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播放本地音频
#import "AudioViewController.h"
#import "MyUtility.h"
#import <AVFoundation/AVFoundation.h>
@interface AudioViewController ()
{
// 音频播放
AVAudioPlayer *_player;
// 滑块
UISlider *_slider;
// 定时器
NSTimer *_timer;
}
@end
@implementation AudioViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 播放按钮
UIButton *playBtn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"播放" target:self action:@selector(playAction:)];
// 暂停按钮
UIButton *pauseBtn = [MyUtility creatBtnFrame:CGRectMake(100, 200, 80, 40) title:@"暂停" target:self action:@selector(pauseAction:)];
// 停止按钮
UIButton *stopBtn = [MyUtility creatBtnFrame:CGRectMake(100, 300, 80, 40) title:@"停止" target:self action:@selector(stopAction:)];
[self.view addSubview:playBtn];
[self.view addSubview:pauseBtn];
[self.view addSubview:stopBtn];
// 初始化定时器
_timer = [NSTimer scheduledTimerWithTimeInterval:0.5 target:self selector:@selector(timeAction:) userInfo:nil repeats:YES];
// 创建滑块对象
_slider = [[UISlider alloc] initWithFrame:CGRectMake(50, 400, 300, 20)];
[self.view addSubview:_slider];
// 添加事件
[_slider addTarget:self action:@selector(slideAction:) forControlEvents:UIControlEventValueChanged];
}
- (void)timeAction:(id)sender
{
if (_player) {
_slider.value = _player.currentTime;
}
}
- (void)dealloc
{
if (_timer) {
[_timer invalidate];
}
}
- (void)slideAction:(id)sender
{
// 滑动时, 让音频播放到对应的位置
if (_player) {
_player.currentTime = _slider.value;
}
}
- (void)playAction:(id)sender
{
// 播放本地音频
NSString *path = [[NSBundle mainBundle] pathForResource:@"song" ofType:@"mp3"];
NSURL *url = [NSURL fileURLWithPath:path];
_player = [[AVAudioPlayer alloc] initWithContentsOfURL:url error:nil];
// 设置滑块的最大值
_slider.maximumValue = _player.duration;
// 播放
[_player prepareToPlay];
[_player play];
}
- (void)pauseAction:(id)sender
{
[_player pause];
}
- (void)stopAction:(id)sender
{
[_player stop];
_player.currentTime = 0;
}
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播放视频
#import "VideoViewController.h"
#import "MyUtility.h"
#import <MediaPlayer/MediaPlayer.h>
@interface VideoViewController ()
@property (nonatomic, strong) MPMoviePlayerViewController *moviePlayer;
@end
@implementation VideoViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 播放本地视频按钮
UIButton *localBtn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"本地视频" target:self action:@selector(playLocal:)];
// 播放网络视频按钮
UIButton *netBtn = [MyUtility creatBtnFrame:CGRectMake(100, 200, 80, 40) title:@"网络视频" target:self action:@selector(playNet:)];
[self.view addSubview:localBtn];
[self.view addSubview:netBtn];
self.view.backgroundColor = [UIColor whiteColor];
}
- (void)playLocal:(id)sender
{
// 本地路径
NSString *path = [[NSBundle mainBundle] pathForResource:@"1" ofType:@"mp4"];
NSURL *fileUrl = [NSURL fileURLWithPath:path];
// 初始化播放对象
_moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:fileUrl];
// 播放
[_moviePlayer.moviePlayer prepareToPlay];
[_moviePlayer.moviePlayer play];
// 显示
[self presentViewController:_moviePlayer animated:YES completion:nil];
}
- (void)playNet:(id)sender
{
// http://121.40.54.251:280/zhangchu/video/mp4/liangbanniuxinA.mp4
NSURL *url = [NSURL URLWithString:@"http://121.40.54.251:280/zhangchu/video/mp4/liangbanniuxinA.mp4"];
if (_moviePlayer) {
[_moviePlayer.moviePlayer stop];
_moviePlayer = nil;
}
_moviePlayer = [[MPMoviePlayerViewController alloc] initWithContentURL:url];
// 播放
[_moviePlayer.moviePlayer prepareToPlay];
[_moviePlayer.moviePlayer play];
// 显示
[self presentViewController:_moviePlayer animated:YES completion:nil];
}
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录音
#import "RecordViewController.h"
#import "MyUtility.h"
#import <AVFoundation/AVFoundation.h>
@interface RecordViewController ()
// 录音
@property (nonatomic, strong) AVAudioRecorder *recoder;
@property (nonatomic, strong) AVAudioPlayer *player;
@end
@implementation RecordViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 录音按钮
UIButton *recordBtn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"录音" target:self action:@selector(recordAction:)];
// 停止录音按钮
UIButton *stopBtn = [MyUtility creatBtnFrame:CGRectMake(100, 200, 80, 40) title:@"停止" target:self action:@selector(stopAction:)];
// 播放按钮
UIButton *playBtn = [MyUtility creatBtnFrame:CGRectMake(100, 300, 80, 40) title:@"播放" target:self action:@selector(playAction:)];
[self.view addSubview:recordBtn];
[self.view addSubview:stopBtn];
[self.view addSubview:playBtn];
self.view.backgroundColor = [UIColor whiteColor];
}
// 获取录制音频文件的路径
- (NSString *)creatPath
{
NSString *path = [NSHomeDirectory() stringByAppendingString:@"Document/test.wav"];
NSLog(@"%@", path);
return path;
}
- (void)recordAction:(id)sender
{
// 录音
// 1. 路径
// 2. 属性
NSMutableDictionary *dict = [NSMutableDictionary dictionary];
// 1) 格式
[dict setObject:[NSNumber numberWithInt:kAudioFormatLinearPCM] forKey:AVFormatIDKey];
// 2) 采样率
[dict setObject:[NSNumber numberWithInt:1000] forKey:AVSampleRateKey];
// 3) 声道
[dict setObject:[NSNumber numberWithInt:2] forKey:AVNumberOfChannelsKey];
