我正在尝试使用facebook登录我的应用程序.我有一个主要活动和几个片段.使用facebook sdk 3.5.2我通过facebook官方教程做了一次,但是当我添加这一行时,authButton.setFragment(this);
它给了我一个错误,我的片段不是一个片段.
(LoginButton类型中的方法setFragment(Fragment)不适用于参数(FaceobookLoginFragment))
我正在将主要类的片段添加到动作栏中
ActionBar bar = getActionBar(); bar.setDisplayShowHomeEnabled(false); bar.setDisplayShowTitleEnabled(false); bar.setNavigationMode(ActionBar.NAVIGATION_MODE_TABS); String FloginTitle = "Flogin"; ActionBar.Tab FloginTab = bar.newTab(); FloginTab.setText(FloginTitle); FloginTab.setTabListener(new TabListener(this, FloginTitle, FaceobookLoginFragment.class)); bar.addTab(FloginTab);
这是听众
public class TabListener implements ActionBar.TabListener{ private final FragmentActivity fActivity; private final String ftag; private final Class fragmentClass; private Fragment fragment; public TabListener(FragmentActivity activity, String tag, Class fragmentClass ) { this.fActivity = activity; this.ftag = tag; this.fragmentClass = fragmentClass; this.fragment = activity.getFragmentManager().findFragmentByTag(tag); } @Override public void onTabReselected(Tab tab, android.app.FragmentTransaction ft) { // TODO Auto-generated method stub } @Override public void onTabSelected(Tab tab, android.app.FragmentTransaction ft) { if (fragment == null) { // instantiate a new fragment for the given class fragment = Fragment.instantiate(fActivity, fragmentClass.getName()); // place in the default root viewgroup - android.R.id.content ft.replace(android.R.id.content, fragment, ftag); } else { if (fragment.isDetached()) ft.attach(fragment); } } @Override public void onTabUnselected(Tab tab, android.app.FragmentTransaction ft) { if (fragment != null) { ft.detach(fragment); } }
和Facebook片段
public class FaceobookLoginFragment extends Fragment { private static final String TAG = "FBLOGINFRAGMENT"; private UiLifecycleHelper uiHelper; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); uiHelper = new UiLifecycleHelper(getActivity(), callback); uiHelper.onCreate(savedInstanceState); } @Override public void onActivityCreated(Bundle savedInstanceState) { super.onActivityCreated(savedInstanceState); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View view = inflater.inflate(R.layout.facebook_login_layout, container, false); LoginButton authButton = (LoginButton) view.findViewById(R.id.authButton); authButton.setFragment(new FaceobookLoginFragment()); return view; } private void onSessionStateChange(Session session, SessionState state, Exception exception) { if (state.isOpened()) { Log.i(TAG , "Logged in..."); } else if (state.isClosed()) { Log.i(TAG, "Logged out..."); } } private Session.StatusCallback callback = new Session.StatusCallback() { @Override public void call(Session session, SessionState state, Exception exception) { onSessionStateChange(session, state, exception); } }; @Override public void onResume() { super.onResume(); uiHelper.onResume(); } @Override public void onActivityResult(int requestCode, int resultCode, Intent data) { super.onActivityResult(requestCode, resultCode, data); uiHelper.onActivityResult(requestCode, resultCode, data); } @Override public void onPause() { super.onPause(); uiHelper.onPause(); } @Override public void onDestroy() { super.onDestroy(); uiHelper.onDestroy(); } @Override public void onSaveInstanceState(Bundle outState) { super.onSaveInstanceState(outState); uiHelper.onSaveInstanceState(outState); } // prints a hashkey for facebook app data public void printHashKey() { try { PackageInfo info = getActivity().getPackageManager().getPackageInfo("com.mio.discounthunter", PackageManager.GET_SIGNATURES); for (Signature signature : info.signatures) { MessageDigest md = MessageDigest.getInstance("SHA"); md.update(signature.toByteArray()); Log.d("TEMPTAGHASH KEY:", Base64.encodeToString(md.digest(), Base64.DEFAULT)); } } catch (NameNotFoundException e) { } catch (NoSuchAlgorithmException e) { } }
更新:发现原因.. facebook sdk只适用于android支持库,因此解决方案是使用import android.support.v4.app.*遍布我的应用程序并重新考虑涉及支持库的所有内容...