首先，在app中呈现模态viewcontroller。 在modalview控制器中执行某些操作后，
调用dismissViewControllerAnimated，app崩溃了。 请帮助我:(
下面的是我在控制台中的异常日志
2014-10-01 18:05:42.508 mlink[569:232256] url - mfapp://navigation/dismissModal(GET)
2014-10-01 18:05:43.289 mlink[569:232256] viewDidAppear
2014-10-01 18:05:43.331 mlink[569:232256] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'An instance 0x14534c40 of class _UIWebViewScrollView was deallocated while key value observers were still registered with it. Current observation info: <NSKeyValueObservationInfo 0x146dfde0> (
<NSKeyValueObservance 0x146e9cd0: Observer: 0x146e1c20, Key path: contentOffset, Options: <New: YES, Old: NO, Prior: NO> Context: 0x0, Property: 0x145e5a30>
)'
*** First throw call stack:
(0x23f19e3f 0x315c7c8b 0x23f19d85 0x24bc2455 0x273b350f 0x27482fd5 0x273b5a87 0x275c1135 0x23e2126d 0x23e383bd 0x315e1d5f 0x315e21a9 0x23e2c3a9 0x23ede2ef 0x23e2c621 0x23e2c433 0x2b1db0a9 0x27417359 0xe1a45 0x31b47aaf)
libc++abi.dylib: terminating with uncaught exception of type NSException
下面是我的baseWebiewConntroller源
//
// MFBaseWebViewController.m
// ElandMobileFramework
//
// Created by subicura on 12. 2. 10..
// Copyright (c) 2012년 purpleworks. All rights reserved.
//
#import "MFBaseWebViewController.h"
#import "IIViewDeckController.h"
#import "PullToRefreshView.h"
#import "MFSettingHelper.h"
#import "MFUrlHelper.h"
#import "MFLocalizationHelper.h"
#import "MFColorHelper.h"
#import "SVProgressHUD.h"
#import "MFShellCoordinator.h"
#import "NSString+Extention.h"
@class WebFrame;
@interface UIWebView(JavaScriptAlert) <UITextFieldDelegate>
- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;
- (BOOL)webView:(UIWebView *)sender runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame;
- (NSString *)webView:(UIWebView *)sender runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WebFrame *)frame;
@end
@interface MFBaseWebViewController ()
- (void)initControls;
- (void)initWebView;
- (void)initSubView;
- (NSString *)getBlankPageScript;
- (void)willEnterForeground;
- (void)willEnterBackground;
@end
@implementation MFBaseWebViewController
static UIAlertView *webviewDialog;
@synthesize parent;
@synthesize webView;
@synthesize topSubView;
@synthesize bottomSubView;
@synthesize indicator;
@synthesize dispatchRouter;
@synthesize deviceOrientation;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
lastActiveTimestamp = 0;
isViewDidAppear = NO;
dispatchRouter = [[MFDispatchRouter alloc] initWithViewController:self];
deviceOrientation = [MFSettingHelper getValue:@"Orientation" defaultValue:@"portrait"];
self.webView = [[UIWebView alloc] init];
self.webView.tag = MF_BASE_UI_WEBVIEW_TAG;
self.indicator = [[UIActivityIndicatorView alloc] init];
self.indicator.tag = MF_BASE_UI_INDICATOR_VIEW_TAG;
self.topSubView = [[UIView alloc] init];
self.topSubView.tag = MF_BASE_UI_TOP_SUB_VIEW_TAG;
self.bottomSubView = [[UIView alloc] init];
self.bottomSubView.tag = MF_BASE_UI_BOTTOM_SUB_VIEW_TAG;
}
return self;
}
- (void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
deviceOrientation = [MFSettingHelper getValue:@"Orientation" defaultValue:@"portrait"];
if (![deviceOrientation isEqualToString:[[NSUserDefaults standardUserDefaults] valueForKey:@"deviceOrientation"]]) {
MFBaseWebViewController *temp = [[MFBaseWebViewController alloc] init];
[self presentModalViewController:temp animated:NO];
[temp dismissModalViewControllerAnimated:NO];
}
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
[[NSURLCache sharedURLCache] removeAllCachedResponses];
