From c2425f621aa4076ae371dbb25f665327055472e6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=BE=90=E5=8B=A4=E6=B0=91?= <xuqinmin@bjca.org.cn>
Date: Sat, 9 Nov 2024 17:13:53 +0800
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---
 src/main/ets/utils/FileHelper.ets   | 27 +++++++++++++++++++++++++++
 src/main/ets/utils/PickerHelper.ets |  2 ++
 2 files changed, 29 insertions(+)

diff --git a/src/main/ets/utils/FileHelper.ets b/src/main/ets/utils/FileHelper.ets
index c2bd0b3..bc26baa 100644
--- a/src/main/ets/utils/FileHelper.ets
+++ b/src/main/ets/utils/FileHelper.ets
@@ -3,6 +3,9 @@ import fs, { ListFileOptions, ReadOptions, ReadTextOptions, WriteOptions } from
 import { BusinessError } from '@kit.BasicServicesKit';
 import { StrHelper } from './StrHelper';
 import { hilog } from '@kit.PerformanceAnalysisKit';
+import { image } from '@kit.ImageKit';
+import { buffer } from '@kit.ArkTS';
+import { LogHelper } from './LogHelper';
 
 export class FileHelper {
   private constructor() {
@@ -308,6 +311,30 @@ export class FileHelper {
     return fs.accessSync(path);
   }
 
+  static BmpToBase64(photoUri: string): Promise<string> {
+    const imagePackerApi: image.ImagePacker = image.createImagePacker();
+    const packOpts: image.PackingOption = { format: 'image/jpeg', quality: 100 };
+
+    return new Promise<string>((resolve, reject) => {
+      let file = FileHelper.openSync(photoUri, fs.OpenMode.READ_ONLY)
+      const imageSource = image.createImageSource(file.fd);
+      LogHelper.error('file.fd:' + file.fd)
+
+      imageSource.createPixelMap().then((pixelMap) => {
+        imagePackerApi.packing(pixelMap, packOpts).then((data: ArrayBuffer) => {
+          let buf: buffer.Buffer = buffer.from(data);
+          LogHelper.error('data:' + data)
+          resolve(buf.toString('base64'))
+        }).catch((err: BusinessError) => {
+          LogHelper.error('packing failed with err: ' + JSON.stringify(err));
+          reject(err)
+        })
+      }).catch((err: BusinessError) => {
+        LogHelper.error('createPixelMap failed with err: ' + JSON.stringify(err));
+        reject(err)
+      });
+    })
+  }
 
   /**
    * 打开文件，支持使用URI打开文件。使用Promise异步回调。
diff --git a/src/main/ets/utils/PickerHelper.ets b/src/main/ets/utils/PickerHelper.ets
index 992521c..e2cabcd 100644
--- a/src/main/ets/utils/PickerHelper.ets
+++ b/src/main/ets/utils/PickerHelper.ets
@@ -4,6 +4,7 @@ import { common } from '@kit.AbilityKit';
 import { BusinessError } from '@kit.BasicServicesKit';
 import { hilog } from '@kit.PerformanceAnalysisKit';
 import { photoAccessHelper } from '@kit.MediaLibraryKit';
+import { LogHelper } from './LogHelper';
 
 
 const DOCUMENT_DEFAULT_SELECT_NUMBER: number = 9; //数量
@@ -65,6 +66,7 @@ export class PickerHelper {
       let photoPicker = new photoAccessHelper.PhotoViewPicker();
 
       let photoSelectResult: photoAccessHelper.PhotoSelectResult = await photoPicker.select(options);
+      LogHelper.error(JSON.stringify(photoSelectResult))
       if (photoSelectResult && photoSelectResult.photoUris && photoSelectResult.photoUris.length > 0) {
         return photoSelectResult.photoUris;
       } else {