Update outdated links (#73514)

dev/integration_tests/flutter_gallery/lib/demo/material/buttons_demo.dart

@@ -63,42 +63,42 @@ class _ButtonsDemoState extends State<ButtonsDemo> {
         description: _elevatedText,
         demoWidget: buildElevatedButton(_buttonShape),
         exampleCodeTag: _elevatedCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/ElevatedButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/ElevatedButton-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'TEXT',
         description: _textText,
         demoWidget: buildTextButton(_buttonShape),
         exampleCodeTag: _textCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/TextButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/TextButton-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'OUTLINED',
         description: _outlinedText,
         demoWidget: buildOutlinedButton(_buttonShape),
         exampleCodeTag: _outlinedCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/OutlinedButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/OutlinedButton-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'DROPDOWN',
         description: _dropdownText,
         demoWidget: buildDropdownButton(),
         exampleCodeTag: _dropdownCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/DropdownButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/DropdownButton-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'ICON',
         description: _iconText,
         demoWidget: buildIconButton(),
         exampleCodeTag: _iconCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/IconButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/IconButton-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'ACTION',
         description: _actionText,
         demoWidget: buildActionButton(),
         exampleCodeTag: _actionCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/FloatingActionButton-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/FloatingActionButton-class.html',
       ),
     ];
 

dev/integration_tests/flutter_gallery/lib/demo/material/selection_controls_demo.dart

@@ -43,21 +43,21 @@ class _SelectionControlsDemoState extends State<SelectionControlsDemo> {
         description: _checkboxText,
         demoWidget: buildCheckbox(),
         exampleCodeTag: _checkboxCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/Checkbox-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/Checkbox-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'RADIO',
         description: _radioText,
         demoWidget: buildRadio(),
         exampleCodeTag: _radioCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/Radio-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/Radio-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'SWITCH',
         description: _switchText,
         demoWidget: buildSwitch(),
         exampleCodeTag: _switchCode,
-        documentationUrl: 'https://docs.flutter.io/flutter/material/Switch-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/Switch-class.html',
       ),
     ];
 

dev/integration_tests/flutter_gallery/lib/demo/material/slider_demo.dart

@@ -217,13 +217,13 @@ class _SliderDemoState extends State<SliderDemo> {
         tabName: 'SINGLE',
         description: 'Sliders containing 1 thumb',
         demoWidget: _Sliders(),
-        documentationUrl: 'https://docs.flutter.io/flutter/material/Slider-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/Slider-class.html',
       ),
       ComponentDemoTabData(
         tabName: 'RANGE',
         description: 'Sliders containing 2 thumbs',
         demoWidget: _RangeSliders(),
-        documentationUrl: 'https://docs.flutter.io/flutter/material/RangeSlider-class.html',
+        documentationUrl: 'https://api.flutter.dev/flutter/material/RangeSlider-class.html',
       ),
     ];
 

dev/integration_tests/flutter_gallery/lib/gallery/app.dart

@@ -50,7 +50,7 @@ class _GalleryAppState extends State<GalleryApp> {
   Map<String, WidgetBuilder> _buildRoutes() {
     // For a different example of how to set up an application routing table
     // using named routes, consider the example in the Navigator class documentation:
-    // https://docs.flutter.io/flutter/widgets/Navigator-class.html
+    // https://api.flutter.dev/flutter/widgets/Navigator-class.html
     return <String, WidgetBuilder>{
       for (final GalleryDemo demo in kAllGalleryDemos) demo.routeName: demo.buildRoute,
     };

