修改

src/pages/devicesSearch/ocrSearch.vue

@@ -186,7 +186,9 @@ export default {
       isOverToday: false,
       isShow: false,
       message: '',
-      position: 'bottom' // 'top' | 'bottom'
+      position: 'bottom',
+      screenHeight: null,
+      screenWidth: null,
     }
   },
   onBackPress(options) {
@@ -244,6 +246,11 @@ export default {
         const systemInfo = uni.getSystemInfoSync();
         console.log('设备信息:', systemInfo);
         this.systemInfo = systemInfo;
+        // 获取屏幕高度和宽度
+        const screenHeight = systemInfo.screenHeight; // 屏幕高度：1000
+        const screenWidth = systemInfo.screenWidth;   // 屏幕宽度：600
+        this.screenHeight = screenHeight;
+        this.screenWidth = screenWidth;
       } catch (error) {
         console.error('获取设备信息失败:', error);
       }
@@ -510,7 +517,7 @@ export default {
         // 拍照前先进行聚焦
         console.log('拍照前聚焦...');
         console.log('开始拍照...');
-        CameraPreview.takePicture({width:640, height:540, quality: 50}, async (base64PictureData) => {
+        CameraPreview.takePicture({width:this.screenWidth, height:this.screenHeight, quality: 50}, async (base64PictureData) => {
           console.log('拍照返回数据',base64PictureData);
           await this.processImage(base64PictureData);
         });