create a UIWebView and load a website programmatically

Question

The following is my code. I simply want to load a website page and put a back button on screen. Don't know why nothing shows on the screen.

in .h

#import <UIKit/UIKit.h>
@interface ThirdViewController : UIViewController
{
    UIWebView *myWebView;
}
@property (nonatomic, retain) UIWebView *myWebView;
-(IBAction)goBack:(id)sender;
@end

in .m

#import "ThirdViewController.h"
@implementation ThirdViewController
@synthesize myWebView;
-(IBAction)goBack:(id)sender
{
    [myWebView goBack];
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    NSString *urlAddress = @"http://www.apple.com";
    NSURL *url = [NSURL URLWithString:urlAddress];
    NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
    [myWebView loadRequest:requestObj];
    [self.view addSubview:myWebView];

    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]     initWithTitle:@"Back"                                                                              style:UIBarButtonItemStylePlain                                                                         target:self action:@selector(goBack:)];
}

You missed main thing .where is initialization for myWebView — Narayana Rao Routhu, Nov 29 '11 at 11:46

makboney · Accepted Answer · 2015-04-20T11:20:03.230

39

Initialize your webView.

UIWebView *tempWebview = [[UIWebView alloc]initWithFrame:theFrame];
NSString *urlAddress = @"http://www.apple.com";
NSURL *url = [NSURL URLWithString:urlAddress];
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
self.myWebView = tempWebview;
[tempWebview loadRequest:requestObj];
[tempWebview release];
myWebView.delegate=self;

edited Apr 20 '15 at 11:20

answered Nov 29 '11 at 11:45

makboney

1,808
1
17
34

makboney got it in one. You dont even need to add a back button, just push the view controller from whatever class you were in and if that class contains a nav controller there'll be a back button by default – Elmo Nov 29 '11 at 11:48
yup...dont break the protocol.you shouldn't use that Back Button in that way. – makboney Nov 29 '11 at 11:50
Are you talking to me or lav? I thought goBack only worked within a webview opened within a webview – Elmo Nov 29 '11 at 12:22

score 2 · Answer 2 · answered Nov 29 '11 at 11:46

First Initialize Web view .Write The Below Code In Between [Super ViewDidLoad]; and Nsstring Inisilization.

myWebView=[[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
myWebView.delegate=self;
[self.view addSubview:myWebView]

Then Load Request Your Code Will Work.

Bharathi Devarasu · Answer 3 · 2022-07-12T09:42:29.453

Add the below code into your viewcontroller.m file viewDidLoad method.

UIWebView *webView = [[UIWebView alloc]init];
NSString *urlString = @"http://www.sourcefreeze.com";
NSURL *url = [NSURL URLWithString:urlString];
NSURLRequest *urlRequest = [NSURLRequest requestWithURL:url];
[webView loadRequest:urlRequest];
[self.view addSubview:webView];

for complete uiwebview example please refer the below link.

https://sourcefreeze.com/ios-webview-uiwebview-example/

create a UIWebView and load a website programmatically

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