Android原生工程中集成Flutter混合開發
第一步 創建Flutter工程
在Android工程根目錄的上一級目錄創建Flutter工程,保證Flutter工程與Android工程在同一級。
- cd Android工程根目錄的上一級
- 創建Flutter工程:flutter create -t module flutter工程名
C:\Android\FlutterInAndroid\AndroidDemo>cd ..
C:\Android\FlutterInAndroid>flutter create -t module flutter_demo
第二步 編譯Flutter工程
cd到Flutter工程目錄下的.android目錄,執行gradlew腳本
- 注意:點後面是反斜槓
C:\Android\FlutterInAndroid>cd flutter_demo
C:\Android\FlutterInAndroid\flutter_demo>cd .android
C:\Android\FlutterInAndroid\flutter_demo\.android>.\gradlew flutter:assembleDebug
第三步 在Android工程中加入Flutter Module的依賴
首先,修改Android項目根目錄下的setting.gradle:
include ':app'
//加入下面配置
setBinding(new Binding([gradle: this]))
evaluate(new File(
settingsDir.parentFile,
'flutter_demo/.android/include_flutter.groovy'
))
然後,修改app下的build.gradle:
android {
...
defaultConfig {
...
minSdkVersion 16//至少16
...
}
...
//添加下面配置
compileOptions {
sourceCompatibility 1.8
targetCompatibility 1.8
}
}
...
dependencies {
...
//加入下面配置
implementation project(':flutter')
}
第四步 在Android工程中創建Flutter的View
/**
* 創建view
*/
View flutterView = Flutter.createView(MainActivity.this, getLifecycle(), "r1");
/**
* 創建Fragment
*/
Fragment flutterFragment = Flutter.createFragment("r2");
第五步 在Flutter工程中創建Widget
可以通過window的defaultRouteName獲取路由名稱,依此進行判斷並創建不同的Widget給Android工程調用。
void main() => runApp(selectWidget(window.defaultRouteName));
Widget selectWidget(String routeName) {
switch (routeName) {
case 'r1':
return MyFlutterView();
case 'r2':
return MyFlutterFragment();
default:
return MaterialApp(
debugShowCheckedModeBanner: false,
home: Scaffold(
body: Center(
child: Text(
'Unknow Route!',
style: TextStyle(color: Color(0xffff0000)),
),
),
),
);
}
}
第六步 讓Flutter模塊支持熱加載
首先在Flutter Module工程目錄下執行flutter attach,開始監聽flutter。
C:\Damon\flutter\FlutterInAndroid\flutter_demo>flutter attach
Waiting for a connection from Flutter on SCL AL00...
然後,在Android工程中運行程序,運行成功後可以在終端輸入小寫r熱加載,大寫R熱重啓。
C:\Damon\flutter\FlutterInAndroid\flutter_demo>flutter attach
Waiting for a connection from Flutter on SCL AL00...
Done.
Syncing files to device SCL AL00...
Demo下載
Demo下載地址:點擊下載