Example code of LGLAlertView prompt box in iOS

After using with iOS8, just the system UIAlertController was encapsulated, save each time to write a lot of code. Encapsulation only needs 1 code, deome address

: https: / / github com/liguoliangiOS/LGLAlertView git

LGLAlertView.h:

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>
typedef NS_ENUM(NSInteger, LGLAlertViewActionStyle) {
LGLAlertViewActionStyleDefault = 0,
LGLAlertViewActionStyleCancel,
LGLAlertViewActionStyleDestructive
};
/** alertView The callback block */
typedef void (^CallBackBlock)(NSInteger btnIndex);
/** alertView The callback block */
typedef void (^TextFieldCallBackBlock)(NSString * text);
@interface LGLAlertView : NSObject
/**
*  Single or no buttons   Do nothing   It's just a reminder 
* @param title  Header of the prompt 
* @param message  Prompt information 
* @param btnTitle  The title name of the individual button 
*
*/
+ (void)showAlertViewWith:(UIViewController *)viewController title:(NSString *)title
message:(NSString *)message buttonTitle:(NSString *)btnTitle
buttonStyle:(LGLAlertViewActionStyle)buttonStyle;
/**
*  There are two or more buttons   determine   cancel 
* @param title  Header of the prompt 
* @param message  Prompt information 
* @param btnTitle  The title name of the individual button 
* @param cancelButtonTitle  Cancel button 
* @param destructiveBtn destructiveBtn button 
* @param otherButtonTitles  Confirm button 
*/
+ (void)showAlertViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message
CallBackBlock:(CallBackBlock)textBlock cancelButtonTitle:(NSString *)cancelBtnTitle
destructiveButtonTitle:(NSString *)destructiveBtnTitle
otherButtonTitles:(NSString *)otherBtnTitles,...NS_REQUIRES_NIL_TERMINATION;
/**
*  Have input box   determine   cancel  ( Note:   There's only one 1 An input box )
* @param title  Header of the prompt 
* @param message  Prompt information 
* @param btnTitle  The title name of the individual button 
* @param cancelButtonTitle  Cancel button 
* @param destructiveBtn destructiveBtn button 
* @param otherButtonTitles  Confirm button 
*/
+ (void)showAlertTextFieldViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message
TextFeildCallBackBlock:(TextFieldCallBackBlock)block cancelButtonTitle:(NSString *)cancelBtnTitle
otherButtonTitles:(NSString *)otherBtnTitle;
/**
*  Single or no buttons ActionSheet  It's just a reminder   The button did not respond to an event 
* @param title  Header of the prompt 
* @param message  Prompt information 
* @param btnTitle  The title name of the individual button 
*
*/
+ (void)showAlertActionSheetViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message
buttonTitle:(NSString *)btnTitle buttonStyle:(LGLAlertViewActionStyle)buttonStyle;
/**
*  There is no button ActionSheet  Button has a response event 
* @param title  Header of the prompt 
* @param message  Prompt information 
* @param btnTitle  The title name of the individual button 
*
*/
+ (void)showAlertActionSheetWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message
callbackBlock:(CallBackBlock)block destructiveButtonTitle:(NSString *)destructiveBtnTitle
cancelButtonTitle:(NSString *)cancelBtnTitle
otherButtonTitles:(NSString *)otherBtnTitles, ...NS_REQUIRES_NIL_TERMINATION;
@end

