如何显示在我的Andr​​oid在谷歌地图位置？ [英] How to show my Current location in Google Map in android?

问题描述

在我的应用我使用谷歌地图API第2版。我禁用使用 map.setMyLocationEnabled（假）我的位置按钮; ，我想增加新的按钮，做同样的工作。如何使用另一个按钮来显示相同​​的方式，我的位置按钮会做我的当前位置？
原因：
 在我的应用我想用行动吧覆盖在原来的地图应用程序。但是，当我这样做我的位置按钮进入操作栏下。所以我不得不删除默认我的位置按钮，把我自己的。现在我也不怎么移动地图我目前的位置，当我点击新建按钮。
请帮忙。我是新来的谷歌地图。先谢谢了。

In my application I am using Google map API v2. I disabled the My Location Button using map.setMyLocationEnabled(false); and I wanted to add new button to do the same job. How can I use another button to show my current location in the same way as My Location Button would do? Reason: In my application I wanted to use the action Bar overlay as in the original Maps Application. But when I do this My Location Button goes under the action bar. so i had to remove the default my Location button and put my own. now I don't how to move the map to my current location when i click new button. Please Help. I am new to Google maps. Thanks in advance.

推荐答案

这样做我自己太多，但创造我自己的标题栏，并添加一个新的按钮。下面code可能有助于（无附加XML，您可以排序的自己）。在你的活动添加这个方法：

did this myself too, but creating my own header bar and adding a new button. The following code might help (no XML attached, you can sort that yourself). Within your activity add this method:

public GeoPoint where(ArrayList<String> coordinates) {
    double lat = Double.parseDouble((String) coordinates.get(0));
    double lng = Double.parseDouble((String) coordinates.get(1));
    GeoPoint p = new GeoPoint((int) (lat * 1E6), (int) (lng * 1E6));
    return p;
}

然后，在OnCreate，加上这样的事情，在这里你已经有了的LocationManager等实例：

Then, in the onCreate, add something like this, where you already have locationManager etc. instantiated:

final Button phoneLocButton = (Button) findViewById(R.id.HomeButtonG);
    phoneLocButton.setOnClickListener(new OnClickListener() {
        public void onClick(View v) {
            try {
                locationManager = (LocationManager) getSystemService(context);
                bestProvider = locationManager.getBestProvider(c, true);
                loc = locationManager.getLastKnownLocation(bestProvider);
                if (loc != null) {
                    coords.clear();
                    coords.add("" + loc.getLatitude());
                    coords.add("" + loc.getLongitude());
                }
                mc.animateTo(where(coords));
            } catch (java.lang.IllegalStateException ill) {
                Toast.makeText(getBaseContext(),
                        "Waiting for location fix...", Toast.LENGTH_SHORT)
                        .show();
            }
        }
    });

希望这有助于。我有额外的code是中心的地图和plonks一针就可以了，但是这应该让你去？

Hope this helps. I have additional code that centers the map and plonks a pin on it, but this should get you going?

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