手动添加位置更新在Eclipse中停止工作 [英] Manually added location updates stop working in Eclipse
问题描述
问题是在第一次手动注入GPS坐标之后,应用程序停止识别GPS坐标已发送。
LocationManager lm =(LocationManager)getSystemService(Context.LOCATION_SERVICE);
MapController mc = mapView.getController();
TextView locationText =(TextView)findViewById(R.id.LocationBar);
LocationListener locationListener = new MyLocationListener(mc,itemizedOverlay,locationText);
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
0,
0,
locationListener);
然后MyLocationListener只是更改TextView中的值以匹配新的GPS坐标。
public void onLocationChanged(Location loc){
if(loc == null){
return;
}
double lat = loc.getLatitude();
double lng = loc.getLongitude();
GeoPoint p = new GeoPoint(
(int)(lat * 1E6),
(int)(lng * 1E6));
mc.animateTo(p);
itemizedOverlay.addOverlay(new OverlayItem(p,title,snippet));
String location = String.format(%f lat%f long,lat,lng);
locationText.setText(location);
}
我在onLocationChanged方法中添加了一些日志记录,只有看到我尝试发送更新的第一个时间。所有后续的不会触发onLocationChanged方法。
附加信息:
logcat输出如下:
10-02 17:22:34.423:INFO / gps(6671):提供者gps的状态已更改为1。其他:捆绑[mParcelledData.dataSize = 52]
首次GPS更新是伪造的:
10-02 17:22:49.383:INFO / gps(6671):位置提供商提供的位置:位置[mProvider = gps,mTime = 1000,mLatitude = 25.0,mLongitude = 23.0,mHasAltitude =真,mAltitude = 0.0,mHasSpeed =假,MSPEED = 0.0,mHasBearing =假,mBearing = 0.0,mHasAccuracy =假,mAccuracy = 0.0,mExtras =捆绑[mParcelledData.dataSize = 52]]
10-02 17:22:49.444:INFO / gps(6671):提供者gps的状态已更改为2.其他:捆绑[mParcelledData.dataSize = 52]
根据 http:// deve loper.android.com/reference/android/location/LocationProvider.html#AVAILABLE ,该图贴图可用。
一旦可用设置,没有其他位置通过。似乎有点违反直觉。
我相信你在仿真器的GPS驱动程序中遇到了一个错误。 b
$ b
1.5版SDK的解决方法包含在错误报告。从那里引用:
在模拟器中,在主屏幕上,按菜单 - >设置 - >
日期和时间 - >取消选中自动 - >选择时区,
并选择正确的时区(即您的)。
A 修复包含在1.6版本的SDK中。
I'm working on a 1.5 Android application. Developing in Eclipse 3.4.2 on Windows XP. I have a MapView, have requested updates, etc.
The problem is that after the first manually injected GPS coordinate, the app stops recognizing that a GPS coord has been sent.
LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
MapController mc = mapView.getController();
TextView locationText = (TextView) findViewById(R.id.LocationBar);
LocationListener locationListener = new MyLocationListener(mc, itemizedOverlay, locationText);
lm.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
0,
0,
locationListener);
Then MyLocationListener simply changes the value in a TextView to match the new GPS coordinate.
public void onLocationChanged(Location loc) {
if (loc == null) {
return;
}
double lat = loc.getLatitude();
double lng = loc.getLongitude();
GeoPoint p = new GeoPoint(
(int) (lat * 1E6),
(int) (lng * 1E6));
mc.animateTo(p);
itemizedOverlay.addOverlay(new OverlayItem(p, "title", "snippet"));
String location = String.format("%f lat %f long", lat, lng);
locationText.setText(location);
}
I added some logging in the onLocationChanged method and it only ever sees a Location the first time that I attempt to send an update. All subsequent ones don't fire the onLocationChanged method.
Additional info:
The logcat output is as follows:
10-02 17:22:34.423: INFO/gps(6671): Provider gps is has status changed to 1. Extras: Bundle[mParcelledData.dataSize=52]
First GPS update is faked:
10-02 17:22:49.383: INFO/gps(6671): Location provided by location provider: Location[mProvider=gps,mTime=-1000,mLatitude=25.0,mLongitude=23.0,mHasAltitude=true,mAltitude=0.0,mHasSpeed=false,mSpeed=0.0,mHasBearing=false,mBearing=0.0,mHasAccuracy=false,mAccuracy=0.0,mExtras=Bundle[mParcelledData.dataSize=52]]
10-02 17:22:49.444: INFO/gps(6671): Provider gps is has status changed to 2. Extras: Bundle[mParcelledData.dataSize=52]
According to http://developer.android.com/reference/android/location/LocationProvider.html#AVAILABLE , that 2 maps to "Available".
As soon as that "Available" gets set, no other locations get passed through. Seems a bit counterintuitive.
I believe you are experiencing a bug in the GPS driver of the emulator.
A workaround for the 1.5 versions of the SDK is included in the bug report. To quote from there:
In the emulator, on the Home Screen, press "Menu" -> "Settings" -> "Date & Time" -> Uncheck "Automatic" -> "Select Time Zone", and choose the right time zone (ie, yours).
A fix is included in the 1.6 release of the SDK.
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