public class LinkedinActivity {
/****FILL THIS WITH YOUR INFORMATION*********/
//This is the public api key of our application
private static final String API_KEY = "apikey";
//This is the private api key of our application
private static final String SECRET_KEY = "secretcode";
//This is any string we want to use. This will be used for avoiding CSRF attacks. You can generate one here: http://strongpasswordgenerator.com/
private static final String STATE = "123456789";
//This is the url that LinkedIn Auth process will redirect to. We can put whatever we want that starts with http:// or https:// .
//We use a made up url that we will intercept when redirecting. Avoid Uppercases.
private static final String REDIRECT_URI = "https://example.com";
/*********************************************/
//These are constants used for build the urls
private static final String AUTHORIZATION_URL = "https://www.linkedin.com/oauth/v2/authorization";
private static final String ACCESS_TOKEN_URL = "https://www.linkedin.com/uas/oauth2/accessToken";
private static final String SECRET_KEY_PARAM = "client_secret";
private static final String RESPONSE_TYPE_PARAM = "response_type";
private static final String GRANT_TYPE_PARAM = "grant_type";
private static final String GRANT_TYPE = "authorization_code";
private static final String RESPONSE_TYPE_VALUE = "code";
private static final String CLIENT_ID_PARAM = "client_id";
private static final String STATE_PARAM = "state";
private static final String REDIRECT_URI_PARAM = "redirect_uri";
/*---------------------------------------*/
private static final String QUESTION_MARK = "?";
private static final String AMPERSAND = "&";
private static final String EQUALS = "=";
private WebView webView;
private ImageView close_icon;
private ProgressDialog pd;
//private OauthInterface oauthInterface;
String accessToken;
Context context;
Dialog dialog;
public LinkedinActivity(@NonNull Context context) {
this.context = context;
}
public void showLinkedin() {
dialog = new Dialog(context, R.style.AppTheme);
dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
// dialog.getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);
dialog.setContentView(R.layout.linkedin_activity);
dialog.setCancelable(false);
dialog.setCanceledOnTouchOutside(false);
pd = ProgressDialog.show(context, "", "Loading...", true);
dialog.setOnKeyListener(new DialogInterface.OnKeyListener() {
@Override
public boolean onKey(DialogInterface dialog, int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
LinkedinData linkedinData = (LinkedinData) context;
linkedinData.linkedCancel();
dialog.dismiss();
}
return true;
}
});
//oauthInterface = new OauthPresenter(this);
//get the webView from the layout
webView = (WebView) dialog.findViewById(R.id.activity_web_view);
close_icon = (ImageView) dialog.findViewById(R.id.close_icon);
close_icon.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
LinkedinData linkedinData = (LinkedinData) context;
linkedinData.linkedCancel();
dialog.dismiss();
}
});
//Request focus for the webview
webView.requestFocus(View.FOCUS_DOWN);
//Show a progress dialog to the user
//Set a custom web view client
webView.setWebViewClient(new WebViewClient() {
@Override
public void onPageFinished(WebView view, String url) {
//This method will be executed each time a page finished loading.
//The only we do is dismiss the progressDialog, in case we are showing any.
if (pd != null && pd.isShowing()) {
pd.dismiss();
}
}
@Override
public boolean shouldOverrideUrlLoading(WebView view, String authorizationUrl) {
//This method will be called when the Auth proccess redirect to our RedirectUri.
//We will check the url looking for our RedirectUri.
if (authorizationUrl.startsWith(REDIRECT_URI)) {
Log.i("Authorize", "");
Uri uri = Uri.parse(authorizationUrl);
//We take from the url the authorizationToken and the state token. We have to check that the state token returned by the Service is the same we sent.
//If not, that means the request may be a result of CSRF and must be rejected.
String stateToken = uri.getQueryParameter(STATE_PARAM);
if (stateToken == null || !stateToken.equals(STATE)) {
Log.e("Authorize", "State token doesn't match");
return true;
}
//If the user doesn't allow authorization to our application, the authorizationToken Will be null.
