iOS 鬧鐘功能實現+本地通知+音頻播放

pwmd 9年前發布 | 18K 次閱讀 Objective-C IOS

問題描述：通過picker設置時間，到了設定好的時間鬧鐘響起，并彈出提示框，點擊確定，停止播放音頻。如果設置好了鬧鐘，沒有停在該頁面，而是返回了手機主屏幕或是手機鎖屏，當到了鬧鐘設定的時間，會彈出消息通知。（如果設定的時間是已經過去的時間，頁面不會有響應，直到設置正確的時間為止.）

效果圖如下：

具體代碼如下：

NaoZhongViewController.m文件

#import "NaoZhongViewController.h"

#import <AVFoundation/AVFoundation.h>

#define kW self.view.frame.size.width

#define kH self.view.frame.size.height

@interface NaoZhongViewController ()

{

NSTimer * _timer; //定時器

AVAudioPlayer * _player;

}

@property(nonatomic, weak)UIDatePicker * picker;

@property(nonatomic,weak) UILabel * label;

@property(nonatomic,assign)NSInteger lt;

@property(nonatomic,weak) UIButton * button;

@end

@implementation NaoZhongViewController

- (void)viewDidLoad {

[super viewDidLoad];

self.title=@"鬧鐘";

self.view.backgroundColor=[UIColor whiteColor];

[self _loadView];

}

- (void) _loadView

{

//view

UIView * view=[[UIView alloc]initWithFrame:CGRectMake(, 20+45, kW, kH)];

UIDatePicker * picker=[[UIDatePicker alloc]init];

picker.backgroundColor=[UIColor colorWithRed:0.1 green:0.1 blue:0.5 alpha:0.1];

[view addSubview:picker];

_picker=picker;

[self.view addSubview:view];

UIButton * button=[[UIButton alloc]initWithFrame:CGRectMake(, , 100, 50)];

button.backgroundColor=[UIColor colorWithRed:0.1 green:0.5 blue:0.8 alpha:0.2];

button.center=self.view.center;

[button setTitle:@"確定" forState:UIControlStateNormal];

[button setTitleColor:[UIColor redColor] forState:UIControlStateNormal];

[button addTarget:self action:@selector(countTime:) forControlEvents:UIControlEventTouchUpInside];

[button setTitle:@"確定" forState:UIControlStateSelected];

[button setTitleColor:[UIColor grayColor] forState:UIControlStateSelected];

_button=button;

[self.view addSubview:button];

UILabel * label=[[UILabel alloc]initWithFrame:CGRectMake(20, 400, kW-40, kH-400-80)];

label.backgroundColor=[UIColor colorWithRed:0.2 green:0.2 blue:0.6 alpha:0.2];

label.text=@"00:00:00";

label.textAlignment=NSTextAlignmentCenter;

[label setFont:[UIFont fontWithName:nil size:80]];

_label=label;

[self.view addSubview:label];

UILabel * label1=[[UILabel alloc]initWithFrame:CGRectMake(25, 400, kW-40, 40)];

label1.text=@"鬧鐘還剩時間：";

[self.view addSubview: label1];

}

- (void) countTime:(UIButton *) button

{

button.selected=!button.selected;

//求從現在到設置時間的時長秒數(有誤差)

//1970到picker的秒數

NSTimeInterval seconds=[_picker.date timeIntervalSince1970];

NSLog(@"%@",_picker.date); //設置的時間

NSLog(@"%.0f",seconds);

//1970到現在的秒數

NSDate * date=[[NSDate alloc]init];

NSLog(@"%@",date);

NSTimeInterval seconds2=[date timeIntervalSince1970];

NSLog(@"%.0f",seconds2);

NSLog(@"時間差是：----%.0f 秒",seconds-seconds2);

//求從現在到設置時間的時長秒數（有誤差）

NSDate * date=[[NSDate alloc]init];

NSLog(@"%@",date);

NSTimeInterval seconds2=[_picker.date timeIntervalSinceDate:date];

NSLog(@"%.0f",seconds2);

NSLog(@"時間差是：----%.0f 秒",seconds2);

//picker 設置的時間

//格式

NSDateFormatter * format1=[[NSDateFormatter alloc]init];

[format1 setDateFormat:@"hh"];

NSDateFormatter * format2=[[NSDateFormatter alloc]init];

[format2 setDateFormat:@"mm"];

//獲取小時

NSString * str1=[format1 stringFromDate:_picker.date];

NSInteger temp1=[str1 integerValue];

NSDate * date3=[[NSDate alloc]init];

