Is there a way to rotate an UIPickerView?
//example code placed in view did Load
[super viewDidLoad];
myPicker.delegate = self;
myPicker.dataSource = self;
myPicker.showsSelectionIndicator =YES;
myPicker.backgroundColor = [UIColor blackColor];
CGAffineTransform rotate = CGAffineTransformMakeRotation(3.14/2);
//original settings
//rotate = CGAffineTransformScale(rotate, 0.1, 0.8);
rotate = CGAffineTransformScale(rotate, 0.2, 1.65);
[self.myPicker setTransform:rotate];
NSMutableArray *array = [[NSMutableArray alloc] initWithObjects:#"155", #"165", #"175",
#"185", #"195", #"205", #"215", nil];
self.pickerData = array;
[array release];
NSInteger TOTALITEM = [pickerData count];
UILabel *theview[TOTALITEM-1]; // + 1 for the nil
for (int i=1;i<=TOTALITEM-1;i++) {
theview[i] = [[UILabel alloc] init];
theview[i].text = [NSString stringWithFormat:#"%d",i];
theview[i].textColor = [UIColor blackColor];
theview[i].frame = CGRectMake(0,0, 25, 25);
theview[i].backgroundColor = [UIColor clearColor];
theview[i].textAlignment = UITextAlignmentCenter;
theview[i].shadowColor = [UIColor whiteColor];
theview[i].shadowOffset = CGSizeMake(-1,-1);
theview[i].adjustsFontSizeToFitWidth = NO;
UIFont *myFont = [UIFont fontWithName:#"Helvetica" size:30];
[theview[i] setFont:myFont];
}
CGAffineTransform rotateItem = CGAffineTransformMakeRotation(-3.14/2);
rotateItem = CGAffineTransformScale(rotateItem, .5, 5);
for (int j=1;j<=TOTALITEM-1;j++) {
theview[j].transform = rotateItem;
}
pickerData = [[NSMutableArray alloc] init];
for (int j=1;j<=TOTALITEM-1;j++) {
[pickerData addObject:theview[j]];
}
You can rotate a UIPickerView by applying a transform to a view containing it, much like I suggest in my answer here for scaling the picker.
Are you looking for - (void)selectRow:(NSInteger)row inComponent:(NSInteger)component animated:(BOOL)animated?
Or do you mean that you want to rotate the whole control 90 degrees, thus having wheels that spin to the left and right?
Related
i am writing this code to load a plist into 2 textview but i want them to adjust their height according to content size which i have done but i want the second uitextview to start from where the first one ends .. please help
for (int i = 0; i < arrresult.count; i++) {
NSArray *sorteddetail = [self.arrresult sortedArrayUsingFunction:sortint context:NULL];
DuaObject *duaobj2 = [[DuaObject alloc] initWithFilePath:[sorteddetail objectAtIndex:i]];
[duaobj2 loadFile];
CGRect frame;
frame.origin.x = self.scrollmain.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollmain.frame.size;
UITextView *subview = [[UITextView alloc] initWithFrame:CGRectMake((frame.origin.x)+40,(frame.origin.y)+10, 230, 120)];
UITextView *subview2 = [[UITextView alloc]initWithFrame:CGRectMake((frame.origin.x)+40,(frame.origin.y)+160,230, 120)];
subview.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:#"BG_text.png"]];
subview2.backgroundColor = [UIColor whiteColor];
[subview setFont:[UIFont boldSystemFontOfSize:14]];
[subview2 setFont:[UIFont boldSystemFontOfSize:14]];
subview.layer.cornerRadius = 10 ;
subview2.layer.cornerRadius = 10;
NSString *p = [duaobj2 dua_arabic];
NSString *b = [duaobj2 eng_trans];
subview.text = p;
subview2.text = b;
[self.scrollmain addSubview:subview];
[self.scrollmain addSubview:subview2];
subview.editable = NO;
subview2.editable = NO;
subview.textColor = [UIColor blackColor];
subview2.textColor = [UIColor blackColor];
subview.backgroundColor = [UIColor whiteColor];
subview2.backgroundColor = [UIColor whiteColor];
scrollmain.showsHorizontalScrollIndicator = NO;
CGRect frame1 = subview.frame;
CGRect frame2 = subview2.frame;
frame1.size.height = subview.contentSize.height;
frame2.size.height = subview2.contentSize.height;
subview.frame = frame1;
subview2.frame = frame2;
}
You can use two UIWebView for this. After fetching text data from plist ,redirect it on particular web view. and use [webView stringByEvaluatingJavaScriptFromString:#"document.body.offsetHeight;"] method to get height in pixel. According to height of pixel you can re-adjust web views frame.
