feat: 写入 EXIF GPS/时间/相机型号/作者，保存时带纬度经度

app/build.gradle.kts

@@ -100,6 +100,9 @@ dependencies {
     // Accompanist permissions
     implementation("com.google.accompanist:accompanist-permissions:0.32.0")
 
+    // ExifInterface
+    implementation("androidx.exifinterface:exifinterface:1.3.7")
+
     // Testing
     testImplementation("junit:junit:4.13.2")
     androidTestImplementation("androidx.test.ext:junit:1.1.5")

app/src/main/java/com/inspection/camera/util/ImageProcessor.kt

@@ -1,6 +1,7 @@
 package com.inspection.camera.util
 
 import android.content.ContentValues
+import android.location.Location
 import android.content.Context
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
@@ -15,7 +16,9 @@ import android.net.Uri
 import android.os.Build
 import android.os.Environment
 import android.provider.MediaStore
+import android.util.Log
 import androidx.compose.ui.graphics.toArgb
+import androidx.exifinterface.media.ExifInterface
 import com.inspection.camera.data.models.ImageItem
 import com.inspection.camera.data.models.ImageQuality
 import com.inspection.camera.data.models.MergeLayoutType
@@ -539,7 +542,9 @@ object ImageProcessor {
         context: Context,
         bitmap: Bitmap,
         fileName: String,
-        quality: Int = 85
+        quality: Int = 85,
+        latitude: Double? = null,
+        longitude: Double? = null
     ): Uri? {
         val contentValues = ContentValues().apply {
             put(MediaStore.Images.Media.DISPLAY_NAME, fileName)
@@ -558,6 +563,8 @@ object ImageProcessor {
                 bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream)
             }
 
+            writeExifData(context, it, latitude, longitude)
+
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                 contentValues.clear()
                 contentValues.put(MediaStore.Images.Media.IS_PENDING, 0)
@@ -567,4 +574,51 @@ object ImageProcessor {
             it
         }
     }
+
+    /**
+     * 写入 EXIF 信息：GPS位置、拍摄时间、相机型号、作者
+     */
+    private fun writeExifData(
+        context: Context,
+        uri: Uri,
+        latitude: Double?,
+        longitude: Double?
+    ) {
+        try {
+            context.contentResolver.openFileDescriptor(uri, "rw")?.use { pfd ->
+                val exif = ExifInterface(pfd.fileDescriptor)
+
+                // 写入 GPS 信息
+                if (latitude != null && longitude != null) {
+                    // 使用 Location 对象包装坐标，避免 API 版本兼容问题
+                    val loc = Location("CheckShot").apply {
+                        this.latitude = latitude
+                        this.longitude = longitude
+                    }
+                    // ExifInterface (AndroidX) 提供了 setGpsInfo(Location) 接口
+                    exif.setGpsInfo(loc)
+                }
+
+                // 写入拍摄时间
+                val dateTimeFormat = SimpleDateFormat("yyyy:MM:dd HH:mm:ss", Locale.getDefault())
+                val dateTimeStr = dateTimeFormat.format(Date())
+                exif.setAttribute(ExifInterface.TAG_DATETIME, dateTimeStr)
+                exif.setAttribute(ExifInterface.TAG_DATETIME_ORIGINAL, dateTimeStr)
+                exif.setAttribute(ExifInterface.TAG_DATETIME_DIGITIZED, dateTimeStr)
+
+                // 写入相机型号（项目名称）
+                // 尽量把 MODEL 设置为项目名称，MAKE 为较通用的相机厂商名
+                exif.setAttribute(ExifInterface.TAG_MAKE, "巡检相机")
+                exif.setAttribute(ExifInterface.TAG_MODEL, "anroid-CheckShot")
+
+                // 写入作者
+                exif.setAttribute(ExifInterface.TAG_ARTIST, "xiaji")
+
+                exif.saveAttributes()
+                Log.d("ImageProcessor", "EXIF data written successfully")
+            }
+        } catch (e: Exception) {
+            Log.e("ImageProcessor", "Failed to write EXIF data", e)
+        }
+    }
 }