私は1つのアプリケーションを開発しました.私のアプリケーションでは、Twitterのホームタイムラインデータを取得してリストビューを表示したいと考えています.そして、私はtwitter4jライブラリを使用しました.私はたくさん検索し、Twitterのドキュメントも読みました.ドキュメントでは、ベローを使用してユーザーのタイムラインデータを取得しています. webservice: " https://api.twitter.com/1/statuses/user_timeline.json?include_entities=true&include_rts=true&screen_name=twitterapi&count=2 ".正常に動作しており、データが表示されます.しかし、私の要件はホームタイムラインデータを取得することです. .そのドキュメントでは、次の Web サービスを提供しました: https://api.twitter.com/1.1/statuses/home_timeline.json.これは機能せず、ホーム タイムライン データは表示されません。前もって感謝します
これは私の oncreate コードです: これは私の輸入者です:
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONObject;
import com.dss.utils.UrltoValue;
import com.ibud.adapters.TweetList;
import twitter4j.Paging;
import twitter4j.Status;
import twitter4j.Twitter;
import twitter4j.TwitterException;
import twitter4j.TwitterFactory;
import twitter4j.User;
import twitter4j.auth.AccessToken;
import twitter4j.auth.RequestToken;
import twitter4j.conf.Configuration;
import twitter4j.conf.ConfigurationBuilder;
import twitter4j.json.DataObjectFactory;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.content.pm.ActivityInfo;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.os.StrictMode;
import android.preference.PreferenceManager;
import android.text.Html;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
そして、これは私のインスタンス変数です:
static String TWITTER_CONSUMER_KEY = "CjHtStxCA2toDQY6xnMwg"; // place your cosumer key here
static String TWITTER_CONSUMER_SECRET = "jjhpODDhtl3FM26ETn7yt3Q1Wc7VdxZXequDrmwFg"; // place your consumer secret here
// Preference Constants
static String PREFERENCE_NAME = "twitter_oauth";
static final String PREF_KEY_OAUTH_TOKEN = "oauth_token";
static final String PREF_KEY_OAUTH_SECRET = "oauth_token_secret";
static final String PREF_KEY_TWITTER_LOGIN = "isTwitterLogedIn";
static final String TWITTER_CALLBACK_URL = "oauth://t4jsample";
// Twitter oauth urls
static final String URL_TWITTER_AUTH = "auth_url";
static final String URL_TWITTER_OAUTH_VERIFIER = "oauth_verifier";
static final String URL_TWITTER_OAUTH_TOKEN = "oauth_token";
String username="";
private String strResponse;
private String[] strText;
LinearLayout llTotal;
ListView lvlist;
List<Status> statuses = new ArrayList<Status>();
// Login button
Button btnLoginTwitter,btnLoginFaceBook,btnBack;
// Update status button
Button btnUpdateStatus;
// Logout button
Button btnLogoutTwitter;
// EditText for update
EditText txtUpdate;
// lbl update
TextView lblUpdate;
TextView lblUserName;
// Progress dialog
ProgressDialog pDialog;
// Twitter
private static Twitter twitter;
private static RequestToken requestToken;
// Shared Preferences
private static SharedPreferences mSharedPreferences;
// Internet Connection detector
private ConnectionDetector cd;
AccessToken accessToken;
// Alert Dialog Manager
AlertDialogManager alert = new AlertDialogManager();
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
cd = new ConnectionDetector(getApplicationContext());
// Check if Internet present
if (!cd.isConnectingToInternet()) {
// Internet Connection is not present
alert.showAlertDialog(MainActivity.this,
"Internet Connection Error",
"Please connect to working Internet connection", false);
// stop executing code by return
return;
}
// Check if twitter keys are set
if (TWITTER_CONSUMER_KEY.trim().length() == 0
|| TWITTER_CONSUMER_SECRET.trim().length() == 0) {
// Internet Connection is not present
alert.showAlertDialog(MainActivity.this, "Twitter oAuth tokens",
"Please set your twitter oauth tokens first!", false);
// stop executing code by return
return;
}
// All UI elements
btnBack = (Button) findViewById(R.id.back);
btnLoginFaceBook = (Button) findViewById(R.id.btnLoginFaceBook);
btnLoginTwitter = (Button) findViewById(R.id.btnLoginTwitter);
btnUpdateStatus = (Button) findViewById(R.id.btnUpdateStatus);
btnLogoutTwitter = (Button) findViewById(R.id.btnLogoutTwitter);
txtUpdate = (EditText) findViewById(R.id.txtUpdateStatus);
lblUpdate = (TextView) findViewById(R.id.lblUpdate);
