1 UIAlertController *alertC = [UIAlertController alertControllerWithTitle:
@"
alertC
" message:
@"
message
" preferredStyle:UIAlertControllerStyleAlert];
2
3
//
preferredStyle--只讀
4
//
打印選擇的AlertController的類型 actionSheet--0 alertView--1
5
NSLog(
@"
%ld
",alertC.preferredStyle);
6
//
獲取alertC的標題和信息
7
NSLog(
@"
%@
",alertC.title);
8 NSLog(
@"
%@
",alertC.message);
9
//
更改標題
10
alertC.title =
@"
title change
";
11
12
//
直接給alertC添加事件執行按鈕actionTitle(只能添加一個)
13
/*
14
[alertC addAction:[UIAlertAction actionWithTitle:@"actionTitle" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
15
//點擊actionTitle時的回調方法
16
}]];
17
*/
18
19
//
添加多個按鈕
20
//
沒有任何代理的狀況下,在咱們點擊alertView界面中的按鈕時,就不須要用buttonIndex來區分咱們點擊的是哪一個按鈕,同時一個界面上多個alertView時,也不須要用tag值來區分你到底點擊的是哪個alertView上的按鈕了
21
//
這樣便於咱們的邏輯思惟,可是代碼量並無減小
22
UIAlertAction *action = [UIAlertAction actionWithTitle:NSLocalizedString(
@"
cancle
",
@"
Cancle action
")
23 style:UIAlertActionStyleCancel
24 handler:^(UIAlertAction *action) {
25
//
cancle對應執行的代碼
26
NSLog(
@"
cancle action
");
27 }];
28 UIAlertAction *action1 = [UIAlertAction actionWithTitle:NSLocalizedString(
@"
sure
",
@"
Sure action
")
29 style:UIAlertActionStyleDefault
30 handler:^(UIAlertAction *action) {
31
//
sure對應執行的代碼
32
NSLog(
@"
sure action
");
33 }];
34
35 [alertC addAction:action];
36 [alertC addAction:action1];
37
38
//
alertView的輸入框 sheet類型中沒有 可是sheet類型的UIAlertController能夠添加textField 當用戶要顯示sheet時程序會崩
39
[alertC addTextFieldWithConfigurationHandler:^(UITextField *textField) {
40 textField.placeholder =
@"
textFiled
";
41 }];
42
43
//
在這裏無論是alertView仍是actionSheet都是一個獨立的Cotroller,因此這裏須要經過presentViewController來展示咱們的alertView或者actionSheet
44
[self presentViewController:alertC animated:YES completion:nil];
1 UIAlertController *alertC = [UIAlertController alertControllerWithTitle:
@"
alertC
" message:
@"
message
" preferredStyle:UIAlertControllerStyleActionSheet];
2
3 UIAlertAction *action = [UIAlertAction actionWithTitle:NSLocalizedString(
@"
cancle
",
@"
Cancle action
")
4 style:UIAlertActionStyleCancel
5 handler:^(UIAlertAction *action) {
6 NSLog(
@"
cancle action
");
7 }];
8 UIAlertAction *action1 = [UIAlertAction actionWithTitle:NSLocalizedString(
@"
sure
",
@"
Sure action
")
9 style:UIAlertActionStyleDefault
10 handler:^(UIAlertAction *action) {
11 NSLog(
@"
sure action
");
12 }];
13
14 [alertC addAction:action];
15 [alertC addAction:action1];
16 [self presentViewController:alertC animated:YES completion:nil];