I have used following code
for (UIView *view in [volumeView subviews]){
if ([[[view class] description] isEqualToString:#"MPVolumeSlider"]) {
volumeViewSlider = (UISlider *) view;
}
}
//[volumeViewSlider setBackgroundColor:[UIColor colorWithRed:1.00 green:0.0 blue:0.0 alpha:1.0]];
UIImage *stetchLeftTrack = [[UIImage imageNamed:#"leftslide.png"]
stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
UIImage *stetchRightTrack = [[UIImage imageNamed:#"rightslide.png"]
stretchableImageWithLeftCapWidth:10.0 topCapHeight:0.0];
// [customSlider setThumbImage: [UIImage imageNamed:#"slider_ball.png"] forState:UIControlStateNormal];
[volumeViewSlider setMinimumTrackImage:stetchLeftTrack forState:UIControlStateNormal];
[volumeViewSlider setMaximumTrackImage:stetchRightTrack forState:UIControlStateNormal];
[volumeViewSlider setMinimumValueImage:[UIImage imageNamed:#"SpeakerSoft.tif"]];
[volumeViewSlider setMaximumValueImage:[UIImage imageNamed:#"SpeakerLoud.tif"]];
[NSTimer scheduledTimerWithTimeInterval:60.0 target:self selector:#selector(changeTheTimer) userInfo:nil repeats:NO];
}
-(void)changeTheTimer{
[volumeViewSlider setValue:0 animated:YES];
NSLog(#"Value is set to 0");
}
I want to stop all playbacks after one minute , but slider moves to zero and leaves of effect of master volume.
You can certainly make use of the UISlider instance method
- (void)setValue:(float)value animated:(BOOL)animated
This will reduce the slider value with or without animation.
UPDATE
Check this link on Controlling Master Volume
Related
I am created two buttons that are right next to each other to mimic a segmented control. I am doing this to customize the appearance beyond what the UIKit allows. I decided to use the selected property to keep a button pressed. I have two images that one for each state normal and selected.
The problem is that when I select a button, the button highlights and turns dark, because of the hightlight state. I decided to use the selected image for the highlight state too, but it flashes, any ideas or suggestions.
- (void)leftSegmentPressed:(id)sender
{
if ([sender isSelected]) {
[sender setSelected:NO];
}
else {
[sender setSelected:YES];
}
}
For the "selected" button, disable it and manually switch the image for the state.
- (void) viewDidLoad
{
[rightSegmentButton setImage:[UIImage imageNamed:#"unselected.png"] forState:UIControlStateNormal];
[rightSegmentButton setImage:[UIImage imageNamed:#"selected.png"] forState:UIControlStateDisabled];
[leftSegmentButton setImage:[UIImage imageNamed:#"unselected.png"] forState:UIControlStateNormal];
[leftSegmentButton setImage:[UIImage imageNamed:#"selected.png"] forState:UIControlStateDisabled];
}
- (void)leftSegmentPressed:(id)sender
{
sender.enabled = NO;
rightSegmentButton.enabled = YES;
}
- (void)rightSegmentPressed:(id)sender
{
sender.enabled = NO;
leftSegmentButton.enabled = YES;
}
Check whether the image you given is in your Bundle or check image name you given is in lower case or not. Then write like
[button1 setImage:[UIImage imageNamed:#"normal1.png"] forState:UIControlStateNormal];
[button1 setImage:[UIImage imageNamed:#"selected1.png"] forState:UIControlStateSelected];
[button2 setImage:[UIImage imageNamed:#"normal2.png"] forState:UIControlStateNormal];
[button2 setImage:[UIImage imageNamed:#"selected2.png"] forState:UIControlStateSelected];
button1.tag = 1;
button2.tag = 2;
[button1 addTarget:self action:#selector(buttonSelected:) forControlEvents:UIControlEventTouchUpInside]
[button2 addTarget:self action:#selector(buttonSelected:) forControlEvents:UIControlEventTouchUpInside]
in your button event method
-(void)buttonSelected:(id)sender {
if([sender tag] == 1) {
button1.selected = YES;
button2.selected = NO;
} else {
button1.selected = NO;
button2.selected = YES;
}
}
[button setAdjustsImageWhenHighlighted:NO];
This will prevent the flicker.
