Twitter V1.1在Android中的應用
阿新 • • 發佈：2019-01-26
前面申請CONSUMER_KEY和CONSUMER_SECRET的過程就忽略了，這裡直接上程式碼。
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.twitter_demo"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.INTERNET" />
<!-- Network State Permissions -->
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<application
android:allowBackup="true"
android:icon="@drawable/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name="com.example.twitter_demo.MainActivity"
android:label="@string/app_name" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:host="t4jsample" android:scheme="oauth" />
</intent-filter>
</activity>
</application>
</manifest>activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".TwitterHomeActivity" >
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:layout_marginLeft="106dp"
android:layout_marginTop="21dp"
android:text="@string/hello_world"
android:textColor="#A52A2A"
android:textStyle="bold"
android:typeface="serif" />
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="@+id/textView1"
android:layout_below="@+id/textView1"
android:layout_marginTop="80dp"
android:text="Login to twitter" />
<EditText
android:id="@+id/editText1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:visibility="gone"
android:ems="10" />
<Button
android:id="@+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/editText1"
android:layout_centerHorizontal="true"
android:layout_marginTop="34dp"
android:visibility="gone"
android:text="Tweets" />
</RelativeLayout>AlertDialogManager.java
package com.example.twitter_demo;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
public class AlertDialogManager {
public void showAlertDialog(Context context, String title, String message,
Boolean status) {
AlertDialog alertDialog = new AlertDialog.Builder(context).create();
// Setting Dialog Title
alertDialog.setTitle(title);
// Setting Dialog Message
alertDialog.setMessage(message);
if (status != null)
// Setting alert dialog icon
// alertDialog.setIcon((status) ? R.drawable.success :
// R.drawable.fail);
// Setting OK Button
alertDialog.setButton("OK", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
});
// Showing Alert Message
alertDialog.show();
}
}ConnectionDetector.java
package com.example.twitter_demo;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.util.Log;
public class ConnectionDetector {
private Context _context;
public ConnectionDetector(Context context) {
this._context = context;
}
public boolean isConnectingToInternet() {
ConnectivityManager connectivity = (ConnectivityManager) _context
.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity != null) {
NetworkInfo[] info = connectivity.getAllNetworkInfo();
if (info != null)
for (int i = 0; i < info.length; i++)
if (info[i].getState() == NetworkInfo.State.CONNECTED) {
Log.d("Network",
"NETWORKnAME: " + info[i].getTypeName());
return true;
}
}
return false;
}
}
MainActivity.java
package com.example.twitter_demo;
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 android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
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.text.Html;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
public class MainActivity extends Activity {
static String TWITTER_CONSUMER_KEY = "gWuDKEHVD4Ito3TKNaexmg";
static String TWITTER_CONSUMER_SECRET = "0DYm4kSSOnZ0iYmUojJPZOs0KppYivN9jiVnkba574";
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";
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";
ProgressDialog pDialog;
private static Twitter twitter;
private static RequestToken requestToken;
private static SharedPreferences mSharedPreferences;
private ConnectionDetector cd;
AlertDialogManager alert = new AlertDialogManager();
EditText sts;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
cd = new ConnectionDetector(getApplicationContext());
if (!cd.isConnectingToInternet()) {
alert.showAlertDialog(MainActivity.this,
"Internet Connection Error",
"Please connect to working Internet connection", false);
return;
}
// Check if twitter keys are set
if (TWITTER_CONSUMER_KEY.trim().length() == 0
|| TWITTER_CONSUMER_SECRET.trim().length() == 0) {
alert.showAlertDialog(MainActivity.this, "Twitter oAuth tokens",
"Please set your twitter oauth tokens first!", false);
return;
}
mSharedPreferences = getApplicationContext().getSharedPreferences(
