diff --git a/src/pages/devicesSearch/ocrSearch.nvue b/src/pages/devicesSearch/ocrSearch.nvue
index 29c8a71..2034e4a 100644
--- a/src/pages/devicesSearch/ocrSearch.nvue
+++ b/src/pages/devicesSearch/ocrSearch.nvue
@@ -164,11 +164,15 @@ export default {
       showFocusIndicator: false,
       focusIndicatorStyle: {},
       autoFocusEnabled: true,
-      focusTimeout: null
+      focusTimeout: null,
+      // 设备信息
+      systemInfo: null
     }
   },
   onShow() {
     this.initializeCordova();
+    // 获取设备信息用于相机配置
+    this.getDeviceInfo();
   },
   onHide() {
     this.cleanup();
@@ -177,6 +181,36 @@ export default {
     this.cleanup();
   },
   methods: {
+    // 获取设备信息
+    getDeviceInfo() {
+      try {
+        const systemInfo = uni.getSystemInfoSync();
+        console.log('设备信息:', systemInfo);
+        this.systemInfo = systemInfo;
+      } catch (error) {
+        console.error('获取设备信息失败:', error);
+      }
+    },
+
+    // 设置全屏模式（仅Android）
+    setFullscreenMode(enable) {
+      try {
+        // #ifdef APP-PLUS
+        if (this.systemInfo && this.systemInfo.platform === 'android') {
+          if (enable) {
+            // 隐藏状态栏和导航栏
+            plus.navigator.setFullscreen(true);
+          } else {
+            // 恢复状态栏和导航栏
+            plus.navigator.setFullscreen(false);
+          }
+        }
+        // #endif
+      } catch (error) {
+        console.error('设置全屏模式失败:', error);
+      }
+    },
+
     // 初始化Cordova - 改进版本
     initializeCordova() {
       console.log('开始初始化Cordova...');
@@ -289,6 +323,9 @@ export default {
         }
       }
       try {
+        // 在Android上尝试全屏模式
+        this.setFullscreenMode(true);
+        
         // 显示相机界面
         this.showCamera = true;
         // 等待UI更新
@@ -298,6 +335,7 @@ export default {
       } catch (error) {
         console.error('打开相机失败:', error);
         this.showCamera = false;
+        this.setFullscreenMode(false);
         uni.showToast({
           title: error.message || '打开相机失败',
           icon: 'none',
@@ -316,18 +354,50 @@ export default {
           return;
         }
 
-        // 获取屏幕尺寸
-        const screenWidth = uni.getSystemInfoSync().screenWidth;
-        const screenHeight = uni.getSystemInfoSync().screenHeight;
+        // 获取屏幕尺寸和状态栏高度
+        const systemInfo = this.systemInfo || uni.getSystemInfoSync();
+        const screenWidth = systemInfo.screenWidth;
+        const screenHeight = systemInfo.screenHeight;
+        const statusBarHeight = systemInfo.statusBarHeight || 0;
+        
+        // 判断平台和设备，动态调整配置
+        let cameraY = 0;
+        let cameraHeight = screenHeight;
+        let toBack = false;
+        
+        // Android设备处理导航栏遮挡问题
+        if (systemInfo.platform === 'android') {
+          // 对于Android，尝试避开导航栏
+          const navigationBarHeight = 44;
+          cameraY = statusBarHeight + navigationBarHeight;
+          cameraHeight = screenHeight - cameraY;
+          toBack = false;
+        } else {
+          // iOS或其他平台，使用全屏预览
+          cameraY = 0;
+          cameraHeight = screenHeight;
+          toBack = true;
+        }
+        
+        console.log('屏幕信息:', {
+          platform: systemInfo.platform,
+          screenWidth, 
+          screenHeight, 
+          statusBarHeight, 
+          cameraY, 
+          cameraHeight,
+          toBack
+        });
+        
         const options = {
           x: 0,
-          y: 0,
-          width: window.innerWidth || 375,
-          height: window.innerHeight || 667,
+          y: cameraY,
+          width: screenWidth,
+          height: cameraHeight,
           camera: CameraPreview.CAMERA_DIRECTION?.BACK || 'back',
           tapPhoto: false,
           previewDrag: false,
-          toBack: true,  // 设置为 true，让相机显示在背景
+          toBack: toBack,  // 根据平台动态设置
           alpha: 1,
           tapFocus: true,  // 启用点击聚焦
           disableExifHeaderStripping: false
@@ -513,6 +583,8 @@ export default {
         this.showCamera = false;
         this.cameraStarted = false;
         this.resetFocusState();
+        // 恢复全屏模式
+        this.setFullscreenMode(false);
       }
     },
 
@@ -894,6 +966,8 @@ export default {
       }
       // 重置聚焦状态
       this.resetFocusState();
+      // 恢复全屏模式
+      this.setFullscreenMode(false);
     }
   }
 }
@@ -946,13 +1020,13 @@ export default {
   left: 0;
   width: 100vw;
   height: 100vh;
-  background-color: transparent;
+  background-color: #000000;
   z-index: 99999;
 }
 
 .top-tip {
   position: absolute;
-  top: 80rpx;
+  top: 120rpx;
   left: 50%;
   transform: translateX(-50%);
   z-index: 10;
@@ -972,7 +1046,7 @@ export default {
 /* 聚焦状态提示 */
 .focus-tip {
   position: absolute;
-  top: 160rpx;
+  top: 200rpx;
   left: 50%;
   transform: translateX(-50%);
   z-index: 10;