java - Android 查询 - 检测位置

标签 java android geolocation android-query aquery

我正在使用 Android Query 来检测用户的位置。

出于某种原因，当我尝试检索我的纬度和经度时，它显示了我之前的位置，该位置在几百米之外，就好像它被缓存了一样。

这可能是什么问题？

public class LocationHelper {
    private Context mContext;
    private double latitude;
    private double longitude;

    public LocationHelper(Context mContext) {
        this.mContext = mContext;
        location_ajax();
    }

    public double getLatitude() {
        return latitude;
    }

    public double getLongitude() {
        return longitude;
    }

    private void location_ajax() {
        // Get the location
        LocationAjaxCallback cb = new LocationAjaxCallback();
        cb.weakHandler(this, "locationCb");
        cb.async(mContext);
    }

    public void locationCb(String url, Location loc, AjaxStatus status) {
        if (loc != null) {
            //Toast.makeText(mContext, loc.toString(), Toast.LENGTH_LONG).show();
            this.latitude = loc.getLatitude();
            this.longitude = loc.getLongitude();            
        } else {
            Toast.makeText(mContext, mContext.getString(R.string.msg_could_not_retrieve_location), Toast.LENGTH_LONG).show();
        }
    }   
}

日志:

03-19 23:03:17.146: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:17.146: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:17.146: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:17.146: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:17.146: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:17.146: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:17.146: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:17.146: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:17.146: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:17.146: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:17.146: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)
03-19 23:03:17.146: W/AQuery(29954):    ... 9 more
03-19 23:03:20.001: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:20.001: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:20.001: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:20.001: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:20.001: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:20.001: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:20.001: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:20.001: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:20.001: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:20.001: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:20.001: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)
03-19 23:03:20.001: W/AQuery(29954):    ... 9 more
03-19 23:03:20.671: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:20.671: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:20.671: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:20.671: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:20.671: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:20.671: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:20.671: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:20.671: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:20.671: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:20.671: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:20.671: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)
03-19 23:03:20.671: W/AQuery(29954):    ... 9 more
03-19 23:03:20.906: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:20.906: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:20.906: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:20.906: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:20.906: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:20.906: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:20.906: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:20.906: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:20.906: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:20.906: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:20.906: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)
03-19 23:03:20.906: W/AQuery(29954):    ... 9 more
03-19 23:03:21.061: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:21.061: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:21.061: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:21.061: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:21.061: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:21.061: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:21.061: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:21.061: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:21.061: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:21.061: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:21.061: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)
03-19 23:03:21.061: W/AQuery(29954):    ... 9 more
03-19 23:03:21.486: W/AQuery(29954): reporting:java.lang.reflect.InvocationTargetException
03-19 23:03:21.486: W/AQuery(29954):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 23:03:21.486: W/AQuery(29954):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeMethod(AQUtility.java:206)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.util.AQUtility.invokeHandler(AQUtility.java:183)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.callback.AbstractAjaxCallback.callback(AbstractAjaxCallback.java:577)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.failure(LocationAjaxCallback.java:192)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback.access$3(LocationAjaxCallback.java:183)
03-19 23:03:21.486: W/AQuery(29954):    at com.androidquery.callback.LocationAjaxCallback$Listener.run(LocationAjaxCallback.java:308)
03-19 23:03:21.486: W/AQuery(29954):    at java.util.Timer$TimerImpl.run(Timer.java:284)
03-19 23:03:21.486: W/AQuery(29954): Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
03-19 23:03:21.486: W/AQuery(29954):    at android.os.Handler.<init>(Handler.java:121)
03-19 23:03:21.486: W/AQuery(29954):    at android.widget.Toast$TN.<init>(Toast.java:361)
03-19 23:03:21.486: W/AQuery(29954):    at android.widget.Toast.<init>(Toast.java:97)
03-19 23:03:21.486: W/AQuery(29954):    at android.widget.Toast.makeText(Toast.java:254)
03-19 23:03:21.486: W/AQuery(29954):    at uk.ac.gla.project.helpers.LocationHelper.locationCb(LocationHelper.java:46)

有可靠的替代品吗？

最佳答案

为什么这么复杂？使用 Google Play Services .它们是免费的并且使用复杂 Location Strategies

关于java - Android 查询 - 检测位置，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22518952/

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