title: cannot be cast to com.google.android.gms.common.api.GoogleApiClient$ConnectionCallback
body: <p>I`m trying to do like in this manual <a href="https://developer.android.com/training/location/retrieve-current.html#play-services" rel="nofollow">PushMe</a> but something wrong happening.</p>
  
  <p>FATAL EXCEPTION: main</p>
  
  <pre><code>java.lang.RuntimeException: Unable to start activity ComponentInfo{tk.i7otep9wka.testgeo/tk.i7otep9wka.testgeo.MainActivity}: java.lang.ClassCastException: tk.i7otep9wka.testgeo.MainActivity cannot be cast to com.google.android.gms.common.api.GoogleApiClient$ConnectionCallbacks
  </code></pre>
  
  <p>MainActivity</p>
  
  <pre><code>package tk.i7otep9wka.testgeo;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  
  
  import com.google.android.gms.common.ConnectionResult;
  import com.google.android.gms.common.GooglePlayServicesClient;
  import com.google.android.gms.common.api.GoogleApiClient;
  import com.google.android.gms.location.LocationServices;
  
  
  public class MainActivity extends ActionBarActivity implements
          GooglePlayServicesClient.ConnectionCallbacks,
          GooglePlayServicesClient.OnConnectionFailedListener {
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          buildGoogleApiClient();
      }
  
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          // Inflate the menu; this adds items to the action bar if it is present.
          getMenuInflater().inflate(R.menu.menu_main, menu);
          return true;
      }
  
      @Override
      public boolean onOptionsItemSelected(MenuItem item) {
          // Handle action bar item clicks here. The action bar will
          // automatically handle clicks on the Home/Up button, so long
          // as you specify a parent activity in AndroidManifest.xml.
          int id = item.getItemId();
  
          //noinspection SimplifiableIfStatement
          if (id == R.id.action_settings) {
              return true;
          }
  
          return super.onOptionsItemSelected(item);
      }
      protected synchronized void buildGoogleApiClient() {
              GoogleApiClient mGoogleApiClient = new GoogleApiClient.Builder(this)
                  .addConnectionCallbacks((GoogleApiClient.ConnectionCallbacks) this)
                  .addOnConnectionFailedListener((GoogleApiClient.OnConnectionFailedListener) this)
                  .addApi(LocationServices.API)
                  .build();
      }
  
      @Override
      public void onConnected(Bundle bundle) {
  
      }
  
      @Override
      public void onDisconnected() {
  
      }
  
      @Override
      public void onConnectionFailed(ConnectionResult connectionResult) {
  
      }
  }
  </code></pre>
  
  <p>Manifest:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
      package="tk.i7otep9wka.testgeo" &gt;
  
      &lt;uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme" &gt;
          &lt;meta-data android:name="com.google.android.gms.version"
              android:value="@integer/google_play_services_version" /&gt;
          &lt;activity
              android:name=".MainActivity"
              android:label="@string/app_name" &gt;
              &lt;intent-filter&gt;
                  &lt;action android:name="android.intent.action.MAIN" /&gt;
  
                  &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
              &lt;/intent-filter&gt;
          &lt;/activity&gt;
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>Full output</p>
  
  <pre><code>01-23 02:38:52.230  14704-14704/tk.i7otep9wka.testgeo E/AndroidRuntime﹕ FATAL EXCEPTION: main
      java.lang.RuntimeException: Unable to start activity ComponentInfo{tk.i7otep9wka.testgeo/tk.i7otep9wka.testgeo.MainActivity}: java.lang.ClassCastException: tk.i7otep9wka.testgeo.MainActivity cannot be cast to com.google.android.gms.common.api.GoogleApiClient$ConnectionCallbacks
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2342)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
              at android.app.ActivityThread.access$600(ActivityThread.java:148)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)
              at android.os.Handler.dispatchMessage(Handler.java:99)
              at android.os.Looper.loop(Looper.java:150)
              at android.app.ActivityThread.main(ActivityThread.java:5390)
              at java.lang.reflect.Method.invokeNative(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:525)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
              at dalvik.system.NativeStart.main(Native Method)
       Caused by: java.lang.ClassCastException: tk.i7otep9wka.testgeo.MainActivity cannot be cast to com.google.android.gms.common.api.GoogleApiClient$ConnectionCallbacks
              at tk.i7otep9wka.testgeo.MainActivity.buildGoogleApiClient(MainActivity.java:49)
              at tk.i7otep9wka.testgeo.MainActivity.onCreate(MainActivity.java:23)
              at android.app.Activity.performCreate(Activity.java:5303)
              at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
              at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2296)
              at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2417)
              at android.app.ActivityThread.access$600(ActivityThread.java:148)
              at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1355)
              at android.os.Handler.dispatchMessage(Handler.java:99)
              at android.os.Looper.loop(Looper.java:150)
              at android.app.ActivityThread.main(ActivityThread.java:5390)
              at java.lang.reflect.Method.invokeNative(Native Method)
              at java.lang.reflect.Method.invoke(Method.java:525)
              at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:737)
              at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553)
              at dalvik.system.NativeStart.main(Native Method)
  </code></pre>