}
#pragma mark - View lifecycle
/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView
{
}
*/
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad
{
[super viewDidLoad];
if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
[self initWebView];
[self initControls];
[self initSubView];
}
- (void)viewDidUnload
{
[super viewDidUnload];
}
- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation
{
// NSString *deviceOrientation = [[NSUserDefaults standardUserDefaults] valueForKey:@"deviceOrientation"];
if ([deviceOrientation isEqualToString:@"both"] || [deviceOrientation isEqualToString:@"all"]) {
if(UIInterfaceOrientationIsLandscape(fromInterfaceOrientation)) {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.width - MF_SLIDE_LEFT_MENU_WIDTH;
} else {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.height - MF_SLIDE_LEFT_MENU_WIDTH;
}
}
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// NSString *deviceOrientation = [[NSUserDefaults standardUserDefaults] valueForKey:@"deviceOrientation"];
if ([deviceOrientation isEqualToString:@"all"]) {
if(UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.height - MF_SLIDE_LEFT_MENU_WIDTH;
} else {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.width - MF_SLIDE_LEFT_MENU_WIDTH;
}
return YES;
} else if ([deviceOrientation isEqualToString:@"portrait_all"]) {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.width - MF_SLIDE_LEFT_MENU_WIDTH;
return UIInterfaceOrientationIsPortrait(interfaceOrientation);
} else if ([deviceOrientation isEqualToString:@"landscape"]) {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.height - MF_SLIDE_LEFT_MENU_WIDTH;
return UIInterfaceOrientationIsLandscape(interfaceOrientation);
} else if ([deviceOrientation isEqualToString:@"both"]) {
if(UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.height - MF_SLIDE_LEFT_MENU_WIDTH;
} else {
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.width - MF_SLIDE_LEFT_MENU_WIDTH;
}
return UIInterfaceOrientationPortrait == interfaceOrientation || UIInterfaceOrientationIsLandscape(interfaceOrientation);
} else { // portrait
self.viewDeckController.leftLedge = [[UIScreen mainScreen] bounds].size.width - MF_SLIDE_LEFT_MENU_WIDTH;
return UIInterfaceOrientationPortrait == interfaceOrientation;
}
}
- (void)viewDidAppear:(BOOL)animated
{
[super viewDidAppear:animated];
// add observer app switching event
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(willEnterForeground)
name:UIApplicationWillEnterForegroundNotification
object:NULL];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(willEnterBackground)
name:UIApplicationWillResignActiveNotification
object:NULL];
if(isViewDidAppear == YES) { // 한번 로딩이 완료되었다면 새로 창을 보여줄때마다 함수 호출
NSLog(@"viewDidAppear");
time_t nowTimestamp = (time_t) [[NSDate date] timeIntervalSince1970];
long check = nowTimestamp - lastActiveTimestamp;
[self evalScript:[NSString stringWithFormat:@"if(viewDidAppear !== undefined) {viewDidAppear(%ld);}", check]];
} else {
isViewDidAppear = YES;
}
}
- (void)viewWillDisappear:(BOOL)animated
{
[super viewWillDisappear:animated];
lastActiveTimestamp = (time_t) [[NSDate date] timeIntervalSince1970];
// remove observer app switching event
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIApplicationWillEnterForegroundNotification
object:NULL];
[[NSNotificationCenter defaultCenter] removeObserver:self
name:UIApplicationWillResignActiveNotification
object:NULL];
}
- (void)willEnterForeground;
{
