If I add a uiwebview using storyboard it works great. But webviews that is added programmatically not scrolling.
self.webview=[[UIWebView alloc] init];
path=[[NSBundle mainBundle] pathForResource:#"index" ofType:#"html"];
[self.webview setFrame:CGRectMake(-200, 0, 200, 300)];
[self.webview loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:path]]];
[self.view addSubview:self.webview];
UIWebview is added to a View programmatically using the below code:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
UIWebView *webview=[[UIWebView alloc]initWithFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.view.frame.size.width,600)];
[webview setBackgroundColor:[UIColor redColor]];
NSString *url=#"http://www.facebook.com";
NSURL *nsurl=[NSURL URLWithString:url];
NSURLRequest *nsrequest=[NSURLRequest requestWithURL:nsurl];
[webview loadRequest:nsrequest];
[self.view addSubview:webview];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
Related
we recently upgraded to IOS 8 (and compiled the application).
we saw that tables with text are not showing well anymore (we use UIWebView).
did anyone encounter this? is this a known issue or a bug?
this is the code:
#import "ViewController.h"
#interface ViewController ()
#property (weak, nonatomic) IBOutlet UIWebView *viewWeb;
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
NSString* fullPath = #"/Users/deployment/Downloads/table-2.ppt";
[_viewWeb loadData:[NSData dataWithContentsOfFile:fullPath] MIMEType:#"application/vnd.ms-powerpoint" textEncodingName:nil baseURL:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
thanks!
Are you tried this code...?
UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(10.0,10.0,300,300)];
[webView setScalesPageToFit:YES];
webView.backgroundColor=[UIColor clearColor];
NSString *ppt = [[NSBundle mainBundle] pathForResource:#"test" ofType:#"ppt"];
NSURL *pptURL = [NSURL fileURLWithPath:ppt];
NSURLRequest *request = [NSURLRequest requestWithURL:pptURL];
[webView loadRequest:request];
[self.view addSubview:webView];
If this code also not worked with your ppt file. Please share your ppt file too. This code working in my case. May be some issue with presentation file.
Im am trying to link one of my buttons from the UIAlertView that pops up so that It changes to another viewcontroller. Basically, the cancel already works, but when Next is clicked it doesnt, and i don't know how to link to another viewcontroller. Please help.
#import "ViewController.h"
#interface ViewController() <UIAlertViewDelegate>
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)clickButton:(id)sender {
UIAlertView *alert = [[UIAlertView alloc] initWithTitle: #"Test" message: #"Message" delegate: self cancelButtonTitle:#"Cancel" otherButtonTitles:#"Redeem", nil];
[alert show];
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if(buttonIndex == 1){ //Next
UIViewController* newView = [[UIViewController alloc] init];
[self presentViewController:newView animated:YES completion:nil];
}
}
#end
It is working...Just create object of viewcontroller that you want to present instead of
UIViewController* newView = [[UIViewController alloc] init];
like
SecondViewController * newView = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
if you are using xib.
Or
SecondViewController * newView = [self.storyboard instantiateViewControllerWithIdentifier:#"SecondViewController"];
if you are using storyboard(if you want to go through coding).
and then write
[self presentViewController:newView animated:YES completion:nil];
line.
who can help me with this code? Simply it doesn't work, same as ALL I have tried for vertical scrolling. I'm starting to think that my Xcode emulator has something wrong. Here's the code:
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(10, 30, 300, 400)];
[self.view addSubview:scroll];
[scroll setBackgroundColor:[UIColor redColor]];
{
UIImageView *imageview = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 1222, 400)];
[imageview setImage:[UIImage imageNamed:#"panorama_orizzonte_medio_big.jpg"]];
[scroll addSubview:imageview];
[self.view addSubview:scroll];
}
// Do any additional setup after loading the view, typically from a nib.
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
After you set the UIImageView, you need to set the scrollView's contentSize to that of your imageView's, so, something like this:
[scroll setContentSize:imageview.frame.size];
I am fairly new to XCode - I'm designing an app with a single view that just displays a UIWebView that loads my jQuery mobile web site.
I have the Default.png and Default#2x.png files for the Launch images in place. When I run the app on my test device or in the emulator, it shows my Launch Image, and then flashes a white screen while the UIWebView loads the first page.
I know that I can change the background color and opacity so it will flash a different color than white, but I would like to prevent the flash altogether. I would like the app to launch, show the Launch image, and not show the UIWebView until the first page has completely loaded. Help?
# Andreas Volz (and anyone else wondering how I solved the problem of the white "flash")
First, add the name-of-loading-image.png and name-of-loading-image#2x.png files to your Xcode project. The regular image should be 320 x 460, and the #2x image should be 640 x 920.
