Implementierung von Google Play-Dienste in Android

Question

Ich gehe mit dem Tutorial here, und bekomme ich Fehler in der onConnectionFailed Klasse.

vollständigen Code

package com.alfalfa.thisthat; 

import android.app.Activity; 
import android.content.Intent; 
import android.content.IntentSender.SendIntentException; 
import android.os.Bundle; 
import android.view.Menu; 

import com.google.android.gms.common.ConnectionResult; 
import com.google.android.gms.common.api.GoogleApiClient; 
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks; 
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener; 
import com.google.android.gms.plus.Plus; 

public class LoginActivity extends Activity implements 
ConnectionCallbacks, OnConnectionFailedListener { 

    /* Request code used to invoke sign in user interactions. */ 
    private static final int RC_SIGN_IN = 0; 

    /* Client used to interact with Google APIs. */ 
    private GoogleApiClient mGoogleApiClient; 

    /* A flag indicating that a PendingIntent is in progress and prevents 
    * us from starting further intents. 
    */ 
    private boolean mIntentInProgress; 

    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     mGoogleApiClient = new GoogleApiClient.Builder(this) 
      .addConnectionCallbacks(this) 
      .addOnConnectionFailedListener(this) 
      .addApi(Plus.API, null) 
      .addScope(Plus.SCOPE_PLUS_LOGIN) 
      .build(); 
    } 

    protected void onStart() { 
     super.onStart(); 
     mGoogleApiClient.connect(); 
    } 

    protected void onStop() { 
     super.onStop(); 

     if (mGoogleApiClient.isConnected()) { 
      mGoogleApiClient.disconnect(); 
     } 
    } 

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

    @Override 
    public void onConnectionFailed(ConnectionResult result) { 
      if (!mIntentInProgress && result.hasResolution()) { 
      try { 
       mIntentInProgress = true; 
       startIntentSenderForResult(result.getIntentSender(), 
        RC_SIGN_IN, null, 0, 0, 0); 
      } catch (SendIntentException e) { 
       // The intent was canceled before it was sent. Return to the default 
       // state and attempt to connect to get an updated ConnectionResult. 
       mIntentInProgress = false; 
       mGoogleApiClient.connect(); 
      } 
      } 
     } 

    @Override 
    public void onConnected(Bundle connectionHint) { 
     // We've resolved any connection errors. mGoogleApiClient can be used to 
     // access Google APIs on behalf of the user. 
    } 

    @Override 
    public void onConnectionSuspended(int cause) { 
      mGoogleApiClient.connect(); 
    } 

    protected void onActivityResult(int requestCode, int responseCode, Intent intent) { 
      if (requestCode == RC_SIGN_IN) { 
       mIntentInProgress = false; 

       if (!mGoogleApiClient.isConnecting()) { 
        mGoogleApiClient.connect(); 
       } 
      } 
    } 
} 

EDIT: LogCat

02-13 19:12:31.763: E/AndroidRuntime(21257): FATAL EXCEPTION: main 
02-13 19:12:31.763: E/AndroidRuntime(21257): Process: com.alfalfa.thisthat, PID: 21257 
02-13 19:12:31.763: E/AndroidRuntime(21257): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.alfalfa.thisthat/com.alfalfa.thisthat.MainActivity}: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.alfalfa.thisthat/com.alfalfa.thisthat.LoginActivity}; have you declared this activity in your AndroidManifest.xml? 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread.access$800(ActivityThread.java:135) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.os.Handler.dispatchMessage(Handler.java:102) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.os.Looper.loop(Looper.java:136) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread.main(ActivityThread.java:5017) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at java.lang.reflect.Method.invokeNative(Native Method) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at java.lang.reflect.Method.invoke(Method.java:515) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at dalvik.system.NativeStart.main(Native Method) 
02-13 19:12:31.763: E/AndroidRuntime(21257): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.alfalfa.thisthat/com.alfalfa.thisthat.LoginActivity}; have you declared this activity in your AndroidManifest.xml? 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1628) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1424) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Activity.startActivityForResult(Activity.java:3424) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Activity.startActivityForResult(Activity.java:3385) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Activity.startActivity(Activity.java:3627) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Activity.startActivity(Activity.java:3595) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at com.alfalfa.thisthat.MainActivity.onCreate(MainActivity.java:16) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Activity.performCreate(Activity.java:5231) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
02-13 19:12:31.763: E/AndroidRuntime(21257): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
02-13 19:12:31.763: E/AndroidRuntime(21257): ... 11 more 

Answer 1

Ab heute und Google Play SDK Version 15 wurde dies mit

result.startResolutionForResult(this, // your activity 
           RC_SIGN_IN); 

ersetzt

gemäß der aktualisierten documentation.

Answer 2

Hoffe, dass es Sie

result.getResolution().getIntentSender()