lblUserName = (TextView) findViewById(R.id.lblUserName);
// Shared Preferences
mSharedPreferences = getApplicationContext().getSharedPreferences(
"MyPref", 0);
btnLoginTwitter.setOnClickListener(new View.OnClickListener() {
public void onClick(View arg0) {
loginToTwitter();
}
});
btnBack.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Call login twitter function
btnLogoutTwitter.setVisibility(View.GONE);
btnUpdateStatus.setVisibility(View.GONE);
txtUpdate.setVisibility(View.GONE);
lblUpdate.setVisibility(View.GONE);
lblUserName.setText("");
lblUserName.setVisibility(View.GONE);
btnLoginFaceBook.setVisibility(View.VISIBLE);
btnLoginTwitter.setVisibility(View.VISIBLE);
}
});
btnLoginFaceBook.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Call login twitter function
Log.e("this is", "facebook onclick");
}
});
/**
* Button click event to Update Status, will call updateTwitterStatus()
* function
* */
btnUpdateStatus.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
// Call update status function
// Get the status from EditText
String status = txtUpdate.getText().toString();
// Check for blank text
if (status.trim().length() > 0) {
// update status
new updateTwitterStatus().execute(status);
} else {
// EditText is empty
Toast.makeText(getApplicationContext(),
"Please enter status message",
Toast.LENGTH_SHORT).show();
}
}
});
/**
* Button click event for logout from twitter
* */
btnLogoutTwitter.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View arg0) {
// Call logout twitter function
logoutFromTwitter();
}
});
/**
* This if conditions is tested once is redirected from twitter page.
* Parse the uri to get oAuth Verifier
* */
if (!isTwitterLoggedInAlready()) {
Uri uri = getIntent().getData();
if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
// oAuth verifier
String verifier = uri
.getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);
try {
// Get the access token
accessToken = twitter.getOAuthAccessToken(requestToken,
verifier);
// Shared Preferences
Editor e = mSharedPreferences.edit();
// After getting access token, access token secret
// store them in application preferences
e.putString(PREF_KEY_OAUTH_TOKEN, accessToken.getToken());
e.putString(PREF_KEY_OAUTH_SECRET,
accessToken.getTokenSecret());
// Store login status - true
e.putBoolean(PREF_KEY_TWITTER_LOGIN, true);
e.commit(); // save changes
Log.e("Twitter OAuth Token", "> " + accessToken.getToken());
// Hide login button
btnLoginTwitter.setVisibility(View.GONE);
btnLoginFaceBook.setVisibility(View.GONE);
// Show Update Twitter
lblUpdate.setVisibility(View.VISIBLE);
txtUpdate.setVisibility(View.VISIBLE);
btnUpdateStatus.setVisibility(View.VISIBLE);
btnLogoutTwitter.setVisibility(View.VISIBLE);
// Getting user details from twitter
// For now i am getting his name only
long userID = accessToken.getUserId();
User user = twitter.showUser(userID);
String username = user.getName();
Log.e("user id:", "" + userID);
Log.e("user name:", username);
try {
ConfigurationBuilder builder = new ConfigurationBuilder();
Log.e("tryyyyyyyyy:", "try");
// TWITTER ACCESS TOKEN
String twit_access_token = mSharedPreferences
.getString(PREF_KEY_OAUTH_TOKEN, null);
Log.e("access token:", twit_access_token);
// TWITTER ACCESS TOKEN SECRET
String twit_access_token_secret = mSharedPreferences
.getString(PREF_KEY_OAUTH_SECRET, null);
Log.e("access token sec:", twit_access_token_secret);
builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
builder.setOAuthAccessToken(twit_access_token);
builder.setOAuthAccessTokenSecret(twit_access_token_secret);
builder.setJSONStoreEnabled(true);
builder.setIncludeEntitiesEnabled(true);
// builder.setIncludeMyRetweetEnabled(true);
builder.setIncludeRTsEnabled(true);
AccessToken accessToken = new AccessToken(
twit_access_token, twit_access_token_secret);
Log.e("accesstoken:", "" + accessToken);
Twitter twitter = new TwitterFactory(builder.build())
.getInstance(accessToken);
Log.e("twitter:", "" + twitter);
Paging paging = new Paging(200); // MAX 200 IN ONE CALL.
