修复flutter Android 编译中配置项 compile

Default interface methods are only supported starting with Android N (--min-api 24): void androidx.lifecycle.DefaultLifecycleObserver.onCreate(androidx.lifecycle.LifecycleOwner)

在app.gradle中添加以下代码

compileOptions{

//        coreLibraryDesugaringEnabled true

        sourceCompatibility JavaVersion.VERSION_1_8

        targetCompatibility JavaVersion.VERSION_1_8

    }