我已经看过很多关于使用这个lib的教程,但是我明白了它。
首先,我如何验证twitter app?,
有什么方法可以对访问令牌进行硬编码,这样用户就不必做任何事情,他可以通过输入屏幕名称来直接搜索特定用户的推文吗?
如何在提及屏幕名称后收到推文?
我尝试用twitter4j lib阅读文档,但它帮助我....
我需要帮助我在两天内陷入困境,Plz帮助...
答案 0 :(得分:1)
有多种方法可以进行身份验证:
The standard 3-legged authorization:我将在这个答案中简要解释一下。
Pin-based authorization:适用于无法访问或嵌入网络浏览器的应用程序。
xAuth:作为应用程序授权,因此用户无需登录,而是使用应用程序进行授权。
首先,您需要创建一个应用程序here。 然后,您将收到您的消费者密钥和秘密:
然后,您可以使用此代码在启动时请求授权。
public class MainActivity extends Activity {
// TwitterProperties
private CommonsHttpOAuthConsumer httpOauthConsumer;
private OAuthProvider httpOauthprovider;
public final static String consumerKey = "YOUR CONSUMER KEY";
public final static String consumerSecret = "YOUR CONSUMER SECRET";
private final String CALLBACKURL = "SCHEME://HOST";
private Twitter twitter;
AccessToken a;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
StrictMode.enableDefaults();
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
setContentView(R.layout.activity_main);
doAuth();
}
private void doAuth() {
try {
httpOauthConsumer = new CommonsHttpOAuthConsumer(consumerKey,
consumerSecret);
httpOauthprovider = new DefaultOAuthProvider(
"https://twitter.com/oauth/request_token",
"https://twitter.com/oauth/access_token",
"https://twitter.com/oauth/authorize");
String authUrl = httpOauthprovider.retrieveRequestToken(
httpOauthConsumer, CALLBACKURL);
this.startActivity(new Intent(Intent.ACTION_VIEW, Uri
.parse(authUrl)));
} catch (Exception e) {
Toast.makeText(this, e.getMessage(), Toast.LENGTH_LONG).show();
}
}
@Override
protected void onNewIntent(Intent intent) {
super.onNewIntent(intent);
Uri uri = intent.getData();
if (uri != null && uri.toString().startsWith(CALLBACKURL)) {
String verifier = uri
.getQueryParameter(oauth.signpost.OAuth.OAUTH_VERIFIER);
// this will populate token and token_secret in consumer
try {
httpOauthprovider.retrieveAccessToken(httpOauthConsumer,
verifier);
} catch (OAuthMessageSignerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthNotAuthorizedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthExpectationFailedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (OAuthCommunicationException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
//Important part where it actually sets the authorization so you can use it
a = new AccessToken(httpOauthConsumer.getToken(),
httpOauthConsumer.getTokenSecret());
twitter = new TwitterFactory().getInstance();
twitter.setOAuthConsumer(consumerKey, consumerSecret);
twitter.setOAuthAccessToken(a);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}
}
要完成这项工作,您需要对Manifest进行一些调整。
<uses-permission android:name="android.permission.INTERNET" />
singleInstance
<activity
android:name="com.example.eredivisietwitter.MainActivity"
android:label="@string/app_name"
android:launchMode="singleInstance" >
<intent-filter>
<action android:name="android.intent.action.VIEW" >
</action>
<category android:name="android.intent.category.DEFAULT" >
</category>
<category android:name="android.intent.category.BROWSABLE" >
</category>
<data
android:host="HOST"
android:scheme="SCHEME" >
</data>
</intent-filter>
确保您的活动中拥有相同的主机和方案:
private final String CALLBACKURL = "SCHEME://HOST";
现在您已成功授权您的应用,您可以使用Twitter
对象来请求时间表等。
示例:
private void getTweets(String user) {
try {
List<Status> statuses;
statuses = twitter.getUserTimeline(user);
System.out.println("Showing @" + user + "'s user timeline.");
for (Status status : statuses) {
System.out.println("@" + status.getUser().getScreenName()
+ " - " + status.getText());
}
} catch (TwitterException te) {
te.printStackTrace();
System.out.println("Failed to get timeline: " + te.getMessage());
}
}
瞧!