Hii Friends,
the application is that using a imageviewer of a which had placed a Ad at Bottom where when clicked will move to php registration page,when user closes the reg.View it will go back to imageviewer, as i using Three20UI Library for the PhotoViewer,
the code as follows,
-(void) actionCall {
if(isValue) {
NSLog(#"removeView from WEbview");
UIView *tmpView = (UIView *)[self.view viewWithTag:10];
[tmpView removeFromSuperview];
[custView removeFromSuperview];
isValue = FALSE;
}
if(changeViewSize == 1)
{
myView.frame = CGRectMake(0, 365, 360, 72);
}
}
[cusBtn addTarget:self action:#selector(actionCall) forControlEvents:UIControlEventTouchUpInside];
the program crashes when closebtn is clicked, Any Solutions Plz.
Try this:
-(void) actionCall:(id)sender {
...
[cusBtn addTarget:self action:#selector(actionCall:) forControlEvents:UIControlEventTouchUpInside];
Related
I am adding a button in UIScrollView in StoryBoard
Below is the code i am using.
-(void)addScrollView
{
for(int i=0;i<[array count];i++)
{
UIScrollView *subScrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 400, SUBSCROLLVIEW_WIDTH, SUBSCROLLVIEW_HEIGHT)];
UITextView *txtVwDetail = [[UITextView alloc] initWithFrame:CGRectMake(342, 0, TEXTVIEW_WIDTH, TEXTVIEW_HEIGHT)];
txtVwDetail.text = SAMPLE_STRING;
[self addSubScrollView:subScrollView];
[self.view addSubview:subScrollView];
[self.view addSubview:txtVwDetail];
}
}
-(void)addSubScrollView:(UIScrollView *)aSubScrollView
{
for(int i=0;i<[array count];i++)
{
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];
aButton.frame = CGRectMake(intBtnX, (aSubScrollView.frame.size.height - 80)/2, 50, 80);
[aButton setImage:[UIImage imageNamed:[self.items objectAtIndex:i]] forState:UIControlStateNormal];
**[aButton addTarget:self action:#selector(btnSubImageClicked) forControlEvents:UIControlEventTouchUpInside];**
aSubScrollView.contentSize = CGSizeMake(intScrollViewWidth, aSubScrollView.frame.size.height);
[aSubScrollView addSubview:aButton];
}
}
In addSubScrollView method I have added Button and its click event which is getting crashed.
-(void)btnSubImageClicked
{
NSLog(#"btnSubImageClicked");
}
I am having scenario as
MyMainViewController is the sourceViewController for my created customSegue which is the UIStoryboardSegue class
MyMainViewController having a UIView as PlaceHolderView in which I am adding MydestinationViewContoller's View which is this Scrollview
-(void)perform
{
BrowseScreenVC *srcObj = (BrowseScreenVC *)[self sourceViewController];
UIViewController *dstObj = (UIViewController *)[self destinationViewController];
for(UIView *vw in srcObj.viewPlaceHolder.subviews)
{
[vw removeFromSuperview];
}
NSLog(#"dest : %#",dstObj.view);
NSLog(#"destobj :%#",dstObj);
srcObj.currentViewController = dstObj;
[srcObj.viewPlaceHolder addSubview:[dstObj.view retain]];
}
UPDATE
With answer I also have to change the line
srcObj.currentViewController = dstObj;
to
srcObj.addChildViewController = dstObj;
to make it working
you have to add target as follow:
[aButton addTarget:self action:#selector(btnSubImageClicked:) forControlEvents:UIControlEventTouchUpInside];
#selector(), within these braces you have to provide the method that you want to perform. the ":" represents that the method has some argument. In this case the argument would be the button itself that is calling the method.
You have to implement your method then its signature would look like this
- (void)btnSubImageClicked:(id)sender{
// sender would be the button that is calling the method. you can use this object according to your requirements if you want.
// your code
}
if you want to call this method from somewhere else as well you can call it by passing sender argument nil. e.g [self btnSubImageClicked:nil];
Your action needs to accept an (id) sender argument, even if you are not using it:
-(void)btnSubImageClicked:(id) sender
{
NSLog(#"btnSubImageClicked");
}
In the addSubScrollView:
[aButton addTarget:self action:#selector(btnSubImageClicked:) forControlEvents:UIControlEventTouchUpInside];
Button target should like
-(void) btnSubImageClicked:(id)sender{}
try this.
