iPhun
iPhun
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Loading Images Asynchronously on iPhone using NSInvocationOperation
06/30/2010 - 15:43
This is a great tutorial!! I have a question. I have a quiz type app that I am trying to load the images asynchronously through resource files and I can't quite get it to work without loading all the images? It takes too much memory to load all the images (i'm aware of that), but how can I release the images from the superview without causing issues with the random integers? Here's the file - Any help is greatly appreciated!!
- (void)viewDidLoad {
index=16;
var_Index=0;
X=160;
R=80;
W1=240;
W2=80;
W3=240;
rgt_ans=60;
wrg_ans=60;
XC=80;
YC=80;
XW1=240;
YW1=80;
XW2=80;
YW2=130;
XW3=240;
YW3=130;
time=15;
[self KBC_Game];
[super viewDidLoad];
}
-(void)KBC_Game{
currentViewLocation = 250;
var_Score=0;
Questions_Count=0;
KBC_Questions=[[NSMutableArray alloc]init];
KBC_Image_Ans=[[NSMutableArray alloc]init];
KBC_Image_Wrong1=[[NSMutableArray alloc]init];
KBC_Image_Wrong2=[[NSMutableArray alloc]init];
KBC_Image_Wrong3=[[NSMutableArray alloc]init];
img_Bankground =[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"BarQuizGameBackground.png"]];
[img_Bankground setUserInteractionEnabled:YES];
[self.view addSubview:img_Bankground];
imageView_tmp = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"prize%d.png"]];
[imageView_tmp setFrame:CGRectMake(60, 200, 200, 100)];
[imageView_tmp setHidden:NO];
[imageView_tmp setImage:[UIImage imageNamed:@"115.png"]];
[self.view addSubview:imageView_tmp];
[imageView_tmp release];
scrol_KBC=[[UIScrollView alloc]initWithFrame:CGRectMake(0,320,320,160)];
scrol_KBC.pagingEnabled = YES;
scrol_KBC.delegate = self;
scrol_KBC.scrollEnabled = YES;
[scrol_KBC setBackgroundColor:[UIColor blackColor]];
[scrol_KBC setContentSize:CGSizeMake(scrol_width*16,scrol_height)];
[scrol_KBC setDirectionalLockEnabled:YES];
[self.view addSubview:scrol_KBC];
img_Bankground =[[UIImageView alloc]initWithImage:[UIImage imageNamed:@"background.png"]];
[img_Bankground setUserInteractionEnabled:YES];
//[scrol_KBC addSubview:img_Bankground];
[img_Bankground release];
HERE IS MY PROBLEM
for(int i=1;i<45;i++){
{
[KBC_Questions addObject:[UIImage imageNamed:[NSString stringWithFormat:@"KBCQ%d.png",i]]];
[KBC_Image_Ans addObject:[UIImage imageNamed:[NSString stringWithFormat:@"KBCC%d.png",i]]];
[KBC_Image_Wrong1 addObject:[UIImage imageNamed:[NSString stringWithFormat:@"KBCW%d.png",i]]];
[KBC_Image_Wrong2 addObject:[UIImage imageNamed:[NSString stringWithFormat:@"KBCWW%d.png",i]]];
[KBC_Image_Wrong3 addObject:[UIImage imageNamed:[NSString stringWithFormat:@"KBCWWW%d.png",i]]];
}
}
arr_Index=[[NSMutableArray alloc]init];
[self random_value];
NSLog(@"arr_Index is %@",arr_Index);
//NSLog(@"size is %d ",[KBC_Questions count]) ;
//NSLog(@"array contents is %@ ",KBC_Questions );
for(int i=0;i<16;i++)
{
//SWAPING ANSWERS
int rand_value=arc4random()%3;
NSLog(@"rand_value is%d",rand_value);
if(rand_value==0)
{
int swap;
swap=XC;
XC=XW3;
XW3=swap;
swap=YC;
YC=YW3;
YW3=swap;
}
if(rand_value==1)
{
int swap;
swap=XC;
XC=XW1;
XW1=swap;
swap=YC;
YC=YW1;
YW1=swap;
}
else if(rand_value==2)
{
int swap;
swap=XC;
XC=XW2;
XW2=swap;
swap=YC;
YC=YW2;