UIButton *yourButton1 = [[UIButton buttonWithType:UIButtonTypeRoundedRect] retain];
yourButton1.frame = CGRectMake(110.0, 360.0, 100.0, 30.0);
[yourButton1 setTitle:#"Left" forState:UIControlStateNormal];
yourButton.backgroundColor = [UIColor clearColor];
yourButton1.tag = 1;
[yourButton1 setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal ];
UIImage *buttonImageNormal = [UIImage imageNamed:#"yourNormalImage.png"];// set normal image
UIImage *strechableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[yourButton1 setBackgroundImage:strechableButtonImageNormal forState:UIControlStateNormal];
UIImage *buttonImagePressed = [UIImage imageNamed:#"yourSelectedImage.png"];// set selected image
UIImage *strechableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[yourButton1 setBackgroundImage:strechableButtonImagePressed forState:UIControlStateHighlighted];
[yourButton1 addTarget:self action:#selector(leftSegmentPressed:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:yourButton1];
do same for another second button.
and in action method set bellow code..
- (void)leftSegmentPressed:(id)sender
{
UIButton *btnTemp = (UIBUtton *)sender;
if (btnTemp.tag == 1) {
[yourButton1 setSelected:YES];
[yourButton2 setSelected:NO];
}
else {
[yourButton1 setSelected:NO];
[yourButton2 setSelected:YES];
}
}
I have created a AVFoundation Camera,now i want to change toolbar item image to my custom image , when user tap record camera button than image will change.
I have done that change but problem is that my image display black and white no color.soplz help on this.
My code is:
- (void)viewDidLoad
{
[[self recordButton] setImage:[UIImage imageNamed:#"camara30.png"]] //first time setting image
}
- (void)captureManagerRecordingBegan:(AVCamCaptureManager *)captureManager
{
CFRunLoopPerformBlock(CFRunLoopGetMain(), kCFRunLoopCommonModes, ^(void) {
// [[self recordButton] setTintColor:[UIColor redColor]];
[[self recordButton] setImage:[UIImage imageNamed:#"record30.png"]]; //changing image when record begun
[[self recordButton] setEnabled:YES];
});
}
- (void)captureManagerRecordingFinished:(AVCamCaptureManager *)captureManager
{
CFRunLoopPerformBlock(CFRunLoopGetMain(), kCFRunLoopCommonModes, ^(void) {
[[self recordButton] setImage:[UIImage imageNamed:#"camara30.png"]]; //changing image when record end
[[self recordButton] setEnabled:YES];
});
}
My first screen before start recording:
My second screen after end recording:
UIBarButtonItem *temp = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:[UIImage imageNamed:#"BlueMarbleDrop"] forState:UIControlStateNormal];
button.frame=CGRectMake(0.0, 0.0, 60.0, 30.0);
[button addTarget:self action:nil forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem* stopBtn = [[UIBarButtonItem alloc] initWithCustomView:button];
[self.toolBar setItems:[NSArray arrayWithObjects:temp,stopBtn,temp, nil]];
the output look like
i took this from UIBarButtonItem with color?
Try to set image
[[self recordButton] setImage:[UIImage imageNamed:#"record30.png"] forState:UIControlStateNormal];
Well, I have a custom uitabbarcontroller with 3 UIButtons on it (simulating tabs). I have set background images for normal, selected and highlighted states (selected and highlighted are both the same).
Everything works fine but one thing: When I have on tab (button) selected, and that tab gets pressed again, instead of highlighting it shows the button being pressed (getting darker). I have tried setting to NO the property adjustsImageWhenHighlighted, but instead of getting darker, it shows the Normal state background.
Any suggestion?
