add pickCamera

lib/photo.dart

 library photo;
 
 import 'dart:async';
+import 'dart:io';
 
 import 'package:flutter/material.dart';
+import 'package:image_picker/image_picker.dart';
 import 'package:photo/src/entity/_theme.dart';
 import 'package:photo/src/ui/page/photo_list_page.dart';
 import 'package:photo/src/ui/page/photo_main_page.dart';
     );
   }
 
+  static Future<File> pickCamera({
+    double maxWidth,
+    double maxHeight,
+    int imageQuality,
+    CameraDevice preferredCameraDevice,
+  }) async {
+    return ImagePicker.pickImage(
+      source: ImageSource.camera,
+      maxWidth: maxWidth,
+      maxHeight: maxHeight,
+      imageQuality: imageQuality,
+      preferredCameraDevice: preferredCameraDevice,
+    );
+  }
+
   Future<PickedEntity> _pickAsset(
     BuildContext context,
     Options options,
     );
   }
 
-  Future<void> requestPermission(BuildContext context, {@required I18nProvider provider}) async {
+  Future<void> requestPermission(BuildContext context,
+      {@required I18nProvider provider}) async {
     var requestPermission = await PhotoManager.requestPermission();
     if (requestPermission != true) {
       var result = await showDialog(

pubspec.lock

 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  archive:
-    dependency: transitive
-    description:
-      name: archive
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.0.13"
-  args:
-    dependency: transitive
-    description:
-      name: args
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "1.6.0"
   async:
     dependency: transitive
     description:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "1.1.3"
-  collection:
+  clock:
     dependency: transitive
     description:
-      name: collection
+      name: clock
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.14.12"
-  convert:
+    version: "1.0.1"
+  collection:
     dependency: transitive
     description:
-      name: convert
+      name: collection
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.1"
-  crypto:
+    version: "1.14.12"
+  fake_async:
     dependency: transitive
     description:
-      name: crypto
+      name: fake_async
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.4"
+    version: "1.1.0"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_plugin_android_lifecycle:
+    dependency: transitive
+    description:
+      name: flutter_plugin_android_lifecycle
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.7"
   flutter_test:
     dependency: "direct dev"
     description: flutter
     source: sdk
     version: "0.0.0"
-  image:
+  image_picker:
+    dependency: "direct main"
+    description:
+      name: image_picker
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "0.6.6+1"
+  image_picker_platform_interface:
     dependency: transitive
     description:
-      name: image
+      name: image_picker_platform_interface
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "2.1.12"
+    version: "1.0.0"
   matcher:
     dependency: transitive
     description:
       name: path
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "1.6.4"
-  petitparser:
-    dependency: transitive
-    description:
-      name: petitparser
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.4.0"
+    version: "1.7.0"
   photo_manager:
     dependency: "direct main"
     description:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "0.5.1-dev.4"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      url: "https://pub.flutter-io.cn"
+    source: hosted
+    version: "1.0.2"
   provider:
     dependency: "direct main"
     description:
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "4.0.5"
-  quiver:
-    dependency: transitive
-    description:
-      name: quiver
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "2.1.3"
   sky_engine:
     dependency: transitive
     description: flutter
       url: "https://pub.flutter-io.cn"
     source: hosted
     version: "2.0.8"
-  xml:
-    dependency: transitive
-    description:
-      name: xml
-      url: "https://pub.flutter-io.cn"
-    source: hosted
-    version: "3.6.1"
 sdks:
   dart: ">=2.7.0 <3.0.0"
-  flutter: ">=1.12.1"
+  flutter: ">=1.12.13 <2.0.0"

pubspec.yaml

 
   photo_manager: ^0.5.1-dev.2
   provider: ^4.0.5
+  image_picker: ^0.6.5
   # photo_manager:
   #   git:
   #     url: https://github.com/CaiJingLong/flutter_photo_manager.git