🎨 typedef CNP = ChangeNotifierProvider

Author: AlexV525

lib/src/constants/extensions.dart

@@ -3,6 +3,9 @@
 /// [Date] 2020/8/19 10:34
 ///
 import 'package:flutter/material.dart';
+import 'package:provider/provider.dart';
+
+typedef CNP<T extends ChangeNotifier?> = ChangeNotifierProvider<T>;
 
 extension BuildContextExtension on BuildContext {
   MediaQueryData get mediaQuery => MediaQuery.of(this);

lib/src/delegates/asset_picker_builder_delegate.dart

@@ -661,7 +661,7 @@ abstract class AssetPickerBuilderDelegate<Asset, Path> {
       value: overlayStyle,
       child: Theme(
         data: theme,
-        child: ChangeNotifierProvider<AssetPickerProvider<Asset, Path>>.value(
+        child: CNP<AssetPickerProvider<Asset, Path>>.value(
           value: provider,
           builder: (BuildContext c, __) => Material(
             color: theme.canvasColor,

lib/src/delegates/asset_picker_viewer_builder_delegate.dart

@@ -547,8 +547,7 @@ class DefaultAssetPickerViewerBuilderDelegate
         height: context.bottomPadding + bottomDetailHeight,
         child: child!,
       ),
-      child:
-          ChangeNotifierProvider<AssetPickerViewerProvider<AssetEntity>?>.value(
+      child: CNP<AssetPickerViewerProvider<AssetEntity>?>.value(
         value: provider,
         child: Column(
           mainAxisSize: MainAxisSize.min,
@@ -795,8 +794,7 @@ class DefaultAssetPickerViewerBuilderDelegate
   /// 资源选择器将识别并一同返回。
   @override
   Widget confirmButton(BuildContext context) {
-    return ChangeNotifierProvider<
-        AssetPickerViewerProvider<AssetEntity>?>.value(
+    return CNP<AssetPickerViewerProvider<AssetEntity>?>.value(
       value: provider,
       child: Consumer<AssetPickerViewerProvider<AssetEntity>?>(
         builder: (_, AssetPickerViewerProvider<AssetEntity>? provider, __) {
@@ -911,7 +909,7 @@ class DefaultAssetPickerViewerBuilderDelegate
 
   @override
   Widget selectButton(BuildContext context) {
-    return ChangeNotifierProvider<AssetPickerViewerProvider<AssetEntity>>.value(
+    return CNP<AssetPickerViewerProvider<AssetEntity>>.value(
       value: provider!,
       builder: (_, Widget? w) => StreamBuilder<int>(
         initialData: currentIndex,

lib/src/widget/asset_picker.dart

@@ -10,6 +10,7 @@ import 'package:provider/provider.dart';
 
 import '../constants/constants.dart';
 import '../constants/enums.dart';
+import '../constants/extensions.dart';
 import '../delegates/asset_picker_builder_delegate.dart';
 import '../delegates/assets_picker_text_delegate.dart';
 import '../delegates/sort_path_delegate.dart';
@@ -149,7 +150,7 @@ class AssetPicker<Asset, Path> extends StatefulWidget {
   }) async {
     await permissionCheck();
 
-    final Widget picker = ChangeNotifierProvider<PickerProvider>.value(
+    final Widget picker = CNP<PickerProvider>.value(
       value: provider,
       child: AssetPicker<Asset, Path>(
         key: Constants.pickerKey,