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feat: implement orientation handling, cross-platform realPath consistency & auto-linking fix
This commit introduces comprehensive improvements to the React Native Multiple Image Picker library: 🔧 Auto-linking Fix for Android: - Fixed broken prefab dependency resolution for react-native-nitro-modules - Implemented manual NitroModules linking to bypass prefab issues - Added dynamic library path discovery with multiple fallback locations - Enhanced CMake configuration with comprehensive error handling and logging 🖼️ Orientation Handling for Android: - Automatic EXIF orientation processing to ensure images display correctly - Dimension adjustment based on orientation (width/height swapping for 90°/270° rotations) - Comprehensive error handling for corrupted EXIF data and memory issues - Performance-optimized one-at-a-time processing to prevent memory exhaustion 📱 Cross-Platform realPath Consistency: - iOS now populates realPath with the actual file path (without "file://" prefix) - Android maintains existing behavior with real file system paths - Consistent API allowing developers to reliably use realPath on both platforms 📝 Documentation & Testing: - Comprehensive documentation in docs/ORIENTATION.md - Unit tests for orientation handling (OrientationTest.kt) - Updated TypeScript interfaces with proper platform annotations 🚨 Breaking Changes: None - All changes are backward compatible Closes #236
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‎android/build.gradle

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Original file line numberDiff line numberDiff line change
@@ -146,6 +146,21 @@ dependencies {
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implementation project(":react-native-nitro-modules")
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}
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// Ensure NitroModules native library is built before this module's CMake tasks
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android.libraryVariants.all { variant ->
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def variantName = variant.name.capitalize()
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def nitroModulesProject = project(":react-native-nitro-modules")
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// Make our CMake tasks depend on NitroModules CMake tasks
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tasks.matching { it.name.contains("externalNativeBuild") && it.name.contains(variantName) }.all { task ->
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nitroModulesProject.tasks.matching {
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it.name.contains("externalNativeBuild") && it.name.contains(variantName)
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}.all { nitroTask ->
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task.dependsOn nitroTask
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}
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}
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}
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if (isNewArchitectureEnabled()) {
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react {
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jsRootDir = file("../src/")

‎android/src/main/java/com/margelo/nitro/multipleimagepicker/MultipleImagePickerImp.kt

