问题
When i call method mGoogleApiClient.connect() the app crashes.
the following code is copied from www.developers.google.com
i want to implement Google Sign In functionality, but unable to do so.
i also have edited the build.gradle file. in my Last app i could not add Leaderboards just because of this issue, and now again my next app needs Leaderboards, but this time i can't leave it.
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.drive.Drive;
import com.google.android.gms.games.Games;
import com.google.example.games.basegameutils.BaseGameUtils;
public class MenuActivity extends Activity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, View.OnClickListener {
boolean mExplicitSignOut = false;
boolean mInSignInFlow = false; // set to true when you're in the middle of the
// sign in flow, to know you should not attempt
// to connect in onStart()
GoogleApiClient mGoogleApiClient; // initialized in onCreate
private static int RC_SIGN_IN = 9001;
private boolean mResolvingConnectionFailure = false;
private boolean mAutoStartSignInFlow = true;
private boolean mSignInClicked = false;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_menu);
findViewById(R.id.sign_in_button).setOnClickListener(this);
findViewById(R.id.sign_out_button).setOnClickListener(this);
// Create the Google Api Client with access to the Play Game and Drive services.
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(Games.API).addScope(Games.SCOPE_GAMES)
.addApi(Drive.API).addScope(Drive.SCOPE_APPFOLDER) // Drive API
.build();
}
@Override
protected void onStart() {
super.onStart();
if (!mInSignInFlow && !mExplicitSignOut) {
// auto sign in
//mGoogleApiClient.connect();
}
//checkButtonVisibility();
}
private void checkButtonVisibility() {
if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
findViewById(R.id.sign_out_button).setVisibility(View.VISIBLE);
// signed in. Show the "sign out" button and explanation.
// ...
} else {
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
// not signed in. Show the "sign in" button and explanation.
// ...
}
}
@Override
protected void onStop() {
super.onStop();
mGoogleApiClient.disconnect();
}
@Override
public void onConnected(Bundle connectionHint) {
// show sign-out button, hide the sign-in button
findViewById(R.id.sign_in_button).setVisibility(View.GONE);
findViewById(R.id.sign_out_button).setVisibility(View.VISIBLE);
// (your code here: update UI, enable functionality that depends on sign in, etc)
}
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
if (mResolvingConnectionFailure) {
// Already resolving
return;
}
// If the sign in button was clicked or if auto sign-in is enabled,
// launch the sign-in flow
if (mSignInClicked || mAutoStartSignInFlow) {
mAutoStartSignInFlow = false;
mSignInClicked = false;
mResolvingConnectionFailure = true;
// Attempt to resolve the connection failure using BaseGameUtils.
// The R.string.signin_other_error value should reference a generic
// error string in your strings.xml file, such as "There was
// an issue with sign in, please try again later."
if (!BaseGameUtils.resolveConnectionFailure(this, mGoogleApiClient, connectionResult,
RC_SIGN_IN, "signin_other_error")) //R.string.signin_other_error
{
mResolvingConnectionFailure = false;
}
}
// Put code here to display the sign-in button
}
@Override
public void onConnectionSuspended(int i) {
// Attempt to reconnect
mGoogleApiClient.connect();
}
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
if (requestCode == RC_SIGN_IN) {
mSignInClicked = false;
mResolvingConnectionFailure = false;
if (resultCode == RESULT_OK) {
mGoogleApiClient.connect();
} else {
// Bring up an error dialog to alert the user that sign-in
// failed. The R.string.signin_failure should reference an error
// string in your strings.xml file that tells the user they
// could not be signed in, such as "Unable to sign in."
BaseGameUtils.showActivityResultError(this, requestCode, resultCode, RC_SIGN_IN); //R.string.signin_failure
}
}
//checkButtonVisibility();
}
// Call when the sign-in button is clicked
private void signInClicked() {
mSignInClicked = true;
mGoogleApiClient.connect();
}
// Call when the sign-out button is clicked
private void signOutclicked() {
mSignInClicked = false;
Games.signOut(mGoogleApiClient);
}
@Override
public void onClick(View view) {
if (view.getId() == R.id.sign_out_button) {
// user explicitly signed out, so turn off auto sign in
mExplicitSignOut = true;
if (mGoogleApiClient != null && mGoogleApiClient.isConnected()) {
Games.signOut(mGoogleApiClient);
mGoogleApiClient.disconnect();
}
}
if (view.getId() == R.id.sign_in_button) {
// start the asynchronous sign in flow
mSignInClicked = true;
mGoogleApiClient.connect();
}
else if (view.getId() == R.id.sign_out_button) {
// sign out.
mSignInClicked = false;
Games.signOut(mGoogleApiClient);
// show sign-in button, hide the sign-out button
findViewById(R.id.sign_in_button).setVisibility(View.VISIBLE);
findViewById(R.id.sign_out_button).setVisibility(View.GONE);
}
checkButtonVisibility();
}
}
Logcat:
06-12 09:54:03.113 4364-4364/com.example.gSignIn I/System.out﹕ Calling Method: mGoogleApiClient.connect( )
06-12 09:54:03.238 4364-4368/com.example.gSignIn D/dalvikvm﹕ GC_CONCURRENT freed 1903K, 16% free 14093K/16647K, paused 21ms+6ms, total 63ms
06-12 09:54:03.598 4364-4364/com.example.gSignIn D/AndroidRuntime﹕ Shutting down VM
06-12 09:54:03.598 4364-4364/com.example.gSignIn W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x411762a0)
06-12 09:54:03.613 4364-4364/com.example.gSignIn E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.IllegalStateException: A fatal developer error has occurred. Check the logs for further information.
at com.google.android.gms.internal.jl$h.b(Unknown Source)
at com.google.android.gms.internal.jl$h.g(Unknown Source)
at com.google.android.gms.internal.jl$b.hy(Unknown Source)
at com.google.android.gms.internal.jl$a.handleMessage(Unknown Source)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:137)
at android.app.ActivityThread.main(ActivityThread.java:4921)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:511)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1038)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:805)
at dalvik.system.NativeStart.main(Native Method)
Manifest:
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.gSignIn">
<application android:allowBackup="true" android:label="@string/app_name"
android:icon="@drawable/ic_launcher" android:theme="@style/AppTheme">
<activity android:name="com.example.gSignIn.Splash" android:label="@string/app_name" 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.example.gSignIn.MenuActivity" android:label="@string/app_name" android:screenOrientation="portrait">
<intent-filter>
<action android:name="com.example.gSignIn.MenuActivity"/>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>
</application>
</manifest>
回答1:
A few things worth checking:
- Did you correctly setup your API console project in the Google Developer Console?
- If you are using Google Play Games Services, you must set up the project using the Google Play Games Console (click the
icon on the left). If you are using Google Play Games Services, you may need to also add the following to your
androidmanifest.xml:<meta-data android:name="com.google.android.gms.games.APP_ID" android:value="@string/app_id" /> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version"/>
icon on the left).Your APP ID from the Google Play Games Services Console should be set in resources/values.xml, for example:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_id">1234567890</string>
</resources>
Note that the App ID is just a unique ~10 character value not the longer string that is the client ID.
回答2:
<meta-data android:name="com.google.android.gms.games.APP_ID"
android:value="@string/app_id" />
<meta-data android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version"/>
This helped for me, be also sure you reference your build.gradle properly : Add in the dependencies : compile project(':BaseGameUtils')
来源：https://stackoverflow.com/questions/30795412/android-error-calling-googleapiclient-connect