紅色錄音棒扭曲視圖

Question

我有一段時間搞清楚了這一點。

我有一個模式視圖，當點擊一個選項卡欄的標籤時出現。在接管整個屏幕的新視圖中，用戶點擊一個按鈕即可開始錄製音頻，當它們完成錄製音頻或取消錄製時，模式視圖將被解除。

問題是，一旦他們開始錄製，該紅色錄製條應該出現在這個新視圖上。但事實並非如此。一旦視圖被解除，在下一個顯示的視圖中（一個表格視圖，在其中一個選項卡中可以找到），您可以在上方看到紅色的錄製欄，並且它會消失，但它會消失將標籤欄向下推到屏幕上並遮擋標籤欄的一部分，您可以在下面的第三個屏幕截圖中看到該標籤欄。

模式的看法彈出 - 記錄正在進行中，但紅色的錄音指示燈不頂部

顯示權當完成錄音後，視圖是即將消失，紅酒吧出現

而且一旦視圖消失，我們剩下的生活在其中一個選項卡的表視圖，標籤欄被擠過來的屏幕底部:(它應該看起來像這樣（與第四個選項卡）： 個

我的問題：

1）我在做什麼錯誤是造成紅色記錄欄的模態視圖顯示不出來？

2）有沒有辦法從屏幕截圖中刷新這個視圖，這樣當它出現時，它會正確調整大小？

這是代碼。我刪除了一些不涉及視圖的非重要內容。

@interface AudioViewController() 

@end 

@implementation AudioViewController 

@synthesize fileData; 

UILabel *countdownLabel; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 
    self.friendsRelation = [[PFUser currentUser] objectForKey:@"friendsRelation"]; 
    self.recipients = [[NSMutableArray alloc] init]; 
} 


- (void) viewWillAppear:(BOOL)animated { 

    [super viewWillAppear:animated]; 

    self.audioPicker = [[UIViewController alloc] init]; 
    self.audioPicker.view.backgroundColor = [UIColor yellowColor]; 

    self.friendsRelation = [[PFUser currentUser] objectForKey:@"friendsRelation"]; 
    PFQuery *query = [self.friendsRelation query]; 
    [query orderByAscending:@"username"]; 
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) { 
     if (error) { 
      NSLog(@"Error %@ %@", error, [error userInfo]); 
     } 
     else { 
      self.friends = objects; 
      [self.tableView reloadData]; 
     } 
    }]; 

    UIButton *cancelBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    cancelBtn.frame = CGRectMake(50.0, 200.0, 200.0, 200.0); 
    cancelBtn.titleLabel.font = [UIFont systemFontOfSize:20]; 
    [cancelBtn setTitle:@"Cancel" forState:UIControlStateNormal]; 
    [self.audioPicker.view addSubview:cancelBtn]; 
    cancelBtn.center = CGPointMake(self.view.center.x, 400); 
    [cancelBtn addTarget:self action:@selector(exitRecordingScreen) forControlEvents:UIControlEventTouchUpInside]; 

    UIButton *recordBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect]; 
    recordBtn.frame = CGRectMake(50.0, 50.0, 200.0, 200.0); 
    recordBtn.titleLabel.font = [UIFont systemFontOfSize:50]; 
    [recordBtn setTitle:@"Record" forState:UIControlStateNormal]; 
    recordBtn.center = CGPointMake(self.view.center.x, 100); 
    [self.audioPicker.view addSubview:recordBtn]; 

    if ([self respondsToSelector:@selector(timeout)]) { 
     [NSTimer scheduledTimerWithTimeInterval:1.0 target:self selector:@selector(timeout) userInfo:nil repeats:NO]; 
    } else { 
     NSLog(@"Error: missing selector"); 
    } 

    AVAudioSession *session = [AVAudioSession sharedInstance]; 

    [session setCategory:AVAudioSessionCategoryPlayAndRecord 
      withOptions:AVAudioSessionCategoryOptionDuckOthers 
        error:nil]; 

    if (!fileData) { 
     [self presentViewController:self.audioPicker animated:NO completion:nil]; 
     NSLog(@"File data: %@", fileData); 
     [recordBtn addTarget:self action:@selector(startRecordingAudio) forControlEvents:UIControlEventTouchUpInside]; 
    } else { 
     NSLog(@"Existing File data: %@", fileData); 
    } 
} 