NSString * str3=[format1 stringFromDate:date3];

NSInteger temp3=[str3 integerValue];

//獲取分鐘

NSString * str2=[format2 stringFromDate:_picker.date];

NSInteger temp2=[str2 integerValue];

NSDate * date4=[[NSDate alloc]init];

NSString * str4=[format2 stringFromDate:date4];

NSInteger temp4=[str4 integerValue];

NSLog(@"鬧鐘時長：%li 秒",(temp1-temp3)*60*60+(temp2-temp4)*60);

//--------------------------------------------------------------------

NSInteger lt=(temp1-temp3)*60*60+(temp2-temp4)*60;

_lt=lt;

if (_lt> && _button.selected)

{

NSString * strT=[NSString stringWithFormat:@"%02i:%02i:%02i",(int)lt/3600%60,(int)lt/60%60,(int)lt%60];

_label.text=strT;

}

else

{

NSLog(@"請重新設置時間....");

_label.text=@"00:00:00";

return;

}

if(_timer==nil)

{

//每隔0.01秒刷新一次頁面

_timer=[NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(runAction) userInfo:nil repeats:YES];

[[NSRunLoop currentRunLoop] addTimer:_timer forMode:NSRunLoopCommonModes];

NSLog(@"開始倒計時.....");

}

else

{

[_timer invalidate]; //定時器失效

}

- (void) runAction

{

_lt--;

if (_lt==)

{

[_timer invalidate];//讓定時器失效

UIAlertView * alert=[[UIAlertView alloc]initWithTitle:@"提示" message:@"關閉鬧鐘" delegate:nil cancelButtonTitle:@"確定" otherButtonTitles:nil];

// [alert addButtonWithTitle:@"確定"];

alert.delegate=self;

// [alert clickedButtonAtIndex:0];

[alert show];

//提示框彈出的同時，開始響鬧鐘

NSString * path=[[NSBundle mainBundle]pathForResource:@"4948.mp3" ofType:nil];

NSURL * url=[NSURL fileURLWithPath:path];

NSError * error;

_player=[[AVAudioPlayer alloc]initWithContentsOfURL:url error:&error];

_player.numberOfLoops=-1; //無限循環 =0 一遍 =1 兩遍 =2 三遍 =負數單曲循環

_player.volume=2; //音量

[_player prepareToPlay]; //準備工作

//[_player stop]; //卡一下

[_player play]; //開始播放

// 1 注冊通知

UIApplication * app=[UIApplication sharedApplication];

NSArray * array=[app scheduledLocalNotifications];

NSLog(@"%ld",array.count);

for (UILocalNotification * local in array) {

NSDictionary * dic= local.userInfo;

if ([dic[@"name"] isEqual:@"zhangsan"]) {

//刪除指定的通知

[app cancelLocalNotification:local];

}

//刪除所有通知

// [app cancelAllLocalNotifications];

//判斷是否已經注冊通知

UIUserNotificationSettings* setting= [app currentUserNotificationSettings];

//如果setting.types==UIUserNotificationTypeNone 需要注冊通知

if(setting.types==UIUserNotificationTypeNone){

UIUserNotificationSettings* newSetting= [UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeBadge|UIUserNotificationTypeSound|UIUserNotificationTypeAlert categories:nil];

[app registerUserNotificationSettings:newSetting];

}else{

[self addLocalNotification];

}

NSString * str=[NSString stringWithFormat:@"%02d:%02d:%02d",(int)(self.lt)/3600%24,(int)(self.lt)/60%60,(int)(self.lt)%60];

_label.text=str;

}

#pragma mark - 增加本地通知

- (void) addLocalNotification{

UILocalNotification * notification=[[UILocalNotification alloc] init];

notification.fireDate=[NSDate dateWithTimeIntervalSinceNow:];

notification.alertBody=@"鬧鐘響了。。。。。。";

notification.alertAction=@"打開鬧鐘";

notification.repeatInterval=NSCalendarUnitSecond;

notification.applicationIconBadgeNumber=1;

//notification.userInfo=@{@"name":@"zhangsan"};

//notification.soundName=@"4195.mp3";

[[UIApplication sharedApplication] scheduleLocalNotification:notification];

}

//注冊完成后調用

-(void)application:(UIApplication *)application didRegisterUserNotificationSettings:(UIUserNotificationSettings *)notificationSettings{

[self addLocalNotification];

}

-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{

NSLog(@"+========我接受到通知了");

}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex

{

[_player stop];

}

@end

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Objective-C IOS

iOS 鬧鐘功能實現+本地通知+音頻播放

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