LGLAlertView. m: file

#import "LGLAlertView.h"
#define LGLAlertShowTime 1.0
@implementation LGLAlertView
// ======================================================================== ----- AlertView start----- ==================================================================================
//  Single or no buttons 
+ (void)showAlertViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message buttonTitle:(NSString *)btnTitle buttonStyle:(LGLAlertViewActionStyle)buttonStyle {
UIAlertController * alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
if (btnTitle.length) {
UIAlertActionStyle actionStyle = (buttonStyle == LGLAlertViewActionStyleDefault) ? UIAlertActionStyleDefault : ((buttonStyle == LGLAlertViewActionStyleCancel) ? UIAlertActionStyleCancel : UIAlertActionStyleDestructive);
UIAlertAction * alertAction = alertAction = [UIAlertAction actionWithTitle:btnTitle style:actionStyle handler:^(UIAlertAction * _Nonnull action) {
[self performSelector:@selector(dismissAlertController:) withObject:alertController afterDelay:LGLAlertShowTime];
}];;
[alertController addAction:alertAction];
[viewController presentViewController:alertController animated:YES completion:nil];
} else {
[viewController presentViewController:alertController animated:YES completion:nil];
[self performSelector:@selector(dismissAlertController:) withObject:alertController afterDelay:LGLAlertShowTime];
}
}
//  Single or multiple buttons 
+ (void)showAlertViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message CallBackBlock:(CallBackBlock)block cancelButtonTitle:(NSString *)cancelBtnTitle destructiveButtonTitle:(NSString *)destructiveBtnTitle otherButtonTitles:(NSString *)otherBtnTitles,... {
UIAlertController * alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
// Add a button 
if (cancelBtnTitle.length) {
UIAlertAction * cancelAction = [UIAlertAction actionWithTitle:cancelBtnTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
block(0);
}];
[alertController addAction:cancelAction];
}
if (destructiveBtnTitle.length) {
UIAlertAction * destructiveAction = [UIAlertAction actionWithTitle:destructiveBtnTitle style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
block(1);
}];
[alertController addAction:destructiveAction];
}
if (otherBtnTitles.length) {
UIAlertAction *otherActions = [UIAlertAction actionWithTitle:otherBtnTitles style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
(!cancelBtnTitle.length && !destructiveBtnTitle.length) ? block(0) : (((cancelBtnTitle.length && !destructiveBtnTitle.length) || (!cancelBtnTitle.length && destructiveBtnTitle.length)) ? block(1) : block(2));
}];
[alertController addAction:otherActions];
va_list args;
va_start(args, otherBtnTitles);
if (otherBtnTitles.length) {
NSString * otherString;
int index = 2;
(!cancelBtnTitle.length && !destructiveBtnTitle.length) ? (index = 0) : ((cancelBtnTitle.length && !destructiveBtnTitle.length) || (!cancelBtnTitle.length && destructiveBtnTitle.length) ? (index = 1) : (index = 2));
while ((otherString = va_arg(args, NSString*))) {
index ++ ;
UIAlertAction * otherActions = [UIAlertAction actionWithTitle:otherString style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
block(index);
}];
[alertController addAction:otherActions];
}
}
va_end(args);
}
[viewController presentViewController:alertController animated:YES completion:nil];
// If there is no button, the automatic delay disappears 
if (!cancelBtnTitle.length && !destructiveBtnTitle.length && !otherBtnTitles) {
// At this time self Refers to the class 
[self performSelector:@selector(dismissAlertController:) withObject:alertController afterDelay:LGLAlertShowTime];
}
}
//  Have input box 
+ (void)showAlertTextFieldViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message TextFeildCallBackBlock:(TextFieldCallBackBlock)textBlock cancelButtonTitle:(NSString *)cancelBtnTitle otherButtonTitles:(NSString *)otherBtnTitle {
UIAlertController * alertController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleAlert];
[alertController addTextFieldWithConfigurationHandler:^(UITextField *textField) {
}];
if (cancelBtnTitle.length) {
UIAlertAction * cancelAction = [UIAlertAction actionWithTitle:cancelBtnTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
[self dismissAlertController:alertController];
}];
[alertController addAction:cancelAction];
}
if (otherBtnTitle.length) {
UIAlertAction * otherAction = [UIAlertAction actionWithTitle:otherBtnTitle style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
textBlock([alertController.textFields firstObject].text);
