...like I said, it was something obvious. Thanks man!
On Sep 22, 10:26 am, justinh <[email protected]> wrote:
> mapview is the id of your RelativeLayout, which contains your MapView,
> but it not a MapView itself.
>
> On Sep 22, 1:21 pm, Lex <[email protected]> wrote:
>
> > ...I really don't understand how something this simple (and I have
> > done it before) doesn't work. I'm pretty sure it will turn out that I
> > am missing something obvious.
>
> > I just created a MapView, all it does is show the map and when I
> > allocate mapView to it's layout, there's a ClassCastException:
>
> > import com.google.android.maps.MapActivity;
> > import com.google.android.maps.MapView;
>
> > import android.app.Activity;
> > import android.os.Bundle;
>
> > public class PPMMap extends MapActivity {
>
> > public MapView mapView;
>
> > /** Called when the activity is first created. */
> > @Override
> > public void onCreate(Bundle savedInstanceState) {
> > super.onCreate(savedInstanceState);
> > setContentView(R.layout.main);
>
> > mapView = (MapView) findViewById(R.id.mapview); // THROWS
> > CLASSCASTEXCEPTION
> > mapView.setBuiltInZoomControls(true);
>
> > }
>
> > @Override
> > protected boolean isRouteDisplayed() {
> > // TODO Auto-generated method stub
> > return false;
> > }
>
> > }
>
> > <?xml version="1.0" encoding="utf-8"?>
>
> > <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/
> > android"
> > android:id="@+id/mapview"
> > android:orientation="vertical"
> > android:layout_width="fill_parent"
> > android:layout_height="fill_parent" >
>
> > <com.google.android.maps.MapView
> > android:layout_width="fill_parent"
> > android:layout_height="fill_parent"
> > android:apiKey="****************"
> > />
>
> > </RelativeLayout>
>
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730):
> > java.lang.RuntimeException: Unable to start activity ComponentInfo
> > {....patyo.PPMMap}: java.lang.ClassCastException:
> > android.widget.RelativeLayout
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > 2268)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:
> > 2284)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread.access$1800(ActivityThread.java:112)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread$H.handleMessage(ActivityThread.java:1692)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.os.Handler.dispatchMessage(Handler.java:99)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.os.Looper.loop(Looper.java:123)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread.main(ActivityThread.java:3948)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > java.lang.reflect.Method.invokeNative(Native Method)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > java.lang.reflect.Method.invoke(Method.java:521)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run
> > (ZygoteInit.java:782)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > com.android.internal.os.ZygoteInit.main(ZygoteInit.java:540)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > dalvik.system.NativeStart.main(Native Method)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): Caused by:
> > java.lang.ClassCastException: android.widget.RelativeLayout
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730):
> > at ....PPMMap.onCreate(PPMMap.java:21)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:
> > 1123)
> > 09-22 17:16:03.676: ERROR/AndroidRuntime(730): at
> > android.app.ActivityThread.performLaunchActivity(ActivityThread.java:
> > 2231)
>
> > Call me an idiot, but I just don't get it.
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