String authorizationToken = uri.getQueryParameter(RESPONSE_TYPE_VALUE);
if (authorizationToken == null) {
Log.i("Authorize", "The user doesn't allow authorization.");
return true;
}
Log.i("Authorize", "Auth token received: " + authorizationToken);
//Generate URL for requesting Access Token
String accessTokenUrl = getAccessTokenUrl(authorizationToken);
//We make the request in a AsyncTask
new PostRequestAsyncTask().execute(accessTokenUrl);
} else {
//Default behaviour
Log.i("Authorize", "Redirecting to: " + authorizationUrl);
webView.loadUrl(authorizationUrl);
}
return true;
}
});
//Get the authorization Url
String authUrl = getAuthorizationUrl();
Log.i("Authorize", "Loading Auth Url: " + authUrl);
//Load the authorization URL into the webView
webView.loadUrl(authUrl);
dialog.show();
}
private static String getAccessTokenUrl(String authorizationToken) {
return ACCESS_TOKEN_URL
+ QUESTION_MARK
+ GRANT_TYPE_PARAM + EQUALS + GRANT_TYPE
+ AMPERSAND
+ RESPONSE_TYPE_VALUE + EQUALS + authorizationToken
+ AMPERSAND
+ CLIENT_ID_PARAM + EQUALS + API_KEY
+ AMPERSAND
+ REDIRECT_URI_PARAM + EQUALS + REDIRECT_URI
+ AMPERSAND
+ SECRET_KEY_PARAM + EQUALS + SECRET_KEY;
}
/**
* Method that generates the url for get the authorization token from the Service
*
* @return Url
*/
private static String getAuthorizationUrl() {
return AUTHORIZATION_URL
+ QUESTION_MARK + RESPONSE_TYPE_PARAM + EQUALS + RESPONSE_TYPE_VALUE
+ AMPERSAND + CLIENT_ID_PARAM + EQUALS + API_KEY
+ AMPERSAND + REDIRECT_URI_PARAM + EQUALS + REDIRECT_URI
+ AMPERSAND + STATE_PARAM + EQUALS + STATE
+ AMPERSAND + "scope=r_emailaddress";
}
private class PostRequestAsyncTask extends AsyncTask<String, Void, String> {
@Override
protected void onPreExecute() {
pd = ProgressDialog.show(context, "", "loading", true);
}
@Override
protected String doInBackground(String... urls) {
if (urls.length > 0) {
String url = urls[0];
HttpClient httpClient = new DefaultHttpClient();
HttpPost httpost = new HttpPost(url);
try {
HttpResponse response = httpClient.execute(httpost);
if (response != null) {
//If status is OK 200
if (response.getStatusLine().getStatusCode() == 200) {
String result = EntityUtils.toString(response.getEntity());
//Convert the string result to a JSON Object
JSONObject resultJson = new JSONObject(result);
//Extract data from JSON Response
int expiresIn = resultJson.has("expires_in") ? resultJson.getInt("expires_in") : 0;
accessToken = resultJson.has("access_token") ? resultJson.getString("access_token") : null;
Log.e("Tokenm", "" + accessToken);
if (expiresIn > 0 && accessToken != null) {
Log.i("Authorize", "This is the access Token: " + accessToken + ". It will expires in " + expiresIn + " secs");
//Calculate date of expiration
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.SECOND, expiresIn);
long expireDate = calendar.getTimeInMillis();
////Store both expires in and access token in shared preferences
SharedPreferences preferences = context.getSharedPreferences("user_info", 0);
SharedPreferences.Editor editor = preferences.edit();
editor.putLong("expires", expireDate);
editor.putString("accessToken", accessToken);
//oauthInterface.oauthAuthentication(accessToken, "linkedin", new HackedPrefence(getApplicationContext()).getDevice_token());
editor.commit();
return accessToken;
}
}
}
} catch (IOException e) {
Log.e("Authorize", "Error Http response " + e.getLocalizedMessage());
} catch (ParseException e) {
Log.e("Authorize", "Error Parsing Http response " + e.getLocalizedMessage());
} catch (JSONException e) {
Log.e("Authorize", "Error Parsing Http response " + e.getLocalizedMessage());
}
}
return accessToken;
}
@Override
protected void onPostExecute(String status) {
if (pd != null && pd.isShowing()) {
pd.dismiss();
}
LinkedinData linkedinData = (LinkedinData) context;
linkedinData.LinkedinSuccess(status);
if (dialog.isShowing()) {
dialog.dismiss();
}
}
}
interface LinkedinData {
void linkedCancel();
void LinkedinSuccess(String Token);
}
}
new LinkedinActivity(this).showLinkedin();
[ 115] Вы можете вызвать вышеуказанный код одним нажатием кнопки. Пример button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
new LinkedinActivity(this).showLinkedin();
}
});
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<WebView
android:id="@+id/activity_web_view"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<ImageView
android:id="@+id/close_icon"
android:layout_width="20dp"
android:layout_height="20dp"
android:layout_marginRight="10dp"
android:layout_marginTop="22dp"
android:src="@drawable/ic_close_black"
android:layout_alignParentRight="true"/>
</RelativeLayout>
Синтаксис
(condition) ? /* value to return if condition is true */
: /* value to return if condition is false */ ;
не является сокращенным оператором if (?
называется условным оператором ), потому что вы не можете выполнить код таким же образом, как если бы вы это сделали:
if (condition) {
/* condition is true, do something like echo */
}
else {
/* condition is false, do something else */
}
В вашем примере вы выполняете оператор echo
, когда $ address
не пуст. Вы не можете сделать то же самое с условным оператором. Однако вы можете сделать echo
результатом условного оператора:
echo empty($address['street2']) ? "Street2 is empty!" : $address['street2'];
, и он отобразит «Улица пуста!» если он пуст, в противном случае будет отображаться адрес street2.
Я думаю, что Вы, вероятно, не должны использовать тернарный оператор в php. Рассмотрите следующий пример:
<?php
function f1($n) {
var_dump("first funct");
return $n == 1;
}
function f2($n) {
var_dump("second funct");
return $n == 2;
}
$foo = 1;
$a = (f1($foo)) ? "uno" : (f2($foo)) ? "dos" : "tres";
print($a);
, Как Вы думаете, что $a
будет содержать переменная? (подсказка: DOS) И это останется тем же, даже если $foo
переменная будет присвоена 2.
Для создания вещей лучше необходимо или отказаться к использованию этого оператора или окружить право, расстаются с фигурными скобками следующим образом:
$a = (f1($foo)) ? "uno" : ((f2($foo)) ? "dos" : "tres");
Тернарный оператор - это просто сокращение для блока if / else. В вашем рабочем коде нет условия else, поэтому он не подходит для этого.
Следующий пример будет работать:
echo empty($address['street2']) ? 'empty' : 'not empty';