最近在写一个类似微博的项目，我仿照了新浪微博写了一个好友界面，在网上找了个新浪好友界面相似的例子，用了一个ListView，想给ListView增加一个HeaderView,可是我增加了之后报如下错误：
11-29 10:17:42.629: E/AndroidRuntime(1163): FATAL EXCEPTION: main
11-29 10:17:42.629: E/AndroidRuntime(1163): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.wind.weibo/com.wind.weibo.activity.MainActivity}: java.lang.ClassCastException: android.widget.HeaderViewListAdapter
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread.access$2300(ActivityThread.java:125)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.os.Handler.dispatchMessage(Handler.java:99)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.os.Looper.loop(Looper.java:123)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread.main(ActivityThread.java:4627)
11-29 10:17:42.629: E/AndroidRuntime(1163): at java.lang.reflect.Method.invokeNative(Native Method)
11-29 10:17:42.629: E/AndroidRuntime(1163): at java.lang.reflect.Method.invoke(Method.java:521)
11-29 10:17:42.629: E/AndroidRuntime(1163): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
11-29 10:17:42.629: E/AndroidRuntime(1163): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
11-29 10:17:42.629: E/AndroidRuntime(1163): at dalvik.system.NativeStart.main(Native Method)
11-29 10:17:42.629: E/AndroidRuntime(1163): Caused by: java.lang.ClassCastException: android.widget.HeaderViewListAdapter
11-29 10:17:42.629: E/AndroidRuntime(1163): at com.wind.weibo.view.SideBar.setListView(SideBar.java:43)
11-29 10:17:42.629: E/AndroidRuntime(1163): at com.wind.weibo.activity.MainActivity.setView(MainActivity.java:104)
11-29 10:17:42.629: E/AndroidRuntime(1163): at com.wind.weibo.activity.MainActivity.onCreate(MainActivity.java:62)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047)
11-29 10:17:42.629: E/AndroidRuntime(1163): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627)
11-29 10:17:42.629: E/AndroidRuntime(1163): ... 11 more
下面是我写的代码：
LinearLayout headerView = (LinearLayout) LayoutInflater.from(this).inflate(R.layout.weibo_friends_listheader, null);
mFriendsContact.addHeaderView(headerView);
如果上面的代码注释的话就不报错。
mFriendsContact.setAdapter(new FriendListViewAdapter(this, mNicks));
mIndexBar.setListView(mFriendsContact);
下面是好友界面Demo中的一个自定义的View：
public class SideBar extends View {
private char[] mL;
private SectionIndexer mSectionIndexter = null;
private ListView mList;
private TextView mDialogText;
private final int mM_nItemHeight = 15;
public SideBar(Context context) {
super(context);
init();
}
public SideBar(Context context, AttributeSet attrs) {
super(context, attrs);
init();
}