// SET YOUR OWN
// NUMBER <= 200
statuses = twitter.getHomeTimeline(paging);
Log.e("statuses", "statuses");
try {
Log.e("tryyyyyyyyy in tryyyyyyyyyyyyyy:", "try");
String strInitialDataSet = DataObjectFactory
.getRawJSON(statuses);
JSONArray JATweets = new JSONArray(
strInitialDataSet);
Log.e("lengthhhhhhhhhhhh:", "" + JATweets.length());
for (int i = 0; i < JATweets.length(); i++) {
JSONObject JOTweets = JATweets.getJSONObject(i);
Log.e("TWEETS", JOTweets.toString());
}
} catch (Exception e1) {
// TODO: handle exception
e1.printStackTrace();
}
} catch (Exception e2) {
// TODO: handle exception
}
// Displaying in xml ui
lblUserName.setText(Html.fromHtml("<b>Welcome " + username
+ "</b>"));
} catch (Exception e) {
// Check log for login errors
Log.e("Twitter Login Error", "> " + e.getMessage());
}
/*
* Intent i = new Intent(this,ShareActivity.class);
* startActivity(i);
*/
}
}
}// oncreate.
private void loginToTwitter() {
// Check if already logged in
if (!isTwitterLoggedInAlready()) {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
Configuration configuration = builder.build();
TwitterFactory factory = new TwitterFactory(configuration);
twitter = factory.getInstance();
try {
Log.e("clickkkkkkkkkkk:", "authoriseeeeeee");
requestToken = twitter
.getOAuthRequestToken(TWITTER_CALLBACK_URL);
this.startActivity(new Intent(Intent.ACTION_VIEW, Uri
.parse(requestToken.getAuthenticationURL())));
} catch (TwitterException e) {
e.printStackTrace();
}
} else {
Log.e("elseeeeeeeeeeeee:", "elseeeeeeee");
// user already logged into twitter
Toast.makeText(getApplicationContext(),
"Already Logged into twitter", Toast.LENGTH_LONG).show();
btnLoginTwitter.setVisibility(View.GONE);
btnLoginFaceBook.setVisibility(View.GONE);
// Getting user details from twitter
// For now i am getting his name only
Uri uri = getIntent().getData();
if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
// oAuth verifier
String verifier = uri
.getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);
try {
// Get the access token
accessToken = twitter.getOAuthAccessToken(requestToken,
verifier);
// Shared Preferences
Editor e = mSharedPreferences.edit();
// After getting access token, access token secret
// store them in application preferences
e.putString(PREF_KEY_OAUTH_TOKEN, accessToken.getToken());
e.putString(PREF_KEY_OAUTH_SECRET,
accessToken.getTokenSecret());
// Store login status - true
e.putBoolean(PREF_KEY_TWITTER_LOGIN, true);
e.commit(); // save changes
Log.e("Twitter OAuth Token", "> " + accessToken.getToken());
long userID = accessToken.getUserId();
Log.e("user id:", "" + userID);
User user = twitter.showUser(userID);
String username = user.getName();
Log.e("user name:", username);
// Hide login button
btnLoginTwitter.setVisibility(View.GONE);
// Displaying in xml ui
lblUserName.setText(Html.fromHtml("<b>Welcome " + username
+ "</b>"));
} catch (Exception e) {
// Check log for login errors
Log.e("Twitter Login Error", "> " + e.getMessage());
}
/*
* Intent i = new Intent(this,ShareActivity.class);
* startActivity(i);
*/
}
}
}// login
そして、これが投稿ツイートです。
class updateTwitterStatus extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
@Override
protected void onPreExecute() {
super.onPreExecute();
pDialog = new ProgressDialog(MainActivity.this);
pDialog.setMessage("Updating to twitter...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
/**
* getting Places JSON
* */
protected String doInBackground(String... args) {
Log.d("Tweet Text", "> " + args[0]);
Log.e("Tweet Text", "> " + args[0]);
String status = args[0];
try {
ConfigurationBuilder builder = new ConfigurationBuilder();
builder.setOAuthConsumerKey(TWITTER_CONSUMER_KEY);
builder.setOAuthConsumerSecret(TWITTER_CONSUMER_SECRET);
// Access Token
String access_token = mSharedPreferences.getString(PREF_KEY_OAUTH_TOKEN, "");
// Access Token Secret
String access_token_secret = mSharedPreferences.getString(PREF_KEY_OAUTH_SECRET, "");
