增加录制语音10秒倒计时的小功能

Example/MessageDisplayKitCoreDataExample/MessageDisplayKitCoreDataExample/MessageDisplayKitCoreDataExample-Info.plist

@@ -44,5 +44,10 @@
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
 	</array>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
+	</dict>
 </dict>
 </plist>

Example/MessageDisplayKitLeanchatExample/MessageDisplayKitLeanchatExample/Info.plist

@@ -34,6 +34,8 @@
 				<true/>
 			</dict>
 		</dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
 	</dict>
 	<key>UILaunchStoryboardName</key>
 	<string>LaunchScreen</string>

Example/MessageDisplayKitStoryBoradExample/MessageDisplayKitStoryBoradExample/MessageDisplayKitStoryBoradExample-Info.plist

@@ -49,5 +49,10 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
+	</dict>
 </dict>
 </plist>

Example/MessageDisplayKitWeChatExample/MessageDisplayKitWeChatExample/Info.plist

@@ -37,5 +37,10 @@
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
+	<key>NSAppTransportSecurity</key>
+	<dict>
+		<key>NSAllowsArbitraryLoads</key>
+		<true/>
+	</dict>
 </dict>
 </plist>

MessageDisplayKit/Classes/Common/XHVoiceRecordHelper.h

@@ -16,13 +16,15 @@ typedef void(^XHResumeRecorderCompletion)();
 typedef void(^XHCancellRecorderDeleteFileCompletion)();
 typedef void(^XHRecordProgress)(float progress);
 typedef void(^XHPeakPowerForChannel)(float peakPowerForChannel);
+typedef void(^XHRecordingRemainTime)(NSInteger remainTime);
 
 
 @interface XHVoiceRecordHelper : NSObject
 
 @property (nonatomic, copy) XHStopRecorderCompletion maxTimeStopRecorderCompletion;
 @property (nonatomic, copy) XHRecordProgress recordProgress;
 @property (nonatomic, copy) XHPeakPowerForChannel peakPowerForChannel;
+@property (nonatomic, copy) XHRecordingRemainTime remainTime;
 @property (nonatomic, copy, readonly) NSString *recordPath;
 @property (nonatomic, copy) NSString *recordDuration;
 @property (nonatomic) float maxRecordTime; // 默认 60秒为最大

MessageDisplayKit/Classes/Common/XHVoiceRecordHelper.m

@@ -12,7 +12,7 @@
 
 @interface XHVoiceRecordHelper () <AVAudioRecorderDelegate> {
     NSTimer *_timer;
-
+    NSTimer *_recordTimer;
     BOOL _isPause;
 
 #if TARGET_IPHONE_SIMULATOR || TARGET_OS_IPHONE
@@ -22,7 +22,7 @@ @interface XHVoiceRecordHelper () <AVAudioRecorderDelegate> {
 
 @property (nonatomic, copy, readwrite) NSString *recordPath;
 @property (nonatomic, readwrite) NSTimeInterval currentTimeInterval;
-
+@property (nonatomic, readwrite) NSInteger remainRecordTime;
 @property (nonatomic, strong) AVAudioRecorder *recorder;
 
 @end
@@ -67,14 +67,18 @@ - (void)stopBackgroundTask {
 }
 
 - (void)resetTimer {
-    if (!_timer)
+    if (!_timer && !_recordTimer)
         return;
 
     if (_timer) {
         [_timer invalidate];
         _timer = nil;
     }
 
+    if (_recordTimer) {
+        [_recordTimer invalidate];
+        _recordTimer = nil;
+    }
 }
 
 - (void)cancelRecording {
@@ -155,6 +159,8 @@ - (void)startRecordingWithStartRecorderCompletion:(XHStartRecorderCompletion)sta
     if ([_recorder record]) {
         [self resetTimer];
         _timer = [NSTimer scheduledTimerWithTimeInterval:0.05 target:self selector:@selector(updateMeters) userInfo:nil repeats:YES];
+        _remainRecordTime = kVoiceRecorderTotalTime;
+        _recordTimer = [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(updateCurrentLeftTime) userInfo:nil repeats:YES];
         if (startRecorderCompletion)
             dispatch_async(dispatch_get_main_queue(), ^{
                 startRecorderCompletion();
@@ -240,12 +246,19 @@ - (void)updateMeters {
         double ALPHA = 0.015;
         double peakPowerForChannel = pow(10, (ALPHA * peakPower));
 
-        dispatch_async(dispatch_get_main_queue(), ^{
-            // 更新扬声器
-            if (_peakPowerForChannel) {
-                _peakPowerForChannel(peakPowerForChannel);
-            }
-        });
+        // 返回录音剩余时间
+        if (self.remainRecordTime <= 10) {
+            dispatch_async(dispatch_get_main_queue(), ^{
+                _remainTime(self.remainRecordTime);
+            });
+        } else {
+            dispatch_async(dispatch_get_main_queue(), ^{
+                // 更新扬声器
+                if (_peakPowerForChannel) {
+                    _peakPowerForChannel(peakPowerForChannel);
+                }
+            });
+        }
 
         if (self.currentTimeInterval > self.maxRecordTime) {
             [self stopRecord];
@@ -256,6 +269,16 @@ - (void)updateMeters {
     });
 }
 
