话不多说，拿起键盘就是干！Ctrl+C & Ctrl+V
使用As导入FlutterModule项目，选择菜单栏的 File -> New Module -> Import Flutter Module , 导入成功后，项目中的两个gradle文件会被修改。一个是 settings.gradle 和 app/build.gradle , 修改的内容分别如下：
settings.gradle, 最后会添加这样一段话 :
setBinding(new Binding([gradle: this]))
evaluate(new File(
settingsDir.parentFile,
'../flutter/each_family/.android/include_flutter.groovy'
))
app/build.gradle中的依赖会在第一排添加：
dependencies {
implementation project(':flutter') //这是导入的Flutter的东西
implementation fileTree(include: ['*.jar'], dir: 'libs')
implementation 'com.android.support:appcompat-v7:27.+'
.... //此处省略N多
}
由于 libflutter.so 的问题，或者说是安卓编译架构的问题，在编译运行后打开flutter显示的那个页面可能会出现 couldn't find libflutter.so 的问题，解决办法是只使用 armeabi-v7a, 具体配置是修改 app/build.gradle 文档，如下：
android{
defaultConfig{
ndk {
abiFilters "armeabi-v7a", "x86"
}
}
buildTypes {
debug {
ndk {
abiFilters "armeabi-v7a", "x86"
}
}
release {
ndk {
abiFilters "armeabi-v7a"
}
}
}
}
按照以上配置，就不会出现so库找不到的问题了！
demo示例
原生代码 - kotlin
class FlutterPresenterActivity : AppCompatActivity() {
companion object {
/** 通讯频道名称 **/
private const val ChannelName = "com.demo.flutter/activity"
}
private var methodChannel: MethodChannel? = null
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
with(initActivityUI()) { //初始化ActivityUI
initMethodChannel(this) //初始化MethodChannel
ToastPlugin.register(this@FlutterPresenterActivity, this) //注册Toast插件
}
}
/** 初始化ActivityUI **/
private fun initActivityUI(): FlutterView {
window.requestFeature(Window.FEATURE_NO_TITLE)
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
or WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION)
window.decorView.systemUiVisibility = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION or View.SYSTEM_UI_FLAG_LAYOUT_STABLE
window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS)
window.statusBarColor = Color.TRANSPARENT
window.navigationBarColor = Color.TRANSPARENT
}
with(Flutter.createView(this@FlutterPresenterActivity, lifecycle, "about")) {
setContentView(this, FrameLayout.LayoutParams(FrameLayout.LayoutParams.MATCH_PARENT,
FrameLayout.LayoutParams.MATCH_PARENT))
return this
}
}
/**
* 初始化MethodChannel
* @param flutterView FlutterView对象
*/
private fun initMethodChannel(flutterView: FlutterView) {
methodChannel = MethodChannel(flutterView, ChannelName)
methodChannel?.setMethodCallHandler { methodCall, result ->
when (methodCall.method) {
"activityFinish" -> goBack() //关闭当前页面
}
}
}
override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
if (event?.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_BACK) {
goBack() //返回上一个页面
return true
}
return super.onKeyDown(keyCode, event)
}
private fun goBack() {
this.finish()
overridePendingTransition(R.anim.slide_in_left, R.anim.slide_out_right)
}
}
Flutter端代码：
main.dart
import 'dart:ui';
import 'package:each_family/data/color_theme.dart';
import 'package:each_family/ui/about_page.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
void main() {
runApp(new MyApp());
SystemChrome.setSystemUIOverlayStyle(new SystemUiOverlayStyle(
statusBarColor: new Color(0x00000000),
));
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return new MaterialApp(
debugShowCheckedModeBanner: false,
title: 'Flutter Demo',
theme: new ThemeData(
primarySwatch: ColorTheme.lightBlue,
primaryColorBrightness: Brightness.dark,
brightness: Brightness.light,
accentColorBrightness: Brightness.dark,
),
home: _showPageByRouteName(window.defaultRouteName), //window.defaultRouteName 是路由入口
);
}
Widget _showPageByRouteName(String routeName) {
switch (routeName) {
case "about":
return new AboutPage();
default:
return new AboutPage();
// return new HomePage(title: "主页");
}
}
}
about_page.dart
import 'package:each_family/core/channel/activity_channel.dart';
import 'package:flutter/material.dart';
class AboutPage extends StatefulWidget {
AboutPage({Key key, this.title}) : super(key: key);
final String title;
@override
_AboutPageState createState() => new _AboutPageState();
}
class _AboutPageState extends State {
void _goBack() => ActivityChannel.goBackToHistory();
@override
Widget build(BuildContext context) {
return new Scaffold(
appBar: new AppBar(
centerTitle: true,
elevation: 0.0,
leading: new InkWell(
onTap: _goBack,
child: new Padding(
padding: const EdgeInsets.all(18.0),
child: new Image.asset(
"assets/images/ic_nav_back.png",
fit: BoxFit.scaleDown,
),
),
),
title: new Text('关于我们'),
),
body: new Center(
child: new Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
new Text(
'关于我们',
),
],
),
),
);
}
}
toast.dart
import 'package:flutter/services.dart';
class Toast {
static const _platform = const MethodChannel("com.demo.flutter/toast");
static void showShortToast(String message) =>
_platform.invokeMethod("showShortToast", {"message": message});
static void showLongToast(String message) =>
_platform.invokeMethod("showLongToast", {"message": message});
static void showToast(String message, int duration) =>
_platform.invokeMethod("showToast", {"message": message, "duration": duration});
}
activity_channel.dart
import 'package:flutter/services.dart';
class ActivityChannel {
static const _platform = const MethodChannel("com.whitehorse.everyhouse/activity");
static void goBackToHistory() => _platform.invokeMethod("activityFinish");
}
color_theme.dart
import 'package:flutter/material.dart';
class ColorTheme extends MaterialColor {
ColorTheme(int primary, Map swatch) : super(primary, swatch);
static const int _bluePrimaryValue = 0xFF25C4FF;
static const MaterialColor lightBlue = MaterialColor(
_bluePrimaryValue,
{
50: Color(0xFFE3F2FD),
100: Color(0xFFBBDEFB),
200: Color(0xFFa0CAF9),
300: Color(0xFF94B5F6),
400: Color(0xFF89A5F5),
500: Color(_bluePrimaryValue),
600: Color(0xFF5688E5),
700: Color(0xFF4576D2),
800: Color(0xFF3565C0),
900: Color(0xFF23a9ff),
},
);
}
这大致就是一个完成的demo示例了，有兴趣的小伙伴可以拿来跑跑看！