如何从地址中找到纬度和经度？

我想在 Google 地图中显示某个地址的位置。

如何使用 Google Maps API 获取地址的纬度和经度？

public GeoPoint getLocationFromAddress(String strAddress) {

    Geocoder coder = new Geocoder(this);
    List<Address> address;
    GeoPoint p1 = null;

    try {
        address = coder.getFromLocationName(strAddress, 5);
        if (address == null) {
            return null;
        }
        Address location = address.get(0);
        location.getLatitude();
        location.getLongitude();

        p1 = new GeoPoint((double) (location.getLatitude() * 1E6),
                (double) (location.getLongitude() * 1E6));

        return p1;
    } catch (IOException e) {
        e.printStackTrace();
    }
    return null;
}

strAddress是一个包含地址的字符串。这address变量保存转换后的地址。