Чат, вложения

2026-04-14 21:53:44 +03:00
parent 118f8b8971
commit 58fdf1aca1
22 changed files with 799 additions and 125 deletions
@@ -0,0 +1,59 @@
+package core.utils
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.BitmapFactory
+import android.graphics.Matrix
+import android.net.Uri
+import java.io.File
+import java.io.FileOutputStream
+import java.util.UUID
+
+object ImageUtils {
+    fun compressImage(context: Context, uri: Uri, maxWidth: Int = 1280, maxHeight: Int = 1280, quality: Int = 80): File? {
+        return try {
+            val inputStream = context.contentResolver.openInputStream(uri)
+            val options = BitmapFactory.Options().apply {
+                inJustDecodeBounds = true
+            }
+            BitmapFactory.decodeStream(inputStream, null, options)
+            inputStream?.close()
+
+            var inSampleSize = 1
+            if (options.outHeight > maxHeight || options.outWidth > maxWidth) {
+                val halfHeight = options.outHeight / 2
+                val halfWidth = options.outWidth / 2
+                while (halfHeight / inSampleSize >= maxHeight && halfWidth / inSampleSize >= maxWidth) {
+                    inSampleSize *= 2
+                }
+            }
+
+            val decodeOptions = BitmapFactory.Options().apply {
+                inSampleSize = inSampleSize
+            }
+            val finalInputStream = context.contentResolver.openInputStream(uri)
+            var bitmap = BitmapFactory.decodeStream(finalInputStream, null, decodeOptions)
+            finalInputStream?.close()
+
+            if (bitmap == null) return null
+
+            // Resize if still too large
+            if (bitmap.width > maxWidth || bitmap.height > maxHeight) {
+                val scale = Math.min(maxWidth.toFloat() / bitmap.width, maxHeight.toFloat() / bitmap.height)
+                val matrix = Matrix().apply { postScale(scale, scale) }
+                bitmap = Bitmap.createBitmap(bitmap, 0, 0, bitmap.width, bitmap.height, matrix, true)
+            }
+
+            val file = File(context.cacheDir, "compressed_${UUID.randomUUID()}.jpg")
+            val out = FileOutputStream(file)
+            bitmap.compress(Bitmap.CompressFormat.JPEG, quality, out)
+            out.flush()
+            out.close()
+            
+            file
+        } catch (e: Exception) {
+            e.printStackTrace()
+            null
+        }
+    }
+}