Calling method: reloadPieChart from PieChart class.

[Alexandr Pavlov]

The values from self.legebtArray and self.dataArray aren't deallocated when I call reloadPieChart. I've modified next method and it works.

- (void)getDataFromDataSource{

    //These line of code
    [self.legendArray removeAllObjects];
    [self.dataArray removeAllObjects];
    self.totalCount = @(0);
    
    for(int i = 0; i <[self.dataSource numberOfValuesForPieChart] ; i++){
        
        PieChartDataRenderer *data = [[PieChartDataRenderer alloc] init];
        [data setColor:[self.dataSource colorForValueInPieChartWithIndex:i]];
        [data setTitle:[self.dataSource titleForValueInPieChartWithIndex:i]];
        [data setValue:[self.dataSource valueInPieChartWithIndex:i]];
        
        [self.dataArray addObject:data];
        
        self.totalCount = [NSNumber numberWithFloat:(self.totalCount.floatValue + data.value.floatValue)];
        
        LegendDataRenderer *legendData = [[LegendDataRenderer alloc] init];
        [legendData setLegendText:data.title];
        [legendData setLegendColor:data.color];
        [self.legendArray addObject:legendData];
    }
}