EDIT: This is the code I have in the UITabBarController subclass
#import "MyTabBarViewController.h"
#interface MyTabBarViewController ()
#end
#implementation MyTabBarViewController
ExploreViewController *exploreController;
ProfileViewController *profileController;
UIButton* leftButton;
UIButton* rightButton;
- (void)viewDidLoad
{
[super viewDidLoad];
exploreController = [[ExploreViewController alloc] initWithNibName:#"ExploreViewController" bundle:nil];
profileController = [[ProfileViewController alloc] initWithNibName:#"ProfileViewController" bundle:nil];
self.viewControllers = [NSArray arrayWithObjects:exploreController, profileController, nil];
[self addLeftButtonWithImage: [UIImage imageNamed:#"LeftTabBarIcon"] highlightImage:[UIImage imageNamed:#"LeftTabBarIcon_On"]];
[self addRightButtonWithImage: [UIImage imageNamed:#"RightTabBarIcon"] highlightImage:[UIImage imageNamed:#"RightTabBarIcon_On"]];
}
- (void) leftTabPressed
{
leftButton.selected = YES;
rightButton.selected = NO;
[self setSelectedViewController:exploreController];
}
- (void) rightTabPressed
{
rightButton.selected = YES;
leftButton.selected = NO;
[self setSelectedViewController:profileController];
}
-(void) addLeftButtonWithImage:(UIImage*)buttonImage highlightImage:(UIImage*)highlightImage
{
leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
leftButton.adjustsImageWhenHighlighted = NO;
[[leftButton imageView] setContentMode: UIViewContentModeScaleAspectFit];
[leftButton setBackgroundImage:buttonImage forState:UIControlStateNormal];
[leftButton setBackgroundImage:highlightImage forState:UIControlStateHighlighted];
[leftButton setBackgroundImage:highlightImage forState:UIControlStateSelected];
leftButton.frame = CGRectMake(0.0, 367, 160.0, 49.0);
[leftButton addTarget:self action:#selector(leftTabSelectPressed) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:leftButton];
}
-(void) addRightButtonWithImage:(UIImage*)buttonImage highlightImage:(UIImage*)highlightImage
{
rightButton = [UIButton buttonWithType:UIButtonTypeCustom];
rightButton.adjustsImageWhenHighlighted = NO;
[[rightButton imageView] setContentMode: UIViewContentModeScaleAspectFit];
[rightButton setBackgroundImage:buttonImage forState:UIControlStateNormal];
[rightButton setBackgroundImage:highlightImage forState:UIControlStateHighlighted];
[rightButton setBackgroundImage:highlightImage forState:UIControlStateSelected];
rightButton.frame = CGRectMake(160.0, 367, 160.0, 49.0);
[rightButton addTarget:self action:#selector(rightTabPressed) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:rightButton];
}
#end
For your Comment your code will be like this:
-(void) addRightButtonWithImage:(UIImage*)buttonImage highlightImage:(UIImage*)highlightImage
{
rightButton = [UIButton buttonWithType:UIButtonTypeCustom];
rightButton.adjustsImageWhenHighlighted = NO;
rightButton.showsTouchWhenHighlighted = NO;
[[rightButton imageView] setContentMode: UIViewContentModeScaleAspectFit];
[rightButton setBackgroundImage:buttonImage forState:UIControlStateNormal];
[rightButton setBackgroundImage:highlightImage forState:UIControlStateHighlighted | UIControlStateSelected];
[rightButton setBackgroundImage:highlightImage forState:UIControlStateSelected];
rightButton.frame = CGRectMake(160.0, 367, 160.0, 49.0);
[rightButton addTarget:self action:#selector(rightTabPressed) forControlEvents:UIControlEventTouchUpInside];
UILongPressGestureRecognizer *longGesture = [[[UILongPressGestureRecognizer alloc] initWithTarget:self action:#selector(longGestureDetected:)]autorelease];
longGesture.delaysTouchesBegan = YES;
[rightButton addGestureRecognizer:longGesture];
[self.view addSubview:rightButton];
}
- (void)longGestureDetected:(UILongPressGestureRecognizer*)longGesture
{
if(longGesture.state == UIGestureRecognizerStateBegan)
[self rightTabPressed];
}
Trick seemed to be changing UIControlStateHighlighted to UIControlStateHighlighted | UIControlStateSelected. Seems odd, but it works.
When you tap on a UIBarButtonItem in a UIToolbar, there is a white glow effect.
Is there a possibility to fire an event to show this effect?
I don't want to press the button. Only the effect should be displayed. I want to visualize to the user, that there is new content behind this button.
Thanks for your help!
Heres the "highlight.png", I'm not kidding! (Though you may not seeing it on a white background.)
The following method assumes you are using the toolbarItems property of a navigation controller and that the button you want to highlight is the last item in that array. You can apply it to any toolbar, of course, and pick a different array index if necessary.
