ProfsProviderBatch.kt

    private val isInBatchMode : ThreadLocal<Boolean> =
        object : ThreadLocal<Boolean>() {
            override fun initialValue(): Boolean {
                return false
            }
        }

    override fun bulkInsert(uri: Uri, values: Array<out ContentValues>?): Int {
        var successful = false
        var db = dbHelper!!.writableDatabase
        db.beginTransaction()
        try {
            isInBatchMode.set(true)
            var res = super.bulkInsert(uri, values)
            db.setTransactionSuccessful()
            successful = true
            return res
        } finally {
            isInBatchMode.set(false)
            db.endTransaction()
            if (successful) {
                context.contentResolver.notifyChange(uri, null)
            }
        }
    }