dev/tools/dartdoc.dart

@@ -24,8 +24,8 @@ const String kPlatformIntegrationPackageName = 'platform_integration';
 /// documentation to `//dev/docs/doc/api/`.
 ///
 /// This script also updates the index.html file so that it can be placed
-/// at the root of docs.flutter.io. We are keeping the files inside of
-/// docs.flutter.io/flutter for now, so we need to manipulate paths
+/// at the root of api.flutter.dev. We are keeping the files inside of
+/// api.flutter.dev/flutter for now, so we need to manipulate paths
 /// a bit. See https://github.com/flutter/flutter/issues/3900 for more info.
 ///
 /// This will only work on UNIX systems, not Windows. It requires that 'git' be
@@ -303,7 +303,7 @@ void createSearchMetadata(String templatePath, String metadataPath) {
   final String branch = getBranchName();
   final String metadata = template.replaceAll(
     '{SITE_URL}',
-    branch == 'stable' ? 'https://docs.flutter.io/' : 'https://master-docs.flutter.io/',
+    branch == 'stable' ? 'https://api.flutter.dev/' : 'https://master-api.flutter.dev/',
   );
   Directory(path.dirname(metadataPath)).create(recursive: true);
   File(metadataPath).writeAsStringSync(metadata);

packages/flutter/lib/src/widgets/animated_list.dart

@@ -809,7 +809,7 @@ class SliverAnimatedList extends StatefulWidget {
           'happen when the context provided is from the same StatefulWidget that '
           'built the AnimatedList. Please see the SliverAnimatedList documentation '
           'for examples of how to refer to an AnimatedListState object: '
-          'https://docs.flutter.io/flutter/widgets/SliverAnimatedListState-class.html\n'
+          'https://api.flutter.dev/flutter/widgets/SliverAnimatedListState-class.html\n'
           'The context used was:\n'
           '  $context');
       }

packages/flutter_localizations/lib/src/l10n/README.md

@@ -140,10 +140,10 @@ translations, they're keywords that help define an app's text theme
 and time picker layout respectively.
 
 The value of `timeOfDayFormat` defines how a time picker displayed by
-[showTimePicker()](https://docs.flutter.io/flutter/material/showTimePicker.html)
+[showTimePicker()](https://api.flutter.dev/flutter/material/showTimePicker.html)
 formats and lays out its time controls. The value of `timeOfDayFormat`
 must be a string that matches one of the formats defined by
-<https://docs.flutter.io/flutter/material/TimeOfDayFormat-class.html>.
+<https://api.flutter.dev/flutter/material/TimeOfDayFormat-class.html>.
 It is converted to an enum value because the `material_en.arb` file
 has this value labeled as `"x-flutter-type": "icuShortTimePattern"`.
 
@@ -152,7 +152,7 @@ The value of `scriptCategory` is based on the
 section in the Material spec. The Material theme uses the
 `scriptCategory` value to lookup a localized version of the default
 `TextTheme`, see
-[Typography.geometryThemeFor](https://docs.flutter.io/flutter/material/Typography/geometryThemeFor.html).
+[Typography.geometryThemeFor](https://api.flutter.dev/flutter/material/Typography/geometryThemeFor.html).
 
 
 ### 'generated_*_localizations.dart': all of the localizations as a Map

packages/flutter_tools/lib/src/commands/create.dart

@@ -92,8 +92,8 @@ class CreateCommand extends CreateBase {
 
   /// The hostname for the Flutter docs for the current channel.
   String get _snippetsHost => globals.flutterVersion.channel == 'stable'
-        ? 'docs.flutter.io'
-        : 'master-docs.flutter.io';
+        ? 'api.flutter.dev'
+        : 'master-api.flutter.dev';
 
   Future<String> _fetchSampleFromServer(String sampleId) async {
     // Sanity check the sampleId

packages/flutter_tools/test/general.shard/cache_test.dart

@@ -244,7 +244,7 @@ void main() {
 
   testWithoutContext('flattenNameSubdirs', () {
     expect(flattenNameSubdirs(Uri.parse('http://flutter.dev/foo/bar'), MemoryFileSystem.test()), 'flutter.dev/foo/bar');
-    expect(flattenNameSubdirs(Uri.parse('http://docs.flutter.io/foo/bar'), MemoryFileSystem.test()), 'docs.flutter.io/foo/bar');
+    expect(flattenNameSubdirs(Uri.parse('http://api.flutter.dev/foo/bar'), MemoryFileSystem.test()), 'api.flutter.dev/foo/bar');
     expect(flattenNameSubdirs(Uri.parse('https://www.flutter.dev'), MemoryFileSystem.test()), 'www.flutter.dev');
   });