Right now this is not exactly perfect, because the animation moves the new button from the lower left of the screen. However, I think that can be turned off with a little effort.
Note that I used PeakJi's image.
I hope this works for you.
Enjoy,
Damien
- (void)highlightButton {
NSArray *originalFooterItems = self.toolbarItems;
NSMutableArray *footerItems = [originalFooterItems mutableCopy];
[footerItems removeLastObject];
NSString* pathToImageFile = [[NSBundle mainBundle] pathForResource:#"white_glow" ofType:#"png"];
UIImage* anImage = [UIImage imageWithContentsOfFile:pathToImageFile];
UIImageView *imageView = [[UIImageView alloc] initWithImage:anImage];
imageView.frame = CGRectMake(0, 0, 40, 40);
UIBarButtonItem *flashImage = [[UIBarButtonItem alloc] initWithCustomView:imageView];
[footerItems addObject:flashImage];
[UIView animateWithDuration:0.3
delay: 0.0
options: UIViewAnimationOptionCurveEaseOut
animations:^{
self.toolbarItems = footerItems; }
completion:^(BOOL finished){
[UIView animateWithDuration:.3
delay: 0.0
options:UIViewAnimationOptionCurveEaseIn
animations:^{
self.toolbarItems = originalFooterItems;
}
completion:nil];
}];
}
For Bar items
[(UIButton *)[[toolbarItems objectAtIndex:1] customView] setImage:[UIImage imageNamed:#"highlight.png"] forState:UIControlStateNormal];
In General - Assuming you have a button
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:#selector(someFunction:)
forControlEvents:UIControlEventTouchDown];
[button setTitle:#"Click here" forState:UIControlStateNormal];
button.frame = CGRectMake(0.0, 0.0, 100.0, 40.0);
[self.view addSubview:button];
you can at any given point, programmatically call this function:
[button setTitle:#"Look Here" forState:UIControlStateNormal];
or if you like to have an highlight image
btnImage = [UIImage imageNamed:#"highlight.png"];
[button setImage:btnImage forState:UIControlStateNormal];
A very simple alternative:
That said , you can also set the button like this:
- (void)highlightButton:(UIButton *)button {
[button setHighlighted:YES];
}
You can try to recreate a new bar button item with different style, and then reassign it back. My experiment was:
In viewDidLoad:
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem *rightBtn = [[UIBarButtonItem alloc] initWithTitle:#"Custom"
style:UIBarButtonItemStylePlain
target:self
action:nil];
self.navigationItem.rightBarButtonItem = rightBtn;
[rightBtn release];
[self performSelector:#selector(highlight)
withObject:nil
afterDelay:2.0];
}
And in method highlight:
- (void) highlight{
UIBarButtonItem *rightBtn = [[UIBarButtonItem alloc] initWithTitle:#"Custom"
style:UIBarButtonItemStyleDone
target:self
action:nil];
self.navigationItem.rightBarButtonItem = rightBtn;
[rightBtn release];
}
Your implementation might be different than mine, but as long as you are fine with reassigning the bar button, I think it'll work as expected. Good luck :)
If you have a category:
#define HIGHLIGHT_TIME 0.5f
#interface UIButton (Highlight)
- (void)highlight;
#end
#implementation UIButton (Highlight)
- (void)highlight {
UIButton *overlayButton = [UIButton buttonWithType:UIButtonTypeCustom];
overlayButton.frame = self.frame;
overlayButton.showsTouchWhenHighlighted = YES;
[self.superview addSubview:overlayButton];
overlayButton.highlighted = YES;
[self performSelector:#selector(hideOverlayButton:) withObject:overlayButton afterDelay:HIGHLIGHT_TIME];
}
- (void)hideOverlayButton:(UIButton *)overlayButton {
overlayButton.highlighted = NO;
[overlayButton removeFromSuperview];
}
#end
Then you need code like this…
UIBarButtonItem *addButton = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:#selector(insertNewObject:)] autorelease];
self.navigationItem.rightBarButtonItem = addButton;
[self.navigationController.navigationBar.subviews.lastObject performSelector:#selector(highlight) withObject:nil afterDelay:2];
…to highlight the button in the navigation bar after 2 seconds.
