use media_gallery plugin

example/android/app/src/main/AndroidManifest.xml

@@ -6,10 +6,14 @@
          additional functionality it is fine to subclass or reimplement
          FlutterApplication and put your custom class here. -->
     <uses-permission android:name="android.permission.INTERNET"/>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <application
         android:name=".Application"
         android:label="ChatSample"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:requestLegacyExternalStorage="true"
+        >
         <activity
             android:name=".MainActivity"
             android:launchMode="singleTop"

example/ios/Podfile.lock

@@ -38,7 +38,7 @@ PODS:
   - Firebase/Messaging (6.33.0):
     - Firebase/CoreOnly
     - FirebaseMessaging (~> 4.7.0)
-  - firebase_core (0.5.1):
+  - firebase_core (0.5.2):
     - Firebase/CoreOnly (~> 6.33.0)
     - Flutter
   - firebase_messaging (7.0.3):
@@ -113,6 +113,8 @@ PODS:
   - nanopb/encode (1.30906.0)
   - path_provider (0.0.1):
     - Flutter
+  - photo_gallery (0.0.1):
+    - Flutter
   - PromisesObjC (1.2.11)
   - Protobuf (3.13.0)
   - SDWebImage (5.9.4):
@@ -163,6 +165,7 @@ DEPENDENCIES:
   - flutter_local_notifications (from `.symlinks/plugins/flutter_local_notifications/ios`)
   - image_picker (from `.symlinks/plugins/image_picker/ios`)
   - path_provider (from `.symlinks/plugins/path_provider/ios`)
+  - photo_gallery (from `.symlinks/plugins/photo_gallery/ios`)
   - shared_preferences (from `.symlinks/plugins/shared_preferences/ios`)
   - sqflite (from `.symlinks/plugins/sqflite/ios`)
   - sqlite3_flutter_libs (from `.symlinks/plugins/sqlite3_flutter_libs/ios`)
@@ -214,6 +217,8 @@ EXTERNAL SOURCES:
     :path: ".symlinks/plugins/image_picker/ios"
   path_provider:
     :path: ".symlinks/plugins/path_provider/ios"
+  photo_gallery:
+    :path: ".symlinks/plugins/photo_gallery/ios"
   shared_preferences:
     :path: ".symlinks/plugins/shared_preferences/ios"
   sqflite:
@@ -232,7 +237,7 @@ SPEC CHECKSUMS:
   DKPhotoGallery: fdfad5125a9fdda9cc57df834d49df790dbb4179
   file_picker: 3e6c3790de664ccf9b882732d9db5eaf6b8d4eb1
   Firebase: 8db6f2d1b2c5e2984efba4949a145875a8f65fe5
-  firebase_core: aa25a5dc6b492ecab37587c53d8420135f0cac90
+  firebase_core: 350ba329d1641211bc6183a3236893cafdacfea7
   firebase_messaging: 0aea2cd5885b65e19ede58ee3507f485c992cc75
   FirebaseCore: d889d9e12535b7f36ac8bfbf1713a0836a3012cd
   FirebaseCoreDiagnostics: 770ac5958e1372ce67959ae4b4f31d8e127c3ac1
@@ -250,6 +255,7 @@ SPEC CHECKSUMS:
   image_picker: 9c3312491f862b28d21ecd8fdf0ee14e601b3f09
   nanopb: 59317e09cf1f1a0af72f12af412d54edf52603fc
   path_provider: abfe2b5c733d04e238b0d8691db0cfd63a27a93c
+  photo_gallery: 9f95e57747cd22c10676ece3660d1ffe6c603ee5
   PromisesObjC: 8c196f5a328c2cba3e74624585467a557dcb482f
   Protobuf: 3dac39b34a08151c6d949560efe3f86134a3f748
   SDWebImage: b69257f4ab14e9b6a2ef53e910fdf914d8f757c1

example/ios/Runner.xcodeproj/project.pbxproj

@@ -328,6 +328,7 @@
 				"${BUILT_PRODUCTS_DIR}/image_picker/image_picker.framework",
 				"${BUILT_PRODUCTS_DIR}/nanopb/nanopb.framework",
 				"${BUILT_PRODUCTS_DIR}/path_provider/path_provider.framework",
+				"${BUILT_PRODUCTS_DIR}/photo_gallery/photo_gallery.framework",
 				"${BUILT_PRODUCTS_DIR}/shared_preferences/shared_preferences.framework",
 				"${BUILT_PRODUCTS_DIR}/sqflite/sqflite.framework",
 				"${BUILT_PRODUCTS_DIR}/sqlite3/sqlite3.framework",
@@ -357,6 +358,7 @@
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/image_picker.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/nanopb.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/path_provider.framework",
+				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/photo_gallery.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/shared_preferences.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/sqflite.framework",
 				"${TARGET_BUILD_DIR}/${FRAMEWORKS_FOLDER_PATH}/sqlite3.framework",

example/pubspec.yaml

@@ -1,7 +1,7 @@
 name: example
 description: A new Flutter project.
 
-version: 1.0.43+45
+version: 1.0.44+46
 
 environment:
   sdk: ">=2.2.2 <3.0.0"