修改地图为单线程绘制，收到的数据放入队列

lizhanwei

2020-01-21 aff3ecab64dd259fdbbf8382dc02325b46d7b4d1

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*.iml
.gradle
/local.properties
/.idea/caches
/.idea/libraries
/.idea/modules.xml
/.idea/workspace.xml
/.idea/navEditor.xml
/.idea/assetWizardSettings.xml
.DS_Store
/build
/captures
.externalNativeBuild