Forcing UIAlertView into landscape mode - objective-c

Question

I need to display a UIAlertView in landscape mode. I tried the obvious, setting the transform in the willPresentAlertView: delegate method to no avail:
-(void) willPresentAlertView:(UIAlertView *)alertView {
alertView.transform = CGAffineTransformMakeRotation(M_PI_2);
}
Any suggestions on how to fix this?

Answer 1

Have you tried in the didPresentAlertView?
- (void)didPresentAlertView:(UIAlertView *)alertView
{
// UIAlertView in landscape mode
[UIView beginAnimations:#"" context:nil];
[UIView setAnimationDuration:0.1];
alertView.transform = CGAffineTransformRotate(alertView.transform, 3.14159/2);
[UIView commitAnimations];
}

Answer 2

It should rotate automatically if you're using UIViewController.
Did you forget to return YES for the desired orientations in shouldAutorotateToInterfaceOrientation?
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES; /* auto rotate always */
}

Answer 3

What is the orientation of the view that shows the alert? I had the same problem, I tried to show an UIAlertView inside a landscape view but always appeared in portrait orientation. So, I forced the orientation of the status bar:
[[UIApplication sharedApplication] setStatusBarOrientation:theOrientation];
That worked to me.

Answer 4

Before the Alert Window appeared , Set the current window display at the top. If not do this ,you can see the alert window's rotate animate.
-(void) willPresentAlertView:(UIAlertView *)alertView {
[UIView setAnimationsEnabled:NO];
self.view.window.windowLevel = 2003;
}
Rotate the Alert Window
-(void)didPresentAlertView:(UIAlertView *)alertView
{
UIWindow * alertWindow = alertView.window;
alertWindow.transform = CGAffineTransformMakeRotation(M_PI / 2);
alertWindow.bounds = CGRectMake(0, 0, SCREEN_HEIGHT,SCREEN_WIDTH);
alertWindow.center = CGPointMake(SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2);
[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:#selector(showLandscapeAlertView) userInfo:nil repeats:NO];
}
After the Alert window rotated, move the current window back.
-(void)showLandscapeAlertView {
self.view.window.windowLevel = 0;
[UIView setAnimationsEnabled:YES];
}

Answer 5

I was struggling with quite the same issue lately. For me solution was using UIAlertController - cover older handling of UIAlertview and UIActionsheet.
Create new controller, which is dedicated from UIAlertController, where you must overloaded methods viewWillAppear and viewWillDisappear, like in example bellow.
AlertViewController.h
#import <UIKit/UIKit.h>
#interface AlertViewController : UIAlertController
#end
AlertViewController.m
#import "AlertViewController.h"
#interface AlertViewController ()
#end
#implementation AlertViewController
- (void) viewWillAppear:(BOOL)animated {
[self.view setTransform:CGAffineTransformMakeRotation(M_PI_2)];
}
- (void) viewWillDisappear:(BOOL)animated {
[self.view setHidden:YES];
}
...
implement method for showing alert view where you needed.
(void) showInfoAlertView {
AlertViewController *alert = [AlertViewController alertControllerWithTitle:#"My Alert" message:#"This is an alert." preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction* ok = [UIAlertAction actionWithTitle:#"OK" style:UIAlertActionStyleDefault handler:nil];
[alert addAction:ok];
[self presentViewController:alert animated:NO completion:nil];
}