Edit:
Look this one : How do I size a UITextView to its content?
It will help you.
Hello all,
I have to add one more view in cell of GMGridView. But i am unable to do this because i have to drag my label from view to view1.
My code is :
- (GMGridViewCell *)GMGridView:(GMGridView *)gridView1 cellForItemAtIndex:(NSInteger)index
{
// set size based on orientation
CGSize size = [self GMGridView:gridView sizeForItemsInInterfaceOrientation:[[UIApplication sharedApplication] statusBarOrientation]];
GMGridViewCell *cell = [gridView dequeueReusableCell];
if (!cell)
{
cell = [[[GMGridViewCell alloc]init]autorelease];
//one view
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, size.width, size.height)];
view.backgroundColor = [UIColor redColor];
view.layer.masksToBounds = NO;
view.layer.cornerRadius = 2;
cell.contentView = view;
//another view
UIView *view1 = [[UIView alloc] initWithFrame:CGRectMake(0, 80, size.width, size.height)];
view1.backgroundColor = [UIColor yellowColor];
view1.layer.masksToBounds = NO;
view1.layer.cornerRadius = 2;
cell.contentView = view1;
}
[[cell.contentView subviews] makeObjectsPerformSelector:#selector(removeFromSuperview)];
// allocate label
UILabel *label = [[UILabel alloc] initWithFrame:cell.contentView.bounds];
label.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
label.text = (NSString *)[self.currentData objectAtIndex:index];
label.textAlignment = UITextAlignmentCenter;
label.backgroundColor = [UIColor clearColor];
label.textColor = [UIColor blackColor];
label.font = [UIFont boldSystemFontOfSize:20];
[cell.contentView addSubview:label];
return cell;
}
height of cell is 200. but still it shows only one view.
Loading Two types of Cell in GMGridView
This is your Solution, it works as charm..
First Do this Exactly
-(void)prepareExhibitor
{
NSInteger spacing = 1.0;
CGRect rect=self.view.frame;
rect.origin=CGPointMake(0, 0);
self.gmGridView = [[GMGridView alloc] initWithFrame:rect];
self.gmGridView.backgroundColor = [UIColor clearColor];
self.gmGridView.centerGrid=NO;
self.gmGridView.style = GMGridViewStylePush;
self.gmGridView.layoutStrategy = [GMGridViewLayoutStrategyFactory strategyFromType:GMGridViewLayoutHorizontal];
self.gmGridView.showsHorizontalScrollIndicator=FALSE;
self.gmGridView.clipsToBounds=YES;
self.gmGridView.itemSpacing = spacing;
self.gmGridView.minEdgeInsets = UIEdgeInsetsMake(0,30, 0, 0);
[self.viewNewsHeadline addSubview:self.gmGridView];
self.gmGridView.actionDelegate = self;
self.gmGridView.dataSource = self;
self.gmGridView.mainSuperView = self.superView;
}
Then Write this accordingly as per your Code
- (GMGridViewCell *)GMGridView:(GMGridView *)gridView cellForItemAtIndex:(NSInteger)index
{
GMGridViewCell *cell = [gridView dequeueReusableCell];
NewsCell_iPad *view;
UIViewController *controller;
if (!cell)
{
// [self removeGrid];
cell = [[GMGridViewCell alloc] init];
if(index%2==0)
{
controller=[[UIViewController alloc] initWithNibName:#"NewsCellTypeA_iPad" bundle:nil];
}
else
{
controller=[[UIViewController alloc] initWithNibName:#"NewsCellTypeB_iPad" bundle:nil];
}
if(!view)
{
view=(NewsCell_iPad *)controller.view;
}
cell.layer.masksToBounds = NO;
cell.contentView = view;
}
NewsCell_iPad *newsView=(NewsCell_iPad *)cell.contentView;
newsView.news=[self.arrNews objectAtIndex:index];
[self hideGradientBackground:newsView.webViewDetailedNews];
[newsView downloadImage];
[newsView loadWebView];
// NSLog(#"cell=%d ,arr image index=%#",index,[self.arrNews objectAtIndex:index]);
return cell;
}
iPhone - 5.1(9B176)
I have been encountering inconsistent behaviour in overlaying a mask view on top of a UITableViewController as shown in picture below. Anyone encountered this behaviour, if yes, please suggest any solutions used?
