⚗️ Experimenting camera picker.

Related to #52 .

Author: AlexV525

example/lib/pages/multi_assets_page.dart

@@ -74,6 +74,39 @@ class _MultiAssetsPageState extends State<MultiAssetsPage> {
             );
           },
         ),
+        PickMethodModel(
+          icon: '📷',
+          name: 'Pick from camera',
+          description: 'Allow pick asset through camera.',
+          method: (
+            BuildContext context,
+            List<AssetEntity> assets,
+          ) async {
+            return await AssetPicker.pickAssets(
+              context,
+              maxAssets: maxAssetsCount,
+              selectedAssets: assets,
+              requestType: RequestType.common,
+              customItemPosition: CustomItemPosition.prepend,
+              customItemBuilder: (BuildContext context) {
+                return GestureDetector(
+                  behavior: HitTestBehavior.opaque,
+                  onTap: () async {
+                    final AssetEntity result =
+                        await AssetPicker.pickFromCamera(context);
+                    if (result != null) {
+                      Navigator.of(context)
+                          .pop(<AssetEntity>[...assets, result]);
+                    }
+                  },
+                  child: const Center(
+                    child: Icon(Icons.camera_enhance, size: 42.0),
+                  ),
+                );
+              },
+            );
+          },
+        ),
         PickMethodModel(
           icon: '📹',
           name: 'Common picker',
@@ -147,7 +180,7 @@ class _MultiAssetsPageState extends State<MultiAssetsPage> {
               maxAssets: maxAssetsCount,
               selectedAssets: assets,
               requestType: RequestType.common,
-              customItemPosition: CustomItemPosition.append,
+              customItemPosition: CustomItemPosition.prepend,
               customItemBuilder: (BuildContext context) {
                 return const Center(child: Text('Custom Widget'));
               },

example/lib/pages/single_assets_page.dart

@@ -74,6 +74,38 @@ class _SingleAssetPageState extends State<SingleAssetPage> {
             );
           },
         ),
+        PickMethodModel(
+          icon: '📷',
+          name: 'Pick from camera',
+          description: 'Allow pick asset through camera.',
+          method: (
+            BuildContext context,
+            List<AssetEntity> assets,
+          ) async {
+            return await AssetPicker.pickAssets(
+              context,
+              maxAssets: maxAssetsCount,
+              selectedAssets: assets,
+              requestType: RequestType.common,
+              customItemPosition: CustomItemPosition.prepend,
+              customItemBuilder: (BuildContext context) {
+                return GestureDetector(
+                  behavior: HitTestBehavior.opaque,
+                  onTap: () async {
+                    final AssetEntity result =
+                        await AssetPicker.pickFromCamera(context);
+                    if (result != null) {
+                      Navigator.of(context).pop(<AssetEntity>[result]);
+                    }
+                  },
+                  child: const Center(
+                    child: Icon(Icons.camera_enhance, size: 42.0),
+                  ),
+                );
+              },
+            );
+          },
+        ),
         PickMethodModel(
           icon: '📹',
           name: 'Common picker',

example/pubspec.yaml

@@ -10,7 +10,6 @@ dependencies:
   flutter:
     sdk: flutter
 
-  camera: ">=0.5.8+2 <2.0.0"
   wechat_assets_picker:
     path: ../
 

lib/src/constants/constants.dart

@@ -2,6 +2,8 @@
 /// [Author] Alex (https://github.com/Alex525)
 /// [Date] 2020/3/31 16:02
 ///
+import 'package:flutter/widgets.dart';
+
 import 'constants.dart';
 
 export 'package:flutter_common_exports/flutter_common_exports.dart';
@@ -16,6 +18,8 @@ export 'enums.dart';
 class Constants {
   const Constants._();
 
+  static GlobalKey pickerKey = GlobalKey();
+
   static TextDelegate textDelegate = DefaultTextDelegate();
   static SortPathDelegate sortPathDelegate = SortPathDelegate.common;
 }

lib/src/widget/asset_picker.dart

@@ -18,6 +18,7 @@ import 'package:wechat_assets_picker/wechat_assets_picker.dart';
 import '../constants/constants.dart';
 import 'builder/fade_image_builder.dart';
 import 'builder/slide_page_transition_builder.dart';
+import 'camera_picker.dart';
 import 'fixed_appbar.dart';
 
 class AssetPicker extends StatelessWidget {
@@ -89,7 +90,6 @@ class AssetPicker extends StatelessWidget {
   /// 跳转至选择器的静态方法
   static Future<List<AssetEntity>> pickAssets(
     BuildContext context, {
-    Key key,
     int maxAssets = 9,
     int pageSize = 320,
     int pathThumbSize = 200,
@@ -154,7 +154,7 @@ class AssetPicker extends StatelessWidget {
           routeDuration: routeDuration,
         );
         final Widget picker = AssetPicker(
-          key: key,
+          key: Constants.pickerKey,
           provider: provider,
           gridCount: gridCount,
           textDelegate: textDelegate,
@@ -184,6 +184,27 @@ class AssetPicker extends StatelessWidget {
     }
   }
 
+  /// Static method to create [AssetEntity] through camera.
+  /// 通过相机创建 [AssetEntity] 的静态方法
+  static Future<AssetEntity> pickFromCamera(
+    BuildContext context, {
+    bool shouldKeptInLocal = true,
+  }) async {
+    final AssetEntity result = await Navigator.of(
+      context,
+      rootNavigator: true,
+    ).push<AssetEntity>(
+      SlidePageTransitionBuilder<AssetEntity>(
+        builder: CameraPicker(
+          shouldKeptInLocal: shouldKeptInLocal,
+        ),
+        transitionCurve: Curves.easeIn,
+        transitionDuration: const Duration(milliseconds: 300),
+      ),
+    );
+    return result;
+  }
+
   /// Register observe callback with assets changes.
   /// 注册资源（图库）变化的监听回调
   static void registerObserve([ValueChanged<MethodCall> callback]) {