Apps Unable to start activity

[waltenio]

I got a error message "04-21 18:02:01.448: E/AndroidRuntime(328): java.lang.RuntimeException: Unable to start activity ComponentInfo{pac.bib/pac.bib.LivroBibliaActivity}: java.lang.NullPointerException" when click ListView.
when try startActivity

Can help???

my code is:

[B]private AdapterView.OnItemClickListener onListClick=new AdapterView.OnItemClickListener() {
            public void onItemClick(AdapterView<?> parent,
                                    View view, int position,
                                    long id) 
            {                       
                
                Intent i=new Intent(pac.bib.IniciaLivroActivity.this, pac.bib.LivroBibliaActivity.class);

                i.putExtra(ID_EXTRA, String.valueOf(id));                    
         [COLOR=Red]
                startActivity(i);[/COLOR]               
            }
        };[/B]

my AndroidManifest.xml is:

[B]<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="pac.bib"
    android:versionCode="1"
    android:versionName="1.0" >

    <uses-sdk android:minSdkVersion="8" />

    <application
        android:icon="@drawable/ic_launcher"
        android:label="@string/app_name" >
        <activity
            android:name=".BibPilotoActivity"
            android:label="@string/app_name" >
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <activity android:name=".IniciaLivroActivity"></activity>
        <activity android:name=".LivroBibliaActivity"></activity>
    </application>

</manifest>

[/B]

 

[jonbonazza]

can we see the whole log cat ouput?

And also, please go back and place your code in

 tags so it retains its formatting.

 

[waltenio]

Here is LogCat


05-02 00:56:48.487: E/AndroidRuntime(324): FATAL EXCEPTION: main
05-02 00:56:48.487: E/AndroidRuntime(324): java.lang.RuntimeException: Unable to start activity ComponentInfo{pac.bib/pac.bib.LivroBibliaActivity}: java.lang.NullPointerException
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.os.Handler.dispatchMessage(Handler.java:99)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.os.Looper.loop(Looper.java:123)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread.main(ActivityThread.java:4627)
05-02 00:56:48.487: E/AndroidRuntime(324): at java.lang.reflect.Method.invokeNative(Native Method)
05-02 00:56:48.487: E/AndroidRuntime(324): at java.lang.reflect.Method.invoke(Method.java:521)
05-02 00:56:48.487: E/AndroidRuntime(324): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
05-02 00:56:48.487: E/AndroidRuntime(324): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
05-02 00:56:48.487: E/AndroidRuntime(324): at dalvik.system.NativeStart.main(Native Method)
05-02 00:56:48.487: E/AndroidRuntime(324): Caused by: java.lang.NullPointerException
05-02 00:56:48.487: E/AndroidRuntime(324): at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:330)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.database.sqlite.SQLiteQueryBuilder.query(SQLiteQueryBuilder.java:280)
05-02 00:56:48.487: E/AndroidRuntime(324): at pac.bib.LivroHelper.getCursor(LivroHelper.java:163)
05-02 00:56:48.487: E/AndroidRuntime(324): at pac.bib.LivroBibliaActivity.onCreate(LivroBibliaActivity.java:59)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
05-02 00:56:48.487: E/AndroidRuntime(324): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
05-02 00:56:48.487: E/AndroidRuntime(324): ... 11 more

 

[jonbonazza]

Your problem isn't that you can't start an Activity, but you are receiving a NullPointerException. This means you are trying to access and object that hasn't been initialized.