i building 1 iphone application have 2 views 1 login view , web view. when user enters login credentials, redirect web view. while loading webview login view time taking load. hence used alertview show loading image.
@interface focusviewcontroller () @end @implementation focusviewcontroller @synthesize txtsecurecode; @synthesize webview; @synthesize organizationcode; uiactivityindicatorview *indicator; uialertview *alert; - (void)viewdidload { [super viewdidload]; appdelegate = (focusappdelegate *)[[uiapplication sharedapplication]delegate]; if(appdelegate.data.strorganizationcode == nil || appdelegate.data.straccesscode == nil) { nslog(@"your first screen"); _loginview.hidden = no; webview.hidden = yes; } else { nslog(@"load webview directly\n"); nslog(@"organization code -> %@ \n secure access code -> %@",appdelegate.data.strorganizationcode,appdelegate.data.straccesscode); organizationcode.text = appdelegate.data.strorganizationcode ; txtsecurecode.text = appdelegate.data.straccesscode; [self loginclicked:nil]; webview.hidden = no; _loginview.hidden = yes; } } - (ibaction)loginclicked:(id)sender { @try { if([[txtsecurecode text] isequaltostring:@""] || [[organizationcode text] isequaltostring:@""] ) { [self alertstatus:@"please enter access code" :@"login failed!":0]; } else { nsstring *post =[[nsstring alloc] initwithformat:@"txtsecurecode=%@ @&password=%@",[txtsecurecode text],[organizationcode text]]; nsmutableurlrequest *request = [[[nsmutableurlrequest alloc] init] autorelease]; nsurl *url = [nsurl urlwithstring:[nsstring stringwithformat:@"http://myexample.com/accountservice/security/validateaccess?accesscode=%@&companycode=%@&type=1", txtsecurecode.text, organizationcode.text]]; nsstring *responsedata = [[nsstring alloc]initwithdata:[nsdata datawithcontentsofurl:url] encoding:nsutf8stringencoding]; if([responsedata isequaltostring:@""]){ [self alertstatus:@"please enter valid access code" :@"login failed !" :0]; } else { appdelegate.data.strorganizationcode = organizationcode.text; appdelegate.data.straccesscode = txtsecurecode.text; [focusappdelegate addcustomobjecttouserdefaults:appdelegate.data key:kcredentails]; //updated _loginview.hidden = yes; webview.hidden = no; responsedata = [responsedata stringbyreplacingoccurrencesofstring:@" "" " withstring:@""]; nsstring* encodedstring = [responsedata stringbyreplacingpercentescapesusingencoding:nsutf8stringencoding]; nslog(@"response ==> %@" ,encodedstring); alert = [[[uialertview alloc] initwithtitle:@"loading\nplease wait..." message:nil delegate:self cancelbuttontitle:nil otherbuttontitles: nil] autorelease]; [alert show]; uiactivityindicatorview *indicator = [[uiactivityindicatorview alloc] initwithactivityindicatorstyle:uiactivityindicatorviewstylewhite]; indicator.center = cgpointmake(alert.bounds.size.width / 2, alert.bounds.size.height - 50); [indicator startanimating]; [alert addsubview:indicator]; [indicator release]; webview.backgroundcolor = [uicolor clearcolor]; webview.opaque = no; webview.delegate = self; webview.frame = self.view.bounds; nsstring* urltwo = [[encodedstring stringbyaddingpercentescapesusingencoding:nsutf8stringencoding] stringbyreplacingoccurrencesofstring:@"%22" withstring:@""]; nsurl *url2; if([urltwo hasprefix:@"http://"]){ url2 = [nsurl urlwithstring:urltwo]; }else{ url2 = [nsurl urlwithstring:[nsstring stringwithformat:@"http://%@" , urltwo]]; } nslog(@"url2:%@", url2); nsurlrequest *requestobj = [nsurlrequest requestwithurl:url2]; [webview loadrequest:requestobj]; [[self view] addsubview:webview]; } } } @catch (nsexception * e) { nslog(@"exception: %@", e); [self alertstatus:@"login failed." :@"login failed!" :0]; } } -(void)webviewdidstartload:(uiwebview *)webview{ nslog(@"webviewdidstartload"); [self.view addsubview:self.indicator]; alert.hidden = no; } - (void) webviewdidfinishload:(uiwebview *)webview { nslog(@"webviewdidfinishload"); [self.indicator removefromsuperview]; [self.alert dismisswithclickedbuttonindex:1 animated:no] ; } - (ibaction)backgroundclick:(id)sender { [txtsecurecode resignfirstresponder]; [organizationcode resignfirstresponder]; } @end untill content in webview displays, loading image displaying , working good. content of webview not editable , remaining static think used 'web view.hidden = yes'. when comment alert method , run content of webview editable , working required. need load content of url after loading image stops loading. can me solve issue... in advance.
i suggest show activity indicator viewcontroller having webview , implement webview delegate methods
- (void)webviewdidstartload:(uiwebview *)webview { [actvityindicator startanimating]; } and
- (void)webviewdidfinishload:(uiwebview *)webview { [actvityindicator stopanimating]; } this keep webview interactive , show indicator till page loads completely
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