添加菜品采集

app/src/main/java/com/sw/dualscreen/utils/ImageUtil.kt

@@ -4,6 +4,12 @@ import android.content.Context
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.net.Uri
+import okhttp3.MediaType.Companion.toMediaTypeOrNull
+import okhttp3.MultipartBody
+import okhttp3.RequestBody
+import java.io.File
+import java.io.FileOutputStream
+import java.io.InputStream
 
 object ImageUtil {
 
@@ -18,4 +24,24 @@ object ImageUtil {
         }
     }
 
+    fun uriToMultipart(context: Context, uri: Uri, partName: String): MultipartBody.Part? {
+        try {
+            val contentResolver = context.contentResolver
+            val inputStream: InputStream = contentResolver.openInputStream(uri) ?: return null
+
+            // 临时文件（避免直接访问SAF文件）
+            val tempFile = File.createTempFile("upload_", ".jpg", context.cacheDir)
+
+            val outputStream = FileOutputStream(tempFile)
+            inputStream.copyTo(outputStream)
+            inputStream.close()
+            outputStream.close()
+
+            val requestFile = RequestBody.create("image/*".toMediaTypeOrNull(), tempFile)
+            return MultipartBody.Part.createFormData(partName, tempFile.name, requestFile)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            return null
+        }
+    }
 }