完成舒眠课程和助眠音乐息屏播放功能

DreamSleep/DreamSleep/Basement/Utils/DSConstUtil.h

@@ -41,6 +41,10 @@ FOUNDATION_EXTERN NSString * const ExitCoaxSleep;
 FOUNDATION_EXTERN NSString * const NeedUpdateAICoach;
 // 更新是否开启AI通知
 FOUNDATION_EXTERN NSString * const NeedUpdateStartAI;
+// 解锁音频成功通知
+FOUNDATION_EXTERN NSString * const UnlockAudioSuccess;
+// 监听息屏播放页面点击播放、上一首、下一首通知
+FOUNDATION_EXTERN NSString * const RemoteCommandCenterDidClick;
 
 // 用户基础信息
 FOUNDATION_EXTERN NSString * const UserBasicInfo;

DreamSleep/DreamSleep/Basement/Utils/DSConstUtil.m

@@ -27,6 +27,8 @@ NSString * const NoiseTimingDidClick = @"NoiseTimingDidClickNoti";
 NSString * const ExitCoaxSleep = @"ExitCoaxSleepNoti";
 NSString * const NeedUpdateAICoach = @"NeedUpdateAICoachNoti";
 NSString * const NeedUpdateStartAI = @"NeedUpdateStartAINoti";
+NSString * const UnlockAudioSuccess = @"UnlockAudioSuccessNoti";
+NSString * const RemoteCommandCenterDidClick = @"RemoteCommandCenterDidClickNoti";
 
 NSString * const UserBasicInfo = @"UserBasicInfo";
 

DreamSleep/DreamSleep/Class/HomeModule/Course/Controller/CourseDetailController.m

@@ -45,9 +45,12 @@
     
     if (self.isFromPlayer == NO) {
         // 给音频列表页面添加通知（从播放页面跳转到音频列表），通知发送时机：音频列表（从播放页面跳转到音频列表）登录成功后
-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(refreshOriAudioList) name:@"UnlockAudioSuccessNoti" object:nil];
+        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(refreshOriAudioList) name:UnlockAudioSuccess object:nil];
     }
     
+    // 监听息屏页面点击播放、上一首、下一首点击通知，用于更新当前播放列表正在播放的音频UI状态
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(updateListNoti:) name:RemoteCommandCenterDidClick object:nil];
+    
     NSString *eventID = self.courseType == CourseTypeSafe ? Meditation_Click : Relax_Music_Click;
     NSString *entranceName = self.courseType == CourseTypeSafe ? @"首页-舒眠课程" : @"首页-助眠音乐";
     if (self.entrance == EntranceCourseList) {
@@ -60,8 +63,10 @@
 
 - (void)dealloc {
     if (self.isFromPlayer == NO) {
-        [[NSNotificationCenter defaultCenter] removeObserver:self name:@"UnlockAudioSuccessNoti" object:nil];
+        [[NSNotificationCenter defaultCenter] removeObserver:self name:UnlockAudioSuccess object:nil];
     }
+    
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:RemoteCommandCenterDidClick object:nil];
 }
 
 - (void)getAudiosData {
@@ -73,6 +78,12 @@
     }];
 }
 
+- (void)updateListNoti:(NSNotification *)noti {
+    NSInteger playingIndex = [noti.userInfo[@"playingIndex"] integerValue];
+    self.playingIndex = playingIndex;
+    [self.audioListView reloadData];
+}
+
 #pragma mark - Actions
 - (void)backAction {
     [super backAction];
@@ -122,7 +133,7 @@
     [self.unlockBtn setTitle:@"开始第一节" forState:UIControlStateNormal];
     [self getAudiosData];
     
-    if (self.isFromPlayer) { [[NSNotificationCenter defaultCenter] postNotificationName:@"UnlockAudioSuccessNoti" object:nil]; }
+    if (self.isFromPlayer) { [[NSNotificationCenter defaultCenter] postNotificationName:UnlockAudioSuccess object:nil]; }
 }
 
 #pragma mark - 刷新最开始的音频列表

DreamSleep/DreamSleep/Class/HomeModule/Course/Controller/MusicPlayerController.m

@@ -10,6 +10,7 @@
 #import <FSAudioController.h>
 #import "SubAudioModel.h"
 #import "CourseDetailController.h"
+#import <MediaPlayer/MediaPlayer.h>
 
