我正在我的项目中进行facebook集成。但问题是，当我点击Facebook登录按钮时，它显示正在加载并返回到主屏幕。任何人都可以告诉我这是什么问题？
这是我的MainActivity： -
public class MainActivity extends AppCompatActivity {
private FacebookData mFacebookData;
private Button mLoginButton;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mFacebookData = new FacebookData();
mLoginButton = (Button) findViewById(R.id.button);
mLoginButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
callFacebookLogin();
}
});
}
private void callFacebookLogin() {
Session session = Session.getActiveSession();
if (session != null) {
Log.e("session :", "session already build");
Request request = Request.newMeRequest(session, new Request.GraphUserCallback() {
@Override
public void onCompleted(GraphUser user, Response response) {
if (user != null) {
String str = user.getName();
try {
String id = user.getId();
String firstname = user.getFirstName();
String lastname = user.getLastName();
String pic = "http://graph.facebook.com/" + id + "/picture?type=large";
Log.e("id....", id);
Log.e("firstname....", firstname);
mFacebookData.setId(id);
mFacebookData.setFirstname(firstname);
mFacebookData.setLastname(lastname);
mFacebookData.setPicture(pic);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
Request.executeBatchAsync(request);
} else {
Session.openActiveSession(MainActivity.this, true, new Session.StatusCallback() {
@Override
public void call(Session session, SessionState state, Exception exception) {
if (session.isOpened()) {
if (state == SessionState.OPENED) {
Request request = Request.newMeRequest(session, new Request.GraphUserCallback() {
@Override
public void onCompleted(GraphUser user, Response response) {
if (user != null) {
String str = user.getName();
}
try {
String id = user.getId();
String firstname = user.getFirstName();
String lastname = user.getLastName();
String pic = "http://graph.facebook.com/"
+ id
+ "/picture?type=large";
mFacebookData.setId(id);
mFacebookData.setFirstname(firstname);
mFacebookData.setLastname(lastname);
mFacebookData.setPicture(pic);
} catch (Exception e) {
e.printStackTrace();
}
}
});
Request.executeBatchAsync(request);
}
}
}
});
}
}
}
这是我的清单： -
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.aaa.examplepractise">
<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<application
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:supportsRtl="true"
android:theme="@style/AppTheme">
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.facebook.LoginActivity"
android:screenOrientation="portrait" />
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="@string/APP_ID" />
</application>
</manifest>
这是我的Logcat： -
09-27 10:35:24.405 20441-20615/com.example.aaa.examplepractise E/ActivityThread: Failed to find provider info for com.facebook.katana.provider.AttributionIdProvider
09-27 10:35:24.582 20441-20441/com.example.aaa.examplepractise E/ActivityThread: Failed to find provider info for com.facebook.katana.provider.PlatformProvider
09-27 10:35:24.583 20441-20441/com.example.aaa.examplepractise E/ActivityThread: Failed to find provider info for com.facebook.wakizashi.provider.PlatformProvider
答案 0 :(得分：0)
由于以下原因，可能会发生这种情况：
尝试使用最新方法
在你的片段类中包括：
private FacebookCallback<LoginResult> mFacebookCallback = new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
Log.d("Login", "onSuccess");
GraphRequest.newMeRequest(
loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject me, GraphResponse response) {
if (response.getError() != null) {
// handle error
} else {
email = me.optString("email");
String id = me.optString("id");
String social_id=me.optString("id");
String name= me.optString("name");
String gender= me.optString("gender");
boolean verified_user= me.optBoolean("is_verified");
}
}
}).executeAsync();
}
@Override
public void onCancel () {
Log.d("Login", "onCancel");
}
@Override
public void onError (FacebookException e){
Log.d("Login", "onError " + e);
}
};
在oncreateView方法中包含以下代码：
btn_facebook = (LoginButton) v.findViewById(R.id.btn_fb);
btn_facebook.setFragment(this);
btn_facebook.setReadPermissions(Arrays.asList("public_profile, email,user_friends"));
btn_facebook.registerCallback(mCallbackManager, mFacebookCallback);
在oncreate方法中添加以下代码：
FacebookSdk.sdkInitialize(getContext());
mCallbackManager = CallbackManager.Factory.create();
setupTokenTracker();
setupProfileTracker();
mTokenTracker.startTracking();
mProfileTracker.startTracking();
try {
PackageInfo info = getActivity().getPackageManager().getPackageInfo("package name here", PackageManager.GET_SIGNATURES);
for (Signature signature : info.signatures) {
MessageDigest md = MessageDigest.getInstance("SHA");
md.update(signature.toByteArray());
// Log.e("Key", Base64.encodeToString(md.digest(), Base64.DEFAULT));
}
} catch (Exception ex) {
StringWriter errors = new StringWriter();
ex.printStackTrace(new PrintWriter(errors));
// Log.e("Error", errors.toString());
}
TokenTracker和PRofileTracker方法：
private void setupTokenTracker() {
mTokenTracker = new AccessTokenTracker() {
@Override
protected void onCurrentAccessTokenChanged(AccessToken oldAccessToken, AccessToken currentAccessToken) {
// Log.d("VIVZ", "" + currentAccessToken);
}
};
}
private void setupProfileTracker() {
mProfileTracker = new ProfileTracker() {
@Override
protected void onCurrentProfileChanged(Profile oldProfile, Profile currentProfile) {
// Log.d("VIVZ", "" + currentProfile);
}
};
}
在onaCtivityResult中，您将获得数据，所以添加如下：
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
// Log.e("info", "onActivityResult:" + requestCode + ":" + resultCode + ":" + data);
Bundle bundle = data.getExtras();
for (String key : bundle.keySet()) {
Object value = bundle.get(key);
}
mCallbackManager.onActivityResult(requestCode, resultCode, data);
}
在Gradle文件中添加以下依赖项：
compile＆＃39; com.facebook.android：facebook-android-sdk：4.0.0＆＃39;
在xml include按钮中如下：
<com.facebook.login.widget.LoginButton
android:id="@+id/btn_fb"
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_margin="1dp"
android:layout_weight="1"
android:gravity="center"
android:singleLine="true"
android:textColor="@color/white"
android:textSize="16sp"
fb:login_text="@string/facebook"
fb:logout_text="@string/facebook" />
在清单中添加以下权限和元数据和活动标记：
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<activity
android:name="com.facebook.FacebookActivity"
android:label="title_facebook_login" />
<meta-data
android:name="com.facebook.sdk.ApplicationId"
android:value="@string/app_id" />
在活动上添加片段并执行代码。希望它有助于让我知道如果需要问别的什么。