NSLog(@"willEnterForeground");
time_t nowTimestamp = (time_t) [[NSDate date] timeIntervalSince1970];
long check = nowTimestamp - lastActiveTimestamp;
[self evalScript:[NSString stringWithFormat:@"if(viewDidAppear !== undefined) {viewDidAppear(%ld);}", check]];
}
- (void)willEnterBackground;
{
NSLog(@"willEnterBackground");
lastActiveTimestamp = (time_t) [[NSDate date] timeIntervalSince1970];
// 로딩바 제거
[SVProgressHUD dismiss];
}
#pragma mark - init
- (void)initControls
{
// loading indicator
[self.indicator setActivityIndicatorViewStyle:UIActivityIndicatorViewStyleGray];
self.indicator.hidesWhenStopped = YES;
self.indicator.frame = CGRectMake(self.view.frame.size.width/2.0f-10.5f,
190,
21, 21);
[self.view addSubview:self.indicator];
//set view background color
self.view.backgroundColor = [MFColorHelper htmlHexColor:[MFSettingHelper getValue:@"WebViewBackgroundColor"]];
}
- (void)initWebView
{
// 웹뷰 설정
[self.webView setFrame:self.view.bounds];
[self.view addSubview:self.webView];
[self.webView setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
self.webView.delegate = self;
self.webView.scalesPageToFit = YES;
// 스크롤 뷰 속도 변경 및 그림자 없앰
[self.webView.scrollView setDecelerationRate:UIScrollViewDecelerationRateNormal];
UIView* lastView = [[self.webView.scrollView subviews] lastObject];
for(UIView *wview in [self.webView.scrollView subviews]) {
if([wview isKindOfClass:[UIImageView class]] && wview != lastView) {
wview.hidden = YES;
}
}
// 배경색 변경
self.webView.backgroundColor = [MFColorHelper htmlHexColor:[MFSettingHelper getValue:@"WebViewBackgroundColor"]];
}
- (void)initSubView
{
CGRect topFrame = self.view.bounds;
topFrame.size.height = 0;
[self.topSubView setFrame:topFrame];
[self.topSubView setAutoresizingMask:UIViewAutoresizingFlexibleBottomMargin];
[self.view addSubview:self.topSubView];
CGRect bottomFrame = self.view.bounds;
bottomFrame.origin.y = self.view.bounds.size.height;
bottomFrame.size.height = 0;
[self.bottomSubView setFrame:bottomFrame];
[self.bottomSubView setAutoresizingMask:UIViewAutoresizingFlexibleTopMargin];
[self.view addSubview:self.bottomSubView];
}
- (void)updateWebViewSize:(CGRect)frame subview:(UIView *)subview
{
CGRect webViewFrame = self.webView.frame;
webViewFrame.origin.x += frame.origin.x;
webViewFrame.origin.y += frame.origin.y;
webViewFrame.size.width += frame.size.width;
webViewFrame.size.height += frame.size.height;
self.webView.frame = webViewFrame;
CGRect subViewFrame = subview.frame;
subViewFrame.origin.y += frame.origin.y + frame.size.height;
subViewFrame.size.height -= frame.size.height;
[subview setFrame:subViewFrame];
}
- (NSString *)getBlankPageScript
{
return [NSString stringWithFormat:@"document.body.innerHTML = ''; document.body.style.backgroundColor = '%@';", [MFSettingHelper getValue:@"WebViewBackgroundColor"]];
}
#pragma mark - webview event
- (void)webViewDidStartLoad:(UIWebView *)webView
{
[self webViewLoadingStart];
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
[self webViewLoadingFinish];
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
if(error.code != -999 && error.code != 204 && error.code != 102) { // ignore operation couldn't be complete error
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Loading Error" message:[error localizedDescription] delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
[alert show];
NSLog(@"%@", error);
[self webViewLoadingFinish];
} else {
[self webViewLoadingFinish];
}
}
// dom load 직후, not full page load (images, etc..)