- (void) timeout { 

    [self.navigationController popViewControllerAnimated:YES]; 
} 

# pragma mark - Audio Recording Methods 

//////// 
// Removed some stuff here that is not manipulating views 
//////// 

- (void) stopRecordingOnAudioRecorder:(AVAudioRecorder *)paramRecorder{ 
    /* Just stop the audio recorder here */ 
    [paramRecorder stop]; 
    [self dismissViewControllerAnimated:YES completion:nil]; 
} 

- (void)audioRecorderDidFinishRecording:(AVAudioRecorder *)recorder 
          successfully:(BOOL)flag{ 
    if (flag) { 
     NSLog(@"Stopped recording process"); 
     NSError *playbackError = nil; 
     NSError *readingError = nil; 
     fileData = [NSData dataWithContentsOfURL:[self audioRecordingPath] 
           options:NSDataReadingMapped 
           error:&readingError]; 

     self.audioPlayer = [[AVAudioPlayer alloc] initWithData:fileData 
                 error:&playbackError]; 

     if (self.audioPlayer != nil) { 
      self.audioPlayer.delegate = self; 

      //Prepare and start playing 
      if ([self.audioPlayer prepareToPlay] && [self.audioPlayer play]) { 
       NSLog(@"Started playing recorded audio"); 
      } else { 
       NSLog(@"Couldn't play recorded audio"); 
      } 


     } else { 
      NSLog(@"Failed to create audio player"); 
     } 
    } else { 
     NSLog(@"Stopping audio recording failed"); 
    } 
    self.audioRecorder = nil; 
} 

- (void)audioPlayerDidFinishPlaying:(AVAudioPlayer *)player 
         successfully:(BOOL)flag{ 
    if (flag){ 
     NSLog(@"Audio player stopped correctly."); 
    } else { 
     NSLog(@"Audio player did not stop correctly."); 
    } 
    if ([player isEqual:self.audioPlayer]){ 
     self.audioPlayer = nil; 
    } else { 
     /* This is not the player */ 
    } 
} 

# pragma mark - TableView methods 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    // Return the number of sections. 
    return 1; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return [self.friends count]; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath]; 

    PFUser *user = [self.friends objectAtIndex:indexPath.row]; 
    cell.textLabel.text = user.username; 

    // makes sure checkmark isn't reused if user didn't explicitly select name 
    if ([self.recipients containsObject:user.objectId]) { 
     cell.accessoryType = UITableViewCellAccessoryCheckmark; 
    } else { 
     cell.accessoryType = UITableViewCellAccessoryNone; 
    } 

    return cell; 
} 

- (void)reset { 
    self.audioFile = nil; 
} 

// User hits "Cancel" button 
-(void)exitRecordingScreen { 
    [self reset]; 
    [self.presentedViewController dismissViewControllerAnimated:NO completion:nil]; 
    [self.tabBarController setSelectedIndex:0]; 
    NSLog(@"exit recording screen button pressed"); 

} 

- (IBAction)send:(id)sender { 
    if (self.audioFile == nil) { 
     UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Please try again." message:@"Please record audio again to share." delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil]; 

     [alertView show]; 
     [self presentViewController:self.audioPicker animated:NO completion:nil]; 
    } else { 
     [self uploadMessage]; 
     [self.tabBarController setSelectedIndex:0]; 
    } 
} 
// Cancel sending recorded file 
- (void)cancel:(id)sender { 
    fileData = nil; 
    [self reset]; 
    [self.tabBarController setSelectedIndex:0]; 
} 

@end 

對不起，對於文本牆和長度。我真的很難過。

Answer 1

解決方案：您必須重置UITabBarController的幀。 1.最初UITabBarController的幀將是（0,0，screenWidth，screenHeight）。 2.但是，當這種記錄紅槓出現就成了（0,20，屏幕寬度，screenHeight） 3.在這裏，你應該改變高度的UITabBarController

的CGRect changedFrame = objMainTabBarController.view.frame; changedFrame.size.height = [UIScreen mainScreen] .bounds.size.height - CGRectGetMinY（changedFrame）; objMainTabBarController.view.frame = changedFrame;

就是這樣..