AccessToken accessToken = new AccessToken(access_token, access_token_secret);
Twitter twitter = new TwitterFactory(builder.build()).getInstance(accessToken);
// Update status
twitter4j.Status response = twitter.updateStatus(status);
Log.d("Status", "> " + response.getText());
Log.e("Status", "> " + response.getText());
} catch (TwitterException e) {
// Error in updating status
Log.d("Twitter Update Error", e.getMessage());
}
return null;
}
/**
* After completing background task Dismiss the progress dialog and show
* the data in UI Always use runOnUiThread(new Runnable()) to update UI
* from background thread, otherwise you will get error
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog after getting all products
pDialog.dismiss();
// updating UI from Background Thread
runOnUiThread(new Runnable() {
@Override
public void run() {
Toast.makeText(getApplicationContext(),"Status tweeted successfully", Toast.LENGTH_SHORT).show();
// Clearing EditText field
txtUpdate.setText("");
}
});
}
}//update.
private void logoutFromTwitter() {
// Clear the shared preferences
Editor e = mSharedPreferences.edit();
e.remove(PREF_KEY_OAUTH_TOKEN);
e.remove(PREF_KEY_OAUTH_SECRET);
e.remove(PREF_KEY_TWITTER_LOGIN);
e.commit();
// After this take the appropriate action
// I am showing the hiding/showing buttons again
// You might not needed this code
btnLogoutTwitter.setVisibility(View.GONE);
btnUpdateStatus.setVisibility(View.GONE);
txtUpdate.setVisibility(View.GONE);
lblUpdate.setVisibility(View.GONE);
lblUserName.setText("");
lblUserName.setVisibility(View.GONE);
btnLoginFaceBook.setVisibility(View.VISIBLE);
btnLoginTwitter.setVisibility(View.VISIBLE);
}
private boolean isTwitterLoggedInAlready() {
// return twitter login status from Shared Preferences
return mSharedPreferences.getBoolean(PREF_KEY_TWITTER_LOGIN, false);
}
protected void onResume() {
super.onResume();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event)
{
if ((keyCode == KeyEvent.KEYCODE_BACK))
{
//Log.e("this is","default back button..............");
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_HOME);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(intent);
}
return false;
}
これは私のコードです。間違いを犯した場所とこれが私のxmlコードです：
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
>
<RelativeLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/back"
android:layout_alignParentLeft="true"
android:text="back"
/>
</RelativeLayout>
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
>
<Button android:id="@+id/btnLoginFaceBook"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Login with facebook"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="30dip"/>
<!-- Twitter Login Button -->
<Button android:id="@+id/btnLoginTwitter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Login with Twitter"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="30dip"/>
<!-- user name label -->
<TextView android:id="@+id/lblUserName"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:padding="10dip"
android:layout_marginTop="30dip"/>
<!-- label update status -->
<TextView android:id="@+id/lblUpdate"
android:text="Update Status"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:visibility="gone"/>
<!-- Tweet EditText -->
<EditText android:id="@+id/txtUpdateStatus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="10dip"
android:visibility="gone"/>
<!-- Tweet Button -->
<Button android:id="@+id/btnUpdateStatus"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Tweet"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:visibility="gone"/>
<!-- Twitter Logout button -->
<Button android:id="@+id/btnLogoutTwitter"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Logout from Twitter"
android:layout_marginLeft="10dip"
android:layout_marginRight="10dip"
android:layout_marginTop="50dip"
android:visibility="gone"/>
</LinearLayout>
</LinearLayout>