android 原生混编 flutter 并使用 flutter_boost进行跳转的步骤以及注意事项

导入步骤： 

1.将flutter_module放在项目中，与app module平级。

2.在项目build.gradle里面，加入以下代码：

include ':app' // 加入下面配置 setBinding(new Binding([gradle: this])) evaluate(new File( settingsDir.parentFile, 'inininhelper/flutter_module/.android/include_flutter.groovy' ))

3.在Build →  Rebuild Project 之后，在app的build.gradle里面添加

dependencies { ... implementation project(':flutter') implementation project(':flutter_boost') }

4.在Build →  Rebuild Project 之后，将以下activity添加到AndroidManifest.xml：

5.在Application中初始化flutter_boost:

package com.example.mixdemo; import android.app.Application; import android.content.Context; import android.util.Log; import com.idlefish.flutterboost.FlutterBoost; import com.idlefish.flutterboost.Platform; import com.idlefish.flutterboost.Utils; import com.idlefish.flutterboost.interfaces.INativeRouter; import java.util.Map; import io.flutter.embedding.android.FlutterView; import io.flutter.plugin.common.PluginRegistry; import io.flutter.plugins.GeneratedPluginRegistrant; import io.flutter.view.FlutterMain; public class BaseApplication extends Application { private String TAG = "test"; @Override public void onCreate() { super.onCreate(); // 初始化 initFlutterBoost(); } private void initFlutterBoost() { //路由,Flutter 启动Native页面的时候回调这里 INativeRouter router = new INativeRouter() { @Override public void openContainer(Context context, String url, Map urlParams, int requestCode, Map exts) { Log.i(TAG, "路由--INativeRouter:url=" + url); Log.i(TAG, "路由--INativeRouter:requestCode=" + requestCode); Log.i(TAG, "路由--INativeRouter:urlParams=" + urlParams); Log.i(TAG, "路由--INativeRouter:exts=" + exts); String assembleUrl = Utils.assembleUrl(url, urlParams); PageRouter.openPageByUrl(context, assembleUrl, urlParams); } }; //插件注册 FlutterBoost.BoostPluginsRegister pluginsRegister = new FlutterBoost.BoostPluginsRegister() { @Override public void registerPlugins(PluginRegistry mRegistry) { GeneratedPluginRegistrant.registerWith(mRegistry); } }; //配置 Platform platform = new FlutterBoost.ConfigBuilder(this, router) .isDebug(true) .whenEngineStart(FlutterBoost.ConfigBuilder.ANY_ACTIVITY_CREATED) .renderMode(FlutterView.RenderMode.texture) .pluginsRegister(pluginsRegister) .build(); //初始化flutter_boost FlutterBoost.instance().init(platform); } }

6.android 调用flutter页面：

val params: MutableMap = HashMap() params["test1"] = "v_test1" params["test2"] = "v_test2" findViewById(R.id.button) .setOnClickListener { PageRouter.openPageByUrl(this, PageRouter.FLUTTER_PAGE_URL, params); Toast.makeText(this, "已发送", Toast.LENGTH_SHORT).show() }

7.PageRouter页面

package com.example.mixdemo; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.os.Bundle; import android.util.Log; import com.idlefish.flutterboost.containers.BoostFlutterActivity; import java.util.HashMap; import java.util.Map; public class PageRouter { public final static Map pageName = new HashMap() {{ put("first", "first"); put("second", "second"); put("tab", "tab"); put("sample://abnormalOrderPage", "abnormalOrderPage"); }}; public static final String NATIVE_PAGE_URL = "sample://nativePage"; public static final String FLUTTER_PAGE_URL = "sample://abnormalOrderPage"; public static final String FLUTTER_FRAGMENT_PAGE_URL = "sample://flutterFragmentPage"; public static boolean openPageByUrl(Context context, String url, Map params) { return openPageByUrl(context, url, params, 0); } public static boolean openPageByUrl(Context context, String url, Map params, int requestCode) { String path = url.split("\\?")[0]; Log.i("openPageByUrl", path); try { if (pageName.containsKey(path)) { //打开指定url的flutter页面 Intent intent = BoostFlutterActivity.withNewEngine().url(pageName.get(path)).params(params) .backgroundMode(BoostFlutterActivity.BackgroundMode.opaque).build(context); if (context instanceof Activity) { Activity activity = (Activity) context; activity.startActivityForResult(intent, requestCode); } else { context.startActivity(intent); } return true; } else if (url.startsWith(FLUTTER_FRAGMENT_PAGE_URL)) { //打开flutter创建的fragment // context.startActivity(new Intent(context, FlutterFragmentPageActivity.class)); return true; } else if (url.startsWith(NATIVE_PAGE_URL)) { //打开原生Activity // context.startActivity(new Intent(context, NativePageActivity.class)); return true; } return false; } catch (Throwable t) { return false; } } }

注意事项（重要）

1.注意flutter_boost的版本和与之对应的flutter sdk

Flutter Boost Release Version	Support Flutter SDK Version	Description	Support AndroidX？
1.9.1+2	1.9.1-hotfixes	Rename the version number and start supporting androidx by default	Yes
1.12.13+3	1.12.13-hotfixes	支持androidx	Yes
1.17.1	1.17.1	支持androidx	Yes

 

Flutter Boost Branch	Support Flutter SDK Version	Description	Support AndroidX？
v1.9.1-hotfixes	1.9.1-hotfixes	for androidx	Yes
v1.12.13-hotfixes	1.12.13-hotfixes	for androidx	Yes
v1.17.1-hotfixes	1.17.1	for androidx	Yes

如果不注意这个会出现异常，版本不一致导致库方法不一致。

2.注意flutter module 的pubspec.yaml文件版本信息

如果出现了

The current Dart SDK version is 2.5.0.

Because yybb_flutter depends on flutter_screenutil >=1.1.0 which requires SDK version >=2.6.0 <3.0.0, version solving failed.
pub get failed (1)

类似报错信息，那么需要将pubspec.yaml里的flutter_screenutil:^2.3.0改成flutter_screenutil:any，重新编译后查看pubspec.lock的版本信息，并且修改成该版本：

类似这样：

flutter_screenutil:
  dependency: "direct main"
  description:
    name: flutter_screenutil
    url: "https://pub.flutter-io.cn"
  source: hosted
  version: "1.0.2"

修改为1.0.2，如此类推。