UIAlertView

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#import "ViewController.h"

@interface ViewController ()<UIAlertViewDelegate>
{
int number;
}
@end

@implementation ViewController

- (void)viewDidLoad {
[super viewDidLoad];


}
//点击屏幕就会触发此方法
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
number = arc4random()%2;
NSLog(@"number = %d",number);
if (number == 0) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"赶快还钱" delegate:self cancelButtonTitle:@"还钱" otherButtonTitles:@"不还",@"就不还", nil];
[alert show];
}
if (number == 1) {
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"提示" message:@"还钱" delegate:self cancelButtonTitle:@"还钱" otherButtonTitles:@"不还",@"就不还", nil];


alert.alertViewStyle = UIAlertViewStyleLoginAndPasswordInput;

[alert show];

// UIAlertViewStyleDefault = 0,
// UIAlertViewStyleSecureTextInput,
// UIAlertViewStylePlainTextInput,
// UIAlertViewStyleLoginAndPasswordInput
}
}
#pragma mark -
#pragma mark delegate
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (number == 0) {
switch (buttonIndex) {
case 0:
NSLog(@"%ld",buttonIndex);
break;
case 1:
NSLog(@"%ld",buttonIndex);
break;
case 2:
NSLog(@"%ld",buttonIndex);
break;

default:
break;
}

}else{

switch (buttonIndex) {
case 0:
NSLog(@"%ld",buttonIndex); NSLog(@"%@",[[alertView textFieldAtIndex:0]text]);
NSLog(@"%@",[[alertView textFieldAtIndex:1]text]);
break;
case 1:
NSLog(@"%ld",buttonIndex);
break;
case 2:
NSLog(@"%ld",buttonIndex);
break;

default:
break;
}
}


}
@end