我正在尝试将我的应用程序连接到 Google Play 服务，但我可以检查，它似乎没有正确连接。当我单击检查是否已连接的按钮时，它返回未连接的我。但是，该应用程序可以访问 Google Play 服务并让我检查要使用的电子邮件帐户。
这是代码：
public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks,
GoogleApiClient.OnConnectionFailedListener {
/**
* ATTENTION: This was auto-generated to implement the App Indexing API.
* See https://g.co/AppIndexing/AndroidStudio for more information.
*/
private GoogleApiClient client;
//GoogleApiClient
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
client = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(Games.API).addScope(Games.SCOPE_GAMES)
.build();
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//Games.signOut(client);
TextView textView = (TextView) findViewById(R.id.helloworld);
//client.connect();
if(client.isConnected()){
textView.setText("Buttonconnected");
}else{
textView.setText("Buttonnotconnected");
}
}
});
if (client == null) {
}
}
@Override
public void onStart() {
super.onStart();
//Log.i("app","Lapp");
if (client.isConnected()) {
//TextView t = (TextView) findViewById(R.id.helloworld);
//t.setText("Connected");
}
/* GoogleApiAvailability googleApiAvailability = GoogleApiAvailability.getInstance();
int resultCode = googleApiAvailability.isGooglePlayServicesAvailable(this);
if (resultCode == ConnectionResult.SUCCESS) {
Toast.makeText(this, "Google Play Works!!", Toast.LENGTH_LONG).show();
} else{
Toast.makeText(this, "Google Play Services required!!", Toast.LENGTH_LONG).show();
}*/
if (client != null) {
client.connect();
}
if (client.isConnected()) {
TextView t = (TextView) findViewById(R.id.helloworld);
t.setText("Connected");
}
}
@Override
public void onStop() {
super.onStop();
}
public void onConnectionSuspended(int cause) {
// We are not connected anymore!
Log.i("app", "connectionsuspended");
}
public void onConnected(Bundle connectionHint) {
}
@Override
public void onConnectionFailed(ConnectionResult result) {
// We tried to connect but failed!
TextView t;
// t = (TextView) findViewById(R.id.helloworld);
// t.setText("Failed");
try {
//result.startResolutionForResult(this, 49404);
result.startResolutionForResult(this, 1001);
Log.i("app", "show");
} catch (Exception e) {
Log.i("app", e.toString());
}
client.connect();
client.hashCode();
Toast.makeText(this, "Toasting", Toast.LENGTH_LONG).show();
if (client.isConnected()) {
Log.i("app", "worked");
t = (TextView) findViewById(R.id.helloworld);
t.setText("FailedConnected");
}
if (client.isConnecting()) {
t = (TextView) findViewById(R.id.helloworld);
t.setText("Connecting");
Log.i("app", "Failedtryingtoconnect");
}
}
}
这是我的 build.gradle：
……
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:24.0.0'
compile 'com.google.android.gms:play-services:9.0.2'
}
这是我的 Manifest.xml
……
<meta-data
android:name="com.google.android.gms.version"
android:value="@integer/google_play_services_version" />
<meta-data android:name="com.google.android.gms.games.APP_ID"
android:value="@string/app_id" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
...
我错过了什么吗？我正在使用与我在 Google Developers Console 中注册的帐户相同的帐户进行此测试。我错过了 OAuth2 注册吗？