// 4) 采样位数
[dict setObject:[NSNumber numberWithInt:32] forKey:AVLinearPCMBitDepthKey];
// 5) 是否采用高位优先的采样方式
[dict setObject:[NSNumber numberWithBool:YES] forKey:AVLinearPCMIsBigEndianKey];
// 6) 是否采用浮点数
[dict setObject:[NSNumber numberWithBool:YES] forKey:AVLinearPCMIsFloatKey];
/*
第一个参数: 录制文件存储的位置
第二个参数: 录制的属性
第三个参数: 错误信息
*/
_recoder = [[AVAudioRecorder alloc] initWithURL:[NSURL fileURLWithPath:[self creatPath]] settings:dict error:nil];
// 录制
[_recoder prepareToRecord];
[_recoder record];
#warning 真机
AVAudioSession *session = [AVAudioSession sharedInstance];
[session setCategory:AVAudioSessionCategoryPlayAndRecord error:nil];
[session setActive:YES error:nil];
}
- (void)stopAction:(id)sender
{
[_recoder stop];
}
- (void)playAction:(id)sender
{
_player = [[AVAudioPlayer alloc] initWithContentsOfURL:[NSURL fileURLWithPath:[self creatPath]] error:nil];
[_player prepareToPlay];
[_player play];
}
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从相册选择图片
#import "AlbumViewController.h"
#import "MyUtility.h"
@interface AlbumViewController () <UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@end
@implementation AlbumViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 按钮, 点击弹出相册选择界面
UIButton *btn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"相册" target:self action:@selector(showAlbum:)];
[self.view addSubview:btn];
self.view.backgroundColor = [UIColor whiteColor];
// 图片视图
UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(80, 200, 200, 100)];
imgView.tag = 200;
[self.view addSubview:imgView];
}
- (void)showAlbum:(id)sender
{
// 显示相册
UIImagePickerController *ctrl = [[UIImagePickerController alloc] init];
// 设置类型
ctrl.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
// 设置代理
ctrl.delegate = self;
// 显示相册
[self presentViewController:ctrl animated:YES completion:nil];
}
#pragma mark - UIImagePickerController代理
// 点击取消按钮调用
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:nil];
}
// 选中一张图片的时候调用
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// 获取图片对象
UIImage *image = info[UIImagePickerControllerOriginalImage];
// 显示出来
UIImageView *myImageView = (UIImageView *)[self.view viewWithTag:200];
myImageView.image = image;
[picker dismissViewControllerAnimated:YES completion:nil];
}
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拍照
#import "TakePhotoViewController.h"
#import "MyUtility.h"
@interface TakePhotoViewController () <UIImagePickerControllerDelegate, UINavigationControllerDelegate>
@end
@implementation TakePhotoViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 按钮, 点击弹出相册选择界面
UIButton *btn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"拍照" target:self action:@selector(takePhoto:)];
[self.view addSubview:btn];
self.view.backgroundColor = [UIColor whiteColor];
}
// 拍照
- (void)takePhoto:(id)sender
{
UIImagePickerController *ctrl = [[UIImagePickerController alloc] init];
// 设置代理
ctrl.delegate = self;
// 设置类型
ctrl.sourceType = UIImagePickerControllerSourceTypeCamera;
// 设置为拍照(跟录视频区分)
ctrl.cameraCaptureMode = UIImagePickerControllerCameraCaptureModePhoto;
// 显示出来
[self presentViewController:ctrl animated:YES completion:nil];
}
#pragma mark - UIImagePickerController代理方法
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
UIImage *image = info[UIImagePickerControllerOriginalImage];
// 存储到相册
UIImageWriteToSavedPhotosAlbum(image, self, nil, nil);
[picker dismissViewControllerAnimated:YES completion:nil];
}
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录视频
#import "VideoRecordViewController.h"
#import "MyUtility.h"
#import <AssetsLibrary/AssetsLibrary.h>
@interface VideoRecordViewController () <UINavigationControllerDelegate, UIImagePickerControllerDelegate>
@end
@implementation VideoRecordViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view.
// 按钮, 点击弹出相册选择界面
UIButton *btn = [MyUtility creatBtnFrame:CGRectMake(100, 100, 80, 40) title:@"📹" target:self action:@selector(videoRecord:)];
[self.view addSubview:btn];
self.view.backgroundColor = [UIColor whiteColor];
}
// 录制视频
- (void)videoRecord:(id)sender
{
UIImagePickerController *ctrl = [[UIImagePickerController alloc] init];
// 代理
ctrl.delegate = self;
// 类型
ctrl.sourceType = UIImagePickerControllerSourceTypeCamera;
// 媒体类型
ctrl.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:UIImagePickerControllerSourceTypeCamera];
// 设置为录视频
ctrl.cameraCaptureMode = UIImagePickerControllerCameraCaptureModeVideo;
// 显示
[self presentViewController:ctrl animated:YES completion:nil];
}
#pragma mark - UIImagePickerController代理方法
-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
[picker dismissViewControllerAnimated:YES completion:nil];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
// 获取视频的地址
NSURL *url = info[UIImagePickerControllerMediaURL];
// 存到相册里
ALAssetsLibrary *library = [[ALAssetsLibrary alloc] init];
[library writeVideoAtPathToSavedPhotosAlbum:url completionBlock:^(NSURL *assetURL, NSError *error) {
NSLog(@"%@", error);
}];
[picker dismissViewControllerAnimated:YES completion:nil];
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
