button in meiner app hängt sich auf

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout xmlns:android="h ttp://schemas.android.com/apk/res/android"
3 android:layout_width="fill_parent"
4 android:layout_height="fill_parent"
5 android:gravity="center"
6 android:orientation="vertical" >
7
8 <TextView
9 android:layout_width="wrap_content"
10 android:layout_height="wrap_content"
11 android:text="@string/hello" />
12 <Button
13 android:id="@+id/button1"
14 android:layout_width="fill_parent"
15 android:layout_height="wrap_content"
16 android:layout_alignParentLeft="true"
17 android:layout_below="@+id/editText4"
18 android:layout_marginTop="20dp"
19 android:onClick="onClickButton"
20 android:text="menu"/>
21
22
23 </LinearLayout>

1<?xml version="1.0" encoding="utf-8"?>
2<LinearLayout
3xmlns:android="h ttp://schemas.android.com/apk/res/android"
4 android:layout_width="fill_parent"
5 android:layout_height="fill_parent"
6 android:orientation="vertical">
7
8 <TextView
9 android:text="hello"/>
10
11</LinearLayout>

1package com.mycompany.myapp8;
2
3import android.app.*;
4import android.content.*;
5import android.os.*;
6import android.view.*;
7
8public class MainActivity extends Activity
9{
10 /** Called when the activity is first created. */
11 @Override
12 public void onCreate(Bundle savedInstanceState)
13 {
14 super.onCreate(savedInstanceState);
15 setContentView(R.layout.main);
16 }
17 public void onClickButton (View view) {
18 Intent intent = new Intent (this, activizi.class);
19 startActivity(intent); finish();
20}}

1<?xml version="1.0" encoding="utf-8"?>
2<manifest xmlns:android="h ttp://schemas.android.com/apk/res/android"
3 package="com.mycompany.myapp8"
4 android:versionCode="1"
5 android:versionName="1.0" >
6
7 <uses-sdk
8 android:minSdkVersion="8"
9 android:targetSdkVersion="11" />
10
11 <application
12 android:icon="@drawable/ic_launcher"
13 android:label="@string/app_name" >
14 <activity
15 android:label="@string/app_name"
16 android:name=".MainActivity" >
17 <intent-filter >
18 <action android:name="android.intent.action.MAIN" />
19
20 <category android:name="android.intent.category.LAUNCHER" />
21 </intent-filter>
22 </activity>
23 <activity
24 android:label="@string/app_name"
25 android:name=".activizi" >
26 </activity>
27 </application>
28
29</manifest>