Then, in my ViewController.h file I added these properties:
#property (nonatomic, retain) UIWebView *webView;
#property(nonatomic, strong) UIImageView *loadingImageView;
#end
And then in my ViewController.m file I added this:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController;
#synthesize webView;
#synthesize loadingImageView;
- (void)viewDidLoad
{
[super viewDidLoad];
//**************** Set website URL for UIWebView
[webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:#"http://www.example.com"] cachePolicy:NSURLCacheStorageAllowed timeoutInterval:20.0]];
//**************** Add Static loading image to prevent white "flash" ****************/
UIImage *loadingImage = [UIImage imageNamed:#"name-of-loading-image.png"];
loadingImageView = [[UIImageView alloc] initWithImage:loadingImage];
loadingImageView.animationImages = [NSArray arrayWithObjects:
[UIImage imageNamed:#"name-of-loading-image.png"],
nil];
[self.view addSubview:loadingImageView];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
// Remove loading image from view
[loadingImageView removeFromSuperview];
}
To know when your webView has finished loading, you must implement the UIWebViewDelegate protocol.
In your viewController's .h file:
#interface viewController : UIViewController <UIWebViewDelegate>
{
UIWebView *webView;
}
#end
Then in your viewController's .m file, add this method:
- (void)webViewDidFinishLoad:(UIWebView *)webView {
NSLog(#"content loading finished");
// Display your webView
[self.view addSubview:webView];
}
You can use the -viewDidLoad method in your viewController's .m to continue displaying your launch image. You can also begin the loading of content for your webView:
- (void)viewDidLoad {
[super viewDidLoad];
// continue to display launch image
UIImage *launchImage = [[UIImage alloc] initWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#"launchImage.png" ofType:nil ]];
UIImageView *launchImageView = [[[UIImageView alloc] initWithImage:launchImage] autorelease];
[self.view addSubview:launchImageView];
// now setup the base view for the webView controller
UIView *contentView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
contentView.backgroundColor = [UIColor blueColor];
// for rotation
contentView.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
self.view = contentView;
//create a frame to size and place the web view
CGRect webFrame = [[UIScreen mainScreen] applicationFrame];
UIWebView *aWebView = [[UIWebView alloc] initWithFrame:webFrame];
self.webView = aWebView;
//aWebView.scalesPageToFit = YES;
aWebView.autoresizesSubviews = YES;
aWebView.autoresizingMask=(UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth);
//set the web view delegates for the web view to be itself
[aWebView setDelegate:self];
//determine the path the to the index.html file in the Resources directory
NSURL *url = [[NSBundle mainBundle] URLForResource:#"index" withExtension:#"html"];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
[aWebView loadRequest:requestObj];
}
I'm in the process of learning how to write apps in Xcode. I'm using a book to guide me. Unfortunately the book is written with guides to Xcode 3 and I'm using Xcode 4.
Now so far there haven't been any problems, but this project doesn't work, and I simply don't get it, because it seems to make pretty good sense.
The project's goal is to use a view controller to switch between three views.
Could anyone please take a look and see what I did wrong?
Here is the entire project: http://www.2shared.com/file/CKO6ACzg/MultipleViews.html
PS: I know that as it is now the views will be stacked on top off each other and that the view isn't being cleared when you click a new button.
MultipleViewsViewController.h should be:
#import <UIKit/UIKit.h>
#class FirstViewController;
#class SecondViewController;
#class ThirdViewController;
#interface MultipleViewsViewController : UIViewController {
IBOutlet FirstViewController *firstViewController;
IBOutlet SecondViewController *secondViewController;
IBOutlet ThirdViewController *thirdViewController;
}
//#property (nonatomic, retain) FirstViewController *firstViewController;
//#property (nonatomic, retain) SecondViewController *secondViewController;
//#property (nonatomic, retain) ThirdViewController *thirdViewController;
-(IBAction)loadFirstView:(id)sender;
-(IBAction)loadSecondView:(id)sender;
-(IBAction)loadThirdView:(id)sender;
#end
MultipleViewsViewController.m should be:
#import "MultipleViewsViewController.h"
#import "FirstViewController.h"
#import "SecondViewController.h"
#import "ThirdViewController.h"
#implementation MultipleViewsViewController
//#synthesize firstViewController;
//#synthesize secondViewController;
//#synthesize thirdViewController;
-(IBAction)loadFirstView:(id)sender{
[secondViewController.view removeFromSuperview];
[thirdViewController.view removeFromSuperview];
[self.view insertSubview:firstViewController.view atIndex:0];
}
-(IBAction)loadSecondView:(id)sender{
[firstViewController.view removeFromSuperview];
[thirdViewController.view removeFromSuperview];
[self.view insertSubview:secondViewController.view atIndex:0];
}
-(IBAction)loadThirdView:(id)sender{
[firstViewController.view removeFromSuperview];
[secondViewController.view removeFromSuperview];
[self.view insertSubview:thirdViewController.view atIndex:0];
}
-(void)dealloc{
[firstViewController release];
[secondViewController release];
[thirdViewController release];
[super dealloc];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)viewDidLoad
{
firstViewController = [[FirstViewController alloc] init];
secondViewController = [[SecondViewController alloc] init];
thirdViewController = [[ThirdViewController alloc] init];
[self loadFirstView:nil];
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
Connect your buttons (which you haven't done in your project, which also might be the issue) and you're done.