我是 facebook api 和 android 的新手。但是以某种方式尝试管理登录到我的 facebook 帐户并检索我的帐户的一些信息,即 id、first_name、last_name。用于创建此应用程序的 sdk(android) 是 sdk(android) 8 级,但是当我使用 sdk(android) 级别 >8 应用程序崩溃并在 logcat(networkonmainthreadException) 上生成错误时。我做了一些搜索,发现这是 sdk 级别的线程问题,现在我要去 Asynctask,但对去哪里感到困惑输入 facebook 的登录代码,什么东西会返回到 mainactivity
我的 sdk 8 级代码是:-
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_test);
loginnfetch=(Button) findViewById(R.id.button1);
loginnfetch.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
facebook=new Facebook(APP_ID);
restorecredential(facebook);
if(!facebook.isSessionValid())
{
loginandfetch();
}
else
{
fetch();
}
}
});
}
protected void fetch()
{
try {
JSONObject jobj=new JSONObject(facebook.request("me"));
int id=jobj.getInt("id");
String fname=jobj.getString("first_name");
String lname=jobj.getString("last_name");
//String emailid=jobj.getString("email");
Toast.makeText(getApplicationContext(), ".."+id+".."+fname+".."+lname, 0).show();
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (JSONException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void loginandfetch()
{
facebook.authorize(this, PERMISSIONS, Facebook.FORCE_DIALOG_AUTH,new DialogListener() {
@Override
public void onFacebookError(FacebookError e)
{
Toast.makeText(getApplicationContext(), "ERROR WHILE LOGIN", 0).show();
}
@Override
public void onError(DialogError e) {
Toast.makeText(getApplicationContext(), "ERROR WHILE LOGIN", 0).show();
}
@Override
public void onComplete(Bundle values) {
saveCredentials(facebook);
fetch();
}
@Override
public void onCancel() {
Toast.makeText(getApplicationContext(), "ERROR WHILE LOGIN", 0).show();
}
});
}
protected boolean restorecredential(Facebook facebook2)
{
SharedPreferences sharedPreferences = getApplicationContext()
.getSharedPreferences(KEY, Context.MODE_PRIVATE);
facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
return facebook.isSessionValid();
}
public boolean saveCredentials(Facebook facebook) {
Editor editor = getApplicationContext().getSharedPreferences(KEY,
Context.MODE_PRIVATE).edit();
editor.putString(TOKEN, facebook.getAccessToken());
editor.putLong(EXPIRES, facebook.getAccessExpires());
return editor.commit();
}
如果可用,请分享一些代码或一些链接,谢谢,如果有什么不正确,请见谅