最近公司有一個app上線，併發布海外一個版本，對於登入的話就需要接入FaceBook ，Twitter，Instagram登入，首先向講述一下FaceBook的登入接入，到FaceBook官網註冊應用，主要有三個東西，app_id,這個是在程式碼中使用的配置的， shaHash值，這個後面講，然後按照步驟將需要配置都配置一下就好了

第一步：

匯入FaceBook的依賴包，FaceBook的依賴包是.arr庫，我這裡使用的是最新的facebook-android-sdk-4.18.0.aar，也可以直接放在libs庫中使用，在app的build.gradle中配置一下內容即可：

repositories{
    flatDir {
        dirs 'libs'
    }}

在依賴下面新增

 compile(name: 'facebook-android-sdk-4.18.0', ext: 'aar')，

配置清單檔案

<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="@string/facebook_app_id"/>
<activity
tools:replace="android:theme"
android:name="com.facebook.FacebookActivity"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
 
android:theme="@android:style/Theme.Translucent.NoTitleBar"
android:label="@string/app_name"
>
</activity>
<activity
android:name="com.facebook.CustomTabActivity"
android:exported="true">
    <intent-filter>
        <action android:name="android.intent.action.VIEW" />
        <category 
 
android:name="android.intent.category.DEFAULT" />
        <category android:name="android.intent.category.BROWSABLE" />
        <data android:scheme="@string/fb_login_protocol_scheme" />
    </intent-filter>
</activity>

string.xml檔案中的配置

<string name="facebook_app_id">237361146701659</string>  //這個是註冊應用的appId
<string name="fb_login_protocol_scheme">fb1630114020623262</string>

FaceBook的SDK就整合完畢了

第二步：登入的封裝

public class FaceBookPlatform extends Platform {

    private final CallbackManager callbackManager;
    private final List<String> permissions;
    private LoginManager loginManager;
    private Activity context;
    public boolean isFaceBook = false;
    public FaceBookPlatform(final Activity context) {
        super(context);
        this.context = context;
callbackManager = CallbackManager.Factory.create();
getLoginManager().registerCallback(callbackManager, callback);
permissions = Arrays.asList("email", "user_likes",
"user_status", "user_photos", "user_birthday", "public_profile", "user_friends");
}

    //註冊回撥
FacebookCallback<LoginResult> callback = new FacebookCallback<LoginResult>() {
        @Override
public void onSuccess(LoginResult loginResult) {
            isFaceBook = false;
//Toast.makeText(context, "login successful", Toast.LENGTH_SHORT).show();
hideWait();
//獲取使用者資訊
getLoginInfo(loginResult.getAccessToken());
AccessToken accessToken = loginResult.getAccessToken();
String userId = accessToken.getUserId();
String token = accessToken.getToken();
LogUtils.e("------" +"userId=" + userId);
LogUtils.e("------" +"token=" + token);
           if (loginResult.getAccessToken() != null) {
                LogUtils.e("-----  進入主頁面" );
               ********************處理登入成功後的邏輯******************************}
        }

        @Override
public void onCancel() {
            isFaceBook = false;
//取消登入
hideWait();
Toast.makeText(context, "login cancel", Toast.LENGTH_SHORT).show();
}

        @Override
public void onError(FacebookException error) {
            //登入出錯
isFaceBook = false;
hideWait();
Toast.makeText(context, "something wrong", Toast.LENGTH_SHORT).show();
LogUtils.e("------" +"error.toString()=" + error.toString());
}
    };
    public void login(Activity activity) {
        getLoginManager().logInWithReadPermissions(
                activity, permissions);
isFaceBook = true;
}

    /**
     * 退出
     */
public void logout() {
        String logout = context.getResources().getString(
                com.facebook.R.string.com_facebook_loginview_log_out_action);
String cancel = context.getResources().getString(
                com.facebook.R.string.com_facebook_loginview_cancel_action);
String message;
Profile profile = Profile.getCurrentProfile();
        if (profile != null && profile.getName() != null) {
            message = String.format(
                    context.getResources().getString(
                            com.facebook.R.string.com_facebook_loginview_logged_in_as),
profile.getName());
} else {
            message = context.getResources().getString(
                    com.facebook.R.string.com_facebook_loginview_logged_in_using_facebook);
}
        AlertDialog.Builder builder = new AlertDialog.Builder(context);
builder.setMessage(message)
                .setCancelable(true)
                .setPositiveButton(logout, new DialogInterface.OnClickListener() {
                    public void onClick(DialogInterface dialog, int which) {
                        getLoginManager().logOut();
}
                })
                .setNegativeButton(cancel, null);
builder.create().show();
}


    private LoginManager getLoginManager() {
        if (loginManager == null) {
            loginManager = LoginManager.getInstance();
}
        return loginManager;
}


    public void getLoginInfo(AccessToken accessToken) {
        GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
            @Override
public void onCompleted(JSONObject object, GraphResponse response) {
                if (object != null) {
                    String id = object.optString("id");
String name = object.optString("name");
String gender = object.optString("gender");
String emali = object.optString("email");
JSONObject object_pic = object.optJSONObject("picture");
JSONObject object_data = object_pic.optJSONObject("data");
String photo = object_data.optString("url");
//獲取地域資訊
String locale = object.optString("locale");
// Toast.makeText(context, "" + object.toString(), Toast.LENGTH_SHORT).show();
}
            }
        });
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale," +
                "updated_time,timezone,age_range,first_name,last_name");
request.setParameters(parameters);
request.executeAsync();
}


    public CallbackManager getCallbackManager() {
        return callbackManager;
}

    /**
     * 設定介面回撥
     *
     */
private FacebookListener facebookListener;
    public void setFacebookListener(FacebookListener facebookListener) {
        this.facebookListener = facebookListener;
}

    public interface FacebookListener {
        void facebookLoginSuccess();
        void facebookLoginFail();
}

    public boolean getIssFaceBook() {
        return isFaceBook;
}
}

第三部：在activity設定點選事件的地方呼叫：

//建立登入平臺的物件

 faceBookPlatform = new FaceBookPlatform(this);

  faceBookPlatform.login(this);

//重寫onActivityResult方法

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    //faceBook的回撥
if (faceBookPlatform.getIssFaceBook()) {
        faceBookPlatform.getCallbackManager().onActivityResult(requestCode, resultCode, data);

    super.onActivityResult(requestCode, resultCode, data);
}

重要提示：需要的在application中初始化FaceBook的SDK

//初始化faceBook的SDK
FacebookSdk.sdkInitialize( getApplicationContext());

注意點

並且當你在用手機測試的時候如果手機裝了FaceBook是登入出錯的，因為測試的時候是用的debug的apk,而在註冊應用的時候核算shahash值的時候使用的release的apk，他們的hash值不一樣，測試只能開啟網頁登入

另外還有一個類

public class Platform  {

    public Context context;
    private ProgressLoad load;
    public Platform(Context context){
        this.context = context;
init();
}

    private void init(){
        if(load == null){
            load = new ProgressLoad(context);
}
    }

    public void showWait(){
        load.show();
}

    public void hideWait(){
        load.dismiss();
}
}

公司整合使用正常：如有問題請指出