这是我现在的清单文件：
<activity
android:name="com.pyr.Activity_Login"
android:label="@string/manifest_label_login"
android:screenOrientation="portrait" >
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.pyr.Activity_LinkSocialNetwork"
android:label="@string/manifest_label_linkSocialNetwork"
android:screenOrientation="portrait"
android:launchMode="singleInstance">
<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:scheme="mgl" android:host="mamor" />
</intent-filter>
</activity>
这就是我的 logcat 卡住的地方：
08-02 19:30:50.429: I/MGL(29080): Retrieving request token from twitter servers
08-02 19:30:50.749: D/dalvikvm(29080): GC_CONCURRENT freed 249K, 4% free 9020K/9351K, paused 9ms+3ms
08-02 19:30:51.789: I/MGL(29080): Popping a browser with the authorize URL: https://api.twitter.com/oauth/authorize?oauth_token='valid token'
08-02 19:30:51.919: D/OpenGLRenderer(29080): Flushing caches (mode 1)
08-02 19:30:52.019: D/OpenGLRenderer(29080): Flushing caches (mode 0)
当我更改清单文件并写下 Activity_LinkSocialNetwork 是主要和启动器活动时：
<activity
android:name="com.pyr.Activity_Login"
android:label="@string/manifest_label_login"
android:screenOrientation="portrait">
</activity>
<activity
android:name="com.pyr.Activity_LinkSocialNetwork"
android:label="@string/manifest_label_linkSocialNetwork"
android:screenOrientation="portrait"
android:launchMode="singleInstance" >
<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:scheme="mgl" android:host="mamor" />
</intent-filter>
</activity>
Logcat 说：
08-02 19:30:05.359: I/MGL(28609): Retrieving request token from twitter servers
08-02 19:30:07.749: D/dalvikvm(28609): GC_CONCURRENT freed 291K, 4% free 8980K/9351K, paused 2ms+3ms
08-02 19:30:07.829: I/MGL(28609): Popping a browser with the authorize URL : https://api.twitter.com/oauth/authorize?oauth_token='valid token'
08-02 19:30:08.079: D/OpenGLRenderer(28609): Flushing caches (mode 1)
08-02 19:30:08.249: D/OpenGLRenderer(28609): Flushing caches (mode 0)
08-02 19:30:18.579: I/MGL(28609): Callback received : mgl://mamor?oauth_token='valid token'&oauth_verifier='valid token'
08-02 19:30:18.779: I/MGL(28609): Obtained oAuth Verifier: 'valid token'
08-02 19:30:20.419: D/dalvikvm(28609): GC_CONCURRENT freed 374K, 6% free 9050K/9543K, paused 3ms+2ms
08-02 19:30:20.429: I/MGL(28609): OAuth - Access Token Retrieved
一切正常。我不明白 twitter API 和主要活动之间的关系是什么。也许我做错了什么，所以我需要有人向我解释这一点。
编辑 --> 活动代码
活动_LinkSocialNetwork
public class Activity_LinkSocialNetwork extends Activity{
private static CommonsHttpOAuthConsumer httpOauthConsumer;
private static OAuthProvider httpOauthprovider;
private Button btnOAuth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_linksocialnetwork);
this.btnOAuth = (Button)findViewById(R.id.btnOAuth);
this.btnOAuth.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
autorizarApp();
Log.i("MGL", "depues de mandar");
}
});
}
/**
* Called when the OAuthRequestTokenTask finishes (user has authorized the
* request token). The callback URL will be intercepted here.
*/
@Override
public void onNewIntent(Intent intent) {
super.onNewIntent(intent);
final Uri uri = intent.getData();
SharedPreferences preferencias = this.getSharedPreferences("TwitterPrefs", MODE_PRIVATE);
if (uri != null && uri.toString().indexOf(TwitterData.CALLBACK_URL) != -1) {
Log.i("MGL", "Callback received : " + uri);
new RetrieveAccessTokenTask(this, getConsumer(), getProvider(),
preferencias).execute(uri);
}
}
protected void autorizarApp() {
try {
getProvider().setOAuth10a(true);
// retrieve the request token
new OAuthRequestTokenTask(this, getConsumer(), getProvider()).execute();
} catch (Exception e) {
}
}
/**
* @return the provider (initialize on the first call)
*/
public static OAuthProvider getProvider() {
if (httpOauthprovider == null) {
httpOauthprovider = new DefaultOAuthProvider(
TwitterData.REQUEST_URL, TwitterData.ACCESS_URL,
TwitterData.AUTHORIZE_URL);
httpOauthprovider.setOAuth10a(true);
}
return httpOauthprovider;
}
/**
* @param context
* the context
* @return the consumer (initialize on the first call)
*/
public static CommonsHttpOAuthConsumer getConsumer() {
if (httpOauthConsumer == null) {
httpOauthConsumer = new CommonsHttpOAuthConsumer(
TwitterData.CONSUMER_KEY, TwitterData.CONSUMER_SECRET);
}
return httpOauthConsumer;
}
}
活动_登录
public class Activity_Login extends Activity{
private EditText txtEmailLogin;
private EditText txtPasswordLogin;
private Button btnLogin;
private ProgressBar progressLogin;
private Data_Access oData = new Data_Access();
private Context context;
@Override
protected void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_login);
txtEmailLogin = (EditText) findViewById(R.id.txtEmailLogin);
txtPasswordLogin = (EditText) findViewById(R.id.txtPasswordLogin);
btnLogin = (Button) findViewById(R.id.btnLogin);
