मैं चार दिनचर्या है कि एक पाठ क्षेत्र के बन्द रखो के साथ सौदा किया है। इशारा पहचानकर्ता मूल दिनचर्या है। यह देखता है कि चयनित टेक्स्ट फ़ील्ड को स्क्रीन से पिन किया जा रहा है, मुझे वह नहीं चाहिए। यदि वे नहीं हैं, तो मैं इसे इशारा से पैमाने के साथ चुटकी करने के लिए कहता हूं। यदि कई चुने गए हैं तो मैं उन लोगों के लिए अधिसूचना भेजता हूं जो खुद को पिंच करने के लिए स्क्रीन बंद नहीं करेंगे।
//--------------------------------------------------------------------------------------------------------
// pinchElement
// Description: Called to di the element scale, in our case, we are adjusting the length.
//
//--------------------------------------------------------------------------------------------------------
- (void)pinchElement:(CGFloat)scale {
//Grab how big we are now
CGRect textFieldBounds = textField.bounds;
//Multiple the Scale of the Pinch by the Width to get our new width.
CGFloat newWidth = textFieldBounds.size.width * scale;
CGFloat widthChange = newWidth - textFieldBounds.size.width;
CGRect newBounds = CGRectMake(0, 0, newWidth, textFieldBounds.size.height);
[textField setBounds: newBounds];
[textField setCenter: CGPointMake(textField.center.x + widthChange/2, textField.center.y)] ;
[self contentSizeChanged];
}
//--------------------------------------------------------------------------------------------------------
// pinchOffScreen
// Description: Called to see if the Pinch Gesture will cause element to go off screen Gesture
//
//--------------------------------------------------------------------------------------------------------
- (BOOL)pinchOffScreen:(CGFloat)scale {
//Grab how big we are now
CGRect textFieldBounds = textField.bounds;
//Multiple the Scale of the Pinch by the Width to get our new width.
CGFloat newWidth = textFieldBounds.size.width * scale;
//Figure out our Change in Width so we can calculate our new Zen Center
CGRect newElementBounds = CGRectMake(0, 0, newWidth+ kElementFrameOffset*2 + kElementContentFrameOffset*2, textFieldBounds.size.height + kElementFrameOffset*2 + kElementContentFrameOffset*2);
//We want to be sure that we dont size beyond our bounds, find our Parent Origin.
CGRect elementBoundsInSuperView = [self convertRect:newElementBounds toView:[self superview]];
CGFloat xPosition = CGRectGetMidX(elementBoundsInSuperView);
CGFloat yPosition = CGRectGetMidY(elementBoundsInSuperView);
BOOL offScreen = [self calcOffEditorFromXposition:xPosition yPosition:yPosition fromBoundsInSuperView:elementBoundsInSuperView];
return offScreen;
}
//--------------------------------------------------------------------------------------------------------
// handlePinchGesture
// Description: Called when we get a Pinch Gesture
// We want to override the default scaling and set the width.
//
//--------------------------------------------------------------------------------------------------------
- (void)handlePinchGesture:(UIPinchGestureRecognizer *)gestureRecognizer {
if (IoUIDebug & IoUIDebugSelectorNames) {
NSLog(@"%@ - %@", INTERFACENAME, NSStringFromSelector(_cmd));
}
// UIView *element = [gestureRecognizer view];
if ([gestureRecognizer state] == UIGestureRecognizerStateBegan) {
//We are resizing, Select ourself
[self selectSelf];
}
if ([gestureRecognizer state] == UIGestureRecognizerStateBegan || [gestureRecognizer state] == UIGestureRecognizerStateChanged) {
NSSet *selectedElements = [[(IoScreenEditorViewController *)UIAppDelegate.ioMainViewController.currentViewController editorContentViewController] selectedElements];
BOOL aSelectedElementOffscreen = FALSE;
for (IoUIScreenElement* element in selectedElements) {
if ([element pinchOffScreen:[gestureRecognizer scale]]) {
aSelectedElementOffscreen = TRUE;
break;
}
}
if (!aSelectedElementOffscreen) {
[self pinchElement:[gestureRecognizer scale]];
// Let others know they are moving if they are selected
// Setup our data for the Notification
NSMutableDictionary *theUserInfo = [[[NSMutableDictionary alloc] initWithCapacity:1] autorelease];
[theUserInfo setObject:self forKey:@"ElementWithGesture"];
NSNumber * scaleAsNumber = [[NSNumber alloc] initWithFloat:[gestureRecognizer scale]];
[theUserInfo setValue:scaleAsNumber forKey:@"GestureScale"];
[theUserInfo setObject:gestureRecognizer forKey:@"TheGestureRecognizer"];
[scaleAsNumber release];
// Post the Group Rotation Notification.
[[NSNotificationCenter defaultCenter] postNotificationName:kNCSEGroupPinchGesture
object:nil
userInfo:theUserInfo];
}
[gestureRecognizer setScale:1];
}
if ([gestureRecognizer state] == UIGestureRecognizerStateEnded) {
}
}
//--------------------------------------------------------------------------------------------------------
// groupHandlePinchGesture:
// Description: For a groupPinch Notification. Move it! within bounds of course
//
//--------------------------------------------------------------------------------------------------------
- (void) groupHandlePinchGesture:(NSNotification*)notification{
if (IoUIDebug & IoUIDebugSelectorNames) {
NSLog(@"%@ - %@", INTERFACENAME, NSStringFromSelector(_cmd));
}
IoUIScreenElement *element = (IoUIScreenElement *) [[notification userInfo] objectForKey:@"ElementWithGesture"];
//UIRotationGestureRecognizer *gestureRecognizer = (UIRotationGestureRecognizer *) [[notification userInfo] objectForKey:@"TheGestureRecognizer"];
NSNumber *scaleAsNumber = [[notification userInfo] valueForKey:@"GestureScale"];
CGFloat scale = [scaleAsNumber floatValue];
if (IOFNOTEQUAL(self, element) & [self isSelected]){
[self pinchElement: scale];
}
}
आप निराश्रित UIPinchGestureRecognizers पर हमला नहीं करना चाहिए: पी –
@KennyTM Haha! अच्छा एक ... –
@ जोंगस्मा क्यों नहीं? यह उसे पहले चुरा लिया होगा! –