OC音频&视频

音频和视频在最新设备中非常普遍。 iOS分别在 AVFoundation.framework 和 MediaPlayer.framework 的帮助下支持它。

涉及步骤

步骤2- 选择项目文件，选择目标，然后添加 AVFoundation.framework 和 MediaPlayer.framework 。

步骤4- 如下更新 ViewController.h-

#import <UIKit/UIKit.h>
#import <AVFoundation/AVFoundation.h>
#import <MediaPlayer/MediaPlayer.h>

@interface ViewController : UIViewController {
   AVAudioPlayer *audioPlayer;
   MPMoviePlayerViewController *moviePlayer;
}
-(IBAction)playAudio:(id)sender;
-(IBAction)playVideo:(id)sender;
@end

步骤5- 如下更新 ViewController.m-

#import "ViewController.h"

@interface ViewController ()
@end

@implementation ViewController

- (void)viewDidLoad {
   [super viewDidLoad];
}

- (void)didReceiveMemoryWarning {
   [super didReceiveMemoryWarning];
   //Dispose of any resources that can be recreated.
}

-(IBAction)playAudio:(id)sender {
   NSString *path = [[NSBundle mainBundle]
   pathForResource:@"audioTest" ofType:@"mp3"];
   audioPlayer = [[AVAudioPlayer alloc]initWithContentsOfURL:
   [NSURL fileURLWithPath:path] error:NULL];
   [audioPlayer play];
}

-(IBAction)playVideo:(id)sender {
   NSString *path = [[NSBundle mainBundle]pathForResource:
   @"videoTest" ofType:@"mov"];
   moviePlayer = [[MPMoviePlayerViewController 
   alloc]initWithContentURL:[NSURL fileURLWithPath:path]];
   [self presentModalViewController:moviePlayer animated:NO];
}
@end

运行应用程序时，将获得以下输出-

当无涯教程点击播放视频时，无涯教程将得到如下所示的输出-

当无涯教程单击播放音频时，您将听到音频。