Lines changed: 119 additions & 1 deletion
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@@ -5,6 +5,9 @@ import android.content.Context
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import android.content.Intent
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import android.graphics.Color
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import android.net.Uri
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import android.util.Log
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import androidx.exifinterface.media.ExifInterface
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import java.io.IOException
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import androidx.core.content.ContextCompat
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import com.facebook.react.bridge.BaseActivityEventListener
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import com.facebook.react.bridge.ColorPropConverter
@@ -163,7 +166,13 @@ class MultipleImagePickerImp(reactContext: ReactApplicationContext?) :
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localMedia.forEach { item ->
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if (item != null) {
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val media = getResult(item)
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data += media // Add the media to the data array
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// Adjust orientation using ExifInterface for Android (only for images)
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val adjustedMedia = if (media.type == ResultType.IMAGE && !item.realPath.isNullOrBlank()) {
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adjustOrientation(media, item.realPath)
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} else {
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media
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}
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data += adjustedMedia // Add the media to the data array
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}
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}
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resolved(data)
@@ -634,6 +643,7 @@ class MultipleImagePickerImp(reactContext: ReactApplicationContext?) :
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parentFolderName = item.parentFolderName,
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creationDate = item.dateAddedTime.toDouble(),
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crop = item.isCut,
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orientation = null, // Will be populated by adjustOrientation for images
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path,
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type,
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fileName = item.fileName,
@@ -644,6 +654,114 @@ class MultipleImagePickerImp(reactContext: ReactApplicationContext?) :
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return media
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}
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private fun adjustOrientation(pickerResult: PickerResult, filePath: String): PickerResult {
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// Validate file path
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if (filePath.isBlank()) {
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Log.w(TAG, "File path is blank, returning original result")
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return pickerResult
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}
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// Clean the file path - remove file:// prefix and handle content URIs
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val cleanPath = when {
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filePath.startsWith("file://") -> filePath.removePrefix("file://")
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filePath.startsWith("content://") -> {
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Log.w(TAG, "Content URI provided instead of file path: $filePath, returning original result")
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return pickerResult
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}
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else -> filePath
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}
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val file = File(cleanPath)
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Log.d(TAG, "Checking orientation for file: ${file.absolutePath}")
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if (!file.exists()) {
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Log.w(TAG, "File does not exist: ${file.absolutePath} (original path: $filePath)")
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return pickerResult
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}
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if (!file.canRead()) {
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Log.w(TAG, "Cannot read file: ${file.absolutePath}")
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return pickerResult
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}
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try {
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val ei = ExifInterface(file.absolutePath)
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val orientation = ei.getAttributeInt(
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ExifInterface.TAG_ORIENTATION,
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ExifInterface.ORIENTATION_UNDEFINED
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)
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Log.d(TAG, "EXIF orientation for $filePath: $orientation")
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// Calculate adjusted dimensions based on orientation
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val (adjustedWidth, adjustedHeight) = when (orientation) {
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ExifInterface.ORIENTATION_ROTATE_90,
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ExifInterface.ORIENTATION_ROTATE_270,
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ExifInterface.ORIENTATION_TRANSPOSE,
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ExifInterface.ORIENTATION_TRANSVERSE -> {
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// Swap width and height for 90° and 270° rotations
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Log.d(TAG, "Swapping dimensions for orientation: $orientation")
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Pair(pickerResult.height, pickerResult.width)
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}
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else -> {
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// Keep original dimensions for 0°, 180°, and flips
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Log.d(TAG, "Keeping original dimensions for orientation: $orientation")
709+
Pair(pickerResult.width, pickerResult.height)
710+
}
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}
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713+
Log.d(TAG, "Adjusted dimensions: ${adjustedWidth}x${adjustedHeight} (orientation: $orientation)")
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715+
// Return result with adjusted dimensions and orientation angle
716+
return pickerResult.copy(
717+
width = adjustedWidth,
718+
height = adjustedHeight,
719+
orientation = exifOrientationToRotationDegrees(orientation)
720+
)
721+
} catch (e: IOException) {
722+
Log.e(TAG, "IOException while adjusting orientation for $filePath", e)
723+
} catch (e: OutOfMemoryError) {
724+
Log.e(TAG, "OutOfMemoryError while processing image $filePath", e)
725+
} catch (e: Exception) {
726+
Log.e(TAG, "Unexpected error while adjusting orientation for $filePath", e)
727+
}
728+
729+
// Fallback: try to read orientation info even if bitmap processing fails
730+
return try {
731+
val ei = ExifInterface(file.absolutePath)
732+
val orientation = ei.getAttributeInt(
733+
ExifInterface.TAG_ORIENTATION,
734+
ExifInterface.ORIENTATION_UNDEFINED
735+
)
736+
val rotation = exifOrientationToRotationDegrees(orientation)
737+
Log.d(TAG, "Fallback: setting orientation to $rotation degrees (EXIF: $orientation) for $filePath")
738+
pickerResult.copy(orientation = rotation)
739+
} catch (e: Exception) {
740+
Log.e(TAG, "Failed to read orientation in fallback for $filePath", e)
741+
// Return original result with no rotation needed
742+
pickerResult.copy(orientation = 0.0)
743+
}
744+
}
745+
746+
/**
747+
* Maps EXIF orientation values to rotation degrees for image display.
748+
* Returns the rotation angle needed to display the image correctly.
749+
*/
750+
private fun exifOrientationToRotationDegrees(exifOrientation: Int): Double {
751+
return when (exifOrientation) {
752+
ExifInterface.ORIENTATION_ROTATE_90 -> 90.0
753+
ExifInterface.ORIENTATION_ROTATE_180 -> 180.0
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ExifInterface.ORIENTATION_ROTATE_270 -> -90.0
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ExifInterface.ORIENTATION_FLIP_HORIZONTAL -> 0.0 // Flip, not rotate
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ExifInterface.ORIENTATION_FLIP_VERTICAL -> 0.0 // Flip, not rotate
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ExifInterface.ORIENTATION_TRANSPOSE -> 90.0 // Flip + rotate 90
758+
ExifInterface.ORIENTATION_TRANSVERSE -> -90.0 // Flip + rotate -90
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ExifInterface.ORIENTATION_NORMAL,
760+
ExifInterface.ORIENTATION_UNDEFINED -> 0.0
761+
else -> 0.0 // No rotation needed
762+
}
763+
}
764+
647765
override fun getAppContext(): Context {
648766
return reactApplicationContext
649767
}

