我的应用程序工作正常，直到我添加Facebook登录。我做的一切都和我在其他应用程序上做的一样，但仍然出错。我添加了facebook sdk并初始化了它。我在facebook网站上注册了我的应用程序。仍然不了解这个问题。
01-02 23:05:02.192: E/AndroidRuntime(30078): Process: com.sam.sports, PID: 30078
01-02 23:05:02.192: E/AndroidRuntime(30078): java.lang.NoClassDefFoundError: com.facebook.FacebookActivity
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.facebook.internal.Validate.hasFacebookActivity(Validate.java:176)
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:198)
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.facebook.FacebookSdk.sdkInitialize(FacebookSdk.java:174)
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.sam.sports.LoginActivity.onCreate(LoginActivity.java:59)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.Activity.performCreate(Activity.java:5280)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1088)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2322)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2410)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.ActivityThread.access$800(ActivityThread.java:155)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1331)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.os.Handler.dispatchMessage(Handler.java:110)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.os.Looper.loop(Looper.java:193)
01-02 23:05:02.192: E/AndroidRuntime(30078): at android.app.ActivityThread.main(ActivityThread.java:5388)
01-02 23:05:02.192: E/AndroidRuntime(30078): at java.lang.reflect.Method.invokeNative(Native Method)
01-02 23:05:02.192: E/AndroidRuntime(30078): at java.lang.reflect.Method.invoke(Method.java:515)
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
01-02 23:05:02.192: E/AndroidRuntime(30078): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:655)
01-02 23:05:02.192: E/AndroidRuntime(30078): at dalvik.system.NativeStart.main(Native Method)<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.sam.sports"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="18"
android:targetSdkVersion="23" />
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.CAMERA" />
<uses-feature android:name="android.hardware.camera" />
<uses-feature android:name="android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<application
android:name="com.sam.sports.app.AppController"
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/MyTheme" >
<meta-data android:name="com.facebook.sdk.ApplicationId" android:value="@string/facebook_app_id"/>
<activity android:name="com.facebook.FacebookActivity"
android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
android:theme="@android:style/Theme.Translucent.NoTitleBar"
android:label="@string/app_name" />
<provider android:authorities="com.facebook.app.FacebookContentProvider975617842510005"
android:name="com.facebook.FacebookContentProvider"
android:exported="true"/>
<activity
android:name=".LoginActivity"
android:label="@string/app_name"
android:launchMode="singleTop"
android:windowSoftInputMode="adjustPan" >
<intent-filter >
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name=".RegisterActivity"
android:label="@string/app_name"
android:launchMode="singleTop"
android:windowSoftInputMode="adjustPan" />
<activity
android:name=".MainActivity"
android:label="@string/app_name"
android:launchMode="singleTop" />
<activity
android:name=".CreateLog"
android:label="@string/app_name"
android:launchMode="singleTop" />
</application>
</manifest>public class LoginActivity extends Activity {
private static final String TAG = RegisterActivity.class.getSimpleName();
private Button btnLogin;
private Button btnLinkToRegister;
private EditText inputEmail;
private EditText inputPassword;
private ProgressDialog pDialog;
private SessionManager session;
private SQLiteHandler db;
public static final String PREFS_NAME = "MyApp_Settings";
CallbackManager callbackManager;
LoginButton login;
String name;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
setContentView(R.layout.activity_login);
inputEmail = (EditText) findViewById(R.id.email_login);
inputPassword = (EditText) findViewById(R.id.pass_login);
btnLogin = (Button) findViewById(R.id.login);
btnLinkToRegister = (Button) findViewById(R.id.btnLinkToRegisterScreen);
///////////////////////////////////////////////// Facebook Login Starts ///////////////////////////////////////////////////////////////////////
callbackManager = CallbackManager.Factory.create();
login = (LoginButton)findViewById(R.id.login_button);
login.setReadPermissions("public_profile email");
if(AccessToken.getCurrentAccessToken() != null){
RequestData();
}
login.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
if(AccessToken.getCurrentAccessToken() != null) {
}
}
});
login.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
if(AccessToken.getCurrentAccessToken() != null){
RequestData();
}
}
@Override
public void onCancel() {
}
@Override
public void onError(FacebookException exception) {
}
});
/////////////////////////////////////////////////////////Facebook Login Ends/////////////////////////////////////////////////////////////////
