WebView ベースのアプリで activityIndicator を実装する方法を知りたくて、次のコードを書きましたが、インジケーターが表示されません。
webview はファイルをローカルにロードするため、非常に高速にロードされますが、外部ページをロードするとロードが遅くなり、インジケータが必要です...
FirstViewController.h
#import <UIKit/UIKit.h>
@interface FirstViewController :
UIViewController <UIWebViewDelegate>{
IBOutlet UIWebView *webview1;
NSURL *urlLocation;
IBOutlet UIActivityIndicatorView *m_activity;
}
@property (nonatomic, retain) UIActivityIndicatorView *m_activity;
- (IBAction)searchbutton:(id)sender;
- (IBAction)home:(id)sender;
@end
FirstViewController.m
#import "FirstViewController.h"
@implementation FirstViewController
@synthesize m_activity;
// viewWillAppear loads every time younopen up this View
- (void)viewWillAppear:(BOOL)animated {
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
urlLocation = [NSURL fileURLWithPath:filePath];
[webview1 loadRequest:[NSURLRequest requestWithURL:urlLocation]];
}
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
//Initialization code
m_activity = nil;
}
return self;
}
- (void)webViewDidFinishLoad:(UIWebView *)webView {
m_activity.hidden= TRUE;
[m_activity stopAnimating];
NSLog(@"Web View started loading...");
}
- (void)webViewDidStartLoad:(UIWebView *)webView {
m_activity.hidden= FALSE;
[m_activity startAnimating];
NSLog(@"Web View Did finish loading");
}