谷歌加集成不起作用

Question

  

我正在从我的应用程序开发一个Google+集成。我引用了Google网站并按照该页面说明开发了一个登录应用程序。我的问题是，当我运行我的应用程序时，这对我来说并不适用于进度对话框也没有进展请任何人帮助我...   我推荐以下Google网站   enter link description here

    package com.example.bluetoothsocialsharing;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.widget.Toast;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
import com.google.android.gms.plus.PlusClient;

public class GooglePlusActivity extends Activity implements ConnectionCallbacks, OnConnectionFailedListener
{
    @Override
    protected void onDestroy() {
        super.onDestroy();
        mPlusClient.disconnect();
    }

    @Override
    protected void onStart() {
        super.onStart();
        mPlusClient.connect();
    }
        private static final String TAG = "ExampleActivity";
        private static final int REQUEST_CODE_RESOLVE_ERR = 9000;
        private ProgressDialog mConnectionProgressDialog;
        private PlusClient mPlusClient;
        private ConnectionResult mConnectionResult;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_google_plus);
        mPlusClient = new PlusClient.Builder(this, this, this)
        .setVisibleActivities("http://schemas.google.com/AddActivity", "http://schemas.google.com/BuyActivity")
        .build();
        // Progress bar to be displayed if the connection failure is not resolved.
        mConnectionProgressDialog = new ProgressDialog(this);
        mConnectionProgressDialog.setMessage("Signing in...");
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.google_plus, menu);
        return true;
    }


    @Override
    public void onConnectionFailed(ConnectionResult result) {
      if (mConnectionProgressDialog.isShowing()) {
        // The user clicked the sign-in button already. Start to resolve
        // connection errors. Wait until onConnected() to dismiss the
        // connection dialog.
        if (result.hasResolution()) {
          try {
                   result.startResolutionForResult(this, REQUEST_CODE_RESOLVE_ERR);
           } catch (SendIntentException e) {
                   mPlusClient.connect();
           }
        }
      }
      // Save the result and resolve the connection failure upon a user click.
      setmConnectionResult(result);
    }

    @Override
    protected void onActivityResult(int requestCode, int responseCode, Intent intent) {
        if (requestCode == REQUEST_CODE_RESOLVE_ERR && responseCode == RESULT_OK) {
            setmConnectionResult(null);
            mPlusClient.connect();
        }
    }

    @Override
    public void onConnected(Bundle connectionHint) {
        String accountName = mPlusClient.getAccountName();
        Toast.makeText(this, accountName + " is connected.", Toast.LENGTH_LONG).show();
    }
    @Override
    public void onDisconnected() {
        Log.d(TAG, "disconnected");
    }

    public ConnectionResult getmConnectionResult() {
        return mConnectionResult;
    }

    public void setmConnectionResult(ConnectionResult mConnectionResult) {
        this.mConnectionResult = mConnectionResult;
    }
}