- (void)webViewDidFinishDomLoad
{
[self webViewLoadingFinish];
}
- (void)webViewLoadingStart
{
[self.webView setUserInteractionEnabled:NO];
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];
}
- (void)webViewLoadingFinish
{
[self.webView setUserInteractionEnabled:YES];
[[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
[(PullToRefreshView *)[self.view viewWithTag:999] finishedLoading]; // @see MFWebViewCoordinator
[indicator stopAnimating];
}
#pragma mark - WebViewDelegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)req navigationType:(UIWebViewNavigationType)navigationType
{
NSMutableURLRequest *request = (NSMutableURLRequest *)req;
// url check
NSString* url = [[request URL] absoluteString];
if(url.length <= 256) {
NSLog(@"url - %@(%@)", url, request.HTTPMethod);
} else {
NSLog(@"url - %@ ...xxx...(%@)", [url substringToIndex:256], request.HTTPMethod);
}
if ([url hasPrefix:@"http"] == YES ) {
NSArray *externalLinks = [MFSettingHelper getArrayValue:@"ExternalLink"];
for(int i=0; i<[externalLinks count]; i++) {
NSString *externalLink = [externalLinks objectAtIndex:i];
if([url contains:externalLink]) {
MFShellCoordinator *shellCoordinator = [[MFShellCoordinator alloc] init];
[shellCoordinator dispatchRoute:nil viewController:self];
[shellCoordinator callWebView:url disableMenu:NO];
return NO;
}
}
return YES;
} else if([url hasPrefix:@"file://"] == YES) { // local file 접근시 무조건 통과
return YES;
} else if([url hasPrefix:@"mfapp://"] == YES) { // dom load
MFUrlRoute *route = nil;
if([request.HTTPMethod isEqualToString:@"GET"]) {
route = [[MFUrlRoute alloc] initWithUrl:url];
} else {
route = [[MFUrlRoute alloc] initWithRequest:request];
}
return [dispatchRouter dispatch:route];
} else if ([[UIApplication sharedApplication] canOpenURL:[request URL]]) {
[[UIApplication sharedApplication] openURL:[request URL]];
return NO;
}
return YES;
}
#pragma mark - public method
- (void)loadUrl:(NSString *)url
{
[self loadUrl:url method:@"GET"];
}
- (void)loadUrl:(NSString *)url method:(NSString *)method
{
method = [method uppercaseString];
NSAssert([method isEqualToString:@"GET"] || [method isEqualToString:@"POST"] || [method isEqualToString:@"PUT"] || [method isEqualToString:@"DELETE"], @"method must GET or POST or PUT or DELETE");
[indicator startAnimating];
// 이미 url에 값은 전부 인코딩 된걸로 간주한다.
// NSString *escapedUrl = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
[self.webView stringByEvaluatingJavaScriptFromString:[self getBlankPageScript]];
NSURL *tmpURL = [NSURL URLWithString:url];
if(tmpURL == nil) {
tmpURL = [NSURL URLWithString:[url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];
}
NSMutableURLRequest *request = nil;
if([method isEqualToString:@"GET"]) {
request = [NSMutableURLRequest requestWithURL:tmpURL];
} else {
// GET이 아니면 url에서 parameter를 파싱하여 따로 전송
NSString *path = nil;
NSRange paramRange = [url rangeOfString:@"?"];
if(paramRange.length > 0) {
path = [url substringToIndex:paramRange.location];
request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
// add post parameter
//NSString *parameterString = [[[url substringFromIndex:paramRange.location + 1] stringByReplacingOccurrencesOfString:@"+" withString:@" "] stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSString *parameterString = [url substringFromIndex:paramRange.location + 1];
[request setHTTPBody:[parameterString dataUsingEncoding:NSUTF8StringEncoding]];
} else {
path = [NSString stringWithString:url];
request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:path]];
}
}