+/// 实时更新当前录音的剩余时间
+- (void)updateCurrentLeftTime {
+    if (self.remainRecordTime >= 0) {
+        self.remainRecordTime --;
+    } else {
+        [_recordTimer invalidate];
+        _recordTimer = nil;
+    }
+}
+
 - (void)getVoiceDuration:(NSString*)recordPath {
     NSError *error = nil;
     AVAudioPlayer *play = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:recordPath] error:&error];
@@ -264,7 +287,7 @@ - (void)getVoiceDuration:(NSString*)recordPath {
         self.recordDuration = @"";
     } else {
         DLog(@"时长:%f", play.duration);
-        self.recordDuration = [NSString stringWithFormat:@"%.1f", play.duration];
+        self.recordDuration = [NSString stringWithFormat:@"%d", (int)roundf(play.duration)];
     }
 }
 

MessageDisplayKit/Classes/Controllers/XHMessageTableViewController/XHMessageTableViewController.m

@@ -403,6 +403,9 @@ - (XHVoiceRecordHelper *)voiceRecordHelper {
         _voiceRecordHelper.peakPowerForChannel = ^(float peakPowerForChannel) {
             weakSelf.voiceRecordHUD.peakPower = peakPowerForChannel;
         };
+        _voiceRecordHelper.remainTime = ^(NSInteger remainTime) {
+            weakSelf.voiceRecordHUD.remainTime = remainTime;
+        };
         _voiceRecordHelper.maxRecordTime = kVoiceRecorderTotalTime;
     }
     return _voiceRecordHelper;

MessageDisplayKit/Classes/Views/MessageInputView/XHVoiceRecordHUD.h

@@ -10,7 +10,8 @@
 
 @interface XHVoiceRecordHUD : UIView
 
-@property (nonatomic, assign) CGFloat peakPower;
+@property (nonatomic, assign) NSInteger remainTime; // 录音剩余时间
+@property (nonatomic, assign) CGFloat peakPower; // 录音时声音分贝大小
 
 /**
  *  开始显示录音HUD控件在某个view

MessageDisplayKit/Classes/Views/MessageInputView/XHVoiceRecordHUD.m

@@ -11,6 +11,7 @@
 @interface XHVoiceRecordHUD ()
 
 @property (nonatomic, weak) UILabel *remindLabel;
+@property (nonatomic, weak) UILabel *remainTimeLabel;
 @property (nonatomic, weak) UIImageView *microPhoneImageView;
 @property (nonatomic, weak) UIImageView *cancelRecordImageView;
 @property (nonatomic, weak) UIImageView *recordingHUDImageView;
@@ -82,9 +83,14 @@ - (void)dismissCompled:(void(^)(BOOL fnished))compled {
 }
 
 - (void)configRecoding:(BOOL)recording {
-    self.microPhoneImageView.hidden = !recording;
-    self.recordingHUDImageView.hidden = !recording;
-    self.cancelRecordImageView.hidden = recording;
+    if (self.remainTime > 0) {
+        [self configViewsWithRemainTime:self.remainTime];
+    } else {
+        self.microPhoneImageView.hidden = !recording;
+        self.recordingHUDImageView.hidden = !recording;
+        self.cancelRecordImageView.hidden = recording;
+        self.remainTimeLabel.hidden = recording;
+    }
 }
 
 - (void)configRecordingHUDImageWithPeakPower:(CGFloat)peakPower {
@@ -109,11 +115,24 @@ - (void)configRecordingHUDImageWithPeakPower:(CGFloat)peakPower {
     self.recordingHUDImageView.image = [UIImage imageNamed:imageName];
 }
 
+- (void)configViewsWithRemainTime:(NSInteger)remainTime {
+    self.microPhoneImageView.hidden = YES;
+    self.recordingHUDImageView.hidden = YES;
+    self.cancelRecordImageView.hidden = YES;
+    self.remainTimeLabel.hidden = NO;
+    self.remainTimeLabel.text = @(remainTime).stringValue;
+}
+
 - (void)setPeakPower:(CGFloat)peakPower {
     _peakPower = peakPower;
     [self configRecordingHUDImageWithPeakPower:peakPower];
 }
 
+- (void)setRemainTime:(NSInteger)remainTime {
+    _remainTime = remainTime;
+    [self configViewsWithRemainTime:remainTime];
+}
+
 - (void)setup {
     self.backgroundColor = [UIColor blackColor];
     self.layer.masksToBounds = YES;
@@ -160,6 +179,16 @@ - (void)setup {
         [self addSubview:cancelRecordImageView];
         _cancelRecordImageView = cancelRecordImageView;
     }
+
+    if (!_remainTimeLabel) {
+        UILabel *remainTimeLabel = [[UILabel alloc] initWithFrame:CGRectMake(10, 10, 120, 110)];
+        remainTimeLabel.backgroundColor = [UIColor clearColor];
+        remainTimeLabel.textColor = [UIColor whiteColor];
+        remainTimeLabel.textAlignment = NSTextAlignmentCenter;
+        remainTimeLabel.font = [UIFont systemFontOfSize:60];
+        [self addSubview:remainTimeLabel];
+        _remainTimeLabel = remainTimeLabel;
+    }
 }
 
 - (id)initWithFrame:(CGRect)frame {