Android Open Source - SyncFrameworkAndroid Sync Helper Froyo

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License

The source code is released under:
Apache License
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Java Source Code

/***
 Copyright (c) 2014 Selvin/*  w  ww  . j  a v  a  2s.  com*/
 Licensed under the Apache License, Version 2.0 (the "License"); you may not
 use this file except in compliance with the License. You may obtain a copy
 of the License at http://www.apache.org/licenses/LICENSE-2.0. Unless required
 by applicable law or agreed to in writing, software distributed under the
 License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
 OF ANY KIND, either express or implied. See the License for the specific
 language governing permissions and limitations under the License.
 */

package pl.selvin.android.listsyncsample.support;

import android.accounts.Account;
import android.accounts.AccountManager;
import android.accounts.AccountManagerCallback;
import android.accounts.AccountManagerFuture;
import android.app.Activity;
import android.content.ContentResolver;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;

import pl.selvin.android.listsyncsample.Constants;

public class SyncHelperFroyo extends SyncHelper {

    private static final String TAG = SyncHelperFroyo.class.getName();

    public SyncHelperFroyo(Activity activity) {
        super(activity);
    }

    @Override
    public void doSync() {
        AccountManager am = AccountManager.get(mActivity);
        Account[] ac = am.getAccountsByType(Constants.ACCOUNT_TYPE);
        if (ac.length > 0) {
            ContentResolver.requestSync(ac[0], Constants.AUTHORITY,
                    new Bundle());
        } else {
            try {
                am.addAccount(Constants.ACCOUNT_TYPE, Constants.AUTHTOKEN_TYPE,
                        null, null, mActivity,
                        new AccountManagerCallback<Bundle>() {
                            @Override
                            public void run(AccountManagerFuture<Bundle> ret) {
                                try {
                                    Log.d(TAG, ret.getResult() + " ");
                                    doSync();
                                } catch (Exception ex) {
                                    // Log.e(TAG, ex.getMessage());
                                    Toast.makeText(
                                            mActivity,
                                            "Can't create ListSync account ... closing",
                                            Toast.LENGTH_LONG).show();
                                    mActivity.finish();
                                }

                            }
                        }, null);

            } catch (Exception ex) {
                Log.e(TAG, ex.getMessage());
                Toast.makeText(mActivity,
                        "Can't open ListSync account ... closing",
                        Toast.LENGTH_LONG).show();
                mActivity.finish();
            }
        }
    }

    class UserIDRunnable implements Runnable {
        UserIDRunnable(final Account ac) {
            this.ac = ac;
        }

        String UserID = null;
        Exception ex = null;
        final Account ac;

        public String getUserID() {
            return UserID;
        }

        public Exception getException() {
            return ex;
        }

        @Override
        public void run() {
            try {
                UserID = AccountManager.get(mActivity).blockingGetAuthToken(ac,
                        Constants.AUTHTOKEN_TYPE, true);
            } catch (Exception e) {
                ex = e;
            }
        }
    }

    public String getUserId() throws Exception {

        AccountManager am = AccountManager.get(mActivity);
        final Account[] ac = am.getAccountsByType(Constants.ACCOUNT_TYPE);
        if (ac.length != 0) {
            UserIDRunnable uid = new UserIDRunnable(ac[0]);
            Thread th = new Thread(uid);
            th.start();                //since 3.1 or so calling blockingGetAuthToken on UI thread will throw illegal state exception
            th.join();                //just hack to not getting illegal state exception ... DO NOT do this in production code
            if (uid.getUserID() != null)
                return uid.getUserID();
            if (uid.getException() != null)
                throw uid.getException();
        }
        throw new Exception("Can't open ListSync account ... closing");
    }
}
Java Source Code List
