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本章节主要介绍如何支持动态调整视图窗口。

场景图

如下两张图可理解为两种视图场景的切换。从对比图可知视图控制即可改变地图大小，也可以改变地图在屏幕上显示的位置。

通过x，y 控制地图渲染视口与屏幕左上角的距离，通过height，width 控制地图在屏幕上显示的大小。

在屏幕宽高1024，600下，设置x=100，y=200, width=514, height=388的视图效果

$\"image.png\"$

在屏幕宽高1024，600下，设置x=200，y=100, width=800, height=400的视图效果

$\"image.png\"$

时序图

无

核心接口

设置视图显示参数，可改变视图显示范围

void com.autonavi.gbl.map.MapView.setMapviewPort(MapViewPortParam portParam)

说明：函数详情，请复制函数名称到在线API搜索

调用示例

long x = 200; //左上角 左偏置\nlong y = 100; //左上角 顶偏置\n\nlong width = 800; //地图宽\nlong height = 400; //地图高\n\nlong screenWidth = 1024; //屏幕宽\nlong screenHeight = 600; //屏幕高\n\nMapViewPortParam mapViewPortParam = new MapViewPortParam(x, y, width, height, screenWidth, screenHeight);\nmapView.setMapviewPort(mapViewPortParam);

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