我想爲項目使用OSMdroid,並且我完全無法使最簡單的代碼工作。 好吧,幾天前我能夠顯示地圖等,現在我甚至不能實例化一個MapView。 我將代碼縮減爲其sipmlest形式。 我使用eclipse工作。我下載osmdroid-Android的3.0.5.jar和SLF4J-Android的1.5.8.jar,我通過增加線到classpath文件不可能實例化一個OsmDroid MapView
<classpathentry kind="lib" path="lib/osmdroid-android-3.0.5.jar"/>
<classpathentry kind="lib" path="lib/slf4j-android-1.5.8.jar"/>
或者通過右鍵點擊他們,那麼他們包含在項目構建路徑 - >添加到構建路徑(既給了相同的結果,無論如何)
然後我輸入驗證碼
import android.app.Activity;
import org.osmdroid.tileprovider.tilesource.TileSourceFactory;
import org.osmdroid.util.GeoPoint;
import org.osmdroid.views.MapController;
import org.osmdroid.views.MapView;
import android.os.Bundle;
public class TestMapActivity extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
MapView mv=new MapView(this,256);
}
}
而且在模擬器上運行它時,我得到了一個錯誤:
04-17 09:10:31.181: E/AndroidRuntime(595): FATAL EXCEPTION: main
04-17 09:10:31.181: E/AndroidRuntime(595): java.lang.NoClassDefFoundError: org.osmdroid.views.MapView
04-17 09:10:31.181: E/AndroidRuntime(595): at testmap.sagem.TestMapActivity.onCreate(TestMapActivity.java:17)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.Activity.performCreate(Activity.java:4465)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1049)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1920)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1981)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.ActivityThread.access$600(ActivityThread.java:123)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1147)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.os.Handler.dispatchMessage(Handler.java:99)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.os.Looper.loop(Looper.java:137)
04-17 09:10:31.181: E/AndroidRuntime(595): at android.app.ActivityThread.main(ActivityThread.java:4424)
04-17 09:10:31.181: E/AndroidRuntime(595): at java.lang.reflect.Method.invokeNative(Native Method)
04-17 09:10:31.181: E/AndroidRuntime(595): at java.lang.reflect.Method.invoke(Method.java:511)
04-17 09:10:31.181: E/AndroidRuntime(595): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
04-17 09:10:31.181: E/AndroidRuntime(595): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
04-17 09:10:31.181: E/AndroidRuntime(595): at dalvik.system.NativeStart.main(Native Method)
當我註釋掉「MapView mv = new MapView(this,256);」它的工作原理,所以我不明白爲什麼mapview不能實例化。
對此有何想法?
感謝您的關注。
編輯: 的AndroidManifest.xml中
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="testmap.sagem"
android:versionCode="1"
android:versionName="1.0" >
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-sdk android:minSdkVersion="15" />
<application
android:icon="@drawable/ic_launcher"
android:label="@string/app_name" >
<activity
android:name=".TestMapActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>
main.xml中的文件:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
</LinearLayout>
Ooooh。上帝祝福你。我不認爲這會起作用,但確實如此。 – 2012-04-17 10:55:09
這不適合我。 – 2012-05-28 17:38:41