[Solved] Map And NullPointerException

problem · by **problem** » Mon Dec 31, 2007 6:16 pm

Anyone else having a problem where the newest version of the emulator is throwing a nullpointerexception when trying to display a map view. It worked great in an early version of the emulator now it throws an error.

Example code:

KudoMap.java

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/**
 
 * KudoStar Map Activity
 
 */
 
package com.kudostar.android.kudostar;
 
import android.os.Bundle;
 
import com.google.android.maps.MapActivity;
 
/**
 
 * @author mike
 
 *
 
 */
 
public class KudoMap extends MapActivity {
 
    @Override
 
    protected void onCreate(Bundle icicle) {
 
            // TODO Auto-generated method stub
 
            super.onCreate( icicle );
 
            setContentView( R.layout.view_map );
 
    }
 
}
 
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view_map.xml

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<?xml version="1.0" encoding="utf-8"?>
 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent">
 
    <view id="@+id/kudomap" class="com.google.android.maps.MapView" android:layout_width="fill_parent" android:layout_height="fill_parent" android:layout_weight="1" />
 
</LinearLayout>
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problem · by **problem** » Wed Jan 02, 2008 4:37 pm

Fixed.

Remove "userdata.img" and "emulator.cfg" from:

Windows:
C:\Documents and Settings\ [YOUR_USER] \Local configuration\Application Data\Android

OSX:
/Users/ [YOUR_USER] /.android

plusminus · by **plusminus** » Thu Jan 03, 2008 2:01 pm

Hello 'problem',

yes, after updating the Emulator, there are often problems. Deleting the userdata.img-File is the easiest way.
Another solution is to run the emulator once with the "-wipe-data" parameter.

Regards,
plusminus

bavarol · by **bavarol** » Mon Mar 17, 2008 8:38 pm

Hi, I have done what you said but other userdata.img and emulator.cfg is created.
I have written once at command line "-wipe-data" but it doesn't work.

My SDK Version is M3rc22.

Regards

erbedo · by **erbedo** » Tue Mar 18, 2008 9:38 am

You can upgrade the sdk, and then you have to run emulator -wipe-data, not only the last part of the command

[Solved] Map And NullPointerException

[Solved] Map And NullPointerException

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