添加罗盘旋转的MapView [英] Adding Compass to Rotate MapView

问题描述

我使用MapsDemo样品的code绘制，根据罗盘旋转的地图，但enableCompass工作不显示在MapView的指南针。我尝试添加该罗盘<一个href=\"http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/graphics/Compass.html\" rel=\"nofollow\">http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/graphics/Compass.html.但是，当我将它添加到我的应用程序，箭头出现冻结。任何想法？

I'm using the code of MapsDemo Sample to draw a Map that rotates according to the compass, but enableCompass is not working to show the compass on MapView. I tried to add this compass http://developer.android.com/resources/samples/ApiDemos/src/com/example/android/apis/graphics/Compass.html. But when I add it to my application, the arrow appears frozen. Any ideas?

推荐答案

请记住，它只会在实际硬件上运行。

Bear in mind that it will only work on actual hardware.

将这个行的onCreate ：

    MyLocationOverlay me = new MyLocationOverlay(this, mapView);
    mapView.getOverlays().add(me);

再补充一点：

@Override
protected void onResume() {
    super.onResume();
    me.enableCompass();
}

@Override
public void onPause() {
    super.onPause();
    me.disableCompass();
}

下面是一个示例项目，使罗盘 MyLocationOverlay 那肯定的作品，但你需要在自己的 Android的替代：apiKey 值

Here is a sample project that enables the compass on MyLocationOverlay that definitely works, though you will need to substitute in your own android:apiKey value.

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