import com.google.api.client.auth.oauth.OAuthGetTemporaryToken; //导入依赖的package包/类
public String getTempToken() throws IOException {

		// Step 1: Get a request token. This is a temporary token that is used for
		// having the user authorize an access token and to sign the request to obtain
		// said access token.
		OAuthGetTemporaryToken requestTempToken = new OAuthGetTemporaryToken(REQUEST_TOKEN_URL);
		requestTempToken.consumerKey = CONSUMER_KEY;
		requestTempToken.transport = http_transport;
		requestTempToken.signer = signer;

		OAuthCredentialsResponse requestTokenResponse = requestTempToken.execute();
		Log.d("Philip", "Request Temp Token:");
		Log.d("Philip", "    - oauth_token        = " + requestTokenResponse.token);
		Log.d("Philip", "    - oauth_token_secret = " + requestTokenResponse.tokenSecret);

		// updates signer's token shared secret
		signer.tokenSharedSecret = requestTokenResponse.tokenSecret;

		return requestTokenResponse.token;
	}
 

import com.google.api.client.auth.oauth.OAuthGetTemporaryToken; //导入依赖的package包/类
public void execute() {
  OAuthSigner signer = signerFactory.createSigner(null);

  tokenRequest = new OAuthGetTemporaryToken(config.getRequestTokenUrl());
  tokenRequest.consumerKey = config.getConsumerKey();
  tokenRequest.callback = config.getRedirectUri();

  ApacheHttpTransport.Builder transBuilder = new ApacheHttpTransport.Builder();
  if (config.getProxyHost() != null && "" != config.getProxyHost()) {
    String proxy_host = config.getProxyHost();
    long proxy_port = config.getProxyPort();
    boolean proxyHttps = config.getProxyHttpsEnabled();
    String proxy_schema = proxyHttps == true ? "https" : "http";
    System.out.println("proxy.host=" + proxy_host + ", proxy.port=" + proxy_port + ", proxy_schema=" + proxy_schema);
    HttpHost proxy = new HttpHost(proxy_host, (int) proxy_port, proxy_schema);
    transBuilder.setProxy(proxy);
    tokenRequest.transport = transBuilder.build();
  } else {
    tokenRequest.transport = new ApacheHttpTransport();
  }

  tokenRequest.signer = signer;

  OAuthCredentialsResponse temporaryTokenResponse = null;
  try {
    temporaryTokenResponse = tokenRequest.execute();

    tempToken = temporaryTokenResponse.token;
    tempTokenSecret = temporaryTokenResponse.tokenSecret;
  } catch (IOException e) {
    e.printStackTrace();
  }
}
 

import com.google.api.client.auth.oauth.OAuthGetTemporaryToken; //导入依赖的package包/类
@Override
protected Void doInBackground(Uri... params) {

    try {

        signer.clientSharedSecret = Constants.CONSUMER_SECRET;

        OAuthGetTemporaryToken temporaryToken = new OAuthGetTemporaryToken(Constants.REQUEST_URL);
        temporaryToken.transport = new ApacheHttpTransport();
        temporaryToken.signer = signer;
        temporaryToken.consumerKey = Constants.CONSUMER_KEY;
        temporaryToken.callback = Constants.OAUTH_CALLBACK_URL;

        OAuthCredentialsResponse tempCredentials = temporaryToken.execute();
        signer.tokenSharedSecret = tempCredentials.tokenSecret;

        OAuthAuthorizeTemporaryTokenUrl authorizeUrl = new OAuthAuthorizeTemporaryTokenUrl(Constants.AUTHORIZE_URL);
        authorizeUrl.temporaryToken = tempCredentials.token;
        authorizationUrl = authorizeUrl.build();

        handled = false;
    } catch (Exception ex) {
        ex.printStackTrace();
    }

    return null;
}
 

import com.google.api.client.auth.oauth.OAuthGetTemporaryToken; //导入依赖的package包/类
/**
 * Returns the response of a Request Token request as defined in <a
 * href="http://oauth.net/core/1.0a/#auth_step1">Obtaining an Unauthorized
 * Request Token</a>.
 * 
 * @param redirectUri the {@code oauth_callback} as defined in <a
 *            href="http://oauth.net/core/1.0a/#rfc.section.6.1.1">Consumer
 *            Obtains a Request Token</a>
 * @return
 * @throws IOException
 */
public OAuthCredentialsResponse new10aTemporaryTokenRequest(String redirectUri)
        throws IOException {
    OAuthGetTemporaryToken temporaryToken =
            new OAuthGetTemporaryToken(getTemporaryTokenRequestUrl());
    OAuthHmacSigner signer = new OAuthHmacSigner();
    ClientParametersAuthentication clientAuthentication = (ClientParametersAuthentication) getClientAuthentication();
    signer.clientSharedSecret = clientAuthentication.getClientSecret();
    temporaryToken.signer = signer;
    temporaryToken.consumerKey = clientAuthentication.getClientId();
    temporaryToken.callback = redirectUri;
    temporaryToken.transport = getTransport();
    return temporaryToken.execute();
}