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A plugin that adapts the flutter application to different platforms, allowing your flutter application to flexibly and efficiently adapt to various platforms in the same flutter project, maximizing UI multiplexing, and sharing business logic code across different platforms. Support to select different layout styles in real time according to the …

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flutter_adapter

A plugin that adapts the flutter application to different platforms, allowing your flutter application to flexibly and efficiently adapt to various platforms in the same flutter project, maximizing UI multiplexing, and sharing business logic code across different platforms. Support to select different layout styles in real time according to the screen orientation.

Readme for Chinese

Preview

Usage

The flutter_adapter plugin has four built-in platforms: mobile phone (TEAdaptPlatform.phone), mobile phone horizontal (TEAdaptPlatform.phoneLandscape), pad horizontal screen (TEAdaptPlatform.padLandscape), pad vertical screen (TEAdaptPlatform.padPortrait). If you only need to adapt part of platforms, you only need to make the widget implement the platform-specific build function. Other unsuited platforms will return the Phone style by default.

If you need to extend the adapted platform, you only need to implement an abstract class that inherits from FlexibleStatelessWidget for StatelessWidget, then implement the build function of the new platform and register the platform. As for StatefulWidget, you only need to implement an abstract class that inherits from FlexibleState, and then Implement the build function of the new platform and register the platform.

Example

When you use flutter_adapter, you only need to use ScreenAdaptWidget at the entrance of the app, and then set the platform name that the current APP needs to adapt.

ScreenAdaptWidget(
    platform: TEAdaptPlatform.phone.toString(),
    autoOrientation: true, // Whether to select different layout styles in real time according to the screen orientation
    child: any widget
)),

StatelessWidget Example

If one of your StatelessWidgets needs to be adapted to a particular platform, just pass the widget from the FlexibleStatelessWidget and implement the platform-specific build function.

class MyStatelessPage extends FlexibleStatelessWidget {

  @override
  Widget buildPhone(BuildContext context) {
    return Text('Phone',style: TextStyle(fontSize: 18.0),);
  }

  @override
  Widget buildPadPortrait(BuildContext context) {
    return Text('PadPortrait',style: TextStyle(fontSize: 22.0),);
  }

  @override
  Widget buildPadLandscape(BuildContext context) {
    return Text('PadLandscape',style: TextStyle(fontSize: 30.0),);
  }
}

StatefulWidget Example

If one of your StatefulWidgets needs to be adapted to a specific platform, you only need to inherit the State corresponding to the StatefulWidget from FlexibleState, and then implement the build function of the specific platform.

class MyStatefulPageState extends FlexibleState<MyStatefulPage> {

  @override
  Widget buildPhone(BuildContext context) {
    return Text('Phone',style: TextStyle(fontSize: 18.0),);
  }

  @override
  Widget buildPadPortrait(BuildContext context) {
    return Text('PadPortrait',style: TextStyle(fontSize: 22.0),);
  }

  @override
  Widget buildPadLandscape(BuildContext context) {
    return Text('PadLandscape',style: TextStyle(fontSize: 30.0),);
  }
}

Normal Widget Example

1、If one of your widgets only needs to change the value of an individual attribute value on a different platform, then only a cross-platform adaptation of the specific attribute is required. flutter_adapter provides a superObjectAdapter function to solve the cross-platform adaptation problem of attribute values.
2、If you need a function in a different platform to execute different logic, then only a cross-platform adaptation of the specific function is required. flutter_adapter provides a superFunctionAdapter function to solve the cross-platform adaptation problem of Functions (For example: flutter_adapter can make a button click event in different platforms have different performance).

class MyNormalPage extends StatelessWidget {
  final String textStr;

  MyNormalPage(this.textStr);

