我已经向应用添加了mapview活动,尝试打开mapView activivty会导致崩溃。我不熟悉这个问题,这里的其他线程倾向于引用libs,我似乎没有,或类路径,这可能是问题,但我真的不明白。
12-12 18:01:26.075: E/AndroidRuntime(4655): FATAL EXCEPTION: main 12-12 18:01:26.075: E/AndroidRuntime(4655): java.lang.NoClassDefFoundError: com.b00517566.weekST.MyMapViewer 12-12 18:01:26.075: E/AndroidRuntime(4655): at com.b00517566.weekST.WeekSevenTwoActivity.updateWeatherView(WeekSevenTwoActivity.java:144) 12-12 18:01:26.075: E/AndroidRuntime(4655): at com.b00517566.weekST.WeekSevenTwoActivity.access$0(WeekSevenTwoActivity.java:142) 12-12 18:01:26.075: E/AndroidRuntime(4655): at com.b00517566.weekST.WeekSevenTwoActivity$1.onClick(WeekSevenTwoActivity.java:63) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.view.View.performClick(View.java:4202) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.view.View$PerformClick.run(View.java:17340) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.os.Handler.handleCallback(Handler.java:725) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.os.Handler.dispatchMessage(Handler.java:92) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.os.Looper.loop(Looper.java:137) 12-12 18:01:26.075: E/AndroidRuntime(4655): at android.app.ActivityThread.main(ActivityThread.java:5039) 12-12 18:01:26.075: E/AndroidRuntime(4655): at java.lang.reflect.Method.invokeNative(Native Method) 12-12 18:01:26.075: E/AndroidRuntime(4655): at java.lang.reflect.Method.invoke(Method.java:511) 12-12 18:01:26.075: E/AndroidRuntime(4655): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:793) 12-12 18:01:26.075: E/AndroidRuntime(4655): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:560) 12-12 18:01:26.075: E/AndroidRuntime(4655): at dalvik.system.NativeStart.main(Native Method)
public class MyMapViewer extends MapActivity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {//class begins
super.onCreate(savedInstanceState);
setContentView(R.layout.my_mapview);//sets the layout to the xml
MapView mapView = (MapView) findViewById(R.id.mapview);//creates a new mapview initialisation
mapView.setBuiltInZoomControls(true);//adds the zoom function to the map
List<Overlay> mapOverlays = mapView.getOverlays();//the mapOverlay listobject is initialised to teh mapView
Drawable drawable = this.getResources().getDrawable(R.drawable.station_icon);//points to marker icon
MyItemizedOverlay itemizedoverlay = new MyItemizedOverlay(drawable, this);//instantiates Itemizer
GeoPoint point = new GeoPoint((int)(54.684624 * 1e6),
(int)(-5.880218 * 1e6));//converts double cords to microdegrees for Geopoint
OverlayItem overlayitem = new OverlayItem(point, "Jordanstown", "Shore Road, Newtownabbey, Belfast, Antrim BT370QB ");
GeoPoint point1 = new GeoPoint((int)(54.66370520273512 * 1e6),
(int)(-5.930986404418945 * 1e6));//converts double cords to microdegrees for Geopoint
OverlayItem overlayitem2 = new OverlayItem(point1, "Valley JuiJitsu Club", "Valley Park Newtownabbey BT36 6");
GeoPoint point2 = new GeoPoint((int)(54.644600844283104 * 1e6),
(int)(-5.666391849517822 * 1e6));//converts double cords to microdegrees for Geopoint
OverlayItem overlayitem3 = new OverlayItem(point2, "Peninsula Martial Arts", "3 Balloo Link, Bangor, Down BT19 7HJ");
itemizedoverlay.addOverlay(overlayitem); //calls teh addOverlay method
mapOverlays.add(itemizedoverlay);//adds above to the itemizedoverlay
}//end of class
@Override
protected boolean isRouteDisplayed() {
// TODO Auto-generated method stub
return false;
}//a necessary generated method
}
代码看起来很好,所以问题应该与编辑器或项目属性中的某些内容有关。关于如何解决这个问题的任何建议都将不胜感激。
清单
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.b00517566.weekST" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="9" /> <uses-permission android:name="android.permission.INTERNET"/> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".WeekSevenTwoActivity" android:label="@string/app_name" > </activity> <activity android:name="splash"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <activity android:name="MyMapViewer" android:theme="@android:style/Theme.NoTitleBar"> </activity> </application> </manifest>
private void updateWeatherView() {
startActivity(new Intent(this, MyMapViewer.class));
}//end of method
正如您所看到的那样,非常简单,没有其他MyMapViewer类
答案 0 :(得分:2)
<uses-library android:name="com.google.android.maps" />
mainfest添加此库
并添加权限
<!--permissions -->
<uses-permission
android:name="android.permission.INTERNET">
</uses-permission>
<uses-permission
android:name="android.permission.ACCESS_FINE_LOCATION">
</uses-permission>