loginButton.registerCallback无法解析方法
loginButton.registerCallback无法解析方法
提问于 2015-04-06 11:34:29
错误：(36，20)错误:找不到符号方法registerCallback(CallbackManager，>)
当我将这个registerCallback从我的主活动调用到facebook sdk 4.0's lib时。这是我的班
public class MainActivity extends Activity {
TextView tv;
Button loginButton;
CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Log.e("Oncreate", "Now on On create");
FacebookSdk.sdkInitialize(getApplicationContext());
callbackManager = CallbackManager.Factory.create();
tv =(TextView)findViewById(R.id.tv);
loginButton = (LoginButton)findViewById(R.id.login_button);
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
// App code
}
@Override
public void onCancel() {
// App code
}
@Override
public void onError(FacebookException exception) {
// App code
}
});
LoginManager.getInstance().registerCallback(callbackManager,
new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
// App code
}
@Override
public void onCancel() {
// App code
}
@Override
public void onError(FacebookException exception) {
// App code
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}
}
}Stack Overflow用户
回答已采纳
发布于 2015-04-12 22:14:39
您必须在FacebookSdk.sdkInitialize(this.getApplicationContext()) 之前调用 setContentView()。样本代码：
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(this.getApplicationContext());
setContentView(R.layout.activity_login);
callbackManager = CallbackManager.Factory.create();
loginButton = (LoginButton) findViewById(R.id.loginFaceBook_button);
//etc..documentation还提到要么使用loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() ，要么使用 LoginManager.getInstance().registerCallback (callbackManager, new FacebookCallback<LoginResult>()，而不是同时使用它们。下面是完整的示例代码：
private LoginButton loginButton;
private CallbackManager callbackManager;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(this.getApplicationContext());
setContentView(R.layout.activity_login);
callbackManager = CallbackManager.Factory.create();
loginButton = (LoginButton) findViewById(R.id.loginFaceBook_button);
List<String> permissionNeeds = Arrays.asList("user_photos", "email", "user_birthday", "public_profile");
loginButton.setReadPermissions(permissionNeeds);
loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>()
{
@Override
public void onSuccess(LoginResult loginResult)
{
System.out.println("onSuccess");
}
@Override
public void onCancel()
{
System.out.println("onCancel");
}
@Override
public void onError(FacebookException exception)
{
Log.v("LoginActivity", exception.getCause().toString());
}
});别忘了包括onActivityResult
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
super.onActivityResult(requestCode, resultCode, data);
callbackManager.onActivityResult(requestCode, resultCode, data);
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/29470467
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