 @interface MusicPlayerController () <MusicPlayerViewDelegate, CourseDetailControllerDelegate>
 @property (nonatomic, strong) MusicPlayerView *playerView;
@@ -23,7 +24,12 @@
 @property (nonatomic, assign) FSAudioStreamState streamState;
 @end
 
-@implementation MusicPlayerController
+@implementation MusicPlayerController {
+    // 控制中心信息
+    NSMutableDictionary *_remoteInfoDictionary;
+    // 是否进入后台
+    BOOL _isBackground;
+}
 
 - (void)loadView {
     self.view = self.playerView;
@@ -64,6 +70,7 @@
             case kFsAudioStreamPlaying:
                 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
                 DSLog(@"播放ing...");
+                [weakSelf didClickRemoteCommandCenter];
                 break;
             case kFsAudioStreamFailed:
                 [UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
@@ -92,11 +99,129 @@
     TimerProxy *proxy = [TimerProxy proxyWithTarget:self];
     self.progressTimer = [CADisplayLink displayLinkWithTarget:proxy selector:@selector(updateProgress)];
     [self.progressTimer addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
+    
+    [self addPlayerObserver];
+    [self addRemoteControlHandler];
 }
 
 - (void)dealloc {
     [self.progressTimer invalidate];
     self.progressTimer = nil;
+    
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationWillResignActiveNotification object:nil];
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationDidBecomeActiveNotification object:nil];
+    
+    [[UIApplication sharedApplication] endReceivingRemoteControlEvents];
+    MPRemoteCommandCenter *center = [MPRemoteCommandCenter sharedCommandCenter];
+    [[center playCommand] removeTarget:self];
+    [[center pauseCommand] removeTarget:self];
+    [[center nextTrackCommand] removeTarget:self];
+    [[center previousTrackCommand] removeTarget:self];
+    [center.changePlaybackPositionCommand removeTarget:self];
+}
+
+- (void)addPlayerObserver {
+    // 将要进入后台
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerWillResignActive) name:UIApplicationWillResignActiveNotification object:nil];
+    // 已经进入前台
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playerDidEnterForeground) name:UIApplicationDidBecomeActiveNotification object:nil];
+}
+
+- (void)playerWillResignActive {
+    _isBackground = YES;
+}
+
+- (void)playerDidEnterForeground {
+    _isBackground = NO;
+}
+
+#pragma mark - 息屏播放（通知栏、锁屏界面）
+- (void)addPlayingCenterInfo {
+    _remoteInfoDictionary = [NSMutableDictionary dictionary];
+    
+    SubAudioModel *audioModel = self.playAudios[self.currentIndex];
+    
+    _remoteInfoDictionary[MPMediaItemPropertyTitle] = audioModel.audio_name;
+    _remoteInfoDictionary[MPMediaItemPropertyAlbumTitle] = @"小梦睡眠";
+    NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:audioModel.audio_pic]];
+    UIImage *artworkImg = [UIImage imageWithData:imageData];
+    MPMediaItemArtwork *artwork = [[MPMediaItemArtwork alloc] initWithBoundsSize:artworkImg.size requestHandler:^UIImage * _Nonnull(CGSize size) {
+        return artworkImg;
+    }];
+    _remoteInfoDictionary[MPMediaItemPropertyArtwork] = artwork;
+    _remoteInfoDictionary[MPNowPlayingInfoPropertyPlaybackRate] = [NSNumber numberWithFloat:1.0];
+    [MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = _remoteInfoDictionary;
+}
+
+- (void)updatePlayingCenterInfo {
+    if (!_isBackground) {return;}
+    _remoteInfoDictionary[MPNowPlayingInfoPropertyElapsedPlaybackTime] = [NSNumber numberWithDouble:self.audioStream.currentTimePlayed.playbackTimeInSeconds];
+    _remoteInfoDictionary[MPMediaItemPropertyPlaybackDuration] = [NSNumber numberWithDouble:self.audioStream.duration.playbackTimeInSeconds];
+    [MPNowPlayingInfoCenter defaultCenter].nowPlayingInfo = _remoteInfoDictionary;
+}
+
+- (void)addRemoteControlHandler {
+    [[UIApplication sharedApplication] beginReceivingRemoteControlEvents];
+    MPRemoteCommandCenter *center = [MPRemoteCommandCenter sharedCommandCenter];
+    [self addRemoteCommand:center.playCommand selector:@selector(play)];
+    [self addRemoteCommand:center.pauseCommand selector:@selector(pause)];
+    [self addRemoteCommand:center.previousTrackCommand selector:@selector(last)];
+    [self addRemoteCommand:center.nextTrackCommand selector:@selector(next)];
+}
+
+- (void)addRemoteCommand:(MPRemoteCommand *)command selector:(SEL)selector {
+    WS(weaksSelf);
+    [command addTargetWithHandler:^MPRemoteCommandHandlerStatus(MPRemoteCommandEvent * _Nonnull event) {
+        if ([weaksSelf respondsToSelector:selector]) {
+            IMP imp = [weaksSelf methodForSelector:selector];
+            void (*func)(id, SEL) = (void *)imp;
+            func(weaksSelf, selector);
+        }
+        return MPRemoteCommandHandlerStatusSuccess;
+    }];
+}
+
+- (void)play {
+    if (self.streamState == kFsAudioStreamStopped || self.streamState == kFsAudioStreamRetrievingURL) {
+        [self.audioStream play];
+    }  else if (self.streamState == kFsAudioStreamPaused) {
+        // 恢复播放
+        [self.audioStream pause];
+    }
+    
+    [self didClickRemoteCommandCenter];
+}
+
+- (void)pause {
+    if (self.streamState == kFsAudioStreamPlaying) {
+        // 暂停播放
+        [self.audioStream pause];
+    }
+    
+    [self didClickRemoteCommandCenter];
+}
+
+- (void)last {
+    if (self.currentIndex - 1 < 0) {
+        [DSProgressHUD showToast:@"没有上一首了"];
+        return;
+    }
+    self.currentIndex--;
+    [self launchPlayer];
+}
+
+- (void)next {
+    if (self.currentIndex + 1 >= self.playAudios.count) {
+        [DSProgressHUD showToast:@"没有下一首了"];
+        return;
+    }
+    self.currentIndex++;
+    [self launchPlayer];
+}
+
+- (void)didClickRemoteCommandCenter {
+    NSInteger playingIndex = self.audioStream.isPlaying ? self.currentIndex : -1;
+    [[NSNotificationCenter defaultCenter] postNotificationName:RemoteCommandCenterDidClick object:nil userInfo:@{@"playingIndex":@(playingIndex)}];
 }
 