YW2=swap;
}
/* {
UIImageView *imageView;
// create game begin view
imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"LetsBegin.png"]];
imageView.center = [self view].center;
imageView.alpha = 0.0;
imageView.transform = CGAffineTransformMakeScale (6.0, 6.0);
[[self view] addSubview:imageView];
// animate it in
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:ANIM_LONG];
imageView.alpha = 1.0;
imageView.transform = CGAffineTransformIdentity;
[UIView commitAnimations];
[imageView release];
// animate it out
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:ANIM_LONG];
imageView.alpha = 0.0;
imageView.transform = CGAffineTransformMakeScale (3.0, 3.0);
[UIView commitAnimations];
}
*/
/*
{
CGAffineTransform moveTransform = CGAffineTransformMakeTranslation(-320, 0);
CABasicAnimation *moveAnim = [CABasicAnimation animationWithKeyPath:@"transform"];
moveAnim.duration = 2.0;
moveAnim.toValue= [NSValue valueWithCATransform3D:
CATransform3DMakeAffineTransform(moveTransform)];
moveAnim.repeatCount = 3;
[plane2.layer addAnimation:moveAnim forKey:@"animateTransform"]
}
*/
//NSLog(@"i value is %d",i);
UIImageView *img_Question=[[UIImageView alloc]initWithImage:[KBC_Questions objectAtIndex:[[arr_Index objectAtIndex:i]intValue]]];
//[img_Question setBackgroundColor:[UIColor redColor]];
//img_Question.tag=i;
[img_Question setCenter:CGPointMake(X,23)];
[scrol_KBC addSubview:img_Question];
[img_Question release];
X=X+320;
btn_right=[UIButton buttonWithType:UIButtonTypeCustom];
[btn_right setFrame:CGRectMake(0,0, 125,35)];
btn_right.tag=i;
[btn_right setBackgroundColor:[UIColor redColor]];
//[btn_right setCenter:CGPointMake(var_x_origin_image_right,var_y_origin_image_right)];
[btn_right setCenter:CGPointMake(XC,YC)];
//[btn_right setImage:[KBC_Image_Ans objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_right setImage:[KBC_Image_Ans objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_right addTarget:self action:@selector(right_ans:) forControlEvents:UIControlEventTouchUpInside];
[scrol_KBC addSubview:btn_right];
XC=XC+320;
btn_wrong1=[UIButton buttonWithType:UIButtonTypeCustom];
[btn_wrong1 setFrame:CGRectMake(0,0, 125, 35)];
btn_wrong1.tag=i;
[btn_wrong1 setBackgroundColor:[UIColor redColor]];
[btn_wrong1 setCenter:CGPointMake(XW1,YW1)];
//[btn_wrong1 setImage:[KBC_Image_Wrong1 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong1 setImage:[KBC_Image_Wrong1 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong1 addTarget:self action:@selector(wrong_ans:) forControlEvents:UIControlEventTouchUpInside];
[scrol_KBC addSubview:btn_wrong1];
XW1=XW1+320;
btn_wrong2=[UIButton buttonWithType:UIButtonTypeCustom];
[btn_wrong2 setFrame:CGRectMake(0,0, 125, 35)];
btn_wrong2.tag=i;
[btn_wrong2 setBackgroundColor:[UIColor redColor]];
[btn_wrong2 setCenter:CGPointMake(XW2,YW2)];
//[btn_wrong2 setImage:[KBC_Image_Wrong2 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong2 setImage:[KBC_Image_Wrong2 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong2 addTarget:self action:@selector(wrong_ans:) forControlEvents:UIControlEventTouchUpInside];
[scrol_KBC addSubview:btn_wrong2];
XW2=XW2+320;
btn_wrong3=[UIButton buttonWithType:UIButtonTypeCustom];
[btn_wrong3 setFrame:CGRectMake(0,0, 125, 35)];