Updated:-
Please correct your code,change this line
[aButton addTarget:self action:#selector(btnSubImageClicked:) forControlEvents:UIControlEventTouchUpInside];
Now working i checked.
Instead of
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeCustom];
write this,
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
and for better practice always write this,
-(void) btnSubImageClicked:(id)sender{}
In one of my app's user interfaces i want my app display a scrolling view(the count of the scrolled pages is dynamically set in runtime). But i want the to add UIWebView and UIView elements to the same array, so that when i scroll i will be able to display both UIWebView(let's say a web page) and some other View?
EDIT
I received this answer which looks as if exactly ok but doesn't work(or i couldn't to)
here is the code:
NSArray *myArray;
// Fill the array with a bunch of UIWebView and UIView objects here
for (id theObject in myArray)
{
if ([theObject isKindOfClass:[UIWebView class]]) {
// do stuff
}
else if ([theObject isKindOfClass:[UIView class]]) {
// do other stuff
}
}
Can anyone please give a hend of help? I need to create a scrollable array of views(like the main page of the iPhone) but the first page(mean, view) must be a member of UIWebView(the others are UIView)
And below is all my code(i han't try to do anything here:)
CGRect frame;
[webView initWithFrame:frame];
NSArray *colors = [NSArray arrayWithObjects:webView, [UIColor blackColor],[UIColor blackColor], nil];
for (int i = 0; i < colors.count; i++) {
CGRect frame;
frame.origin.x = self.scrollView.frame.size.width * i;
frame.origin.y = 0;
frame.size = self.scrollView.frame.size;
UIView *subview = [[UIView alloc] initWithFrame:frame];
subview.backgroundColor = [colors objectAtIndex:i];
[subview setTag:i];
if([subview tag]==2){
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
button.frame = CGRectMake(70.0f, 600.0f, 250.0f, 60);
[button setTitle:#"Read Messages" forState:UIControlStateNormal];
for(NSDictionary* buttonData in butDat) {
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
NSString* buttonTitle = [buttonData objectForKey:#"name"];
NSString* buttonID=[buttonData objectForKey:#"order_number"];
[button setTitle:buttonTitle forState:UIControlStateNormal];
[button setTag:[buttonID intValue]];
button.titleLabel.font=[UIFont systemFontOfSize:28];
CGFloat yPosition = 60.0f;
const CGFloat buttonHeight = 85.0f;
if (button.tag==1) {
button.frame = CGRectMake(70.0f, yPosition, 250.0f, buttonHeight);
//[ma.view addSubview:button];
}
if (button.tag==2) {
button.frame = CGRectMake(440.0f, yPosition, 250.0f, buttonHeight);
//[ma.view addSubview:button];
}
if (button.tag==3) {
button.frame = CGRectMake(70.0f, 200.0f, 250.0f, buttonHeight);
//[ma.view addSubview:button];
}
if (button.tag==4) {
button.frame = CGRectMake(440.0f, 200.0f, 250.0f, buttonHeight);
//[menu_2.view addSubview:button];//****
}
if (button.tag==5) {
button.frame = CGRectMake(70.0f, 335.0f, 250.0f, buttonHeight);
//[menu_2.view addSubview:button];//****
}
if (button.tag==6) {
button.frame = CGRectMake(440.0f, 335.0f, 250.0f, buttonHeight);
//[menu_2.view addSubview:button];//****
}
[button addTarget:self action:#selector(secondAct:) forControlEvents:UIControlEventTouchUpInside];
[scrollView addSubview:button];
}
//
[button addTarget:self action:#selector(readM:) forControlEvents:UIControlEventTouchUpInside];
// [scrollView addSubview:button];
[self.view addSubview:button];
// [self.scrollView addSubview:button];
}
[self.scrollView addSubview:subview];
There's nothing stopping you from adding objects of type UIWebView and UIView to the same NSArray.
If your code needs to know if you're dealing with a UIWebView or a UIView, you can use the method isKindOfClass: to check:
NSArray *myArray;
// Fill the array with a bunch of UIWebView and UIView objects here
for (id theObject in myArray)
{
if ([theObject isKindOfClass:[UIWebView class]]) {
// do stuff
}
else if ([theObject isKindOfClass:[UIView class]]) {
// do other stuff
}
}
Furthermore, UIWebView is a subclasses of UIView and inherits many of the same methods, making view layout the same in both cases.