 #pragma mark - private
@@ -108,6 +233,8 @@
     
     // 更新音频播放进度、音频当前播放时间、音频总时间
     [self.playerView updateProgress:cur.position currentTime:[NSString stringWithFormat:@"%02i:%02i", cur.minute, cur.second] totalTime:[NSString stringWithFormat:@"%02i:%02i", end.minute, end.second]];
+    
+    [self updatePlayingCenterInfo];
 }
 
 - (void)audioStreamPlaybackCompleted {
@@ -137,13 +264,15 @@
 }
 
 - (void)launchPlayer {
-    // 不是正在播放的状态需要先停止
-    if (self.audioStream.isPlaying == NO) { [self.audioStream stop]; }
+    [self.audioStream stop];
     
     if (self.currentIndex >= self.playAudios.count) { return; }
     SubAudioModel *audioModel = self.playAudios[self.currentIndex];
     [self.playerView updatePlayerView:audioModel];
     [self.audioStream playFromURL:[NSURL URLWithString:audioModel.audio_url]];
+    
+    // 设置音频锁屏界面信息
+    [self addPlayingCenterInfo];
 }
 
 #pragma mark - MusicPlayerViewDelegate
@@ -170,12 +299,7 @@
     switch (item.tag) {
         case 1: // 上一首
         {
-            if (self.currentIndex - 1 < 0) {
-                [DSProgressHUD showToast:@"没有上一首了"];
-                return;
-            }
-            self.currentIndex--;
-            [self launchPlayer];
+            [self last];
         }
             break;
         case 2: // 播放暂停
@@ -193,12 +317,7 @@
             break;
         case 3: // 下一首
         {
-            if (self.currentIndex + 1 >= self.playAudios.count) {
-                [DSProgressHUD showToast:@"没有下一首了"];
-                return;
-            }
-            self.currentIndex++;
-            [self launchPlayer];
+            [self next];
         }
             break;
         default: