Facebook與Android SDK 3.0連接

Question

我嘗試在我的應用程序中使用Facebook身份驗證，但是我無法登錄，我總是重定向到詢問我是否允許該應用程序訪問我的信息的表單（即代碼中的“ dologin”方法） ..這是我的代碼：

package com.fbconnect;

import android.app.Activity;
import android.os.Bundle;
import com.facebook.*;
import com.facebook.model.*;
import com.facebook.widget.*;

import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;
import android.content.Intent;

public class MainActivity extends Activity {

    private TextView textInstructionsOrLink;
    private Button buttonLoginLogout;

    private Session.StatusCallback statusCallback = new SessionStatusCallback();

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        buttonLoginLogout = (Button)findViewById(R.id.login_button);
        setContentView(R.layout.main);
        Settings.addLoggingBehavior(LoggingBehavior.INCLUDE_ACCESS_TOKENS);
        Session session = Session.getActiveSession();
        if (session == null) {
            if (savedInstanceState != null) {
                session = Session.restoreSession(this, null, statusCallback, savedInstanceState);
            }
            if (session == null) {
                session = new Session(this);
            }
            Session.setActiveSession(session);
            if (session.getState().equals(SessionState.CREATED_TOKEN_LOADED)) {
                session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback));
            }
        }

        updateView();

    }

    @Override
    public void onStart() {
        super.onStart();
        Session.getActiveSession().addCallback(statusCallback);
    }

    @Override
    public void onStop() {
        super.onStop();
        Session.getActiveSession().removeCallback(statusCallback);
    }

    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        Session session = Session.getActiveSession();
        Session.saveSession(session, outState);
    }

    private void updateView() {
        Session session = Session.getActiveSession();
        Log.i("session log", session.toString());
        if (session.isOpened()) {
            TextView welcome = (TextView) findViewById(R.id.welcome);
            welcome.setText("Hello !");
        } else {

            doLogin();
        }
    }

    private void doLogin() {
        Session session = Session.getActiveSession();
        if (!session.isOpened() && !session.isClosed()) {
            session.openForRead(new Session.OpenRequest(this).setCallback(statusCallback));
        } else {
            Session.openActiveSession(this, true, statusCallback);
        }
    }

    private class SessionStatusCallback implements Session.StatusCallback {
        @Override
        public void call(Session session, SessionState state, Exception exception) {
            updateView();
        }
    }
}

Answer 1

問題實際上來自密鑰哈希，我在Windows上有幾個愚蠢的問題，這里有一些建議：

• 不要使用Windows cmd，而是通過cygwin
• 不要使用％HOMEPATH％（即使已在Facebook上標出），也請使用長距離路徑：“ C：\\ Users \\ ... \\。android \\ debug.keystore”
• 在密鑰庫路徑中用引號引起來（即使其中沒​​有空格）
• 如果生成器未要求您輸入密碼，則該密碼將不起作用，則您在命令中做錯了什么