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('page normal'),
      ),
      body: Column(
        children: <Widget>[
          GestureDetector(
            onTap: () {
              superFunctionAdapter(context, {
                TEAdaptPlatform.phone.toString(): () {
                  print('tab me on ${TEAdaptPlatform.phone.toString()}');
                },
                TEAdaptPlatform.padPortrait.toString(): () {
                  print('tab me on ${TEAdaptPlatform.padPortrait.toString()}');
                },
              });
            },
            child: Container(
              padding: EdgeInsets.all(10.0),
              margin: EdgeInsets.only(bottom: 30.0),
              width: double.infinity,
              height: 100.0,
              color: superObjectAdapter(context, {TEAdaptPlatform.phone.toString(): Colors.yellow, TEAdaptPlatform.padPortrait.toString(): Colors.greenAccent}),
              child: Center(
                child: Text(
                  '$textStr ${superObjectAdapter(context, {
                    TEAdaptPlatform.phone.toString(): "[Phone]",
                  TEAdaptPlatform.padPortrait.toString(): "[PadPortrait]"
                  })}',
                  style: TextStyle(
                      fontSize: superObjectAdapter(context, {TEAdaptPlatform.phone.toString(): 18.0, TEAdaptPlatform.padPortrait.toString(): 38.0}),
                      color: Colors.black),
                ),
              ),
            ),
          ),
        ],
      ),
    );
  }
}

Extend the platform that needs to be adapted

The three platforms built into the plug-in may not be sufficient in the actual use process, so we provide an adaptation solution for the user-defined platform.

StatelessWidget adapts to the new platform

For StatelessWidget, you only need to implement an abstract class that inherits from FlexibleStatelessWidget, and then implement the build function of the new platform, and then register the platform.

abstract class CustomFlexibleStatelessWidget extends FlexibleStatelessWidget {
  @protected
  Widget buildNewPlatform(BuildContext context) {
    return buildPhone(context); // by default, you can return the phone's style
  }

  @protected
  void initAdapter() {
    super.initAdapter();
    addAdapter(Constant.newPlatform, buildNewPlatform);// register new Platform
  }
}

StatelessWidget adaptation new platform example:

class MyStatelessPage extends CustomFlexibleStatelessWidget {

  @override
  Widget buildPhone(BuildContext context) {
    return Text('Phone',style: TextStyle(fontSize: 18.0),);
  }

  @override
  Widget buildPadPortrait(BuildContext context) {
    return Text('PadPortrait',style: TextStyle(fontSize: 22.0),);
  }

  @override
  Widget buildNewPlatform(BuildContext context) {
    return Text('buildNewPlatform',style: TextStyle(fontSize: 30.0),);
  }
}

StatefulWidget adapts to the new platform

For StatefulWidget, you only need to implement an abstract class that inherits from FlexibleState, and then implement the build function of the new platform, and then register the platform.

abstract class CustomFlexibleState<T extends StatefulWidget> extends FlexibleState<T> {
  @protected
  Widget buildNewPlatform(BuildContext context) {
    return buildPhone(context); // by default, you can return the phone's style
  }

  @protected
  void initAdapter() {
    super.initAdapter();
    addAdapter(Constant.newPlatform, buildNewPlatform);// register new Platform
  }
}

StatefulWidget adaptation new platform example:

class MyStatefulPageState extends CustomFlexibleState<MyStatefulPage> {

  @override
  Widget buildPhone(BuildContext context) {
    return Text('Phone',style: TextStyle(fontSize: 18.0),);
  }

  @override
  Widget buildPadPortrait(BuildContext context) {
    return Text('PadPortrait',style: TextStyle(fontSize: 22.0),);
  }

  @override
  Widget buildNewPlatform(BuildContext context) {
    return Text('NewPlatform',style: TextStyle(fontSize: 30.0),);
  }
}

License

Copyright (C) 2019 The Android Open Source Project
Copyright (C) 2019 WeslyWang

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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A plugin that adapts the flutter application to different platforms, allowing your flutter application to flexibly and efficiently adapt to various platforms in the same flutter project, maximizing UI multiplexing, and sharing business logic code across different platforms. Support to select different layout styles in real time according to the …

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