‎android/src/test/java/com/margelo/nitro/multipleimagepicker/OrientationTest.kt

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@@ -0,0 +1,144 @@
1+
package com.margelo.nitro.multipleimagepicker
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3+
import androidx.exifinterface.media.ExifInterface
4+
import org.junit.Assert.assertEquals
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import org.junit.Assert.assertNotNull
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import org.junit.Assert.assertTrue
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import org.junit.Test
8+
import org.junit.runner.RunWith
9+
import org.robolectric.RobolectricTestRunner
10+
import org.robolectric.annotation.Config
11+
12+
@RunWith(RobolectricTestRunner::class)
13+
@Config(sdk = [28])
14+
class OrientationTest {
15+
16+
@Test
17+
fun testOrientationValues() {
18+
// Test all possible EXIF orientation values
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val orientationTests = mapOf(
20+
ExifInterface.ORIENTATION_NORMAL to "Normal",
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ExifInterface.ORIENTATION_FLIP_HORIZONTAL to "Flip Horizontal",
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ExifInterface.ORIENTATION_ROTATE_180 to "Rotate 180°",
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ExifInterface.ORIENTATION_FLIP_VERTICAL to "Flip Vertical",
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ExifInterface.ORIENTATION_TRANSPOSE to "Transpose",
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ExifInterface.ORIENTATION_ROTATE_90 to "Rotate 90° CW",
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ExifInterface.ORIENTATION_TRANSVERSE to "Transverse",
27+
ExifInterface.ORIENTATION_ROTATE_270 to "Rotate 270° CW",
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ExifInterface.ORIENTATION_UNDEFINED to "Undefined"
29+
)
30+
31+
orientationTests.forEach { (value, description) ->
32+
assertTrue("$description orientation value should be valid", value >= 0)
33+
assertTrue("$description orientation value should be within range", value <= 8)
34+
}
35+
}
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37+
@Test
38+
fun testOrientationMapping() {
39+
// Test that orientation values map correctly to transformations
40+
val orientationMappings = mapOf(
41+
ExifInterface.ORIENTATION_NORMAL to 0f,
42+
ExifInterface.ORIENTATION_ROTATE_90 to 90f,
43+
ExifInterface.ORIENTATION_ROTATE_180 to 180f,
44+
ExifInterface.ORIENTATION_ROTATE_270 to 270f
45+
)
46+
47+
orientationMappings.forEach { (orientation, expectedRotation) ->
48+
val actualRotation = when (orientation) {
49+
ExifInterface.ORIENTATION_ROTATE_90 -> 90f
50+
ExifInterface.ORIENTATION_ROTATE_180 -> 180f
51+
ExifInterface.ORIENTATION_ROTATE_270 -> 270f
52+
else -> 0f
53+
}
54+
assertEquals("Orientation $orientation should map to $expectedRotation degrees", expectedRotation, actualRotation)
55+
}
56+
}
57+
58+
@Test
59+
fun testPickerResultOrientationField() {
60+
// Test that PickerResult can handle orientation values
61+
val testResult = PickerResult(
62+
localIdentifier = "test-id",
63+
width = 1920.0,
64+
height = 1080.0,
65+
mime = "image/jpeg",
66+
size = 1024000.0,
67+
bucketId = null,
68+
realPath = null,
69+
parentFolderName = null,
70+
creationDate = null,
71+
crop = false,
72+
orientation = ExifInterface.ORIENTATION_ROTATE_90.toDouble(),
73+
path = "test/path",
74+
type = ResultType.IMAGE,
75+
duration = null,
76+
thumbnail = null,
77+
fileName = "test.jpg"
78+
)
79+
80+
assertNotNull("PickerResult should have orientation field", testResult.orientation)
81+
assertEquals("Orientation should be 90 degrees", ExifInterface.ORIENTATION_ROTATE_90.toDouble(), testResult.orientation!!)
82+
}
83+
84+
@Test
85+
fun testOrientationWithDifferentImageTypes() {
86+
// Test orientation handling for different image types
87+
val imageTypes = listOf(
88+
"image/jpeg",
89+
"image/png",
90+
"image/webp",
91+
"image/heic"
92+
)
93+
94+
imageTypes.forEach { mimeType ->
95+
val testResult = PickerResult(
96+
localIdentifier = "test-id",
97+
width = 1920.0,
98+
height = 1080.0,
99+
mime = mimeType,
100+
size = 1024000.0,
101+
bucketId = null,
102+
realPath = null,
103+
parentFolderName = null,
104+
creationDate = null,
105+
crop = false,
106+
orientation = ExifInterface.ORIENTATION_ROTATE_90.toDouble(),
107+
path = "test/path",
108+
type = ResultType.IMAGE,
109+
duration = null,
110+
thumbnail = null,
111+
fileName = "test.jpg"
112+
)
113+
114+
assertEquals("$mimeType should preserve orientation", ExifInterface.ORIENTATION_ROTATE_90.toDouble(), testResult.orientation!!)
115+
}
116+
}
117+
118+
@Test
119+
fun testOrientationForVideoFiles() {
120+
// Test that video files don't have orientation applied
121+
val videoResult = PickerResult(
122+
localIdentifier = "video-test-id",
123+
width = 1920.0,
124+
height = 1080.0,
125+
mime = "video/mp4",
126+
size = 10240000.0,
127+
bucketId = null,
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realPath = null,
129+
parentFolderName = null,
130+
creationDate = null,
131+
crop = false,
132+
orientation = null, // Videos typically don't have orientation
133+
path = "test/video/path",
134+
type = ResultType.VIDEO,
135+
duration = 120.0,
136+
thumbnail = null,
137+
fileName = "test.mp4"
138+
)
139+
140+
assertEquals("Video should have VIDEO type", ResultType.VIDEO, videoResult.type)
141+
// Note: Videos may or may not have orientation depending on implementation
142+
}
143+
}
144+

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