"MyPref", 0);
findViewById(R.id.button1).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
loginToTwitter();
}
});
findViewById(R.id.button2).setOnClickListener(
new View.OnClickListener() {
@Override
public void onClick(View v) {
sts = (EditText) findViewById(R.id.editText1);
String status = sts.getText().toString();
if (status.trim().length() > 0) {
new updateTwitterStatus().execute(status);
} else {
Toast.makeText(getApplicationContext(),
"Please enter status message",
Toast.LENGTH_SHORT).show();
}
}
});
if (!isTwitterLoggedInAlready()) {
Uri uri = getIntent().getData();
if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
if (pDialog == null) {
pDialog = new ProgressDialog(MainActivity.this);
}
pDialog.setMessage("Access Tiwtter...");
pDialog.show();
new AccessTwitter().execute(uri);
}
} else {
findViewById(R.id.button1).setVisibility(View.GONE);
findViewById(R.id.editText1).setVisibility(View.VISIBLE);
findViewById(R.id.button2).setVisibility(View.VISIBLE);
}
}
private ProgressDialog getProgressDialog() {
ProgressDialog progressDialog = new ProgressDialog(MainActivity.this);
progressDialog.setTitle("login...");
progressDialog.setMessage("please wait...");
return progressDialog;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
return true;
}
private void loginToTwitter() {
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();
new RequestTwitter().execute();
} else {
Toast.makeText(getApplicationContext(),
"Already Logged into twitter", Toast.LENGTH_LONG).show();
}
}
private class RequestTwitter extends AsyncTask<String, String, String> {
@Override
protected String doInBackground(String... params) {
try {
requestToken = twitter
.getOAuthRequestToken(TWITTER_CALLBACK_URL);
} catch (TwitterException e) {
e.printStackTrace();
}
return null;
}
@Override
protected void onPostExecute(String result) {
if (requestToken != null) {
Intent intent = new Intent(Intent.ACTION_VIEW,
Uri.parse(requestToken.getAuthenticationURL()));
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
MainActivity.this.startActivity(intent);
} else {
Log.e("TAG", "requstToken error");
}
super.onPostExecute(result);
}
}
private class AccessTwitter extends AsyncTask<Uri, String, Boolean> {
@Override
protected Boolean doInBackground(Uri... params) {
Uri uri = params[0];
if (uri != null && uri.toString().startsWith(TWITTER_CALLBACK_URL)) {
String verifier = uri
.getQueryParameter(URL_TWITTER_OAUTH_VERIFIER);
try {
AccessToken accessToken = twitter.getOAuthAccessToken(
requestToken, verifier);
// Shared Preferences
Editor e = mSharedPreferences.edit();
e.putString(PREF_KEY_OAUTH_TOKEN, accessToken.getToken());
e.putString(PREF_KEY_OAUTH_SECRET,
accessToken.getTokenSecret());
e.putBoolean(PREF_KEY_TWITTER_LOGIN, true);
e.commit();
Log.e("Twitter OAuth Token", "> " + accessToken.getToken());
long userID = accessToken.getUserId();
User user = twitter.showUser(userID);
String username = user.getName();
Log.e("UserID: ", "userID: " + userID + "" + username);
Log.v("Welcome:",
"Thanks:"
+ Html.fromHtml("<b>Welcome " + username
+ "</b>"));
return true;
} catch (Exception e) {
Log.e("Twitter Login Error", "> " + e.getMessage(), e);
}
}
return false;
}
@Override
protected void onPostExecute(Boolean result) {
pDialog.dismiss();
if (result) {
findViewById(R.id.button1).setVisibility(View.GONE);
findViewById(R.id.editText1).setVisibility(View.VISIBLE);
findViewById(R.id.button2).setVisibility(View.VISIBLE);
} else {
Log.e("TAG", "accessToken error");
}
super.onPostExecute(result);
}
}
private boolean isTwitterLoggedInAlready() {
return mSharedPreferences.getBoolean(PREF_KEY_TWITTER_LOGIN, false);
}
class updateTwitterStatus extends AsyncTask<String, String, String> {
@Override
protected void onPreExecute() {
super.onPreExecute();
if (pDialog == null) {
pDialog = new ProgressDialog(MainActivity.this);
}
pDialog.setMessage("Updating to twitter...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(false);
pDialog.show();
}
protected String doInBackground(String... args) {
Log.d("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());
} catch (TwitterException e) {
// Error in updating status
Log.d("Twitter Update Error", e.getMessage());
}
return null;
}
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
sts.setText("");
}
});
}
}
}