Below is the code i have used to add mask view:
//Add the overlay view.
if(ovController == nil) {
NSString *cellIdentifier = #"overlayVC";
ovController = [[self storyboard] instantiateViewControllerWithIdentifier:cellIdentifier];
}
CGFloat yaxis = self.navigationController.navigationBar.frame.size.height;
CGFloat width = self.view.frame.size.width;
CGFloat height = self.view.frame.size.height;
CGRect frame = CGRectMake(0, yaxis, width, height);
ovController.view.frame = frame;
ovController.view.alpha = 0.85;
ovController.delegate = self;
UIView *aboveView = self.parentViewController.view;
[self.tableView insertSubview:ovController.view aboveSubview:aboveView];
I have also tried
`[self.tableView insertSubview:ovController.view aboveSubview:self.tableView]`
Hi use something like below code
-(void) showLoadingView {
//NSLog(#">>>>>>>>>>>>>>>>> loading view Landscape right ");
if (loadView == nil) {
loadView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 480.0)];
loadView.opaque = NO;
loadView.backgroundColor = [UIColor clearColor];
//loadView.alpha = 0.8;
viewBack = [[UIView alloc] initWithFrame:CGRectMake(95, 230, 130, 40)];
viewBack.backgroundColor = [UIColor blackColor];
viewBack.alpha = 0.7f;
viewBack.layer.masksToBounds = NO;
viewBack.layer.cornerRadius = 8;
spinningWheel = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(5.0, 5.0, 30.0, 30.0)];
[spinningWheel startAnimating];
// spinningWheel.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
[viewBack addSubview:spinningWheel];
[spinningWheel release];
UILabel *lblLoading = [[UILabel alloc] initWithFrame:CGRectMake(23, 6, 110, 25)];
lblLoading.backgroundColor = [UIColor clearColor];
lblLoading.font = [UIFont fontWithName:#"Helvetica-Bold" size:16.0];
lblLoading.textAlignment = UITextAlignmentCenter;
lblLoading.textColor = [UIColor whiteColor];
lblLoading.text = #"Loading...";
[viewBack addSubview:lblLoading];
[loadView addSubview:viewBack];
}
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
loadView.frame = iphoneFrame;
viewBack.frame = loadiPhone;
}
else
{
loadView.frame = ipadFrame;
viewBack.frame = loadiPad;
}
[self.window addSubview:loadView];
}
-(void) hideLoadingView {
[loadView removeFromSuperview];
}
declare this methods in you APPdelegate class so you can call it from any view in your code.
here i have set a view over the window not in view this surelu solve your problem!!!!
How does one create a dynamic thumbnail grid?
How is a grid created with thumbnails of images like the photo app on iphone?
