Conflict accessing sqlite database android, from S

Question

In my app android, I can access to my sqlite database from:

1) Service android, every 60 seconds.

2) After pressure of button (onclik)

If I press the button while my service is accessing the database an error occurs.

So I insert in the onclickListener, before access to database, a call to stopService()

but the conflict remains, because, even if I call stopService() before access to database, the service is stopped after this!

I tried, using :

private boolean isMyServiceRunning() {
    ActivityManager manager = (ActivityManager)  getSystemService(Context.ACTIVITY_SERVICE);
    for (RunningServiceInfo service : manager.getRunningServices(Integer.MAX_VALUE)) {
        if ("com.example.MyService".equals(service.service.getClassName())) {
           return true;
        }
    }
    return false;
 }

suggested in How to check if a service is running on Android?

I tried to call this method, before access to database, in this manner:

    while(isMyServiceRunning())
    {
        // do nothing
    }

    // *** access to my database ***

What can I do in order to be sure that my service is stopped before accessing to database?

The error is:

10-30 21:05:43.360: E/SQLiteDatabase(13960): Failed to open the database. closing it.
10-30 21:05:43.360: E/SQLiteDatabase(13960):        android.database.sqlite.SQLiteDatabaseLockedException: database is locked
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteDatabase.native_setLocale(Native Method)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteDatabase.setLocale(SQLiteDatabase.java:2115)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:984)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteDatabase.openDatabase(SQLiteDatabase.java:956)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteDatabase.openOrCreateDatabase(SQLiteDatabase.java:1021)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.app.ContextImpl.openOrCreateDatabase(ContextImpl.java:753)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.content.ContextWrapper.openOrCreateDatabase(ContextWrapper.java:221)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at android.database.sqlite.SQLiteOpenHelper.getWritableDatabase(SQLiteOpenHelper.java:149)
10-30 21:05:43.360: E/SQLiteDatabase(13960):    at host.database.DB_DatabaseManager.open(DB_DatabaseManager.java:134)

Answer 1

You can override the onDestroy() event for the service and try to access the database on it:

@Override
public void onDestroy() {
    // *** access to my database ***
    super.onDestroy();
}