问题描述
我会出我的脑海过去两天的抛出:IllegalArgumentException
错误我试图让一个坐标,一个地址时,收到的Android code ,甚至逆转,拿到地址了经度和纬度。这是code,但我看不到一个错误。这是一个标准的code段在谷歌搜索很容易发现这一点。
I am going out of my mind for the last two days with an IllegalArgumentException
error I receive in Android code when trying to get a coordinates out of an address, or even reverse, get address out of longitude and latitude. This is the code, but I cannot see an error. It is a standard code snippet that is easily found on a Google search.
public GeoPoint determineLatLngFromAddress(Context appContext, String strAddress) {
Geocoder geocoder = new Geocoder(appContext, Locale.getDefault());
GeoPoint g = null;
try {
System.out.println("str addres: " + strAddress);
List<Address> addresses = geocoder.getFromLocationName(strAddress, 5);
if (addresses.size() > 0) {
g = new GeoPoint(
(int) (addresses.get(0).getLatitude() * 1E6),
(int) (addresses.get(0).getLongitude() * 1E6)
);
}
} catch (Exception e) {
throw new IllegalArgumentException("locationName == null");
}
return g;
}
这些都是从manifest.xml文件的权限:
These are the permissions from manifest.xml file:
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
我已经做了谷歌API密钥宣布过:&LT;使用库机器人:名称=com.google.android.maps/&GT;
从code段以上,地理codeR
不是空
,无论是地址
或 appContext
,和我绊倒在这里:地理coder.getFromLocationName(strAddress ,5);
From the code snippet above, geocoder
is not null
, neither is the address
or appContext
, and I stumble here: geocoder.getFromLocationName(strAddress, 5);
我做了很多谷歌的搜索,并没有发现任何的工作,而且我发现最重要的信息是这样的:
I did a lot of Google searching and found nothing that worked, and the most important info I found is this:
中的地缘codeR类需要未包含在核心Android框架后端服务。
的sooo,我现在confuzed。我有什么打电话,导入,添加,在code使用....,使这项工作?我使用谷歌API 2.2 API 8级。如果有人已经找到了一个解决方案,或者一个指针文件,东西,我没有发现,请告诉我们。
Sooo, I am confuzed now. What do I have to call, import, add, use in code.... to make this work?I am using Google API 2.2, API level 8.If somebody has found a solution for this, or a pointer for documentation, something that I didn't discover, please let us know.
推荐答案
我也有类似的问题,发现轮询地理codeR直到我得到的结果工作。下面是我是如何做到的,到目前为止的伟大工程。
I had a similar problem and found that polling the Geocoder until i got a result worked. Here is how i did it, so far works great.
try {
List<Address> geoResults = geocoder.getFromLocationName("<address goes here>", 1);
while (geoResults.size()==0) {
geoResults = geocoder.getFromLocationName("<address goes here>", 1);
}
if (geoResults.size()>0) {
Address addr = geoResults.get(0);
myLocation.setLatitude(addr.getLatitude());
myLocation.setLongitude(addr.getLongitude());
}
} catch (Exception e) {
System.out.print(e.getMessage());
}
这篇关于地理coder.getFromLocationName只返回空的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!