[英]i got a error in facebook login in android
通過Facebook登錄時出現錯誤,我未對我的應用程序進行任何更改,它自動停止運行。
這是我的錯誤日志,請檢出。
Key error_code expected String but value was a java.lang.Integer. The default value <null> was returned.
01-13 11:10:55.006 17557-17557/fourever.textile W/Bundle: Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
at android.os.Bundle.getString(Bundle.java:1061)
at com.facebook.login.KatanaProxyLoginMethodHandler.handleResultCancel(KatanaProxyLoginMethodHandler.java:125)
at com.facebook.login.KatanaProxyLoginMethodHandler.onActivityResult(KatanaProxyLoginMethodHandler.java:77)
at com.facebook.login.LoginClient.onActivityResult(LoginClient.java:150)
at com.facebook.login.LoginFragment.onActivityResult(LoginFragment.java:162)
at android.support.v4.app.FragmentActivity.onActivityResult(FragmentActivity.java:156)
at android.app.Activity.dispatchActivityResult(Activity.java:5372)
at android.app.ActivityThread.deliverResults(ActivityThread.java:3201)
at android.app.ActivityThread.handleSendResult(ActivityThread.java:3248)
at android.app.ActivityThread.access$1200(ActivityThread.java:140)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1285)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(Native Method)
這是我的主要活動代碼。我正在使用簡單的按鈕進行Facebook登錄,而不是使用Facebook登錄按鈕。
MainActicity:-
private Button postStatusUpdateButton;
private CallbackManager callbackManager;
private AccessTokenTracker accessTokenTracker;
private ProfileTracker profileTracker;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(this.getApplicationContext());
callbackManager = CallbackManager.Factory.create();
accessTokenTracker = new AccessTokenTracker() {
@Override
protected void onCurrentAccessTokenChanged(AccessToken oldToken, AccessToken newToken) {
}
};
profileTracker = new ProfileTracker() {
@Override
protected void onCurrentProfileChanged(com.facebook.Profile oldProfile, com.facebook.Profile currentProfile) {
}
};
accessTokenTracker.startTracking();
profileTracker.startTracking();
LoginManager.getInstance().registerCallback(callbackManager,new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(final LoginResult loginResult) {
AccessToken accessToken = loginResult.getAccessToken();
com.facebook.Profile profile = com.facebook.Profile.getCurrentProfile();
if (profile == null) {
Log.e("Profile", "null");
}else{
// Toast.makeText(Login.this, profile.getProfilePictureUri(20,20).getLastPathSegment() , Toast.LENGTH_SHORT).show();
}
GraphRequest request = GraphRequest.newMeRequest(
loginResult.getAccessToken(),
new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(
JSONObject object,
GraphResponse response) {
Log.e("response: ", response + "");
try {
new SaveServiceSync().execute(object.getString("id").toString(), object.getString("name").toString(), object.getString("email").toString() , regid);
//Toast.makeText(Login.this, object.getString("name").toString() + " Id - " + object.getString("id").toString() + " Email : - " + object.getString("email").toString(), Toast.LENGTH_LONG).show();
} catch (Exception e) {
e.printStackTrace();
}
/*Intent intent = new Intent(LoginActivity.this, LogoutActivity.class);
startActivity(intent);
finish();*/
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,email,gender, birthday");
request.setParameters(parameters);
request.executeAsync();
}
@Override
public void onCancel() {
Toast.makeText(Login.this, "Login Cancel", Toast.LENGTH_LONG).show();
}
@Override
public void onError(FacebookException exception) {
Toast.makeText(Login.this, exception.getMessage(), Toast.LENGTH_LONG).show();
}
} );
setContentView(R.layout.activity_login);
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll().build();
StrictMode.setThreadPolicy(policy);
salert = new ShowAlertDialog();
username = (EditText) findViewById(R.id.username);
password = (EditText) findViewById(R.id.password);
btnlogin = (Button) findViewById(R.id.btnLogin);
// btnFacebookLogin = (Button) findViewById(R.id.btnFacebookLogin);
txtsignup = (TextView) findViewById(R.id.txtsignup);
Loginprefs = getSharedPreferences("logindetail", 0);
if (Loginprefs != null) {
userid = Loginprefs.getString("user_id", null);
if (userid == null) {
} else {
Intent intent = new Intent(getApplicationContext(), MainActivity.class);
startActivity(intent);
finish();
}
}
if (checkPlayServices()) {
getRegId();
}
postStatusUpdateButton = (Button) findViewById(R.id.btnFacebookLogin);
postStatusUpdateButton.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
if (AccessToken.getCurrentAccessToken() == null) {
postStatusUpdateButton.setText("Facebook");
LoginManager.getInstance().logInWithReadPermissions(Login.this, Arrays.asList("public_profile", "email", "user_friends", "user_photos"));
return; // already logged out
}else{
postStatusUpdateButton.setText("Logout");
LoginManager.getInstance().logOut();
}
btnlogin.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
try {
if (TextUtils.isEmpty(username.getText().toString().trim())) {
username.setError("Please enter username.");
}
if (TextUtils.isEmpty(password.getText().toString().trim())) {
password.setError("Please enter Password.");
}
if (!TextUtils.isEmpty(username.getText().toString().trim()) && !TextUtils.isEmpty(password.getText().toString().trim())) {
new ServiceSync().execute(username.getText().toString(), password.getText().toString(), regid);
}
} catch (Exception e) {
e.printStackTrace();
}
}
});
txtsignup.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Intent i = new Intent(Login.this, SignUp.class);
startActivity(i);
}
});
}
這是一個低版本的sdk錯誤,真正的原因將顯示在Web登錄頁面上 。
因此,只需在測試設備上卸載Facebook App,然后運行您的應用程序並調用登錄方法,輸入您的帳戶和密碼,您將看到錯誤消息。
終於我找到了解決方案,它可以解決我的問題。
我們應該使用發布密鑰而不是調試密鑰對apk進行簽名,或者我們應該為Android-Facebook應用添加調試密鑰哈希,這解決了我的問題。
不幸的是,在以下情況下問題仍然出現:
1)用戶安裝應用程序並使用Facebook帳戶注冊后。
2)然后,他將該應用從Facebook應用中刪除了。
3)最后他注銷,然后嘗試登錄此問題將再次出現。
我的解決方案是: 驗證訪問令牌時出錯:用戶尚未授權應用程序。 Facebook SDK 4
發生這種情況是因為您的app_id
不正確。
如果轉到developer.facebook上的儀表板,您將看到一個應用程序ID,應在strings.xml
像這樣添加該應用程序ID:
<string name="facebook_app_id">28759527865892</string>
<string name="fb_login_protocol_scheme">fb28759527865892</string>
在Manifest.xml
,應添加以下內容:
<meta-data android:name="com.facebook.sdk.ApplicationId"
android:value="@string/facebook_app_id"/>
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