1.新特性

1. 支持Flutter 1.5
2. 從老版的復(fù)用FlutterView裁着，到新版的創(chuàng)建新的實(shí)例
3. 新版創(chuàng)建新的的實(shí)例Flutter英古，可以避免白屏帅戒，閃屏，黑屏等現(xiàn)象
4. 推薦使用ContainerLifeCycle observer來(lái)監(jiān)聽(tīng)APP的生命周期
5. 移除了xservice通信插件

2.主要的API變化

IPlatform

移除一下代碼

Activity getMainActivity();
boolean startActivity(Context context,String url,int requestCode);
Map getSettings();

新增加

void registerPlugins(PluginRegistry registry) 方法
void openContainer(Context context,String url,Map<String,Object> urlParams,int requestCode,Map<String,Object> exts);
void closeContainer(IContainerRecord record, Map<String,Object> result, Map<String,Object> exts);
IFlutterEngineProvider engineProvider();
int whenEngineStart();

這個(gè)Api變化主要是在Application初始化的時(shí)候的修改

以上是Flutter_boost github上面的說(shuō)明昧港，具體可以查看

3.接入指南

接入的方式主要是在V0.0.420版本上面做的修改擎椰，V0.0.420的接入方式可以參考我之前的文章

舊版本 Application類(lèi)的修改

public class MyApplication extends Application {

  @Override
  public void onCreate() {
    super.onCreate();
    FlutterBoostPlugin.init(new IPlatform() {
      @Override
      public Application getApplication() {
        return MyApplication.this;
      }

      /**
       * get the main activity, this activity should always at the bottom of task stack.
       */
      @Override
      public Activity getMainActivity() {
        return MainActivity.sRef.get();
      }

      @Override
      public boolean isDebug() {
        return false;
      }

      /**
       * start a new activity from flutter page, you may need a activity router.
       */
      @Override
      public boolean startActivity(Context context, String url, int requestCode) {
        return PageRouter.openPageByUrl(context,url,requestCode);
      }

      @Override
      public Map getSettings() {
        return null;
      }
    });
  }
}

可以繼承FlutterApplication，直接使用创肥，不繼承FlutterApplication 的話需要在使用Flutter的Activity中onCreate加入 FlutterMain.startInitialization(this);
如下所示

@CallSuper
  public void onCreate() {
   FlutterMain.startInitialization(this);
    super.onCreate();
  }

其實(shí)對(duì)應(yīng)的FlutterApplication是很簡(jiǎn)單的达舒，主要還是在onCreate中

public class FlutterApplication extends Application {
  private Activity mCurrentActivity = null;

  public FlutterApplication() {
  }

  @CallSuper
  public void onCreate() {
    super.onCreate();
    FlutterMain.startInitialization(this);
  }

  public Activity getCurrentActivity() {
    return this.mCurrentActivity;
  }

  public void setCurrentActivity(Activity mCurrentActivity) {
    this.mCurrentActivity = mCurrentActivity;
  }
}

新版本 Application類(lèi)的修改

public class MyApplication extends FlutterApplication {
    @Override
    public void onCreate() {
        super.onCreate();

        FlutterBoost.init(new Platform() {

            @Override
            public Application getApplication() {
                return MyApplication.this;
            }

            @Override
            public boolean isDebug() {
                return true;
            }

            @Override
            public void openContainer(Context context, String url, Map<String, Object> urlParams, int requestCode, Map<String, Object> exts) {
                PageRouter.openPageByUrl(context,url,urlParams,requestCode);
            }

            @Override
            public IFlutterEngineProvider engineProvider() {
                return new BoostEngineProvider(){
                    @Override
                    public BoostFlutterEngine createEngine(Context context) {
                        return new BoostFlutterEngine(context, new DartExecutor.DartEntrypoint(
                                context.getResources().getAssets(),
                                FlutterMain.findAppBundlePath(context),
                                "main"),"/");
                    }
                };
            }

            @Override
            public int whenEngineStart() {
                return IMMEDIATELY;
            }
        });
    }
}

移除和新增代碼，前面講了叹侄，這里主要講一下whenEngineStart()函數(shù)巩搏，其返回值有兩個(gè)

 int IMMEDIATELY = 0;          //立即啟動(dòng)引擎
 int ANY_ACTIVITY_CREATED = 1; //當(dāng)有任何Activity創(chuàng)建時(shí),啟動(dòng)引擎

官方demo給的默認(rèn)值是ANY_ACTIVITY_CREATED 創(chuàng)建Activity 都會(huì)啟動(dòng)，主要是控制引擎的初始化時(shí)機(jī)

engineProvider()返回一個(gè)Flutter引擎提供者圈膏，BoostEngineProvider塔猾，主要看其內(nèi)部的createEngine()方法

 @Override
public BoostFlutterEngine createEngine(Context context) {
    return new BoostFlutterEngine(context, new DartExecutor.DartEntrypoint(
            context.getResources().getAssets(),
            FlutterMain.findAppBundlePath(context),
            "main"),"/");
}

這里大致講一下其中的main字符，這個(gè)主要是在BoostFlutterEngine內(nèi)部創(chuàng)建引擎的時(shí)候稽坤，設(shè)置對(duì)應(yīng)的Flutter 執(zhí)行的main函數(shù)也就是Flutter代碼的執(zhí)行的入口丈甸，斜杠主要是初始化路由用的

4.Flutter混合庫(kù)函數(shù)升級(jí)Flutter_boost

修改版本信息v0.1.52,最新版

移除

FlutterBoost.handleOnStartPage();

打開(kāi)頁(yè)面不帶參數(shù)

FlutterBoost.singleton.openPage("second", {}, animated: true);
<!--修改成-->
FlutterBoost.singleton.open("second")

打開(kāi)頁(yè)面帶參數(shù)

  FlutterBoost.singleton.openPage("sample://nativePage", {
                  "query": {"aaa": "bbb"}
                }),
<!--修改成-->
  FlutterBoost.singleton.open("sample://nativePage", urlParams:{
                  "query": {"aaa": "bbb"}
                }),

關(guān)閉頁(yè)面

FlutterBoost.singleton.closePageForContext(context);
<!--修改成-->
BoostContainerSettings settings = BoostContainer.of(context).settings;
FlutterBoost.singleton.close(settings.uniqueId,result: {"result":"data from second"});