}];
[alertController addAction:otherAction];
}
[viewController presentViewController:alertController animated:YES completion:nil];
// If there is no button, the automatic delay disappears 
if (!cancelBtnTitle.length && !otherBtnTitle.length) {
// At this time self Refers to the class 
[self performSelector:@selector(dismissAlertController:) withObject:alertController afterDelay:LGLAlertShowTime];
}
}
// ======================================================================== ----- AlertView end----- ==================================================================================
#pragma mark ====  Click on the event  ======
+ (void)dismissAlertController:(UIAlertController *)alert {
[alert dismissViewControllerAnimated:YES completion:nil];
}
// ======================================================================== -- ActionSheet Start -- ====================================================================================
+ (void)showAlertActionSheetViewWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message buttonTitle:(NSString *)btnTitle buttonStyle:(LGLAlertViewActionStyle)buttonStyle {
UIAlertController * actionController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleActionSheet];
if (btnTitle.length) {
UIAlertActionStyle actionStyle = (buttonStyle == LGLAlertViewActionStyleDefault) ? UIAlertActionStyleDefault : ((buttonStyle == LGLAlertViewActionStyleCancel) ? UIAlertActionStyleCancel : UIAlertActionStyleDestructive);
UIAlertAction * alertAction = alertAction = [UIAlertAction actionWithTitle:btnTitle style:actionStyle handler:^(UIAlertAction * _Nonnull action) {
[self performSelector:@selector(dismissAlertController:) withObject:actionController afterDelay:LGLAlertShowTime];
}];;
[actionController addAction:alertAction];
[viewController presentViewController:actionController animated:YES completion:nil];
} else {
[viewController presentViewController:actionController animated:YES completion:nil];
// If there is no button, the automatic delay disappears 
[self performSelector:@selector(dismissAlertController:) withObject:actionController afterDelay:LGLAlertShowTime];
}
}
+ (void)showAlertActionSheetWith:(UIViewController *)viewController title:(NSString *)title message:(NSString *)message callbackBlock:(CallBackBlock)block destructiveButtonTitle:(NSString *)destructiveBtnTitle cancelButtonTitle:(NSString *)cancelBtnTitle otherButtonTitles:(NSString *)otherBtnTitles, ... {
UIAlertController * actionController = [UIAlertController alertControllerWithTitle:title message:message preferredStyle:UIAlertControllerStyleActionSheet];
// Add a button 
if (destructiveBtnTitle.length) {
UIAlertAction *destructiveAction = [UIAlertAction actionWithTitle:destructiveBtnTitle style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
block(0);
}];
[actionController addAction:destructiveAction];
}
if (cancelBtnTitle.length) {
UIAlertAction *cancelAction = [UIAlertAction actionWithTitle:cancelBtnTitle style:UIAlertActionStyleCancel handler:^(UIAlertAction *action) {
destructiveBtnTitle.length ? block(1) : block(0);
}];
[actionController addAction:cancelAction];
}
if (otherBtnTitles.length)
{
UIAlertAction *otherActions = [UIAlertAction actionWithTitle:otherBtnTitles style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
(!cancelBtnTitle.length && !destructiveBtnTitle.length) ? block(0) : (((destructiveBtnTitle.length && !cancelBtnTitle.length) || (!destructiveBtnTitle.length && cancelBtnTitle.length)) ? block(1) : block(2));
}];
[actionController addAction:otherActions];
va_list args;
va_start(args, otherBtnTitles);
if (otherBtnTitles.length) {
NSString * otherString;
int index = 2;
(!cancelBtnTitle.length && !destructiveBtnTitle.length) ? (index = 0) : ((cancelBtnTitle.length && !destructiveBtnTitle.length) || (!cancelBtnTitle.length && destructiveBtnTitle.length) ? (index = 1) : (index = 2));
while ((otherString = va_arg(args, NSString*))) {
index ++ ;
UIAlertAction * otherActions = [UIAlertAction actionWithTitle:otherString style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
block(index);
}];
[actionController addAction:otherActions];
}
}
va_end(args);
}
[viewController presentViewController:actionController animated:YES completion:nil];
// If there is no button, the automatic delay disappears 
if (!cancelBtnTitle.length && !destructiveBtnTitle.length && !otherBtnTitles.length) {
// At this time self Refers to the class 
[self performSelector:@selector(dismissAlertController:) withObject:actionController afterDelay:LGLAlertShowTime];
}
}
@end