===============
.h
===============
#import <UIKit/UIKit.h>
@interface WebViewController : UIViewController
- (void) loadUrl:(NSURL*) url;
@end
===================
.m
===================
#import "WebViewController.h"
@interface WebViewController () < UIWebViewDelegate, UIActionSheetDelegate >
@property (nonatomic, retain) UIActivityIndicatorView *activityIndicator;
@property (nonatomic, retain) UIWebView *webView;
@property (nonatomic, retain) UIBarButtonItem *buttonForward;
@property (nonatomic, retain) UIBarButtonItem *buttonBackward;
- (IBAction)onClose:(id)sender;
- (IBAction)onBackward:(id)sender;
- (IBAction)onForward:(id)sender;
- (IBAction)onReload:(id)sender;
@end
@implementation WebViewController
@synthesize activityIndicator = _activityIndicator;
@synthesize webView = _webView;
@synthesize buttonForward = _buttonForward;
@synthesize buttonBackward = _buttonBackward;
- (void)loadView
{
// 툴바 사용
[self.navigationController setToolbarHidden:NO animated:YES];
// 화면 사이즈를 가져와서 네비게이션과 툴바의 사이즈만큼을 뺀
// webview가 보일 수 있는 영역을 구한다.
CGRect viewRect = self.navigationController.view.bounds;
if (! self.navigationController.isNavigationBarHidden) {
viewRect.size.height -= 44;
}
if (! self.navigationController.isToolbarHidden){
viewRect.size.height -= 44;
}
UIView *view = [[UIView alloc] initWithFrame:viewRect];
// Orientaion이 변경되도 화면을 꽉채울 수 있도록 설정
UIViewAutoresizing completeFlexibleFlag = UIViewAutoresizingFlexibleLeftMargin
| UIViewAutoresizingFlexibleLeftMargin
| UIViewAutoresizingFlexibleWidth
| UIViewAutoresizingFlexibleRightMargin
| UIViewAutoresizingFlexibleTopMargin
| UIViewAutoresizingFlexibleHeight
| UIViewAutoresizingFlexibleBottomMargin ;
[view setAutoresizingMask: completeFlexibleFlag];
UIWebView *webView = [[UIWebView alloc] initWithFrame:viewRect];
[webView setAutoresizingMask:completeFlexibleFlag];
webView.delegate = self;
self.webView = webView;
[view addSubview:webView];
self.view = view;
self.view.autoresizesSubviews = YES;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self.navigationController setNavigationBarHidden:NO animated:YES];
self.title = @"Loading.";
[self.view setBackgroundColor:[UIColor redColor]];
// 네비게이션 설정
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone
target:self
action:@selector(onClose:)];
UIActivityIndicatorView *activityIndicator = [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:activityIndicator];
self.activityIndicator = activityIndicator;
// 툴바 설정
UIBarButtonItem *btnBackward = [[UIBarButtonItem alloc] initWithTitle:@"◀\U0000FE0E"
style:UIBarButtonItemStylePlain
target:self
action:@selector(onBack:)];
UIBarButtonItem *btnForward = [[UIBarButtonItem alloc] initWithTitle:@"▶\U0000FE0E"
style:UIBarButtonItemStylePlain
target:self
action:@selector(onForward:)];
UIBarButtonItem *btnReload = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
target:self
action:@selector(onReload:)];
UIBarButtonItem *btnAction = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction
target:self
action:@selector(onAction:)];
UIBarButtonItem *space = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:nil
action:nil];
self.buttonBackward = btnBackward;
self.buttonForward = btnForward;
self.buttonBackward.enabled = NO;
self.buttonForward.enabled = NO;
self.toolbarItems = [[NSArray alloc] initWithObjects:space, btnBackward, space, btnForward, space, btnReload, space, btnAction, space, nil];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)viewDidUnload {
[self setWebView:nil];
[super viewDidUnload];
}
- (void) loadUrl:(NSURL*) url
{
[self.webView loadRequest:[[NSURLRequest alloc] initWithURL:url]];
}
#pragma mark - webview delegate
- (void)webViewDidStartLoad:(UIWebView *)webView
{
[self.activityIndicator startAnimating];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
self.buttonForward.enabled = webView.canGoForward;
self.buttonBackward.enabled = webView.canGoBack;
[self.activityIndicator stopAnimating];
self.title = [self.webView stringByEvaluatingJavaScriptFromString:@"document.title"];
}
#pragma mark - UIActionSheetDelegate handler
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 0 /* open in safari */) {
if( [[UIApplication sharedApplication] canOpenURL:self.webView.request.URL ]){
[[UIApplication sharedApplication] openURL:self.webView.request.URL];
}
}
}
#pragma mark - event handler
- (IBAction)onBackward:(id)sender{
[self.webView goBack];
}
- (IBAction)onForward:(id)sender{
[self.webView goForward];
}
- (IBAction)onReload:(id)sender{
[self.webView reload];
}
- (IBAction)onClose:(id)sender {
[self.navigationController setNavigationBarHidden:YES animated:YES];
[self.navigationController setToolbarHidden:YES animated:YES];
[self.navigationController popViewControllerAnimated:YES];
}
- (IBAction)onAction:(id)sender {
NSString* textCancel = @"Cancel";
NSString* textOpenSafari = @"Open in Safari";
UIActionSheet *acitonSheet = [[UIActionSheet alloc] initWithTitle:@""
delegate:self
cancelButtonTitle:textCancel
destructiveButtonTitle:textOpenSafari
otherButtonTitles:nil ];
[acitonSheet showFromToolbar:self.navigationController.toolbar];
}
@end
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