Google map application program crashes at the launch

Question

I have been trying to add a map to my application, I have followed instructions on the android developers HelloGoogleMaps tutorial but my map is just force closing when I run the maps option. I have obtained my api key logged permissions in manifest

  <?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.MappDemo.mymaps"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="7" />


    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" android:debuggable="true" >
        <activity
            android:name=".MappingDemoActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                 <uses-library android:name="com.google.android.maps" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>

        </activity>
        <activity android:name=".ShowTheMap" android:label="Lat/Long Location"> </activity>
        <activity android:name=".MapMe" android:label="Track Present Location"> </activity>
        <uses-library android:name="com.google.android.maps" />
         <uses-permission android:name="android.permission.INTERNET" />
          <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
        <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    </application>

</manifest>

Can some one tell if any thing needs to be configured in addition to run the code?

03-25 11:50:52.217: I/Process(687): Sending signal. PID: 687 SIG: 9
03-25 11:51:00.557: D/AndroidRuntime(729): Shutting down VM
03-25 11:51:00.567: W/dalvikvm(729): threadid=1: thread exiting with uncaught exception (group=0x40015560)
03-25 11:51:00.627: E/AndroidRuntime(729): FATAL EXCEPTION: main
03-25 11:51:00.627: E/AndroidRuntime(729): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.MappDemo.mymaps/com.MappDemo.mymaps.MappingDemoActivity}: java.lang.ClassCastException: com.MappDemo.mymaps.MappingDemoActivity
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.os.Handler.dispatchMessage(Handler.java:99)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.os.Looper.loop(Looper.java:123)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread.main(ActivityThread.java:3683)
03-25 11:51:00.627: E/AndroidRuntime(729):  at java.lang.reflect.Method.invokeNative(Native Method)
03-25 11:51:00.627: E/AndroidRuntime(729):  at java.lang.reflect.Method.invoke(Method.java:507)
03-25 11:51:00.627: E/AndroidRuntime(729):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
03-25 11:51:00.627: E/AndroidRuntime(729):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
03-25 11:51:00.627: E/AndroidRuntime(729):  at dalvik.system.NativeStart.main(Native Method)
03-25 11:51:00.627: E/AndroidRuntime(729): Caused by: java.lang.ClassCastException: com.MappDemo.mymaps.MappingDemoActivity
03-25 11:51:00.627: E/AndroidRuntime(729):  at com.MappDemo.mymaps.MappingDemoActivity.onCreate(MappingDemoActivity.java:19)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-25 11:51:00.627: E/AndroidRuntime(729):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
03-25 11:51:00.627: E/AndroidRuntime(729):  ... 11 more
03-25 11:51:10.013: I/Process(729): Sending signal. PID: 729 SIG: 9
03-25 11:52:16.817: D/AndroidRuntime(782): Shutting down VM
03-25 11:52:16.817: W/dalvikvm(782): threadid=1: thread exiting with uncaught exception (group=0x40015560)
03-25 11:52:16.877: E/AndroidRuntime(782): FATAL EXCEPTION: main
03-25 11:52:16.877: E/AndroidRuntime(782): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.MappDemo.mymaps/com.MappDemo.mymaps.MappingDemoActivity}: java.lang.ClassCastException: com.MappDemo.mymaps.MappingDemoActivity
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1647)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1663)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread.access$1500(ActivityThread.java:117)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:931)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.os.Handler.dispatchMessage(Handler.java:99)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.os.Looper.loop(Looper.java:123)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread.main(ActivityThread.java:3683)
03-25 11:52:16.877: E/AndroidRuntime(782):  at java.lang.reflect.Method.invokeNative(Native Method)
03-25 11:52:16.877: E/AndroidRuntime(782):  at java.lang.reflect.Method.invoke(Method.java:507)
03-25 11:52:16.877: E/AndroidRuntime(782):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
03-25 11:52:16.877: E/AndroidRuntime(782):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
03-25 11:52:16.877: E/AndroidRuntime(782):  at dalvik.system.NativeStart.main(Native Method)
03-25 11:52:16.877: E/AndroidRuntime(782): Caused by: java.lang.ClassCastException: com.MappDemo.mymaps.MappingDemoActivity
03-25 11:52:16.877: E/AndroidRuntime(782):  at com.MappDemo.mymaps.MappingDemoActivity.onCreate(MappingDemoActivity.java:19)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
03-25 11:52:16.877: E/AndroidRuntime(782):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1611)
03-25 11:52:16.877: E/AndroidRuntime(782):  ... 11 more

