src/com/android/settings/DBReadAsyncTask.java

/*
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    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above
      copyright notice, this list of conditions and the following
      disclaimer in the documentation and/or other materials provided
      with the distribution.
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      contributors may be used to endorse or promote products derived
      from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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 */

package com.android.settings;

import android.content.Context;
import android.content.SharedPreferences;
import android.database.Cursor;
import android.net.Uri;
import android.os.AsyncTask;

public class DBReadAsyncTask extends AsyncTask<Void, Void, Boolean> {

    /**
     * SMQ preferences key.
     */
    public static final String SMQ_KEY_VALUE = "app_status";

    /**
     * The authority of the provider.
     */
    public static final String AUTHORITY = "com.qti.smq.Feedback.provider";
    /**
     * The content URI.
     */
    final  Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY);
    /**
     * The Content URI for this table.
     */
    final Uri SNAP_CONTENT_URI = Uri.withAppendedPath(
            CONTENT_URI, "smq_settings");

    Context mContext;

    public static final String KEY_VALUE = "app_status";

    public DBReadAsyncTask(Context mContext) {
        super();
        this.mContext = mContext;
    }

    @Override
    protected Boolean doInBackground(final Void... params) {
        final String whereClause = "key" + "=?";
        final String[] selectionArgs = { KEY_VALUE };

        final Cursor c = mContext.getContentResolver().query(
                SNAP_CONTENT_URI, null, whereClause,
                selectionArgs, null);
        final SharedPreferences sharedPreferences = mContext
                    .getSharedPreferences(SmqSettings.SMQ_PREFS_NAME, Context.MODE_PRIVATE);

        if (c!= null && c.getCount() > 0) {
            c.moveToFirst();
            final int value = c.getInt(1);

            final int appStatus = sharedPreferences.getInt(KEY_VALUE, 0);
            if (appStatus == value) {
                // Do nothing
            } else {
                //Save preference and notify.
                final SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putInt(KEY_VALUE, value);
                editor.commit();

            }

        }
        else{
            //No such table. don't show menu.
            final SharedPreferences.Editor editor = sharedPreferences.edit();
                editor.putInt(KEY_VALUE, 0);
                editor.commit();
        }
        if(c != null){
            c.close();
        }

        return true;
    }

}