Question

我正在开发和Android应用程序，其中我必须使用谷歌地图API。我必须在特定位置（纬度和经度）的标记上显示气球信息。我成功地获得了经纬度。对于显示baloon的叠加层我使用CustomItemizedOverlay但是我收到NoClassDefFoundError错误。

这是我想要实现的图片 enter image description here

以下是名为BTAddLocation的类的代码。

CustomItemizedOverlay<CustomOverlayItem> itemizedOverlay;
            drawable = getResources().getDrawable(R.drawable.mark_red);
            itemizedOverlay = new CustomItemizedOverlay<CustomOverlayItem>(
                    drawable, mapView);

            CustomOverlayItem overlayItem = new CustomOverlayItem(geoPoint,
                    name, getArea(),
                    index);
            itemizedOverlay.addOverlay(overlayItem);

            mapOverlays.add(itemizedOverlay);

我在第3行遇到错误。错误是

07-19 19:57:21.194: E/AndroidRuntime(8764): java.lang.NoClassDefFoundError: com.colony.radar.CustomItemizedOverlay
07-19 19:57:21.194: E/AndroidRuntime(8764): at com.colony.radar.BTAddLocation.onCreate(BTAddLocation.java:102)

这是CustomItemizedOverlay类

import java.util.ArrayList;

import android.content.Context;
import android.graphics.drawable.Drawable;
import android.widget.Toast;

import com.google.android.maps.MapView;
import com.google.android.maps.OverlayItem;

import com.readystatesoftware.mapviewballoons.BalloonItemizedOverlay;
import com.readystatesoftware.mapviewballoons.BalloonOverlayView;

public class CustomItemizedOverlay<Item extends OverlayItem> extends BalloonItemizedOverlay<CustomOverlayItem> {

private ArrayList<CustomOverlayItem> m_overlays = new ArrayList<CustomOverlayItem>();
private Context c;

public CustomItemizedOverlay(Drawable defaultMarker, MapView mapView) {
    super(boundCenter(defaultMarker), mapView);
    c = mapView.getContext();
}

public void addOverlay(CustomOverlayItem overlay) {
    m_overlays.add(overlay);
    populate();
}

@Override
protected CustomOverlayItem createItem(int i) {
    return m_overlays.get(i);
}

@Override
public int size() {
    return m_overlays.size();
}

@Override
protected boolean onBalloonTap(int index, CustomOverlayItem item) {
    //Toast.makeText(c, "onBalloonTap for overlay index " + index,
        //  Toast.LENGTH_LONG).show();
    return true;
}

@Override
protected BalloonOverlayView<CustomOverlayItem> createBalloonOverlayView() {
    // use our custom balloon view with our custom overlay item type:
    return new CustomBalloonOverlayView<CustomOverlayItem>(getMapView().getContext(), getBalloonBottomOffset());
}

}

这是CustomOverlayItem类

import com.google.android.maps.GeoPoint;
import com.google.android.maps.OverlayItem;

public class CustomOverlayItem extends OverlayItem {

    protected int mIndex;

    public CustomOverlayItem(GeoPoint point, String title, String snippet, int index) {
        super(point, title, snippet);
        mIndex = index;
    }

    public int getImageIndex() {
        return mIndex;
    }

    public void setImageIndex(int index) {
        this.mIndex = index;
    }

}

这是CustomBalloonOverlayView类

import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
import android.widget.TextView;

import com.google.android.maps.OverlayItem;
import com.readystatesoftware.mapviewballoons.BalloonOverlayView;
//import com.readystatesoftware.mapviewballoons.R;

public class CustomBalloonOverlayView<Item extends OverlayItem> extends BalloonOverlayView<CustomOverlayItem> {

    private TextView title;
    private TextView snippet;
    private ImageView image;

    public static int[] resId = { R.drawable.unknown_icon_white,
        R.drawable.desktop_icon_white, R.drawable.desktop_icon_white,
        R.drawable.desktop_icon_white, R.drawable.laptop_icon_white,
        R.drawable.desktop_icon_white, R.drawable.desktop_icon_white,
        R.drawable.desktop_icon_white, R.drawable.phone_icon_white,
        R.drawable.phone_icon_white, R.drawable.phone_icon_white,
        R.drawable.phone_icon_white, R.drawable.phone_icon_white,
        R.drawable.phone_icon_white, R.drawable.headphones_icon_white,
        R.drawable.headset_icon_white, R.drawable.headphones_icon_white,
        R.drawable.mic_icon_white, R.drawable.speaker_icon_white,
        R.drawable.headphones_icon_white, R.drawable.speaker_icon_white,
        R.drawable.speaker_icon_white, R.drawable.speaker_icon_white,
        R.drawable.speaker_icon_white, R.drawable.video_icon_white,
        R.drawable.video_icon_white, R.drawable.video_icon_white,
        R.drawable.video_icon_white, R.drawable.speaker_icon_white,
        R.drawable.video_icon_white, R.drawable.gamepad_icon_white,
        R.drawable.wearable_icon_white, R.drawable.wearable_icon_white,
        R.drawable.wearable_icon_white, R.drawable.wearable_icon_white,
        R.drawable.wearable_icon_white, R.drawable.wearable_icon_white,
        R.drawable.gamepad_icon_white, R.drawable.gamepad_icon_white,
        R.drawable.gamepad_icon_white, R.drawable.gamepad_icon_white,
        R.drawable.gamepad_icon_white, R.drawable.gamepad_icon_white,
        R.drawable.health_icon_white, R.drawable.health_icon_white,
        R.drawable.health_icon_white, R.drawable.health_icon_white,
        R.drawable.health_icon_white, R.drawable.health_icon_white,
        R.drawable.health_icon_white, R.drawable.health_icon_white, };



    public CustomBalloonOverlayView(Context context, int balloonBottomOffset) {
        super(context, balloonBottomOffset);
    }

    @Override
    protected void setupView(Context context, final ViewGroup parent) {

        // inflate our custom layout into parent
        LayoutInflater inflater = (LayoutInflater) context
                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        View v = inflater.inflate(R.layout.baloon_overlay_built, parent);

        // setup our fields
        title = (TextView) v.findViewById(R.id.balloon_item_title);
        snippet = (TextView) v.findViewById(R.id.balloon_item_snippet);
        image = (ImageView) v.findViewById(R.id.balloon_item_image);

    }

    @Override
    protected void setBalloonData(CustomOverlayItem item, ViewGroup parent) {

        // map our custom item data to fields
        title.setText(item.getTitle());
        snippet.setText(item.getSnippet());
        image.setImageResource(resId[item.getImageIndex()]);


    }

    private class FetchImageTask extends AsyncTask<String, Integer, Bitmap> {
        @Override
        protected Bitmap doInBackground(String... arg0) {
            Bitmap b = null;
            try {
                 b = BitmapFactory.decodeStream((InputStream) new URL(arg0[0]).getContent());
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } 
            return b;
        }   
    }

}

Answer 1

看一下这个链接:) http://android.foxykeep.com/dev/how-to-fix-the-classdefnotfounderror-with-adt-17

的NoClassDefFoundError

1 个答案: