#import "ViewController.h"
@interface ViewController ()
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
}
- (IBAction)normal:(id)sender {
/**
*
typedef NS_ENUM(NSInteger, UIAlertControllerStyle) {
UIAlertControllerStyleActionSheet = 0, 屏幕底部的操作列表
UIAlertControllerStyleAlert 屏幕中央的警告框
}
*/
//1.创建
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"标题" message:@"提示信息" preferredStyle:UIAlertControllerStyleAlert];
//2.添加按钮
/**
*
typedef NS_ENUM(NSInteger, UIAlertActionStyle) {
UIAlertActionStyleDefault = 0, 默认
UIAlertActionStyleCancel, 取消
UIAlertActionStyleDestructive 破坏的；毁灭性的；有害的，消极的
} ;
*/
/**
* UIAlertActionStyleDefault:
特点:蓝字
布局:按添加顺序
*/
UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"确认1" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"Default");
}];
/**
* UIAlertActionStyleCancel:
特点:‼️至多只能添加一个 (多个会报错)
布局:两个按钮居左 多个按钮居下
*/
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"cancel");
}];
/**
* UIAlertActionStyleDestructive:
特点:红字
布局:按添加顺序
*/
UIAlertAction *destructive = [UIAlertAction actionWithTitle:@"确认2" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"destructive");
}];
//添加
[alert addAction:cancel];
[alert addAction:defaultAction];
[alert addAction:destructive];
//end.模态弹出
[self presentViewController:alert animated:YES completion:nil];
}
- (IBAction)textfield:(id)sender {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"提示" message:@"附输入框" preferredStyle:UIAlertControllerStyleAlert];
//添加输入框
[alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
//设置相关属性的地方
textField.tintColor = [UIColor cyanColor];
textField.attributedPlaceholder = [[NSAttributedString alloc]initWithString:@"请输入你的支付宝账号 嘻嘻" attributes:@{NSForegroundColorAttributeName:[UIColor cyanColor],NSFontAttributeName:[UIFont systemFontOfSize:14]}];
}];
[alert addTextFieldWithConfigurationHandler:^(UITextField * _Nonnull textField) {
textField.tintColor = [UIColor redColor];
textField.attributedPlaceholder = [[NSAttributedString alloc]initWithString:@"请输入你的支付宝密码 嘻嘻" attributes:@{NSForegroundColorAttributeName:[UIColor redColor],NSFontAttributeName:[UIFont systemFontOfSize:14]}];
textField.secureTextEntry = YES;
}];
UIAlertAction *confirm = [UIAlertAction actionWithTitle:@"确认" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
//从alert的数组中获取一个textfield
NSLog(@"%@",[alert.textFields firstObject].text);
NSLog(@"%@",[alert.textFields lastObject].text);
}];
[alert addAction:confirm];
[self presentViewController:alert animated:YES completion:nil];
}
- (IBAction)actionsheet:(id)sender {
UIAlertController *alert = [UIAlertController alertControllerWithTitle:@"操作列表" message:@"提示消息" preferredStyle:UIAlertControllerStyleActionSheet];
//2.添加按钮
/**
*
typedef NS_ENUM(NSInteger, UIAlertActionStyle) {
UIAlertActionStyleDefault = 0, 默认
UIAlertActionStyleCancel, 取消
UIAlertActionStyleDestructive 破坏的；毁灭性的；有害的，消极的
} ;
*/
/**
* UIAlertActionStyleDefault:
特点:蓝字
布局:按添加顺序
*/
UIAlertAction *defaultAction = [UIAlertAction actionWithTitle:@"确认1" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"Default");
}];
/**
* UIAlertActionStyleCancel:
特点:‼️至多只能添加一个 (多个会报错)
布局:两个按钮居左 多个按钮居下
*/
UIAlertAction *cancel = [UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"cancel");
}];
/**
* UIAlertActionStyleDestructive:
特点:红字
布局:按添加顺序
*/
UIAlertAction *destructive = [UIAlertAction actionWithTitle:@"确认2" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"destructive");
}];
//添加
[alert addAction:cancel];
[alert addAction:defaultAction];
[alert addAction:destructive];
[self presentViewController:alert animated:YES completion:nil];
}
@end