iOS web view with urlstartswith - ios

Question

if there is someone who can help me to create a simple iOS app , i need just the code
The app needs a WebView wich will load the following url http://www.applicationurl.com/?param=(udid)
The param udid needs to be static so it will never change
The app will have 1 Back button for the webview and 3 simple ifUrlStartsWith if's
if the link in webview is Click to Call it will call that phonenumber
if the link in webview is Apple Map's it will open the Apple maps to a static adress , the adress could be stored in NSSTRING mapadress=#"Romania Street Haleluia nr.2";
if the link in webview is Exit App it will automatically close the app
Can any one help me please ? i always get stuck at urlstartswith and the current url is not showing up.
The code i'm using
//
// ViewController.m
// Aqua Park President
//
// Created by Alex Bonta on 7/13/14.
// Copyright (c) 2014 Aqua President. All rights reserved.
//
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize webView;
- (void)viewDidLoad
{
// GET THE PHONE UDID
NSString *udid=[[[UIDevice currentDevice] identifierForVendor] UUIDString];
udid=[udid substringToIndex:5];
// Loading the url adress with the param of the uinique id
NSString *string = [NSString stringWithFormat:#"http://app.aquapark-felix.ro/?email=%#",udid];
NSURL *url = [NSURL URLWithString:string];
[webView loadRequest:[NSURLRequest requestWithURL:url]];
NSString *currentURL = webView.request.URL.absoluteString;
- (BOOL) webView;(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
//Catching URLs and telling the app what to do
if ([[[request URL] scheme] isEqualToString:#"tel"]) {
NSLog((#"ASA"));
}
}
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end

Answer 1

I have cleaned up your code as well as answering it. Please see the comments in the code for an explanation of the code and also please see the Apple URL Schemes Documentation. The Below code has been tested and works when you pass in a correct URL scheme such as
HTML for making phone call
1-408-555-5555
Natiave for making phone call
tel:[phone]
HTML for accessing maps app
Directions
Native for accessing maps app
http://maps.apple.com/?daddr=San+Francisco,+CA&saddr=cupertino
If you haven't configured these properly it will not work. As you are coming from a website you will need the HTML versions.
//
// ViewController.m
// Aqua Park President
//
// Created by Alex Bonta on 7/13/14.
// Copyright (c) 2014 Aqua President. All rights reserved.
//
#import "ViewController.h"
#implementation ViewController
// This can be removed as it is done automcatically for you.
//#synthesize webView;
- (void)viewDidLoad
{
// A call to the super must come first.
[super viewDidLoad];
// Construct a url request with the UUID string and pass it to the _webView
[_webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:[NSString stringWithFormat:#"http://app.aquapark-felix.ro/?email=%#",[[[[UIDevice currentDevice] identifierForVendor] UUIDString] substringToIndex:5]]]]];
}
- (BOOL) webView;(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
// Check whether the URL scheme is of "tel"
// "loc" will not open the apple maps app this code is done so it will.
if([request.URL.scheme isEqualToString:#"tel"] || [request.URL.absoluteString hasPrefix:#"http://maps.apple.com/?q"]) {
// We need to make sure we can actually open the urls that have been passed in.
// We do this for two reason 1) if we couldn't it would be a bad user experience
// and 2) you can't make calls on a iPod.
if([[UIApplication sharedApplication] canOpenURL:request.URL]) {
// Yes we can make a phone call so lets make it.
// Based on your number being formatted correctly if it's not then it will not work.
[[UIApplication sharedApplication] openURL:request.URL];
}
// If all else fails and we can't open the url just return no.
// I would recommend a UIAlertView here to tell the user.
return NO;
}
// As for exiting the app don't do this at all.
// Every other URL just return YES and continue with the Request.
return YES;
}
#end

Answer 2

If you're trying to get the URL Scheme (http, loc, tel etc)
- (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
//Catching URLs and telling the app what to do
if ([[[request URL] scheme] isEqualToString:#"tel"]) {
// Code
return NO;
}
return YES;
}
And so on for your other schemes.
This needs to go outside of viewDidload. See below.
// ViewController.m
// Aqua Park President
//
// Created by Alex Bonta on 7/13/14.
// Copyright (c) 2014 Aqua President. All rights reserved.
//
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
#synthesize webView;
- (void)viewDidLoad
{
// GET THE PHONE UDID
NSString *udid=[[[UIDevice currentDevice] identifierForVendor] UUIDString];
udid=[udid substringToIndex:5];
// Loading the url adress with the param of the uinique id
NSString *string = [NSString stringWithFormat:#"http://app.aquapark-felix.ro/?email=%#",udid];
NSURL *url = [NSURL URLWithString:string];
[webView loadRequest:[NSURLRequest requestWithURL:url]];
NSString *currentURL = webView.request.URL.absoluteString;
[super viewDidLoad];
}
- (BOOL) webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
//Catching URLs and telling the app what to do
if ([[[request URL] scheme] isEqualToString:#"tel"]) {
NSLog((#"ASA"));
return NO;
}
return YES;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end