this is what I can see in logcat.. this what I have in mappingDemoActivity.java

public class MappingDemoActivity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //add listners for all buttons
        View firstbutton= findViewById(R.id.geocode_button);
        firstbutton.setOnClickListener((OnClickListener) this);
        View secondButton = findViewById(R.id.latlong_button);
        secondButton.setOnClickListener((OnClickListener) this);
        View thirdButton = findViewById(R.id.presentLocation_button);
        thirdButton.setOnClickListener((OnClickListener) this);

    }

    public void onClick(View v)
    {
        switch(v.getId())
        {
        case R.id.geocode_button:
             Log.i("Button","Button 1 pushed");
             Intent j = new Intent(this, ShowTheMap.class);
             startActivity(j);
         break;

         case R.id.latlong_button:
             Log.i("Button","Button 2 pushed");
             Intent k = new Intent(this, ShowTheMap.class);
             startActivity(k);
         break;

         case R.id.presentLocation_button:
             Log.i("Button","Button 3 pushed");
             Intent m = new Intent(this, MapMe.class);
             startActivity(m);
         break; 
        }

    }

Can you add the exception that you are getting in the DDMS... So that we can get an idea on your issue. — Pavandroid, Mar 25 '12 at 06:04
I have put the error .. Please let me know where am i actually going wrong?? — Keerthan Tantry, Mar 25 '12 at 06:27
yea i m using the same.Is it a problem with the simulator?or any thing that i dint configure? — Keerthan Tantry, Mar 25 '12 at 06:39
Seems like This is due to ClassCastException.Paste the line 19 in MappingDemoActivity.java — Pavandroid, Mar 25 '12 at 06:44

score 0 · Answer 1 · edited May 23 '17 at 10:08

Have a look at the Google MapsDemo that is included in the SDK my path is:

C:\android-sdk\add-ons\addon-google_apis-google_inc_-10\samples\MapsDemo

I had a quite anoying problem (MapActivity crashes on some devices) that was only showing up on certain(!) Android devices and also not in the Emulator. What I did was, to strip down the working demo until it was similar to my basic example. Then it turned out that Samsung phones don't accept package names not starting with com., while other devices (HTC Flyer) do! But this is not your problem, since you are using a com. package name.

There might be one more thing that comes to my mind. You didn't post your main.xml. If you use a nested LinearLayout below the MapView this also crashes the app. On top of the MapView it works fine. So in case you are using something like:

<LinearLayout ... >

    <com.google.android.maps.MapView ... />

    <LinearLayout ... >
        <Button .../>   
    </LinearLayout>

</LinearLayout>

This could cause your problem. This is reproducable and throws exactly the same java.lang.ClassCastException error.

Also be sure to have your < uses-permission > and < uses-library > statements in the right place, as the guys said before. The first one must be a direct child of the < manifest > node. The second one must be a direct child of the < application > node.

I hope this helps you. I was going crazy with this stuff.

Bernd

score 0 · Answer 2 · answered Mar 25 '12 at 06:40

0

<uses-permission> tag needs to be a child of <manifest>, not <application>. Try change <uses-permission> position, it can help.

answered Mar 25 '12 at 06:40

dimetil

3,851
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47

i did that even. but same prob. – Keerthan Tantry Mar 25 '12 at 06:47

score 0 · Answer 3 · answered Mar 31 '12 at 07:10

0

Remove this code which is inside <intent-filter>

`<uses-library android:name="com.google.android.maps" />`

Because it is Already there in Below Quote.

answered Mar 31 '12 at 07:10

Bhavin

6,020
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Google map application program crashes at the launch

3 Answers3