progressLogin = (ProgressBar) findViewById(R.id.progressLogin);
context = this.getApplicationContext();
btnLogin.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
new asyncLogin().execute();
}
});
}
//AYNSC TASK CLASSES
private class asyncLogin extends AsyncTask<Void, Void, Boolean>{
JSONArray jSONData;
@Override
protected void onPreExecute() {
// TODO Auto-generated method stub
progressLogin.setVisibility(View.VISIBLE);
}
@Override
protected Boolean doInBackground(Void... params) {
try
{
//Params
List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>();
nameValuePairs.add(new BasicNameValuePair("emailUser", txtEmailLogin.getText().toString()));
nameValuePairs.add(new BasicNameValuePair("passwordUser", txtPasswordLogin.getText().toString()));
jSONData = new JSONArray(oData.getData("getUserLogin", nameValuePairs));
return true;
}
catch (JSONException e)
{
e.printStackTrace();
return false;
}
}
@Override
protected void onPostExecute(Boolean result) {
if(result){
try
{
for (int i = 0; i < jSONData.length(); i++) {
JSONObject row = jSONData.getJSONObject(i);
if(i == 0){
if(row.getString("error").equals("1")){
Log.v("Error", row.getString("msg"));
break;
}
}else{
SharedPreferences prefs = getSharedPreferences("userPrefs", MODE_PRIVATE);
final Editor edit = prefs.edit();
edit.putString("idUser", row.getString("idUser"));
edit.commit();
Intent intent = new Intent(context, Activity_LinkSocialNetwork.class)
.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK
| Intent.FLAG_ACTIVITY_NO_HISTORY
| Intent.FLAG_FROM_BACKGROUND);
context.startActivity(intent);
}
}
progressLogin.setVisibility(View.VISIBLE);
}
catch (JSONException e)
{
e.printStackTrace();
}
}
}
}
}
编辑 2 --> OAUTH 令牌请求类
AsyncTask OAuthRequestTokenTask
public class OAuthRequestTokenTask extends AsyncTask<Void, Void, Void> {
private static final String TAG = "MGL";
private Context context;
private OAuthProvider provider;
private OAuthConsumer consumer;
/**
*
* We pass the OAuth consumer and provider.
*
* @param context
* Required to be able to start the intent to launch the
* browser.
* @param provider
* The OAuthProvider object
* @param consumer
* The OAuthConsumer object
*/
public OAuthRequestTokenTask(Context context, OAuthConsumer consumer,
OAuthProvider provider) {
this.context = context;
this.consumer = consumer;
this.provider = provider;
}
/**
*
* Retrieve the OAuth Request Token and present a browser to the user to
* authorize the token.
*
*/
@Override
protected Void doInBackground(Void... params) {
try {
Log.i(TAG, "Retrieving request token from twitter servers");
final String url = provider.retrieveRequestToken(consumer,
TwitterData.CALLBACK_URL);
Log.i(TAG, "Popping a browser with the authorize URL : " + url);
Intent intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url))
.setFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP
| Intent.FLAG_ACTIVITY_NO_HISTORY
| Intent.FLAG_FROM_BACKGROUND);
context.startActivity(intent);
} catch (Exception e) {
Log.e(TAG, "Error during OAUth retrieve request token", e);
}
return null;
}
}
AsyncTask RetrieveAccessTokenTask
public class RetrieveAccessTokenTask extends AsyncTask<Uri, Void, Boolean> {
private Context context;
private OAuthProvider provider;
private OAuthConsumer consumer;
private SharedPreferences prefs;
public RetrieveAccessTokenTask(Context context, OAuthConsumer consumer,
OAuthProvider provider, SharedPreferences prefs) {
this.context = context;
this.consumer = consumer;
this.provider = provider;
this.prefs = prefs;
}
/**
* Retrieve the oauth_verifier, and store the oauth and
* oauth_token_secret for future API calls.
*/
@Override
protected Boolean doInBackground(Uri... params) {
final Uri uri = params[0];
final String oauth_verifier = uri
.getQueryParameter(OAuth.OAUTH_VERIFIER);
try {
Log.i("MGL","Obtained oAuth Verifier: " + oauth_verifier);
provider.retrieveAccessToken(consumer, oauth_verifier);
final Editor edit = prefs.edit();
edit.putString(OAuth.OAUTH_TOKEN, consumer.getToken());
edit.putString(OAuth.OAUTH_TOKEN_SECRET, consumer.getTokenSecret());
edit.commit();
String token = prefs.getString(OAuth.OAUTH_TOKEN, "");
String secret = prefs.getString(OAuth.OAUTH_TOKEN_SECRET, "");
if( secret == null || token == null || secret.equals("") || token.equals("") ) return false;
consumer.setTokenWithSecret(token, secret);
context.startActivity(new Intent(context, Activity_LinkSocialNetwork.class));
Log.i("MGL", "OAuth - Access Token Retrieved");
} catch (Exception e) {
Log.e("MGL", "OAuth - Access Token Retrieval Error", e);
}
return true;
}
protected void onPostExecute(Boolean result) {
if(result){
Toast.makeText(this.context,
"Acceso a twitter conseguido!",
Toast.LENGTH_SHORT).show();
}else{
Toast.makeText(this.context,
"Acceso a twitter NO conseguido! :(",
Toast.LENGTH_SHORT).show();
}
}
}