How to use from XML?

[amigax]

Hey, programatically its working pretty good, but how do I load from XML? I tried this:

<com.qozix.map.MapView
    android:id="@+id/mymap"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
</com.qozix.map.MapView>

And the error:

java.lang.RuntimeException: Unable to resume activity {thrillseeker.app.paultons/thrillseeker.app.paultons.activities.ScrollingMapActivity}: android.view.InflateException: Binary XML file line #10: Error inflating class com.qozix.map.MapView
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2120)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:2135)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1668)
at android.app.ActivityThread.access$1500(ActivityThread.java:117)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3683)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
at dalvik.system.NativeStart.main(Native Method)
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class com.qozix.map.MapView
at android.view.LayoutInflater.createView(LayoutInflater.java:508)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:570)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:623)
at android.view.LayoutInflater.inflate(LayoutInflater.java:408)
at android.view.LayoutInflater.inflate(LayoutInflater.java:320)
at android.view.LayoutInflater.inflate(LayoutInflater.java:276)
at com.actionbarsherlock.internal.ActionBarSherlockCompat.setContentView(ActionBarSherlockCompat.java:857)
at com.actionbarsherlock.app.SherlockActivity.setContentView(SherlockActivity.java:218)
at thrillseeker.app.paultons.activities.ScrollingMapActivity.onResumeX(ScrollingMapActivity.java:37)
at thrillseeker.app.silverputty.view.SilverActivity.onResume(SilverActivity.java:808)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1150)
at android.app.Activity.performResume(Activity.java:3832)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:2110)
... 12 more
Caused by: java.lang.NoSuchMethodException: MapView(Context,AttributeSet)
at java.lang.Class.getMatchingConstructor(Class.java:643)
at java.lang.Class.getConstructor(Class.java:472)
at android.view.LayoutInflater.createView(LayoutInflater.java:480)
... 24 more

[moagrius]

It's currently not set up to inflate from XML. For a very basic implementation, you'd need to add a couple different signatures to the constructor... something like this might work (untested):

public MapView(Context context){
    super(context);
    setup();
}
public MapView(Context context, AttributeSet attrs) {
    super(context, attrs);
    setup();
}

public MapView(Context context, AttributeSet attrs, int defStyle) {
    super(context, attrs, defStyle);
    setup();
}

private void setup(){
    zoomManager = new ZoomManager();
    touchLayer = new TouchLayer(context);
    touchLayer.setGestureListener(touchLayerListener);
    addView(touchLayer);        
    tileLayer = new TileLayer(context);
    touchLayer.addLayer(tileLayer);     
    pathLayer = new PathLayer(context);
    touchLayer.addLayer(pathLayer);     
    markerLayer = new MarkerLayer(context);
    touchLayer.addLayer(markerLayer);
    requestUpdate();
}

I haven't implemented it fully since best practice would be to offer other options (tile size, patterns, etc), which isn't as straightforward.