Flutter： Unsupported value: false/true

在使用FlutterBoost传参时，直接传递bool值时出现崩溃。

FlutterBoost.singleton.open(
            'flutter://personnel_page',
            urlParams: {
              'isBd': i%2==0 ? true : false,
  
            },
          ),

崩溃日志如下： 

 Caused by: java.lang.IllegalArgumentException: Unsupported value: false
        at io.flutter.plugin.common.StandardMessageCodec.writeValue(StandardMessageCodec.java:278)
        at io.flutter.plugin.common.StandardMessageCodec.writeValue(StandardMessageCodec.java:275)
        at io.flutter.plugin.common.StandardMessageCodec.writeValue(StandardMessageCodec.java:275)
        at io.flutter.plugin.common.StandardMethodCodec.encodeMethodCall(StandardMethodCodec.java:38)
        at io.flutter.plugin.common.MethodChannel.invokeMethod(MethodChannel.java:99)
        at com.idlefish.flutterboost.FlutterBoostPlugin.invokeMethod(FlutterBoostPlugin.java:138)
        at com.idlefish.flutterboost.FlutterBoostPlugin.invokeMethodUnsafe(FlutterBoostPlugin.java:96)
        at com.idlefish.flutterboost.ContainerRecord$MethodChannelProxy.invokeChannelUnsafe(ContainerRecord.java:292)
        at com.idlefish.flutterboost.ContainerRecord$MethodChannelProxy.create(ContainerRecord.java:231)
        at com.idlefish.flutterboost.ContainerRecord$MethodChannelProxy.access$100(ContainerRecord.java:226)
        at com.idlefish.flutterboost.ContainerRecord.onCreate(ContainerRecord.java:106)
        at com.idlefish.flutterboost.containers.FlutterActivityAndFragmentDelegate.onCreateView(FlutterActivityAndFragmentDelegate.java:163)
        at com.idlefish.flutterboost.containers.BoostFlutterActivity.createFlutterView(BoostFlutterActivity.java:229)
        at com.idlefish.flutterboost.containers.BoostFlutterActivity.onCreate(BoostFlutterActivity.java:149)
        at com.xx.ss.SSFlutterActivity.onCreate(SSFlutterActivity.java:32)
        at android.app.Activity.performCreate(Activity.java:8142)
        at android.app.Activity.performCreate(Activity.java:8114)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1308)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3550)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3749) 
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:85) 
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) 
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2181) 
        ......

原以为是FlutterBoost框架的bug，百度了一番，原来是低版本flutter的bug。

这个是因为StandardMessageCodec的boolean检查有问题导致Native像Flutter传参map里value有boolean的时候崩溃，commit已经merge到master了

https://github.com/flutter/engine/commit/13453596424988afa5eebafb5511b0bacbab19ae

高版本还没有验证...