btn_wrong3.tag=i;
[btn_wrong3 setBackgroundColor:[UIColor redColor]];
[btn_wrong3 setCenter:CGPointMake(XW3,YW3)];
//[btn_wrong3 setImage:[KBC_Image_Wrong3 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong3 setImage:[KBC_Image_Wrong3 objectAtIndex:[[arr_Index objectAtIndex:i]intValue]] forState:UIControlStateNormal];
[btn_wrong3 addTarget:self action:@selector(wrong_ans:) forControlEvents:UIControlEventTouchUpInside];
[scrol_KBC addSubview:btn_wrong3];
XW3=XW3+320;
}
}
-(IBAction)right_ans:(UIButton*)sender
{
Flag_Right_Button_Pressed=1;
[btn_right setEnabled:YES];
scrol_KBC.scrollEnabled = YES;
NSLog(@"Auto_Scroll_Var %d",Auto_Scroll_Var,0);
{
AVsound = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"ding2" ofType:@"wav"] ] error:NULL];
AVsound.numberOfLoops=0;
[AVsound play];
}
[imageView_tmp setHidden:NO];
Prize_Count=Auto_Scroll_Var+1;
if(Auto_Scroll_Var+=320)
scrol_KBC.contentOffset= CGPointMake(Auto_Scroll_Var,0);
if(Auto_Scroll_Var==320)
{
[imageView_tmp setImage:[UIImage imageNamed:@"215.png"]];
}
if(Auto_Scroll_Var==640)
{
[imageView_tmp setImage:[UIImage imageNamed:@"315.png"]];
}
if(Auto_Scroll_Var==960)
{
[imageView_tmp setImage:[UIImage imageNamed:@"415.png"]];
}
if(Auto_Scroll_Var==1280)
{
[imageView_tmp setImage:[UIImage imageNamed:@"515.png"]];
}
if(Auto_Scroll_Var==1600)
{
[imageView_tmp setImage:[UIImage imageNamed:@"615.png"]];
}
if(Auto_Scroll_Var==1920)
{
[imageView_tmp setImage:[UIImage imageNamed:@"715.png"]];
}
if(Auto_Scroll_Var==2240)
{
[imageView_tmp setImage:[UIImage imageNamed:@"815.png"]];
}
if(Auto_Scroll_Var==2560)
{
[imageView_tmp setImage:[UIImage imageNamed:@"915.png"]];
}
if(Auto_Scroll_Var==2880)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1015.png"]];
}
if(Auto_Scroll_Var==3200)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1115.png"]];
}
if(Auto_Scroll_Var==3520)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1215.png"]];
}
if(Auto_Scroll_Var==3840)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1315.png"]];
}
if(Auto_Scroll_Var==4160)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1415.png"]];
}
printf("Scrolview Locations>>>%d\n",Auto_Scroll_Var);
if(Auto_Scroll_Var==4480)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1515.png"]];
if(Prize_Count = 1){
[OFAchievementService unlockAchievement:@"375154"];
}
if(Prize_Count > 10){
[OFAchievementService unlockAchievement:@"376024"];
}
if(Prize_Count > 25){
[OFAchievementService unlockAchievement:@"376384"];
}
if(Prize_Count > 50){
[OFAchievementService unlockAchievement:@"376394"];
}
/*
[OFAchievementService unlockAchievement:@"376404"];
*/
{
UIImageView *imageView;
// create game over view
imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"Brainiac.png"]];
imageView.center = [self view].center;
imageView.alpha = 0.0;
imageView.transform = CGAffineTransformMakeScale (6.0, 6.0);
[[self view] addSubview:imageView];
// animate it in
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:ANIM_LONG];
imageView.alpha = 1.0;
imageView.transform = CGAffineTransformIdentity;
[UIView commitAnimations];
}
UIAlertView *alert4 = [[UIAlertView alloc]
initWithTitle:@"You are a brainiac"
message:@"You Have Earned 1 Achievement Point"