A simple ay is to init your UIBarButtonItem with a CustomView (UIBUtton)
UIButton *favButton = [UIButton buttonWithType:UIButtonTypeCustom];
[favButton setFrame:CGRectMake(0.0, 100.0, 50.0, 30.0)];
[favButton setBackgroundImage:[UIImage imageNamed:#"bouton_black_normal.png"]
forState:UIControlStateNormal];
[favButton setBackgroundImage:[UIImage imageNamed:#"bouton_black_hightlight.png"]
forState:UIControlStateHighlighted];
[favButton setTitle:#"Add" forState:UIControlStateNormal];
[favButton setTitle:#"Add" forState:UIControlStateHighlighted];
[favButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
[favButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[[favButton titleLabel] setFont:[UIFont boldSystemFontOfSize:13]];
[favButton addTarget:self action:#selector(doSomething)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithCustomView:favButton];
I tried to add reflection to my icarousel. Firstly my code was like this and it was working wright.
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(UIView *)view
{
UIButton* button = (UIButton *)view;
if (button == nil)
{
//no button available to recycle, so create new one
UIImage *image = [arrKitapKapaklari objectAtIndex:index];
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);
[button setTitleColor:[UIColor clearColor] forState:UIControlStateNormal];
[button setBackgroundImage:image forState:UIControlStateNormal];
button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
[button addTarget:self action:#selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
}
//set button label
[button setTitle:[NSString stringWithFormat:#"%i", index] forState:UIControlStateNormal];
return button;
}
After changing, my code became like this:
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(ReflectionView *)view
{
UIButton* button = nil;
if (button == nil)
{
view = [[[ReflectionView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 150.0f, 200.0f)] autorelease];
//no button available to recycle, so create new one
UIImage *image = [arrKitapKapaklari objectAtIndex:index];
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0.0f, 0.0f, image.size.width, image.size.height);
[button setTitleColor:[UIColor clearColor] forState:UIControlStateNormal];
[button setBackgroundImage:image forState:UIControlStateNormal];
button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
[button addTarget:self action:#selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
[view addSubview:button];
}
//set button label
[button setTitle:[NSString stringWithFormat:#"%i", index] forState:UIControlStateNormal];
[view update];
return view;
}
Reflection appears. But the problem is when i move the carousel view, images not flowing correctly. Sometimes another carousel view appears.
Do you have any idea what causes that?
Code should be:
- (UIView *)carousel:(iCarousel *)carousel viewForItemAtIndex:(NSUInteger)index reusingView:(ReflectionView *)view
{
UIButton* button = nil;
if (view == nil)
{
//no view available to recycle, so create new one
view = [[[ReflectionView alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 150.0f, 200.0f)] autorelease];
button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = view.bounds;
[button setTitleColor:[UIColor clearColor] forState:UIControlStateNormal];
button.titleLabel.font = [button.titleLabel.font fontWithSize:50];
[button addTarget:self action:#selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
button.tag = 99;
[view addSubview:button];
}
else
{
button = (UIButton *)[view viewWithTag:99];
}
//set button label
[button setTitle:[NSString stringWithFormat:#"%i", index] forState:UIControlStateNormal];
UIImage *image = [arrKitapKapaklari objectAtIndex:index];
[button setBackgroundImage:image forState:UIControlStateNormal];
[view update];
return view;
}
I use images with reflection built in them... don't need to do anything in code that way.. :p
I found my mistake. I am loading images here:
-(void) getImagesWithThread{
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
//for(int i=0;i<bookCount;i++){
for(int i=0;i<bookCount;i++){
NSData * imageData = [[NSData alloc] initWithContentsOfURL: [NSURL URLWithString: [arrBookImages objectAtIndex:i]]];
UIImage *image = [[UIImage imageWithData: imageData] retain];
image = [self scaleToSize:CGSizeMake(140, 200) withImage:image];
if(image!=nil) [arrBookImages replaceObjectAtIndex:i withObject:image];
[image release]; }
[carousel reloadData];
[pool drain];
}
When i performed this in background it didn't reload correctly. İf i perform normally, it works. But i want to load them in a thread. I mean first i want to set images and replace them images from url. but i want them to appear one by one. Do you have any idea?