9.34.1. Brief introduction ¶
Audio and video are quite common in the latest devices.
Adding iosAVFoundation.framework and MediaPlayer.framework to the Xcode project allows IOS to support audio and video (Audio & Video).
9.34.2. Instance step ¶
1、创建一个简单的View based application
2、选择项目文件、选择目标，然后添加AVFoundation.framework和MediaPlayer.framework
3、在ViewController.xib中添加两个按钮，创建一个用于分别播放音频和视频的动作（action）
4、更新ViewController.h,如下所示
#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
5、更新ViewController.m，如下所示
#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
9.34.3. Attention item ¶
Audio and video files need to be added to ensure the expected output
9.34.4. Output ¶
Run the program, and the output is as follows
When we click play video (play video), the display is as follows:
