如何在录制iphone5 IOS时使用振动？ [英] how to use Vibration while recording iphone5 IOS?
问题描述
我正在开发iphone5应用程序，我需要一些关于振动电机的建议。
i护目镜，但无法找到我如何从代码手动旋转我的iPhone。请指导我...或提供任何链接或想法..
I am working on a iphone5 app and i need some advice on the vibration motor. i goggled the things but cant find how can i manually rotate my iPhone from the code.please guide me... or give any link or ideas..
我想做的是在录制视频的同时振动手机。
What i want to do is vibrate the phone while recordign the video .
但我的问题是当我开始振动时它无法重新录制视频..我发现它会当音频正在捕捉运行时不起作用..所以我尝试在录音时静音但是它仍然不能正常工作
but my problem is when i start the vibration it cant recrod the video.. i found that it will not work when audio is capturing running.. so i tried with mute the sound while recording but its not working still
以下是我的代码..
//
// APPViewController.m
//
//
// Created by Rafael Garcia Leiva on 29/04/13.
// Copyright (c) 2013 Appcoda. All rights reserved.
//
#import "APPViewController.h"
#import <AudioToolbox/AudioToolbox.h>
#import <AVFoundation/AVFoundation.h>
@interface APPViewController ()
@end
@implementation APPViewController
- (void)viewDidLoad {
[super viewDidLoad];
}
- (void)viewDidAppear:(BOOL)animated {
self.movieController = [[MPMoviePlayerController alloc] init];
[self.movieController setContentURL:self.movieURL];
[self.movieController.view setFrame:CGRectMake ( 0, 0, 320, 476)];
[self.view addSubview:self.movieController.view];
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(moviePlayBackDidFinish:)
name:MPMoviePlayerPlaybackDidFinishNotification
object:self.movieController];
[[MPMusicPlayerController applicationMusicPlayer] setVolume:0];
[self.movieController play];
[self setupAudio];
}
- (IBAction)takeVideo:(UIButton *)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.mediaTypes = [[NSArray alloc] initWithObjects: (NSString *) kUTTypeMovie, nil];
[self presentViewController:picker animated:YES completion:NULL];
while(TRUE){
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
}
- (void)setupAudio {
[[AVAudioSession sharedInstance] setCategory: AVAudioSessionCategoryPlayback error: nil];
UInt32 doSetProperty = 1;
AudioSessionSetProperty (kAudioSessionProperty_OverrideCategoryMixWithOthers, sizeof(doSetProperty), &doSetProperty);
[[AVAudioSession sharedInstance] setActive: YES error: nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
self.movieURL = info[UIImagePickerControllerMediaURL];
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)moviePlayBackDidFinish:(NSNotification *)notification {
[[NSNotificationCenter defaultCenter]removeObserver:self name:MPMoviePlayerPlaybackDidFinishNotification object:nil];
[self.movieController stop];
[self.movieController.view removeFromSuperview];
self.movieController = nil;
}
@end
我是振动我的手机，但它的工作振动或视频录制...如果视频将录制没有声音，那么即使它对我来说是好的..
i am vibrating my phone with this but its working vibrating or video recording...if video will record with no sound then even its ok for me..
while(TRUE){
AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);
}
谢谢
推荐答案
我猜测录制API可能会在内部禁用振动（以及其他系统声音），因为录制过程中的振动会严重降低录制的视频和音频质量。
I'm guessing the recording APIs might internally disable vibration (and other system sounds too) because vibration during recording would seriously degrade the video and audio quality of the recording.
当然我只是在猜测。这似乎是Apple可能会做的事情，我认为在大多数情况下这就是你想要的东西（例如，你不希望录音被传入的短信或电话破坏）。我很好奇为什么你想在录音期间振动设备 - 是否有特殊效果？
Of course I'm only guessing. That seems like the sort of thing Apple might do, and I think in most cases that's what you would want (e.g., you wouldn't want a recording to be ruined by an incoming text message or phone call). I'm curious why you want to vibrate the device during recording - is it for a special effect?
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