[英]java.lang.IllegalStateException: GoogleApiClient must be connected
[英]java.lang.IllegalStateException: Action Bar Tab must have a Callback
我正在嘗試向我的應用程序添加一個帶有4個選項卡的ActionBarSherlock
。 我試圖從SherlockActivity延長then
SherlockFragmentActivity`,但我仍然得到這個異常:
java.lang.IllegalStateException:Action Bar Tab必須有一個Callback。
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.ResponseHandler;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import org.apache.http.params.HttpProtocolParams;
import org.json.JSONArray;
import org.json.JSONObject;
import com.actionbarsherlock.app.ActionBar;
import com.actionbarsherlock.app.ActionBar.Tab;
import com.actionbarsherlock.app.ActionBar.TabListener;
import com.actionbarsherlock.app.SherlockActivity;
import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import twitter4j.Status;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.StrictMode;
import android.preference.PreferenceManager;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.View.OnClickListener;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class HomeActivity extends SherlockFragmentActivity implements OnClickListener, OnItemClickListener, TabListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.homelayout);
try{
ActionBar actionBar = getSupportActionBar();
actionBar.setDisplayHomeAsUpEnabled(true);
actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS);
Tab homeTab = actionBar.newTab();
homeTab.setIcon(R.drawable.tab_home);
Tab exploreTab = actionBar.newTab();
exploreTab.setIcon(R.drawable.tab_explore);
Tab leaderBoardTab = actionBar.newTab();
leaderBoardTab.setIcon(R.drawable.tab_leaderboard);
Tab profileTab = actionBar.newTab();
profileTab.setIcon(R.drawable.tab_profile);
actionBar.addTab(homeTab);
actionBar.addTab(exploreTab);
actionBar.addTab(leaderBoardTab);
actionBar.addTab(profileTab);
}catch(Exception ex){
Log.e("error from onCreate" , ex.toString());
Log.e("error from onCreate" , ex.getStackTrace().toString());
}
}
@Override
public void onTabSelected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
@Override
public void onTabUnselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
@Override
public void onTabReselected(Tab tab, FragmentTransaction ft) {
// TODO Auto-generated method stub
}
}
在將選項卡添加到actionBar之前,必須在選項卡上注冊ActionBar.TabListener。
在你的情況下:
Tab homeTab = actionBar.newTab();
homeTab.setTabListener(this) //'this' because your activity implements a TabListener
...
actionBar.addTab(homeTab);
否則我會建議你在他們自己的類中實現你的監聽器,這樣你的Activity就不會失去它的目的,而且也很容易被忽視和讀取。
您可以像這樣重復選項卡監聽器
ActionBar.Tab tab1 = actionBar.newTab();
tab1.setText("Tab 1");
tab1.setTabListener(this);
ActionBar.Tab tab2 = actionBar.newTab();
tab2.setText("Tab 2");
tab2.setTabListener(this);
ActionBar.Tab tab3 = actionBar.newTab();
tab3.setText("Tab 3");
tab2.setTabListener(this); **// this is must be tab3 not tab2**
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