我有一个完全可操作的Web浏览器应用程序,用于存储书签页面 . 单击书签按钮时,将显示存储的网站的列表视图 . 我希望listview显示页面的 Headers ,而不是显示URL,但我希望UIWebView在单击 Headers 时转到URL .
我已经包含了以下代码 . 我还将属性放在两个头文件中,但无法使其工作 . 请帮忙!
ExplorerViewController.h
#import <UIKit/UIKit.h>
@interface ExplorerViewController : UIViewController <UITextFieldDelegate, UIWebViewDelegate, UIActionSheetDelegate>{
UITextField *urlField;
UIBarButtonItem *refreshButton;
UIBarButtonItem *backButton;
UIBarButtonItem *forwardButton;
UIBarButtonItem *bookMarksButton;
UIActivityIndicatorView *loadingActivity;
UIWebView *webView;
UINavigationBar *navigationBar;
}
@property (nonatomic, retain) IBOutlet UITextField *urlField;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *refreshButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *backButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *forwardButton;
@property (nonatomic, retain) IBOutlet UIBarButtonItem *bookMarksButton;
@property (nonatomic, retain) IBOutlet UIActivityIndicatorView *loadingActivity;
@property (nonatomic, retain) IBOutlet UIWebView *webView;
@property (nonatomic, retain) IBOutlet UINavigationBar *navigationBar;
-(NSString*)repairURL:(NSString*)url;
-(IBAction)refreshWebView;
-(IBAction)goBack;
-(IBAction)goForward;
-(void)actualizeButtons;
-(IBAction)bookmarksButtonTapped;
-(IBAction)addBookmarkButtonTapped;
@end
ExplorerViewController.m
-(void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
if (buttonIndex == 0) {
NSMutableArray *bookmarks = [[[NSUserDefaults standardUserDefaults] arrayForKey:@"Bookmarks"] mutableCopy];
NSMutableArray *websitetitle = [[[NSUserDefaults standardUserDefaults] arrayForKey:@"Websitetitle"] mutableCopy];
if (!bookmarks) {
bookmarks = [[NSMutableArray alloc] init];
}
[bookmarks addObject:[[[[self webView]request] URL] absoluteString]];
[websitetitle addObject:[self.webView stringByEvaluatingJavaScriptFromString:@"document.title"]];
[[NSUserDefaults standardUserDefaults] setObject:bookmarks forKey:@"Bookmarks"];
[[NSUserDefaults standardUserDefaults] setObject:websitetitle forKey:@"Websitetitle"];
[bookmarks release];
[websitetitle release];
}
}
BookmarksViewController.h
#import <UIKit/UIKit.h>
@class ExplorerViewController;
@interface BookmarksViewController : UIViewController <UITableViewDelegate, UITableViewDataSource>{
NSMutableArray *bookmarks;
NSMutableArray *websitetitle;
ExplorerViewController *explorerView;
}
@property (nonatomic, retain) NSMutableArray *bookmarks;
@property (nonatomic, retain) NSMutableArray *websitetitle;
@property (nonatomic, retain) ExplorerViewController *explorerView;
-(IBAction)cancelButtonTapped;
@end
BookmarksViewController.m
#import "BookmarksViewController.h"
#import "ExplorerViewController.h"
@implementation BookmarksViewController
@synthesize bookmarks, websitetitle, explorerView;
-(IBAction)cancelButtonTapped {
[self.parentViewController dismissModalViewControllerAnimated:true];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [bookmarks count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:cellIdentifier] autorelease];
}
cell.textLabel.text = [websitetitle objectAtIndex:indexPath.row];
return cell;
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
explorerView.urlField.text = [bookmarks objectAtIndex:indexPath.row];
[explorerView textFieldShouldReturn:explorerView.urlField];
[self.parentViewController dismissModalViewControllerAnimated:true];
}
-(void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
if (editingStyle == UITableViewCellEditingStyleDelete) {
[bookmarks removeObjectAtIndex:indexPath.row];
[tableView deleteRowsAtIndexPaths:[NSArray arrayWithObjects:indexPath, nil] withRowAnimation:UITableViewRowAnimationFade];
[[NSUserDefaults standardUserDefaults] setObject:bookmarks forKey:@"Bookmarks"];
}
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)dealloc
{
[super dealloc];
// e.g. self.myOutlet = nil;
[explorerView release];
explorerView = nil;
[bookmarks release];
bookmarks = nil;
}
1 回答
你必须实现
tableView:didSelectRowAtIndexPath:
,大致如下:关于代码的一些注意事项:
你想复制Mobile Safari吗?
您应该避免将书签存储在NSUserDefaults存储中,并使用正确的商店 .
你不应试图通过模拟交互事件来触发导航动作;创建UIWebView(您的底层浏览器对象)加载网页的正确方法是使用
loadRequest:
以下代码可能适合您(我在这里依赖于很多假设):