:BigImageViewPager:androidx-7.1.4'
 
 ================================分割线==================================
 
diff --git a/library/src/main/java/cc/shinichi/library/tool/image/ImageUtil.kt b/library/src/main/java/cc/shinichi/library/tool/image/ImageUtil.kt
index 7ebc59c..5f9d63d 100644
--- a/library/src/main/java/cc/shinichi/library/tool/image/ImageUtil.kt
+++ b/library/src/main/java/cc/shinichi/library/tool/image/ImageUtil.kt
@@ -12,6 +12,7 @@ import cc.shinichi.library.tool.common.Print.d
 import cc.shinichi.library.tool.ui.PhoneUtil
 import java.io.*
 import java.util.*
+import kotlin.math.max
 
 /**
  * @author 工藤
@@ -166,8 +167,12 @@ object ImageUtil {
 
     fun getImageMaxZoomScale(context: Context, imagePath: String): Float {
         val wh = getWidthHeight(imagePath)
+        val imageWid = wh[0].toFloat()
         val imageHei = wh[1].toFloat()
         val phoneHei = PhoneUtil.getPhoneHei(context.applicationContext).toFloat()
+        if (imageWid >= 2560) {
+            return phoneHei * 4f / imageHei
+        }
         return phoneHei * 2f / imageHei
     }
 
@@ -182,7 +187,8 @@ object ImageUtil {
         val wh = getWidthHeight(imagePath)
         val imageWid = wh[0].toFloat()
         val imageHei = wh[1].toFloat()
-        return imageHei / imageWid
+        val phoneWid = PhoneUtil.getPhoneWid(context.applicationContext).toFloat()
+        return max(imageHei / imageWid, phoneWid * 2f / imageWid)
     }
 
     fun getLongImageDoubleZoomScale(context: Context, imagePath: String): Float {
@@ -196,7 +202,8 @@ object ImageUtil {
         val wh = getWidthHeight(imagePath)
         val imageWid = wh[0].toFloat()
         val imageHei = wh[1].toFloat()
-        return imageWid / imageHei
+        val phoneHei = PhoneUtil.getPhoneHei(context.applicationContext).toFloat()
+        return max(imageWid / imageHei, phoneHei * 2f / imageHei)
     }
 
     fun getWideImageDoubleScale(context: Context, imagePath: String): Float {
diff --git a/sample/build.gradle b/sample/build.gradle
index ed293cf..723d045 100644
--- a/sample/build.gradle
+++ b/sample/build.gradle
@@ -8,8 +8,8 @@ android {
         applicationId "cc.shinichi.bigimageviewpager"
         minSdkVersion 14
         targetSdkVersion 32
-        versionCode 713
-        versionName "androidx-7.1.3"
+        versionCode 714
+        versionName "androidx-7.1.4"
     }
     buildTypes {
         release {
@@ -57,6 +57,6 @@ dependencies {
     annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
     implementation 'com.github.bumptech.glide:okhttp3-integration:4.11.0'
     // library
-//     implementation 'com.github.SherlockGougou:BigImageViewPager:androidx-7.1.3'
+//     implementation 'com.github.SherlockGougou:BigImageViewPager:androidx-7.1.4'
     implementation project(':library')
 }
\ No newline at end of file