离线osm应用程序上的触摸事件方法(应用程序强制关闭)

时间:2013-03-02 15:33:27

标签: android osmdroid

这是离线osm地图的应用。该应用程序可以正常运行没有敏感的类,但在添加touchy()类之后应用程序关闭

import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Canvas;
import android.graphics.Color;
import android.location.LocationManager;
import android.os.Bundle;
import android.view.MotionEvent;

public class MainActivity extends Activity implements OpenStreetMapContributorConstants{
    long start,stop;
     Context t;
     MyLocationOverlay compass;
     private MapView m_mapView;
     List overlaylist ; 

    // Default map zoom level:
    private int MAP_DEFAULT_ZOOM = 12;

    // Default map Latitude:
    private double MAP_DEFAULT_LATITUDE =  31.039109;

    // Default map Longitude:
    private double MAP_DEFAULT_LONGITUDE = 31.381073;

    private org.osmdroid.views.MapController mMapController;
    int mIncr = 10000;

     @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        // Specify the XML layout to use:
        setContentView(R.layout.activity_main);       
        m_mapView =(MapView) findViewById(R.id.mapview);
        List<Overlay> overlaylist = m_mapView.getOverlays();
        touchy t =new touchy();
        overlaylist.add(t);



         compass =new MyLocationOverlay(MainActivity.this,m_mapView);
         overlaylist.add(compass);
        // Setup the mapView controller:
        m_mapView.setBuiltInZoomControls(true);
        m_mapView.setMultiTouchControls(true);
        m_mapView.setClickable(true);
        m_mapView.setUseDataConnection(false);
        m_mapView.getController().setZoom(MAP_DEFAULT_ZOOM);
        m_mapView.getController().setCenter(
            new GeoPoint(MAP_DEFAULT_LATITUDE, MAP_DEFAULT_LONGITUDE));
        m_mapView.setTileSource(TileSourceFactory.MAPNIK);
        LocationManager locationManager = (LocationManager)         getSystemService(Context.LOCATION_SERVICE);
        GeoPoint gPt0 = new GeoPoint(31.039109, 31.381073);
        GeoPoint gPt1 = new GeoPoint(gPt0.getLatitudeE6()+ mIncr, gPt0.getLongitudeE6());
        GeoPoint gPt2 = new GeoPoint(gPt0.getLatitudeE6()+ mIncr, gPt0.getLongitudeE6() + mIncr);
        GeoPoint gPt3 = new GeoPoint(gPt0.getLatitudeE6(), gPt0.getLongitudeE6() + mIncr);
        mMapController = m_mapView.getController();

        mMapController.setCenter(gPt0);

        PathOverlay myPath = new PathOverlay(Color.RED, this);
        myPath.addPoint(gPt0);
        myPath.addPoint(gPt1);
        myPath.addPoint(gPt2);
        myPath.addPoint(gPt3);
        myPath.addPoint(gPt0);
        m_mapView.getOverlays().add(myPath);
    }


       @Override
    protected void onPause() {
        // TODO Auto-generated method stub
        compass.disableCompass();
        super.onPause();
    }

    @Override
    protected void onResume() {
        // TODO Auto-generated method stub
        compass.getMyLocation();
        compass.enableMyLocation();
        compass.runOnFirstFix(new Runnable(){
               public void run() {
               // First time: removes the circle and draws a dot.
               // Second time: removes the circle and dot, and draw a new dot. 
               m_mapView.getOverlays().clear();
               m_mapView.getOverlays().add(compass);
               m_mapView.postInvalidate();
               }

        });
        compass.enableCompass();
        super.onResume();
        }
    class touchy extends Overlay{



        public touchy() {
            // TODO Auto-generated constructor stub
            super(t);
        }

        public boolean onTouchEvent(MotionEvent e,MapView m){
            if(e.getAction() ==MotionEvent.ACTION_DOWN){
                start = e.getEventTime();
            }if(e.getAction() ==MotionEvent.ACTION_UP){
                stop = e.getEventTime();
            }if(stop - start >3000){
                AlertDialog alert =new AlertDialog.Builder(MainActivity.this).create();
                alert.setTitle("Enter the street Condition");
                alert.setMessage("you must enter the condition ");
                alert.setButton("OK", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub

                    }
                });
                 alert.setButton2("OK", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        // TODO Auto-generated method stub

                    }
                });
                 alert.setButton3("OK", new DialogInterface.OnClickListener() {

                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub

                    }
                });
                 alert.show();
                 return true;
            }
            return false;

        }

        @Override
        protected void draw(Canvas arg0, MapView arg1, boolean arg2) {
            // TODO Auto-generated method stub

        }

    }

} 

03-11 14:46:24.775:D / TextLayoutCache(3156):使用调试级别:0 - 启用调试:0

03-11 14:46:24.905:D / AndroidRuntime(3156):关闭虚拟机 03-11 14:46:24.905:W / dalvikvm(3156):threadid = 1:线程退出未捕获异常(组= 0x2b542210) 03-11 14:46:24.905:E / AndroidRuntime(3156):致命异常:主要 03-11 14:46:24.905:E / AndroidRuntime(3156):java.lang.NullPointerException 03-11 14:46:24.905:E / AndroidRuntime(3156):at org.osmdroid.views.overlay.OverlayManager.onDraw(OverlayManager.java:107) 03-11 14:46:24.905:E / AndroidRuntime(3156):at org.osmdroid.views.MapView.dispatchDraw(MapView.java:818) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.drawChild(ViewGroup.java:2989) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.dispatchDraw(ViewGroup.java:2593) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.drawChild(ViewGroup.java:2989) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.dispatchDraw(ViewGroup.java:2593) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.drawChild(ViewGroup.java:2989) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.dispatchDraw(ViewGroup.java:2593) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.drawChild(ViewGroup.java:2989) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewGroup.dispatchDraw(ViewGroup.java:2593) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.View.draw(View.java:11085) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.widget.FrameLayout.draw(FrameLayout.java:462) 03-11 14:46:24.905:E / AndroidRuntime(3156):at com.android.internal.policy.impl.PhoneWindow $ DecorView.draw(PhoneWindow.java:2145) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewRootImpl.draw(ViewRootImpl.java:2026) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1634) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2442) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.os.Handler.dispatchMessage(Handler.java:99) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.os.Looper.loop(Looper.java:137) 03-11 14:46:24.905:E / AndroidRuntime(3156):在android.app.ActivityThread.main(ActivityThread.java:4441) 03-11 14:46:24.905:E / AndroidRuntime(3156):at java.lang.reflect.Method.invokeNative(Native Method) 03-11 14:46:24.905:E / AndroidRuntime(3156):at java.lang.reflect.Method.invoke(Method.java:511) 03-11 14:46:24.905:E / AndroidRuntime(3156):at com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run(ZygoteInit.java:784) 03-11 14:46:24.905:E / AndroidRuntime(3156):at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551) 03-11 14:46:24.905:E / AndroidRuntime(3156):at dalvik.system.NativeStart.main(Native Method)  ##

0 个答案:

没有答案