From a user interface standpoint, it's probably bad practice to have scroll views inside scroll views, so you're going to want to disable scrolling of your UIWebView objects. If you are targeting iOS 5 and above you can use the following:
webView.scrollView.scrollEnabled = NO;
webView.scrollView.bounces = NO;
and if you're on a version of iOS lower than 5.0, you can inject the following javascript:
<script type="text/javascript">
touchMove = function(event) {
event.preventDefault();
}
</script>
To implement the javascript injection, you can use UIWebView's stringByEvaluatingJavaScriptFromString: method inside webViewDidFinishLoad:
See here for more information on UIWebView javascript injection: http://iphoneincubator.com/blog/windows-views/how-to-inject-javascript-functions-into-a-uiwebview
Edit: Looking at your code, it seems as thought you're sticking a UIWebView and two UIColor objects into your array. Therefore you need to check if you're dealing with a UIWebView or a UIColor, or you'll crash on subview.backgroundColor = [colors objectAtIndex:i]; Also you set your UIWebView object's frame to CGRect frame; which is uninitialized.
You should populate your NSArray with your UIWebView and then two UIView objects with their background colors set:
UIWebView *webView = [[UIWebView alloc] init];
UIView *viewOne = [[UIView alloc] init];
[viewOne setBackgroundColor:[UIColor blackColor]];
UIView *viewTwo = [[UIView alloc] init];
[viewTwo setBackgroundColor:[UIColor blackColor]];
NSArray *viewArray = [NSArray arrayWithObjects:webView, viewOne, viewTwo, nil];
for (id theObject in viewArray)
{
if ([theObject isKindOfClass:[UIWebView class]]) {
// do stuff
}
else if ([theObject isKindOfClass:[UIView class]]) {
// do other stuff
}
}
Yes. UIWebViews descend from UIViews. You may use them wherever you would insert a UIView as a subview, including within a UIScrollView parent view, or as an object to be inserted into an array.
Your scroll view is not scrolling because you didn't set the contentsize property. First you have to find the content size appropriately, and then you have to set content size as
[scrollView setContentSize:CGSize];
at the end of code. ie; after
[self.scrollView addSubview:subview];
For a blind try, use
[scrollView setContentSize:CGSizeMake(1000,1000)];
this will definitely scroll the view!!!
I m using a menu bar like this (using UIBUTTONS on an ImageView)
Now what I required to do is that when I click on each button a popover (subview) should come up like:
How can I do that?
My second question is that when i click on the same button or anywhere else on the view then the popover should get hide and if i click on another menu button popover should get hide from previous button and should be shown on other button...
My project is already created with UIviewcontroller, so i think it would be much difficult to include the tab bars
any help please ...
-(IBAction)buttonNotify:(id)sender{
popOver.frame = CGRectMake(173, 385, 88, 33);
[self.view addSubview:popOver];
}
In .h file of your ViewController declare
UIImageView *popupView`;
In .m file in initialisation initialise it, something like
popupView = [[UIImageView alloc] initWithImage:#"your_image.png"];
popUpView.frame = //some CGRect here//;
popUpView.hidden = YES;
[self.view addsubView:popupView];
[popupView release];
Also when you create your buttons you do it like this, yep?
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
btn.frame = //some CGRect here//;
btn.tag = 1; // here you can set numeric tag for all your buttons
[btn addTarget:self action:#selector(buttonHandler:)forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:btn];
[btn release]
And implement method
-(void)buttonHandler:(id)sender
{
//sender here is your button object
//so you can take it's tag or frame or something else to set frame of popupView
popUpView.frame = //some rect
popUpView.hidden = NO;
}
And you when you handle touch on your view, set
popupView.hidden = YES to hide it
Also you can add some animation.
menu1Btn.tag = 0;
menu2Btn.tag = 1;
....
-(IBAction)buttonNotify:(id)sender{
int tag = [sender tag];
[popOver removeFromSuperView];
if(tag ==0){
popOver.frame = CGRectMake(0, 385, 88, 33);
[self.view addSubview:popOver];
}
else if(tag ==1){
popOver.frame = CGRectMake(40, 385, 88, 33);
[self.view addSubview:popOver];
}
else if(tag ==2){
popOver.frame = CGRectMake(80, 385, 88, 33);
[self.view addSubview:popOver];
}
......