How are these spaces arranged dynamically? e.g. adding and removing thumbnails.
this is my simple grid view app
- (void)viewDidAppear:(BOOL)animated {
[[Grid_ViewAppDelegate sharedAppDelegate] hideLoadingView];
temp = temp+1;
if (temp ==1){
NSLog(#"temp:%d",temp);
int n = 20; //Numbers of array;
NSArray *t = [[NSArray alloc] initWithObjects:#"calpie.gif",#"chrysler_electric.png",#"chrysler_fiat_cap.gif",#"cleanup.gif",#"ecylindri.gif",#"elect08.png",#"globe.gif",#"heat.gif",#"insur.gif"
,#"jobs.gif",#"office.gif",#"opec1.gif",#"orng_cap.gif",#"poll.gif",#"pollen.gif",#"purbar.gif",#"robinson.gif",#"robslink_cap.gif",#"scot_cap.gif",#"shoes.gif",nil];
myScrollView.contentSize = CGSizeMake(320, 460+n*2);
myScrollView.maximumZoomScale = 4.0;
myScrollView.minimumZoomScale = 1;
myScrollView.clipsToBounds = YES;
myScrollView.delegate = self;
NSString *mxiURL = #"http://meta-x.com/biflash/images/";
int i =0,i1=0;
while(i<n){
int yy = 4 +i1*79;
for(int j=0; j<4;j++){
if (i>=n) break;
CGRect rect;
rect = CGRectMake(4+79*j, yy, 75, 75);
UIButton *button=[[UIButton alloc] initWithFrame:rect];
[button setFrame:rect];
NSString *nn = [mxiURL stringByAppendingString:[t objectAtIndex:i]];
UIImage *buttonImageNormal=[UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: nn]]];
[button setBackgroundImage:buttonImageNormal forState:UIControlStateNormal];
button.tag =i;
[button addTarget:self action:#selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside ];
//[self.view addSubview:button];
[myScrollView addSubview:button];
//[buttonImageNormal release];
[button release];
i++;
//
}
i1 = i1+1;
//i=i+4;
}
}
}
in AppDelegate
+ (Grid_ViewAppDelegate *)sharedAppDelegate
{
return (Grid_ViewAppDelegate *)[UIApplication sharedApplication].delegate;
}
- (void)showLoadingView
{
if (loadingView == nil)
{
loadingView = [[UIView alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 480.0)];
loadingView.opaque = NO;
loadingView.backgroundColor = [UIColor grayColor];
loadingView.alpha = 0.5;
UIActivityIndicatorView *spinningWheel = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(142.0, 222.0, 37.0, 37.0)];
[spinningWheel startAnimating];
spinningWheel.activityIndicatorViewStyle = UIActivityIndicatorViewStyleWhiteLarge;
[loadingView addSubview:spinningWheel];
[spinningWheel release];
CGRect label = CGRectMake(142.0f, 255.0f, 71.0f, 20.0f);
lblLoading = [[UILabel alloc] initWithFrame:label];
lblLoading.textColor = [UIColor whiteColor];
lblLoading.font = [UIFont boldSystemFontOfSize:14];
// UILabel
lblLoading.backgroundColor =[UIColor clearColor];
[lblLoading setText:#"Loading..."];
//[lblLoading setTextAlignment:UITextAlignmentCenter];
[loadingView addSubview:lblLoading];
}
[window addSubview:loadingView];
}
- (void)hideLoadingView
{
[loadingView removeFromSuperview];
}
definitely if u apply this logic. u get succeed
I have a UITable and when I click on a row I load a set of images.
I create the images with
UIImage *image = [UIImage imageWithData:data];
The problem is that ever time I click on the same row, the images are re-allocated into memory, like if no cache it is used and no memory is freed, so the allocated memory keep increasing. (I see this using the Inspector on both the device and the emulator)
I am releasing everything and also, with clang, everything looks fine.
The point is that after a while my app crashes.
Any suggestion or idea?
