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ocr

This commit is contained in:
hayu 2025-07-31 17:02:45 +08:00
parent 8694a607ff
commit 81d89ca6e7
1 changed files with 108 additions and 97 deletions
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205
src/pages/devicesSearch/ocrSearch.nvue
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@ -77,6 +77,9 @@
</view>
<!-- 相机预览页面 -->
<view v-if="showCamera" class="camera-container">
<!-- 相机预览容器 -->
<view class="camera-preview-container" id="cameraPreview"></view>
<!-- 顶部提示 -->
<view class="top-tip">
<text class="tip-text">请将识别编码置于取景框内，完成扫描</text>
@ -254,47 +257,6 @@ export default {
return null;
},
// 检查相机权限 - 改进版本
async checkCameraPermission() {
return new Promise((resolve) => {
// 检查权限插件是否可用
const permissions = window.cordova?.plugins?.permissions;
if (!permissions) {
console.warn('权限插件不可用，跳过权限检查');
resolve(true);
return;
}
permissions.checkPermission(
permissions.CAMERA,
(status) => {
if (status.hasPermission) {
console.log('相机权限已授予');
resolve(true);
} else {
console.log('请求相机权限...');
permissions.requestPermission(
permissions.CAMERA,
(status) => {
console.log('权限请求结果:', status.hasPermission);
resolve(status.hasPermission);
},
(error) => {
console.error('请求权限失败:', error);
resolve(false);
}
);
}
},
(error) => {
console.error('检查权限失败:', error);
resolve(true); // 权限检查失败时假设有权限
}
);
});
},
// 打开相机 - 改进版本
async openCamera() {
console.log('尝试打开相机...');
@ -314,17 +276,6 @@ export default {
}
try {
// 检查权限
const hasPermission = await this.checkCameraPermission();
if (!hasPermission) {
uni.showToast({
title: '需要相机权限才能使用此功能',
icon: 'none',
duration: 2000
});
return;
}
// 显示相机界面
this.showCamera = true;
@ -348,46 +299,73 @@ export default {
// 初始化相机 - 改进版本
async initCamera() {
return new Promise((resolve, reject) => {
console.log('初始化相机预览...');
const CameraPreview = this.getCameraPlugin();
if (!CameraPreview) {
reject(new Error('相机插件不可用'));
return;
}
// 获取屏幕尺寸
const screenWidth = uni.getSystemInfoSync().screenWidth;
const screenHeight = uni.getSystemInfoSync().screenHeight;
const options = {
x: 0,
y: 0,
width: window.innerWidth || 375,
height: window.innerHeight || 667,
camera: CameraPreview.CAMERA_DIRECTION?.BACK || 'back',
tapPhoto: false,
previewDrag: false,
toBack: false, // 改为 false，让相机显示在前面
alpha: 1,
tapFocus: true
};
console.log('相机配置:', options);
CameraPreview.startCamera(
options,
(result) => {
console.log('相机启动成功:', result);
this.cameraStarted = true;
resolve();
},
(error) => {
console.error('相机启动失败:', error);
this.cameraStarted = false;
reject(new Error(`相机启动失败: ${error}`));
// 使用setTimeout确保DOM更新完成
setTimeout(() => {
const query = uni.createSelectorQuery().in(this);
query.select('.camera-preview-container').boundingClientRect(data => {
if (!data) {
reject(new Error('无法获取相机容器尺寸'));
return;
}
);
// 计算实际像素值（某些平台需要px而非rpx）
const pixelRatio = uni.getSystemInfoSync().pixelRatio || 1;
const width = data.width * pixelRatio;
const height = data.height * pixelRatio;
const options = {
x: data.left,
y: data.top,
width: data.width,
height: data.height,
camera: CameraPreview.CAMERA_DIRECTION?.BACK || 'back',
tapPhoto: false,
previewDrag: false,
toBack: true,
alpha: 1,
tapFocus: true
};
console.log('相机配置:', options);
// 先停止已有相机（如果有）
CameraPreview.stopCamera(() => {
// 启动新相机
CameraPreview.startCamera(
options,
() => {
console.log('相机启动成功');
this.cameraStarted = true;
resolve();
},
(error) => {
console.error('相机启动失败:', error);
reject(new Error('相机启动失败'));
}
);
}, () => {
// 即使停止失败也继续启动
CameraPreview.startCamera(
options,
() => {
console.log('相机启动成功');
this.cameraStarted = true;
resolve();
},
(error) => {
console.error('相机启动失败:', error);
reject(new Error('相机启动失败'));
}
);
});
}).exec();
}, 300); // 适当延迟确保DOM更新
});
},
@ -416,18 +394,38 @@ export default {
}
return new Promise((resolve) => {
CameraPreview.stopCamera(
() => {
console.log('相机已停止');
this.cameraStarted = false;
resolve();
},
(error) => {
console.error('停止相机失败:', error);
this.cameraStarted = false;
resolve(); // 即使失败也继续
}
);
// 先隐藏相机预览
CameraPreview.hideCamera(() => {
console.log('相机已隐藏');
// 然后停止相机
CameraPreview.stopCamera(
() => {
console.log('相机已停止');
this.cameraStarted = false;
resolve();
},
(error) => {
console.error('停止相机失败:', error);
this.cameraStarted = false;
resolve();
}
);
}, (error) => {
console.error('隐藏相机失败:', error);
// 即使隐藏失败也继续停止
CameraPreview.stopCamera(
() => {
console.log('相机已停止');
this.cameraStarted = false;
resolve();
},
(error) => {
console.error('停止相机失败:', error);
this.cameraStarted = false;
resolve();
}
);
});
});
},
@ -662,6 +660,19 @@ export default {
</script>
<style>
.camera-preview-container {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: 1; /* 低于其他UI元素 */
}
/* 确保其他UI元素的z-index高于相机预览 */
.top-tip, .viewfinder-container, .bottom-controls {
z-index: 10;
}
.page-container {
display: flex;
height: auto;