}
how do i make these buttons so that only one can be used at a time? Im not getting any errors right now when i run btw. Im just looking for a solution to my challenge. Thanks for any help
they are generated in a for loop like this:
for (int l=0; l<list.length; l++) {
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[aButton setTag:l];
CGRect buttonRect = CGRectMake(11+charact*20, -40 + line*50, 18, 21);
aButton.frame = buttonRect;
[aButton addTarget:self action:#selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[aButton setTitle:#" " forState:UIControlStateNormal];
[gameScroll addSubview:aButton];
}
And then the action for when a button is clicked is:
- (void) buttonClicked:(UIButton *)sender {
int tag = sender.tag;
if (sender.selected == TRUE) {
[sender setSelected:FALSE];
[sender setBackgroundColor:[UIColor clearColor]];
}
else if (sender.selected == FALSE) {
[sender setSelected:TRUE];
[sender setBackgroundColor:[UIColor redColor]];
}
}
right now everything works but i want it to know if theres already a button selected and deselect that other button, or else to automatically deselect any time the user clicks outside of the range of that button
thanks in advance
I would suggest to put all ur buttons to Array in your button initialisation
NSMutableArray* buttons = [NSMutableArray arrayWithCapacity: list.length];
for (int l=0; l<list.length; l++) {
UIButton *aButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[aButton setTag:l];
CGRect buttonRect = CGRectMake(11+charact*20, -40 + line*50, 18, 21);
aButton.frame = buttonRect;
[aButton addTarget:self action:#selector(buttonClicked:) forControlEvents:UIControlEventTouchUpInside];
[aButton setTitle:#" " forState:UIControlStateNormal];
[gameScroll addSubview:aButton];
[buttons addObject: aButton];
}
and every time buttonClicked triggered, then do your logic:
for (UIButton* button in buttons)
{
if (button != sender)
{
[button setSelected: FALSE];
[button setBackgroundColor:[UIColor redColor]];
}
}
int tag = sender.tag;
if (sender.selected == TRUE) {
[sender setSelected:FALSE];
[sender setBackgroundColor:[UIColor clearColor]];
}
else if (sender.selected == FALSE) {
[sender setSelected:TRUE];
[sender setBackgroundColor:[UIColor redColor]];
}
hope helps :)
You can store currently selected button in a separate variable and deselect it in buttonClicked: method:
- (void) buttonClicked:(UIButton *)sender {
int tag = sender.tag;
currentButton.selected = NO;
if (currentButton != sender){
currentButton = sender;
currentButton.selected = YES;
}
else{
currentButton = nil;
}
}
Also you can specify background colour for each state in button itself so you actually don't need to change it each time manually
If you also want to deselect your button when user just touches the screen you can implement touchesEnded:withEvent: in your view controller and reset currentButton in it (that method will get called if no other control intercept the touch event - so it may not be sufficient in all cases)
- (void)touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event{
currentButton.selected = NO;
currentButton = nil;
}
I've set up a Button and add it to a view. I want to add a "done" button to the UIKeyboardTypeNumberPad. Here's my code.
UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
doneButton.frame = CGRectMake(0, 163, 106, 53);
doneButton.adjustsImageWhenHighlighted = NO;
[doneButton setImage:[UIImage imageNamed:#"DoneUp.png"] forState:UIControlStateNormal];
[doneButton setImage:[UIImage imageNamed:#"DoneDown.png"] forState:UIControlStateHighlighted];
[doneButton addTarget:self action:#selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];
// locate keyboard view
UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
UIView* keyboard;
for(int i=0; i<[tempWindow.subviews count]; i++) {
keyboard = [tempWindow.subviews objectAtIndex:i];
// keyboard view found; add the custom button to it
if([[keyboard description] hasPrefix:#"<UIKeyboard"] == YES)
[keyboard addSubview:doneButton];
}
Everything works great until I want to remove the button if I've got a Kayboard of type NumbersAndPunctuation for example.
If I click the button I use [(UIButton)*sender removeFromSuperview];
to prevent memory leaks.
But how do I remove the button from within an other function?
Thanks a lot!
Some other guys did ask that question somewhere else but didn't get a answer. I'am sure you can help :)
// Where self is a UIView subclass
NSLog(#"subviews: %#",self.subviews);
for(id view in self.subviews ){
if ([view isKindOfClass:[UIButton class]]) {
NSLog(#"Removing a button!");
[view removeFromSuperview];
}
}
You should store a reference to the button, instead of using a local variable. For example:
Header file:
#interface myObject : NSObject {
UIButton *doneButton;
...
Implementation file:
doneButton = [UIButton buttonWithType: UIButtonTypeCustom
...
To remove it (assuming you're in the same object:
[doneButton removeFromSuperview];
However, Apple may not take kindly to you adding buttons to their keyboard.
you can declare your button in your .h file, so you will be able to get access from all class methods