Android 谷歌地图海事图表图层
我正在考虑在 Android 应用程序中显示一张地图，其中显示海图，并且还需要离线工作，因为没有任何类型的可用网络连接。我怀疑我会以一系列位图文件的形式提供海图，其中包含剪裁后的区域的 LAT/LON 参考。
我的问题是 - 我该如何实施？我想我必须以某种方式将它们添加为一层，有人可以告诉我如何做到这一点吗？
此外，由于设备将处于离线状态，即使所有内容都保存在本地，尝试使用 Google 地图是否会出现问题，API 会在连接之前“无法工作”吗？
提前致谢。
I'm looking at displaying a map within my Android app that presents maritime charts, and also needs to work offline as there will be no network connectivity of any type available. I suspect that I will get my maritime charts supplied as a series of bitmap files with LAT/LON references of the area clipped.
My question is this - how do I go about implementing this ? I guess I have to add them as a layer somehow, can someone show me how to do this ?
Also, as the device will be offline, will there be a problem trying to use Google maps even if all the content is held locally, will the API just "not work" until it has connectivity ?
Thanks in advance.
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由于这刚刚赢得了风滚草，我想我应该更新它。
我非常努力地尝试离线使用 Maps API，并将我的位图作为图层 - 但没有成功。该 API 过于依赖互联网，并且在尝试任何操作时似乎都会超时。
简单的解决方案，我刚刚扩展了 ImageView 类来显示我的位图图表和图像。覆盖。
As this just earned Tumbleweed, I thought I should update it.
I tried really hard to use the Maps API offline, with my bitmap as a layer - it didn't work out. The API is too reliant on the interweb and just seems to timeout when trying just about anything.
Simple solution, I have just extended the ImageView class to display my bitmap chart & overlays.