// Progress dialog
pDialog = new ProgressDialog(this);
pDialog.setCancelable(false);
// SQLite database handler
db = new SQLiteHandler(getApplicationContext());
// Session manager
session = new SessionManager(getApplicationContext());
// Check if user is already logged in or not
if (session.isLoggedIn()) {
// User is already logged in. Take him to main activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
}
// Login button Click Event
btnLogin.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
String email = inputEmail.getText().toString().trim();
String password = inputPassword.getText().toString().trim();
// Check for empty data in the form
if (!email.isEmpty() && !password.isEmpty()) {
// login user
checkLogin(email, password);
} else {
// Prompt user to enter credentials
Toast.makeText(getApplicationContext(), "Please enter the credentials!", Toast.LENGTH_LONG).show();
}
}
});
// Link to Register Screen
btnLinkToRegister.setOnClickListener(new View.OnClickListener() {
public void onClick(View view) {
Intent i = new Intent(getApplicationContext(), RegisterActivity.class);
startActivity(i);
finish();
}
});
}
/**
* function to verify login details in mysql db
* */
private void checkLogin(final String email, final String password) {
// Tag used to cancel the request
String tag_string_req = "req_login";
pDialog.setMessage("Logging in ...");
showDialog();
StringRequest strReq = new StringRequest(Method.POST,
AppConfig.URL_LOGIN, new Response.Listener<String>() {
@Override
public void onResponse(String response) {
Log.d(TAG, "Login Response: " + response.toString());
hideDialog();
try {
JSONObject jObj = new JSONObject(response);
boolean error = jObj.getBoolean("error");
// Check for error node in json
if (!error) {
// user successfully logged in
// Create login session
session.setLogin(true);
// Now store the user in SQLite
String uid = jObj.getString("uid");
JSONObject user = jObj.getJSONObject("user");
String name = user.getString("name");
String email = user.getString("email");
String created_at = user
.getString("created_at");
// Inserting row in users table
db.addUser(name, email, uid, created_at);
//add "option" to SharedPreference
SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
Editor editor = settings.edit();
editor.putString("option", "0");
editor.commit();
// Launch main activity
Intent intent = new Intent(LoginActivity.this, MainActivity.class);
startActivity(intent);
finish();
} else {
// Error in login. Get the error message
String errorMsg = jObj.getString("error_msg");
Toast.makeText(getApplicationContext(), errorMsg, Toast.LENGTH_LONG).show();
}
} catch (JSONException e) {
// JSON error
e.printStackTrace();
Toast.makeText(getApplicationContext(), "Json error: " + e.getMessage(), Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e(TAG, "Login Error: " + error.getMessage());
Toast.makeText(getApplicationContext(), error.getMessage(), Toast.LENGTH_LONG).show();
hideDialog();
}
}) {
@Override
protected Map<String, String> getParams() {
// Posting parameters to login url
Map<String, String> params = new HashMap<String, String>();
params.put("email", email);
params.put("password", password);
return params;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(strReq, tag_string_req);
}
private void showDialog() {
if (!pDialog.isShowing())
pDialog.show();
}
private void hideDialog() {
if (pDialog.isShowing())
pDialog.dismiss();
}
//////////////////////////////////////////////////////////Facebook Login Starts///////////////////////////////////////////////////////////////////
public void RequestData(){
GraphRequest request = GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(), new GraphRequest.GraphJSONObjectCallback() {
@Override
public void onCompleted(JSONObject object, GraphResponse response) {
// TODO Auto-generated method stub
JSONObject json = response.getJSONObject();
try {
if(json != null){
//String text = "<b>Name :</b> "+json.getString("name")+"<br><br><b>Email :</b> "+json.getString("email")+"<br><br><b>Profile link :</b> "+json.getString("link");
name = json.getString("name");
SharedPreferences settings = getSharedPreferences(PREFS_NAME, MODE_PRIVATE);
Editor editor = settings.edit();
editor.putString("option", "1");
editor.putString("name", name);
editor.commit();
Intent main = new Intent(LoginActivity.this, MainActivity.class);
startActivity(main);
finish();
}
} catch (JSONException e) {
e.printStackTrace();
}
}
});
Bundle parameters = new Bundle();
parameters.putString("fields", "id,name,link,email,picture");
request.setParameters(parameters);
request.executeAsync();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
//////////////////////////////////////////////////////////////Facebook Login Ends///////////////////////////////////////////////////////////////
}
答案 0 :(得分：1)
Facebook权限应该分开：
login.setReadPermissions("public_profile","email");
和
没有必要：
login.setOnClickListener(new View.OnClickListener()
因为点击login按钮时会调用：login.registerCallback(callbackManager, new FacebookCallback<LoginResult>()方法调用com.facebook.FacebookActivity