[request setHTTPMethod:method];
[self.webView loadRequest:request];
}
- (void)reloadUrl
{
[self reloadUrl:NO];
}
- (void)reloadUrl:(BOOL)init
{
if(init == YES) {
[indicator startAnimating];
[self.webView stringByEvaluatingJavaScriptFromString:[self getBlankPageScript]];
}
[self.webView reload];
}
- (void)evalScript:(NSString *)script
{
[self evalScript:script async:NO];
}
- (void)evalScript:(NSString *)script async:(BOOL)async
{
if(async == YES) {
[self.webView stringByEvaluatingJavaScriptFromString:[NSString stringWithFormat:@"setTimeout(function() {%@}, 1);", script]];
} else {
[self.webView stringByEvaluatingJavaScriptFromString:script];
}
}
#pragma - subview manage
- (void)addTopSubview:(UIView *)subview
{
[self removeSubview:subview.tag];
CGRect frame = subview.frame;
frame.origin.y = self.topSubView.frame.size.height;
[subview setFrame:frame];
[self updateWebViewSize:CGRectMake(0, subview.frame.size.height, 0, -subview.frame.size.height)
subview:self.topSubView];
[self.topSubView addSubview:subview];
}
- (void)addBottomSubview:(UIView *)subview
{
[self removeSubview:subview.tag];
CGRect frame = subview.frame;
frame.origin.y = 0;
[subview setFrame:frame];
[subview setAutoresizingMask:subview.autoresizingMask | UIViewAutoresizingFlexibleTopMargin];
[self updateWebViewSize:CGRectMake(0, 0, 0, -subview.frame.size.height)
subview:self.bottomSubView];
[self.bottomSubView addSubview:subview];
}
- (void)removeSubview:(NSInteger)tag
{
UIView *removeView = [self.view viewWithTag:tag];
if(removeView) {
int height = removeView.frame.size.height;
BOOL isTopSubview = (removeView.superview == self.topSubView);
BOOL isRemove = NO;
if(isTopSubview) {
for (UIView* subview in self.topSubView.subviews) {
if(subview == removeView) {
isRemove = YES;
[self updateWebViewSize:CGRectMake(0, -height, 0, height) subview:self.topSubView];
} else {
if(isRemove) {
CGRect frame = subview.frame;
frame.origin.y -= height;
subview.frame = frame;
}
}
}
} else {
for (UIView* subview in self.bottomSubView.subviews) {
if(subview == removeView) {
isRemove = YES;
[self updateWebViewSize:CGRectMake(0, 0, 0, height) subview:self.bottomSubView];
} else {
if(isRemove) {
CGRect frame = subview.frame;
frame.origin.y += height;
subview.frame = frame;
}
}
}
}
[[self.view viewWithTag:tag] removeFromSuperview];
}
}
- (void)removeAllSubViews
{
int height = 0;
for (UIView* subview in self.topSubView.subviews) {
height += subview.frame.size.height;
[subview removeFromSuperview];
}
[self updateWebViewSize:CGRectMake(0, -height, 0, height) subview:self.topSubView];
height = 0;
for (UIView* subview in self.bottomSubView.subviews) {
height += subview.frame.size.height;
[subview removeFromSuperview];
}
[self updateWebViewSize:CGRectMake(0, 0, 0, height) subview:self.bottomSubView];
}
@end
@implementation UIWebView (JavaScriptAlert)
BOOL diagStat;
- (NSString *)webView:(UIWebView *)sender runJavaScriptTextInputPanelWithPrompt:(NSString *)prompt defaultText:(NSString *)defaultText initiatedByFrame:(WebFrame *)frame
{
webviewDialog = [[UIAlertView alloc] initWithTitle:nil
message:prompt
delegate:self
cancelButtonTitle:[MFLocalizationHelper getAppleLocalizableLanguage:@"Cancel"]
otherButtonTitles:[MFLocalizationHelper getAppleLocalizableLanguage:@"OK"], nil];
webviewDialog.alertViewStyle = UIAlertViewStylePlainTextInput;
UITextField *alertViewSheetTextField = [webviewDialog textFieldAtIndex:0];
alertViewSheetTextField.delegate = self;
[alertViewSheetTextField setPlaceholder:defaultText];
[webviewDialog show];
//버튼 누르기전까지 지연.
