私はiPhone
開発者の初心者ですが、
私はepubリーダーを作成し、epubの各ページを自分webview
のportrait mode
webview.scalesPageToFit=TRUE;
しかし、横向きモードのページでアプリケーションが適切に収まっているのを見ると、スクロールすると発生するためswiperight gesture
、スクロールの終わりに達したときに追加して、ユーザーが次のページに移動できるようにしたいrightswipe
.
webviewがスクロールを完了したことを伝える方法はありますか?
_要するに、UIWebViewが上または下に到達したことを検出する方法は?_
前もって感謝します !
で書かれた編集 がロードされました:
swipeRight = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRightAction:)];
swipeRight.direction = UISwipeGestureRecognizerDirectionRight;
swipeRight.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeRight];
swipeLeft = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeLeftAction:)];
swipeLeft.direction = UISwipeGestureRecognizerDirectionLeft;
swipeLeft.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeLeft];
次に、各ページの読み込み中に、縦向きの場合は向きを確認し、横向きの場合は上下のジェスチャーをさらに2つ追加してから、上下のジェスチャーを削除します。
if([UIApplication sharedApplication].statusBarOrientation==UIInterfaceOrientationPortrait || [UIApplication sharedApplication].statusBarOrientation==UIInterfaceOrientationPortraitUpsideDown) {
swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeLeftAction:)];
swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
swipeUp.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeUp];
swipeDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRightAction:)];
swipeDown.direction = UISwipeGestureRecognizerDirectionDown;
swipeDown.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeDown];
counterPort++;
counterLand=0;
}
}
if (counterLand==0) {
if([UIApplication sharedApplication].statusBarOrientation==UIInterfaceOrientationLandscapeLeft || [UIApplication sharedApplication].statusBarOrientation==UIInterfaceOrientationLandscapeRight) {
[_webview removeGestureRecognizer:swipeDown];
[swipeDown release];
swipeDown=nil;
[_webview removeGestureRecognizer:swipeUp];
[swipeUp release];
swipeUp=nil;
counterPort=0;
counterLand++;
}
あなたの提案の後:
-(void)scrollViewDidScroll:(UIScrollView *)scrollView{
float scrollViewHeight = scrollView.frame.size.height;
float scrollContentSizeHeight = scrollView.contentSize.height;
float scrollOffset = scrollView.contentOffset.y;
if (scrollOffset == 0)
{
swipeUp = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeLeftAction:)];
swipeUp.direction = UISwipeGestureRecognizerDirectionUp;
swipeUp.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeUp];
}
else if (scrollOffset + scrollViewHeight == scrollContentSizeHeight)
{
swipeDown = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(swipeRightAction:)];
swipeDown.direction = UISwipeGestureRecognizerDirectionDown;
swipeDown.delegate = (id<UIGestureRecognizerDelegate>)self;
[_webview addGestureRecognizer:swipeDown];
}
}