在我的android项目中，我有一个同步适配器，可以将数据从Android设备同步到服务器并且工作正常，但最近我注意到onPerfomSync没有调用我的moto g3安卓手机，我不知道知道是否有任何其他手机存在同样的问题，我已经在其他一些具有不同android api级别的三星手机上进行了测试，但没有发现任何问题。我已经找到成功的用户登录时配置了同步。这种行为的原因是什么。如果我做错了，请更正我。 以下是我的代码。
private void finishLogin(Intent intent) {
String accountName = intent.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
String accountPassword = intent.getStringExtra(PARAM_USER_PASS);
final Account account = new Account(accountName, intent.getStringExtra(AccountManager.KEY_ACCOUNT_TYPE));
if (getIntent().getBooleanExtra(ARG_IS_ADDING_ACCOUNT, false)) {
String authtoken = intent.getStringExtra(AccountManager.KEY_AUTHTOKEN);
String authtokenType = authTokenType;
String refreshToken = intent.getStringExtra(KEY_REFRESH_TOKEN);
Bundle userData = new Bundle();
userData.putString(KEY_REFRESH_TOKEN, refreshToken);
accountManager.addAccountExplicitly(account, accountPassword, userData);
accountManager.setAuthToken(account, authtokenType, authtoken);
accountManager.setUserData(account,KEY_REFRESH_TOKEN,refreshToken);
ContentResolver.setMasterSyncAutomatically(true);
ContentResolver.setSyncAutomatically(account, "com.myexample.mysampleproject", true);
configurePeriodicSync(account, SYNC_INTERVAL, SYNC_FLEXTIME);
try {
} catch (Exception e) {
e.printStackTrace();
}
} else {
System.out.println("condition else getIntent().getBooleanExtra(ARG_IS_ADDING_ACCOUNT, false)");
accountManager.setPassword(account, accountPassword);
}
setAccountAuthenticatorResult(intent.getExtras());
setResult(RESULT_OK, intent);
finish();
}
public void configurePeriodicSync(Account account, int syncInterval, int flexTime) {
Log.d(TAG, "PERIODC SYNC CONFIGURED");
Bundle mySyncExtras = new Bundle();
mySyncExtras.putBoolean("MY_SYNC", true);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
System.out.println("if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)");
SyncRequest request = new SyncRequest.Builder().
syncPeriodic(syncInterval, flexTime).
setSyncAdapter(account, "com.myexample.mysampleproject").setExtras(mySyncExtras).build();
ContentResolver.requestSync(request);
} else {
System.out.println("else (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT)");
ContentResolver.addPeriodicSync(account, "com.myexample.mysampleproject", mySyncExtras, syncInterval);
}
}
SyncService.java：
public class SyncService extends Service {
private static SyncAdapter syncAdapter = null;
private static final Object syncAdapterLock = new Object();
@Override
public void onCreate() {
synchronized (syncAdapterLock) {
if (syncAdapter == null) {
syncAdapter = new SyncAdapter(getApplicationContext(), true);
}
}
}
@Override
public IBinder onBind(Intent intent) {
return syncAdapter.getSyncAdapterBinder();
}
}
AndroidManifest.xml：
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.myexample.mysampleproject" >
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.USE_CREDENTIALS" />
<uses-permission android:name="android.permission.GET_ACCOUNTS" />
<uses-permission android:name="android.permission.MANAGE_ACCOUNTS" />
<uses-permission android:name="android.permission.AUTHENTICATE_ACCOUNTS" />
<uses-permission android:name="android.permission.READ_SYNC_SETTINGS" />
<uses-permission android:name="android.permission.WRITE_SYNC_SETTINGS" />
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-feature android:name="android.hardware.camera" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
<uses-permission android:name="com.android.alarm.permission.SET_ALARM"/>
<uses-permission android:name="android.permission.WAKE_LOCK"/>
<application
android:largeHeap="true"
android:allowBackup="true"
android:icon="@mipmap/ic_launcher"
android:label="@string/app_name"
android:theme="@style/AppTheme" >
<activity
android:name=".view.MainActivity"
android:configChanges="orientation|screenSize"
android:theme="@style/AppTheme"
android:label="@string/app_name" >
</activity>
<activity android:name=".view.LoginActivity"
android:configChanges="orientation|screenSize"
android:theme="@style/AppTheme"
android:label="@string/login_label"/>
........
........
<provider
android:name=".db.MyContentProvider"
android:authorities="com.myexample.mysampleproject"
android:exported="false"
android:syncable="true" />
<service
android:name=".sync.SyncService"
android:exported="true">
<intent-filter>
<action android:name="android.content.SyncAdapter" />
</intent-filter>
<meta-data
android:name="android.content.SyncAdapter"
android:resource="@xml/sync_adapter" />
</service>
</application>
</manifest>
sync_adapter.xml：
<?xml version="1.0" encoding="utf-8"?>
<sync-adapter
xmlns:android="http://schemas.android.com/apk/res/android"
android:contentAuthority="com.myexample.mysampleproject"
android:accountType="com.myexample.mysampleproject"
android:userVisible="true"
android:supportsUploading="true"
android:allowParallelSyncs="true"
android:isAlwaysSyncable="true" />
SyncAdapter.java：
public class SyncAdapter extends AbstractThreadedSyncAdapter {
ContentResolver contentResolver;
Context context;
String authToken;
public SyncAdapter(Context context, boolean autoInitialize) {
super(context, autoInitialize);
this.context = context;
contentResolver = context.getContentResolver();
}
@TargetApi(Build.VERSION_CODES.HONEYCOMB)
public SyncAdapter(Context context, boolean autoInitialize, boolean allowParallelSyncs) {
super(context, autoInitialize, allowParallelSyncs);
contentResolver = context.getContentResolver();
}
@Override
public void onPerformSync(Account account, final Bundle extras, String authority,
ContentProviderClient provider, SyncResult syncResult) {
try {
System.out.println("start sync ");
AccountManager manager = AccountManager.get(context);
authToken = manager.peekAuthToken(account, AccountGeneral.AUTHTOKEN_TYPE_FULL_ACCESS);
try {
if(authToken != null) {
if (isOnline()) {
// perform sync....
} else {
Log.d("ATTEMPT SYNC ERROR", "NO NETWORK CONNECTION");
}
}
} catch (Exception e) {
e.printStackTrace();
}
} catch (Exception e) {
e.printStackTrace();
}
}
}