Question

I am developing a camera app right now and am using image filter effects for the pictures that I take. So, when I take a picture, the picture should be shown and below that, I want to show ten different filter effects of that picture in the form of a horizontal scroll view.

So, if I click any one of the filter effects in the scroll view, that particular effect should get applied to the picture that I’ve taken and that filter applied picture should get displayed in the same view. I should also have a save button above the picture, so that I can save it in my private app directory. (Note: Not in the default image gallery)

I couldn’t figure out the exact code or the concept that I have to implement as how to insert the images in a horizontal scroll view or how to save the picture in to my private app directory. I am using iOS5. So, any good solution for this is much appreciated.

Answer 1

It may be helps you for horizontal scrollview images.

int scrollWidth = 180;
scrollview.contentSize = CGSizeMake(scrollWidth,110);    
int xOffset = 4;

for(int i = 0; i < [imgnamearr count]; ++i) 
{   
    UIImageView *img = [[UIImageView alloc] init];
    img.layer.masksToBounds = YES;
    img.frame = CGRectMake(5+xOffset,1, 145, 110);
    scrollview.contentSize = CGSizeMake(scrollWidth+xOffset,115); 
    [img addSubview:[UIImage imageNamed:[imgnamearr objectAtIndex:i]]];
    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(5+xOffset,0, 160, 110);
    [button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
    button.accessibilityIdentifier =[imgarr objectAtIndex:i]; 
    [scrollview addSubview:img];
    [scrollview addSubview:button];
    scrollview.contentSize = CGSizeMake(scrollWidth+xOffset,115);
    xOffset += 157;
}

- (IBAction)buttonClicked:(UIButton *)sender {
   UIImageView *bigimg = [[UIImageView alloc] init];
   bigimg.layer.masksToBounds = YES;
   bigimg.frame = CGRectMake(0,0, 200, 200);
   [bigimg addSubview:[UIImage imageNamed:sender.accessibilityIdentifier]];
   [self.view addSubview:bigimg];
}

EDIT 2:

-(void)Setthewholeview{

int row = 0;
int column = 0;


for(int i = 0; i < [imagearry count]; ++i) 
{

    UIView *uview =[[UIView alloc]initWithFrame:CGRectMake(column*155+5, row*126, 155, 125)];
    uview.layer.masksToBounds=YES;
    uview.backgroundColor = [UIColor whiteColor];



    UIImageView *detailback =[[UIImageView alloc] initWithFrame:CGRectMake(0,72,52,52)]; 
    detailback.image=[[UIImage alloc]init];
    detailback.image = [UIImage imageNamed:@"abc.png"];
    [uview addSubview:detailback];
    [detailback release];


    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = CGRectMake(column*155+5, row*126, 155, 125);
    [button addTarget:self action:@selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
    button.tag = [[arrayname objectAtIndex:i]intValue]; 

    if (column == 1) // here set column which you want. If you wnat 2 column then set 1 here.
    {
        column = 0;
        row++;
    } else 
    {
        column++;
    }

    [self.scrollview addSubview:uview];
    [self.scrollview addSubview:button];
}

[self.scrollview setContentSize:CGSizeMake(320, (row+1) * 130)];

}