Question

我正在尝试实例化一项服务，用于测试我们正在整合的位置系统。基本上，我接受了这项服务：http://developer.android.com/training/location/location-testing.html并将相关的类导入我的项目中。我想要的是一个后台服务，它将在运行时将模拟位置传播到所有LocationClient。

我项目的清单如下：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="air.com.sourceco.mobile.test"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="18" />

    <instrumentation
        android:name="android.test.InstrumentationTestRunner"
        android:targetPackage="air.com.sourceco.mobile" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <uses-library android:name="android.test.runner" />
        <service android:name="com.sourceco.mobile.location.test.SendMockLocationService"
            android:exported="true" android:label="@string/app_name">
            <intent-filter>
                <action android:name="com.sourceco.mobile.location.test.SendMockLocationService"></action>
            </intent-filter>
        </service>
    </application>

</manifest>

我在Eclipse中有两个项目 - 我的原始Sourceco项目，它具有我想要测试的功能，以及我的SourcecoTest项目，它具有JUnit测试。以下是我拥有的课程（TestLocation，SendMockLocationService和LocationUtils几乎逐字逐句从Google网站上复制，但已将其更改为不同的测试位置。

LocationHelperTest.java（我正在使用的主要课程，在com.sourceco.mobile.location.test包中）：

package com.sourceco.mobile.location.test;

import android.content.Intent;
import android.location.Location;
import android.os.Bundle;
import android.test.AndroidTestCase;

import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
import com.sourceco.mobile.location.GPLocationServicesConsumer;

public class LocationHelperTest extends AndroidTestCase implements ConnectionCallbacks {

  private GPLocationServicesConsumer mConsumer;

  // According to the documentation, we should always set the provider to "flp",
  // which is the location provider code that Location Services puts into the
  // Location objects it sends out.
  public static final String PROVIDER = "flp";

  // Latitude and Longitude of:
  // Captain Tony's Saloon, 428 Greene Street, Key West, FL 33040
  public static final double LAT = 24.558760;
  public static final double LON = -81.805434;
  public static final float ACCURACY = 10.0f;

  private Intent mServiceIntent;

  @Override
  public void setUp() {
    // Start our service for mock location processing
    mServiceIntent = new Intent("com.sourceco.mobile.location.test.SendMockLocationService");
    mContext.startService(mServiceIntent);

    mConsumer = new GPLocationServicesConsumer(mContext);
    mConsumer.notifyActivityCreated();
    mConsumer.notifyActivityStarted();

  }

  @Override
  public void tearDown() {
    mContext.stopService(mServiceIntent);
  }

  public Location createLocation(double lat, double lon, float acc) {
    Location newLocation = new Location(PROVIDER);
    newLocation.setLatitude(lat);
    newLocation.setLongitude(lon);
    newLocation.setAccuracy(acc);
    return newLocation;
  }

  public void testLocationRetrieval() throws InterruptedException {
    // Arrange
    Location mockLocation = createLocation(LAT, LON, ACCURACY);

    // Act
    Location testLocation = mConsumer.getLocation();

    // Assert
    assertEquals("Latitudes should be equal", mockLocation.getLatitude(), testLocation.getLatitude());
    assertEquals("Longitudes should be equal", mockLocation.getLongitude(), testLocation.getLongitude());
    assertEquals("Accuracies should be equal", mockLocation.getAccuracy(), testLocation.getAccuracy());
  }

  @Override
  public void onConnected(Bundle arg0) {
  }

  @Override
  public void onDisconnected() {

  }
}

但是，当我运行测试时，我得到以下内容：

java.lang.RuntimeException: Unable to instantiate service 
    com.sourceco.mobile.location.test.SendMockLocationService: 
    java.lang.ClassNotFoundException: Didn't find class 
    "com.sourceco.mobile.location.test.SendMockLocationService" on path: 
    DexPathList[[zip file "/system/framework/android.test.runner.jar", 
    zip file "/data/app/air.com.sourceco.mobile.test-2.apk"],
    nativeLibraryDirectories=[/data/app-lib/air.com.sourceco.mobile.test-2, 
    /vendor/lib, /system/lib]]

    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2556)
    at android.app.ActivityThread.access$1800(ActivityThread.java:135)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:136)
    at android.app.ActivityThread.main(ActivityThread.java:5017)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595)
    at dalvik.system.NativeStart.main(Native Method)

Caused by: java.lang.ClassNotFoundException: Didn't find class 
    "com.sourceco.mobile.location.test.SendMockLocationService" on path: 
    DexPathList[[zip file "/system/framework/android.test.runner.jar", 
    zip file "/data/app/air.com.sourceco.mobile.test-2.apk"],
    nativeLibraryDirectories=[/data/app-lib/air.com.sourceco.mobile.test-2, 
    /vendor/lib, /system/lib]]

    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:497)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:457)
    at android.app.ActivityThread.handleCreateService(ActivityThread.java:2553)
    ... 10 more

最初，我认为这是由谷歌播放服务没有正确导入引起的，但它是在原始的Sourceco项目中导入的，而这似乎并不是它所抱怨的。相反，它抱怨它无法找到SendMockLocationService的类定义。

知道这里会发生什么吗？我不太清楚为什么这项服务不会启动我的测试。

加载服务时无法在同一项目中找到类

0 个答案: