login（View v）函数，这是由xml中的onClick属性定义的
我的代码在
内的某处崩溃请不要我仔细检查 -App id -Hash Key
当我在清单中添加com.facebook.LoginActivity时，也会发生一些奇怪的事情。我每次打开编辑器编辑代码时，整个eclipse都会显示一个空指针异常（在中心的对话框中）。然后我重启日食
public void login(View v){
// start Facebook Login
Session.openActiveSession(this, true, new Session.StatusCallback() {
// callback when session changes state
@Override
public void call(Session session, SessionState state, Exception exception) {
if (session.isOpened()) {
// make request to the /me API
Request.newMeRequest(session, new Request.GraphUserCallback() {
// callback after Graph API response with user object
@Override
public void onCompleted(GraphUser user, Response response) {
if (user != null) {
/* TextView tw=(TextView) findViewById(R.id.tt1);
tw.setText(user.getName());
*/
}
}
}).executeAsync();
}
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
// TODO Auto-generated method stub
super.onActivityResult(requestCode, resultCode, data);
Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}
日志数据
08-16 03:05:43.203: E/AndroidRuntime(22094): FATAL EXCEPTION: main
08-16 03:05:43.203: E/AndroidRuntime(22094): java.lang.IllegalStateException: Could not execute method of the activity
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.view.View$1.onClick(View.java:3598)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.view.View.performClick(View.java:4091)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.view.View$PerformClick.run(View.java:17072)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.os.Handler.handleCallback(Handler.java:615)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.os.Handler.dispatchMessage(Handler.java:92)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.os.Looper.loop(Looper.java:153)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.app.ActivityThread.main(ActivityThread.java:5034)
08-16 03:05:43.203: E/AndroidRuntime(22094): at java.lang.reflect.Method.invokeNative(Native Method)
08-16 03:05:43.203: E/AndroidRuntime(22094): at java.lang.reflect.Method.invoke(Method.java:511)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:821)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:584)
08-16 03:05:43.203: E/AndroidRuntime(22094): at dalvik.system.NativeStart.main(Native Method)
08-16 03:05:43.203: E/AndroidRuntime(22094): Caused by: java.lang.reflect.InvocationTargetException
08-16 03:05:43.203: E/AndroidRuntime(22094): at java.lang.reflect.Method.invokeNative(Native Method)
08-16 03:05:43.203: E/AndroidRuntime(22094): at java.lang.reflect.Method.invoke(Method.java:511)
08-16 03:05:43.203: E/AndroidRuntime(22094): at android.view.View$1.onClick(View.java:3593)
08-16 03:05:43.203: E/AndroidRuntime(22094): ... 11 more
08-16 03:05:43.203: E/AndroidRuntime(22094): Caused by: java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.facebook.Session.postActiveSessionAction(Session.java:1570)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.facebook.Session.setActiveSession(Session.java:977)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.facebook.Session.openActiveSession(Session.java:1132)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.facebook.Session.openActiveSession(Session.java:1017)
08-16 03:05:43.203: E/AndroidRuntime(22094): at com.example.jokes.Joking.login(Joking.java:297)
08-16 03:05:43.203: E/AndroidRuntime(22094): ... 14 more