UIAlertView addSubview in iOS7
IosObjective CUialertviewIos7Ios Problem Overview
Adding some controls to UIAlertView
was deprecated in iOS7 using addSubview
method. As I know Apple promised to add contentView
property.
iOS 7 is released now and I see that this property is not added. That is why I search for some custom solution with ability to add progress bar to this alertView. Something for example similar to TSAlertView, but more ready for using in iOS 7.
Ios Solutions
Solution 1 - Ios
Here is a project on Github to add any UIView to an UIAlertView-looking dialog on iOS7.
(Copied from this StackOverflow thread.)
Solution 2 - Ios
It took me only 1 day to create my own alert view that looks exactly like Apple's
-
Take a screenshot of Apple's alert for reference (font sizes, spacings, width)
-
Create a xib with title, message, custom view and tables for buttons (Apple uses tables instead of
UIButton
now, default table cell is good enough). Note you need 3 button tables: two for left and right buttons (whenever the number of buttons is 2), another one for the other cases (one button or more than 2 buttons). -
Implement all the methods from
UIAlertView
on your custom alert. -
Show/Dismiss - you can create a specific modal window for your alerts but I just put my alerts on top of my root view controller. Register your visible alerts to a static array. If showing the first alert/dismissing the last, change tint mode of your window/view controller to dimmed/to automatic and add/remove a dimming view (black with alpha = 0.2).
-
Blurred background - use Apple's sample code (I used opaque white)
-
3D dynamic effects - use Apple's sample code (5 lines of code). If you want a nice effect, take a slightly bigger snapshot in step 5 and add inverse animators for alert background and foreground.
EDIT:
Both blurred background and the paralax effect sample code can be found in "iOS_RunningWithASnap" WWDC 2013 sample code
Paralax effect:
UIInterpolatingMotionEffect* xAxis = [[[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.x"
type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis] autorelease];
xAxis.minimumRelativeValue = [NSNumber numberWithFloat:-10.0];
xAxis.maximumRelativeValue = [NSNumber numberWithFloat:10.0];
UIInterpolatingMotionEffect* yAxis = [[[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"center.y"
type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis] autorelease];
yAxis.minimumRelativeValue = [NSNumber numberWithFloat:-10.0];
yAxis.maximumRelativeValue = [NSNumber numberWithFloat:10.0];
UIMotionEffectGroup *group = [[[UIMotionEffectGroup alloc] init] autorelease];
group.motionEffects = @[xAxis, yAxis];
[self addMotionEffect:group];
The blurred background is the only complicated thing. If you can use an opaque color instead, use it. Otherwise it's a lot of experimenting. Also note that blurred background is not a good solution when the background is dark.
For the show/dismiss animationg, I am using the new spring animation method:
void (^animations)() = ^{
self.alpha = 1.0f;
self.transform = CGAffineTransformIdentity;
};
self.alpha = 0.0f;
self.transform = CGAffineTransformMakeScale(0.5f, 0.5f);
[UIView animateWithDuration:0.3
delay:0.0
usingSpringWithDamping:0.7f
initialSpringVelocity:0.0f
options:UIViewAnimationOptionCurveLinear
animations:animations
completion:^(BOOL completed) {
//calling UIAlertViewDelegate method
}];
Solution 3 - Ios
I wrote a full implementation of UIAlertView that mimics the complete UIAlertView API, but adds the contentView property we've all wanted for so long: SDCAlertView.
(source: github.io)
Solution 4 - Ios
For those who love simple and effective methods with out having to write lines of code. Here is a cool solution without using any other private frame works for adding subviews to ios 7 alert views,i.e.
[alertView setValue:imageView forKey:@"accessoryView"];
Sample code for better understanding,
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(180, 10, 85, 50)];
UIImage *wonImage = [UIImage imageNamed:@"image.png"];
[imageView setImage:wonImage];
//check if os version is 7 or above
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1) {
[alertView setValue:imageView forKey:@"accessoryView"];
}else{
[alertView addSubview:imageView];
}
Hope it helps some one,thanks :)
Solution 5 - Ios
For IOS7
UIAlertView *alertView1 = [[UIAlertView alloc] initWithTitle:@"Enter Form Name"
message:@""
delegate:self
cancelButtonTitle:@"Cancel"
otherButtonTitles:@"Ok", nil];
alertView1.alertViewStyle = UIAlertViewStyleSecureTextInput;
UITextField *myTextField = [alertView1 textFieldAtIndex:0];
[alertView1 setTag:555];
myTextField.keyboardType=UIKeyboardTypeAlphabet;
[alertView1 show];
Solution 6 - Ios
There wont be UIAlertView
with custom views in iOS7, nor contentView
which Apple changed its mind about, so addSubview
is impossible now in UIAlertView
.
A good alternative will be SVProgressHUD, according to many threads in Apple's forum.
Edit:
There is officially no addSubview
nor subclassing for UIAlertView
in iOS7.
> The UIAlertView class is intended to be used as-is and does not > support subclassing. The view hierarchy for this class is private and > must not be modified.
Other good alternatives:
Solution 7 - Ios
You can find simple solution without extra classes here
It is based on setting accessoryView for ordinary UIAlertView.
Solution 8 - Ios
PKAlertController (https://github.com/goodpatch/PKAlertController) is great library. I tested a lot of similar libraries and just this satisfied all my requirements.
Why it is cool:
- Supports custom view
- Supports iOS7
- It is view controller
- It behaves and looks like native alert view, including motion effects
- Customizable
- Similar interface like in UIAlertController