while (webviewDialog.hidden == NO && webviewDialog.superview != nil) {
[[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
}
if (diagStat == YES) {
return alertViewSheetTextField.text;
} else {
return nil;
}
}
-(BOOL)textFieldShouldReturn:(UITextField *)textField{
[webviewDialog dismissWithClickedButtonIndex:0 animated:YES];
diagStat = YES;
return YES;
}
- (void)webView:(UIWebView *)sender runJavaScriptAlertPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame
{
while (webviewDialog.hidden == NO && webviewDialog.superview != nil) {
[[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
}
webviewDialog = [[UIAlertView alloc] initWithTitle:nil
message:message
delegate:nil
cancelButtonTitle:[MFLocalizationHelper getAppleLocalizableLanguage:@"OK"]
otherButtonTitles:nil];
[webviewDialog show];
}
- (BOOL)webView:(UIWebView *)sender runJavaScriptConfirmPanelWithMessage:(NSString *)message initiatedByFrame:(WebFrame *)frame
{
webviewDialog = [[UIAlertView alloc] initWithTitle:nil message:message delegate:self cancelButtonTitle:[MFLocalizationHelper getAppleLocalizableLanguage:@"Cancel"] otherButtonTitles:[MFLocalizationHelper getAppleLocalizableLanguage:@"OK"], nil];
[webviewDialog show];
//버튼 누르기전까지 지연.
while (webviewDialog.hidden == NO && webviewDialog.superview != nil) {
[[NSRunLoop mainRunLoop] runUntilDate:[NSDate dateWithTimeIntervalSinceNow:0.01f]];
}
return diagStat;
}
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{
if (buttonIndex == 0){
diagStat = NO;
} else if (buttonIndex == 1) {
diagStat = YES;
}
}
@end
下面是现有的模态方法
- (DispatchCallbackStatus)presentModal:(NSString *)url withTitle:(NSString *)title method:(NSString *)method
{
if (url == nil) {
return DispatchCallbackStatusParameterRequireException;
}
MFDetailViewController *viewController = [[MFDetailViewController alloc] initWithUrl:[MFUrlHelper getFullUrl:url
withUrl:self.currentViewController.webView.request.URL]
withTitle:title
method:method
parent:self.currentViewController];
UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:viewController];
UIBarButtonItem *navigationButton = [[UIBarButtonItem alloc] initWithTitle:NSLocalizedString(@"CLOSE_BUTTON", nil)
style:UIBarButtonItemStyleBordered
target:self
action:@selector(dismissModal)];
[viewController.navigationItem setLeftBarButtonItem:navigationButton];
// [[self.currentViewController navigationController] presentModalViewController:navigationController animated:YES];
[[self.currentViewController navigationController] presentViewController:navigationController animated:YES completion:nil];
return DispatchCallbackStatusOk;
}
下面是dimissmodal方法
- (DispatchCallbackStatus)dismissModal
{
if([self.currentViewController navigationController]) {
[[self.currentViewController navigationController] dismissViewControllerAnimated:YES completion:nil];
// [[self.currentViewController navigationController] dismissModalViewControllerAnimated:YES];
} else {
// [self.currentViewController dismissModalViewControllerAnimated:YES];
[self.currentViewController dismissViewControllerAnimated:YES completion:nil];
}
return DispatchCallbackStatusOk;
}
答案 0 :(得分：1)
我解决了问题...
问题是“istopped-PullToRefreshView”库。
我使用该库来刷新我的Web视图。 它是代表webview的scrollview。
PullToRefreshView *pull = [[PullToRefreshView alloc] initWithScrollView:currentScrollView];
[pull setDelegate:self];
pull.tag = MF_WEBVIEW_REFRESH_TAG;
[currentScrollView addSubview:pull];
所以， 当webview消失时，我会删除观察者。 然后，问题解决了!!!
@try{
[self removeObserver:self.webView.scrollView forKeyPath:@"contentOffset"];
[self removeObserver:self.webView.scrollView forKeyPath:@"contentSize"];
[self removeObserver:self.webView.scrollView forKeyPath:@"frame"];
}
@catch(id anException){
}