包com.google.android.maps不能得到解决 [英] Package com.google.android.maps cannot be resolved
问题描述
我要导入这些包进口com.google.android.maps.MapActivity;
进口com.google.android.maps.MapController;
进口com.google.android.maps.MapView;
在我mainactivity.java
I want to import these packages
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
in my mainactivity.java
但是Eclipse无法解决这些包，我不知道这样做的原因。
But Eclipse cannot resolve these packages , and i don't know the reason for this.
我已经照着所有我上一本电子书中，一步一步的指示，就如何导入地图在你的应用程序，并且有这个错误只字不提。
I've followed all the instructions i found on an e-book , step by step,on how to import maps in your app, and there is nothing mentioned about this error.
下面是我的文件：
/////////// MainActivity.java /////////////////////
/////////// MainActivity.java /////////////////////
package com.paad.whereami;
import java.io.IOException;
import java.util.List;
import java.util.Locale;
import com.google.android.maps.MapActivity;
import com.google.android.maps.MapController;
import com.google.android.maps.MapView;
import android.app.Activity;
import android.content.Context;
import android.location.Address;
import android.location.Criteria;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
public class MainActivity extends MapActivity {
//static final private int MENU_REFRESH = Menu.FIRST;
@Override
protected boolean isRouteDisplayed() {
return false;
}
private LocationManager locationManager;
private String provider;
private Location location;
private final LocationListener locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
updateWithNewLocation(location);
}
public void onProviderDisabled(String provider){
updateWithNewLocation(null);
}
public void onProviderEnabled(String provider){ }
public void onStatusChanged(String provider, int status, Bundle extras){ }
};
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.map_layout);
mapView = (MapView)findViewById(R.id.map_view);
locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
criteria.setAltitudeRequired(false);
criteria.setBearingRequired(false);
criteria.setCostAllowed(true);
criteria.setPowerRequirement(Criteria.POWER_LOW);
provider = locationManager.getBestProvider(criteria, true);
location = locationManager.getLastKnownLocation(provider);
//Log.v("BEFORE", "Location is: " + location);
updateWithNewLocation(location);
//Log.v("AFTER", "LOCATION FOUND");
locationManager.requestLocationUpdates(provider, 2000, 10, locationListener);
}
private void updateWithNewLocation(Location location){
String latLongString;
TextView myLocationText;
myLocationText = (TextView)findViewById(R.id.myLocationText);
String addressString = "No address found";
if (location != null) {
double lat = location.getLatitude();
double lng = location.getLongitude();
latLongString = "Lat:" + lat + "\nLong:" + lng;
//double latitude = 73.147536;
//double longitude = 0.510638;
Geocoder gc = new Geocoder(this, Locale.getDefault());
try {
List<Address> addresses = gc.getFromLocation(lat, lng, 1);
Log.v("TRY_BODY", "All addresses are: " + addresses);
StringBuilder sb = new StringBuilder();
if (addresses.size() > 0) {
Log.v("IF_BODY", "All addresses are: " + addresses);
Address address = addresses.get(0);
for (int i = 0; i < address.getMaxAddressLineIndex(); i++){
sb.append(address.getAddressLine(i)).append("\n");
sb.append(address.getLocality()).append("\n");
sb.append(address.getPostalCode()).append("\n");
sb.append(address.getCountryName());
}
addressString = sb.toString();
}
} catch (IOException e) {}
}
else {
latLongString = "No location found";
}
myLocationText.setText("Current Pos:\n"+latLongString+"\n"+addressString);
}
}
//////////// main.xml中/////////////////
//////////// main.xml /////////////////
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<TextView
android:id="@+id/myLocationText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
/>
<com.google.android.maps.MapView
android:id="@+id/myMapView"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:enabled="true"
android:clickable="true"
android:apiKey="@string/myMapKey"
/>
</LinearLayout>
//////////////的Manifest.xml ////////////////
////////////// Manifest.xml ////////////////
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.paad.whereami"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="4"
android:targetSdkVersion="15" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.INTERNET"/>
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<uses-library android:name="com.google.android.maps"/>
<activity
android:name=".MainActivity"
android:label="@string/title_activity_main" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
先谢谢了。
推荐答案
在您的项目中右击--->属性 - > Android的 - >选择目标名称谷歌的API。和清洁工程和建设项目。
Right click on your projects ---> properties ---> android --> select target name Google ApIs. And Clean projects and Build the projects.
这篇关于包com.google.android.maps不能得到解决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IT屋！
