Android开Facebook的电子邮件地址

Question

我做了Facebook登录，但我不知道如何获得电子邮件地址，并以另一种形式

所以显示出来，这是代码

private void nextActivity(Profile profile){ 
    if(profile != null){ 
     Intent main = new Intent(LogInTo.this, SetUsername.class); 
     main.putExtra("name", profile.getFirstName()); 
     main.putExtra("surname", profile.getLastName()); 
     //main.putExtra("email", profile.get()); 
     main.putExtra("imageUrl", 
     profile.getProfilePictureUri(200,200).toString()); 
     startActivity(main); 
     finish(); 
    } 
} 

这是我的回调

LoginButton loginButton = (LoginButton)findViewById(R.id.loginButton); 
    FacebookCallback<LoginResult> callback = new 
    FacebookCallback<LoginResult>() { 
     @Override 
     public void onSuccess(LoginResult loginResult) { 
      Profile profile = Profile.getCurrentProfile(); 
      nextActivity(profile); 
      Toast.makeText(getApplicationContext(), "Logging in...", Toast.LENGTH_SHORT).show(); 

     } 

     @Override 
     public void onCancel() { 
     } 

     @Override 
     public void onError(FacebookException e) { 
     } 
    }; 
    loginButton.setReadPermissions(Arrays.asList("user_friends")); 
    loginButton.registerCallback(callbackManager, callback); 

而且这是你从Facebook获得的电子邮件地址显示在另一种形式的代码

Bundle inbundle = getIntent().getExtras(); 
    String name = inbundle.get("name").toString(); 
    String surname = inbundle.get("surname").toString(); 

    FbFullname = (EditText) findViewById(R.id.fbfullname); 
    FbFullname.setText("" + name + " " + surname); 

    FbUsername = (EditText) findViewById(R.id.fbusername); 
    FbType = (EditText) findViewById(R.id.fbtype); 
    FbEmail = (EditText) findViewById(R.id.fbemail); 

Answer 1

loginButton.setReadPermissions("public_profile email");` 

在创建loginButton之后添加此行。

，并为获得详细

GraphRequest request = GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(), new GraphRequest.GraphJSONObjectCallback() { 
     @Override 
     public void onCompleted(JSONObject object, GraphResponse response) { 

      JSONObject json = response.getJSONObject(); 
      try { 
       if (json != null) { 

        JSONObject data = json.getJSONObject("picture").getJSONObject("data"); 
        String name=json.getString("name"); 
        String email= json.getString("email"); 
        String picUrl=data.getString("url"); 
       } 

      } catch (JSONException e) { 

      } 
     } 
    });