所以我UIscrollview在我看来是两个。我正在使用Ray Wenderlich's Custom Image Picker。但是当我加载它时，只显示 1 个图像选择器。我希望能够加载两个图像选择器。我认为我做错了initWithCoder部分。似乎无法正确初始化它。是否有可能有两个 ivars self。抱歉，对 iphoneDev 有点陌生。谢谢你的帮助。
这是我的整个实现：
- (id) initWithCoder:(NSCoder *)aDecoder {
if ((self = [super initWithCoder:aDecoder])) {
_images = [[NSMutableArray alloc] init];
_thumbs = [[NSMutableArray alloc] init];
//THIS IS WHERE I THINK ITS WRONG but the upper part seems to be okay.
_images2 = [[NSMutableArray alloc] init];
_thumbs2 = [[NSMutableArray alloc] init];
}
return self;
}
- (void)addImage:(UIImage *)image {
[_images addObject:image];
[_thumbs addObject:[image imageByScalingAndCroppingForSize:CGSizeMake(60, 60)]];
}
- (void)addImage2:(UIImage *)image {
[_images2 addObject:image];
[_thumbs2 addObject:[image imageByScalingAndCroppingForSize:CGSizeMake(60, 60)]];
}
- (void) createScrollView {
self.slotBg = [[UIView alloc] initWithFrame:CGRectMake(43, 370, 300, 143)];
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = self.slotBg.bounds;
gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor grayColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil];
[self.slotBg.layer insertSublayer:gradient atIndex:0];
[self.view addSubview:self.slotBg];
UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0f,0.0f,300.0f,134.0f)];
[slotBg addSubview:scrollView];
int row = 0;
int column = 0;
for(int i = 0; i < _thumbs.count; ++i) {
UIImage *thumb = [_thumbs objectAtIndex:i];
UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(column*60+10, row*60+10, 60, 60);
[button setImage:thumb forState:UIControlStateNormal];
[button addTarget:self
action:@selector(buttonClicked:)
forControlEvents:UIControlEventTouchUpInside];
button.tag = i;
[scrollView addSubview:button];
if (column == 4) {
column = 0;
row++;
} else {
column++;
}
}
[scrollView setContentSize:CGSizeMake(330, (row+1) * 60 + 10)];
}
- (void) createScrollView2 {
self.slotBg2 = [[UIView alloc] initWithFrame:CGRectMake(362, 370, 300, 143)];
CAGradientLayer *gradient = [CAGradientLayer layer];
gradient.frame = self.slotBg.bounds;
gradient.colors = [NSArray arrayWithObjects:(id)[[UIColor grayColor] CGColor], (id)[[UIColor whiteColor] CGColor], nil];
[self.slotBg.layer insertSublayer:gradient atIndex:0];
[self.view addSubview:self.slotBg];
UIScrollView *scrollView2 = [[UIScrollView alloc] initWithFrame:CGRectMake(0.0f,0.0f,300.0f,134.0f)];
[slotBg addSubview:scrollView2];
int row = 0;
int column = 0;
for(int i = 0; i < _thumbs2.count; ++i) {
UIImage *thumb = [_thumbs2 objectAtIndex:i];
UIButton * button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(column*60+10, row*60+10, 60, 60);
[button setImage:thumb forState:UIControlStateNormal];
[button addTarget:self
action:@selector(buttonClicked2:)
forControlEvents:UIControlEventTouchUpInside];
button.tag = i;
[scrollView2 addSubview:button];
if (column == 4) {
column = 0;
row++;
} else {
column++;
}
}
[scrollView2 setContentSize:CGSizeMake(330, (row+1) * 60 + 10)];
}
- (IBAction)buttonClicked:(id)sender {
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
NSInteger slotBG = [prefs integerForKey:@"integerKey"];
if(slotBG == 1){
UIButton *button = (UIButton *)sender;
[button removeFromSuperview];
[_images objectAtIndex:button.tag];
[_images removeObjectAtIndex:button.tag];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"oneSlotImages%lu.png", button.tag]];
[fileManager removeItemAtPath: fullPath error:NULL];
NSLog(@"image removed");
} else if (slotBG == 2){
UIButton *button = (UIButton *)sender;
[button removeFromSuperview];
[_images objectAtIndex:button.tag];
[_images removeObjectAtIndex:button.tag];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"firstSlotImages%lu.png", button.tag]];
[fileManager removeItemAtPath: fullPath error:NULL];
NSLog(@"image removed");
} else if (slotBG == 3){
UIButton *button = (UIButton *)sender;
[button removeFromSuperview];
[_images objectAtIndex:button.tag];
[_images removeObjectAtIndex:button.tag];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"oneSlotImages%lu.png", button.tag]];
[fileManager removeItemAtPath: fullPath error:NULL];
NSLog(@"image removed");
}
}
- (IBAction)buttonClicked2:(id)sender {
UIButton *button2 = (UIButton *)sender;
[button2 removeFromSuperview];
[_images2 objectAtIndex:button2.tag];
[_images2 removeObjectAtIndex:button2.tag];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"secondSlotImages%lu.png", button2.tag]];
[fileManager removeItemAtPath: fullPath error:NULL];
NSLog(@"image removed");
}
- (void)viewDidLoad
{
[super viewDidLoad];
NSInteger slotBG = [prefs integerForKey:@"integerKey"];
if(slotBG == 1){
[mode1 setHighlighted:YES];
for(int i = 0; i <= 100; i++)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"oneSlotImages%d.png", i]];
NSLog(@"savedImagePath=%@",savedImagePath);
if([[NSFileManager defaultManager] fileExistsAtPath:savedImagePath]){
[self addImage:[UIImage imageWithContentsOfFile:savedImagePath]];
NSLog(@"file exists");
}
}
NSLog(@"Count : %d", [_images count]);
[self createScrollView];
} else if(slotBG == 2 ){
[mode2 setHighlighted:YES];
for(int i = 0; i <= 100; i++)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"firstSlotImages%d.png", i]];
NSLog(@"savedImagePath=%@",savedImagePath);
if([[NSFileManager defaultManager] fileExistsAtPath:savedImagePath]){
[self addImage:[UIImage imageWithContentsOfFile:savedImagePath]];
NSLog(@"file exists");
}
}
NSLog(@"Count : %d", [_images count]);
[self createScrollView];
for(int i = 0; i <= 100; i++)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"secondSlotImages%d.png", i]];
NSLog(@"savedImagePath=%@",savedImagePath);
if([[NSFileManager defaultManager] fileExistsAtPath:savedImagePath]){
[self addImage2:[UIImage imageWithContentsOfFile:savedImagePath]];
NSLog(@"file exists");
}
}
NSLog(@"Count : %d", [_images2 count]);
[self createScrollView2];
} else if( slotBG == 3){
[mode3 setHighlighted:YES];
for(int i = 0; i <= 100; i++)
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *savedImagePath = [documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"oneSlotImages%d.png", i]];
NSLog(@"savedImagePath=%@",savedImagePath);
if([[NSFileManager defaultManager] fileExistsAtPath:savedImagePath]){
[self addImage:[UIImage imageWithContentsOfFile:savedImagePath]];
NSLog(@"file exists");
}
}
NSLog(@"Count : %d", [_images count]);
[self createScrollView];
}
}