EDIT:
Here is the portion of code I think is generating the issue:
UIView *main = [[[UIView alloc] initWithFrame:rectScrollView] autorelease];
for (int i=0; i<[contentArray count]; i++) {
float targetWidth = rectScrollView.size.width;
float targetHeight = rectScrollView.size.height;
Link *tmp_link = [contentArray objectAtIndex:i];
AsyncImageView* asyncImage = nil;
if(tmp_link!=nil){
CGRect imageFrame = CGRectMake(targetWidth*i, 0, targetWidth, targetHeight);
//asyncImage = [[[AsyncImageView alloc] initWithFrame:imageFrame ] autorelease];
asyncImage = [[AsyncImageView alloc] initWithFrame:imageFrame ];
asyncImage.contentMode = UIViewContentModeScaleAspectFit;
NSURL* url = [NSURL URLWithString:[[IMG_SERVER_URL stringByAppendingString: tmp_link.url] stringByAddingPercentEscapesUsingEncoding: NSUTF8StringEncoding]];
[asyncImage loadImageFromURL:url];
[self.scrollView addSubview:(UIImageView *)asyncImage];
[asyncImage release];
}
if ([tmp_link.caption length] > 0 && asyncImage!=nil) {
float marginTop = 25;
UILabel *caption = [[UILabel alloc] init];
caption.text = tmp_link.caption;
caption.textAlignment = UITextAlignmentCenter;
caption.textColor = [UIColor whiteColor];
caption.font = [UIFont systemFontOfSize:12];
caption.backgroundColor = [UIColor colorWithWhite:0.0 alpha:0.4];
CGRect captionFrame = CGRectMake((i * targetWidth), marginTop+10, targetWidth, 20.0f);
caption.frame = captionFrame;
[self.scrollView addSubview:caption];
[caption release];
}
//[asyncImage release];
}
[main addSubview:scrollView];
[scrollView release];
if (pageControlEnabledTop) {
rectPageControl = CGRectMake(0, 5, scrollWidth, 15);
}
else if (pageControlEnabledBottom) {
//rectPageControl = CGRectMake(0, (scrollHeight - 25), scrollWidth, 15);
rectPageControl = CGRectMake(0, (scrollHeight), scrollWidth, 15);
}
if (pageControlEnabledTop || pageControlEnabledBottom) {
//pageControl = [[[UIPageControl alloc] initWithFrame:rectPageControl] autorelease];
pageControl = [[UIPageControl alloc] initWithFrame:rectPageControl];
pageControl.numberOfPages = [contentArray count];
pageControl.currentPage = page;
[main addSubview:pageControl];
[pageControl release];
}
if (pageControlEnabledTop || pageControlEnabledBottom || rememberPosition) self.scrollView.delegate = self;
//if (margin) [margin release];
return (UIScrollView *)main;
And it is used like this:
reviewImagesImage = [[IGUIScrollViewImage alloc] init];
if([currentReview.linkScreenshots count]>0){
//reviewImages
reviewImages = [[UIView alloc] init];
//placing the images
CGRect frameImages = reviewImages.frame;
frameImages.origin.x = 10;
frameImages.origin.y = (infoView.frame.origin.y + infoView.frame.size.height + 10.0f);
frameImages.size.width = 300;
frameImages.size.height = 350.0f;
reviewImages.frame = frameImages;
reviewImages.backgroundColor = [UIColor clearColor];
[reviewImagesImage setContentArray:currentReview.linkScreenshots];
[reviewImagesImage setWidth:reviewImages.frame.size.width andHeight: reviewImages.frame.size.height];
[reviewImagesImage enablePageControlOnBottom];
[reviewImagesImage setBackGroudColor: [UIColor clearColor]];
UIScrollView *tmp_sv = [reviewImagesImage getWithPosition:0];
[reviewImages addSubview:tmp_sv];
[self.view addSubview:reviewImages];
[reviewImages release];
}
I have noticed that if I try to release reviewImagesImage my app crashes :/
Of course no cache is used because new UIImage will be created from the data every time. If memory usage significantly increased like you have said, it is most likely that it is our fault that unintentionally keep the reference retained somewhere.
Once you've set your image with imageWithData, save the image to the filepath in the app bundle.