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert4 show];
[alert4 release];
}
if(Auto_Scroll_Var==4840)
{
[imageView_tmp setImage:[UIImage imageNamed:@"1515.png"]];
}
}
- (void) alertView:(UIAlertView *)alert clickedButtonAtIndex:(NSInteger)buttonIndex{
//[self.navigationController setNavigationBarHidden:NO];
//[self.navigationController popViewControllerAnimated:YES];
ScoreController *scoreController = [[ScoreController alloc] init];
[self.navigationController pushViewController:scoreController animated:YES];
[scoreController release];
}
-(IBAction)wrong_ans:(UIButton*)sender
{
if(!(Flag_Wrong_Button_Pressed))
{
NSLog(@"Auto_Scroll_Var %d",Auto_Scroll_Var);
//[imageView_tmp setHidden:NO];
//if(Auto_Scroll_Var<5)
//if(!(Flag_Wrong_Button_Pressed))
{
[imageView_tmp setHidden:NO];
if(Prize_Count>-1)
{
UIImageView *imageView;
// create game over view
imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"GameOver.png"]];
imageView.center = [self view].center;
imageView.alpha = 0.0;
imageView.transform = CGAffineTransformMakeScale (6.0, 6.0);
[[self view] addSubview:imageView];
// animate it in
[UIView beginAnimations:nil context:nil];
[UIView setAnimationDuration:ANIM_LONG];
imageView.alpha = 1.0;
imageView.transform = CGAffineTransformIdentity;
[UIView commitAnimations];
}
{
AVsound = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:[[NSBundle mainBundle] pathForResource:@"buzzer2" ofType:@"wav"] ] error:NULL];
AVsound.numberOfLoops=0;
[AVsound play];
}
{
NSLog(@"0");
[imageView_tmp setImage:[UIImage imageNamed:@"%d"]];
UIAlertView *alert = [[UIAlertView alloc]
initWithTitle:@"Seriously?? Start Studying!!"
message:@"Better Luck Next Time!"
delegate:self
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
}
}
}
-(void)random_value
{
int randomIndex = [self getRandomNumber:0 to:19];
for (int c = 0; c < [arr_Index count];c++)
{
// printf("no of times execute....\n%d",c);
if([[arr_Index objectAtIndex:c] intValue]==randomIndex)
{
randomIndex=0;
}
}
if (randomIndex==0)
{
[self random_value];
}
else
{
if(var_Index<16)
{
var_Index++;
[arr_Index addObject:[NSNumber numberWithInt:randomIndex]];
[self random_value];
}
else
{
//printf("Random Value.....\n\n");
//for(int i=0;i<[arr_Index count];i++)
//{
// printf("%d\n",[[arr_Index objectAtIndex:i] intValue]);
//}
return ;
}
}
}
//--------Random Number Manipulation---------
- (int)getRandomNumber:(int)frm to:(int)to
{
return (int)frm + arc4random() % (to-frm+1);
}
- (void)scrollViewDidEndDecelerating:(UIScrollView *)scrollView{
NSLog(@"hie");
Flag_Right_Button_Pressed=0;
//X_Axis_ScrollView=X_Axis_ScrollView+320;
Auto_Scroll_Var=Auto_Scroll_Var+=320;
NSLog(@"Auto_Scroll_Var is %d",Auto_Scroll_Var);
NSLog(@"scrol_KBC.contentOffset.x is %f",scrol_KBC.contentOffset.x);
scrol_KBC.scrollEnabled = NO;
[scrol_KBC setDirectionalLockEnabled:YES];
if(scrol_KBC.contentOffset.x < Auto_Scroll_Var)
{
NSLog(@"Hurray");
currentViewLocation = scrol_KBC.contentOffset.x;
scrol_KBC.scrollEnabled = NO;
}
[scrol_KBC setDirectionalLockEnabled:YES];
}
/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations
return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[AVsound release];
[super dealloc];
}
@end
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