对FreeStreamer的单例形式封装

来源：互联网发布：软件开发毕业设计题目编辑：程序博客网时间：2024/05/20 22:40

直接代码吧，注释已经加好。

.h 文件如下

////  FreeStreamerPlayer.h//  DownloadList////  Created by puslar on 16/9/18.//  Copyright © 2016年 puslar. All rights reserved.//#import <Foundation/Foundation.h>#import "FSAudioStream.h"@protocol PlayerDelegate <NSObject>@optional/** *  更新播放进度 * *  @param currentPosition 当前位置 *  @param endPosition     结束位置（总时长） */- (void)updateProgressWithCurrentPosition:(FSStreamPosition)currentPosition andEndPosition:(FSStreamPosition)endPosition;@end@interface FreeStreamerPlayer : FSAudioStream/** *  是否为播放状态 */@property (assign, nonatomic) BOOL isPlay;/** *  是否循环播放 */@property (assign, nonatomic) BOOL isLoop;/** *  播放文件地址(队列)数组 */@property (strong, nonatomic) NSMutableArray * audioArray;/** *  播放速率 */@property (assign, nonatomic) float rate;/** *  代理 用于更新播放进度 */@property (weak, nonatomic) id<PlayerDelegate> playerDelegate;/** *  获得播放器单例 * *  @return 获得播放器单例 */+ (instancetype)defaultPlayer;/** *  播放文件队列中的指定文件 * *  @param itemIndex 指定的文件的索引 */- (void)playItemAtIndex:(NSUInteger)itemIndex;@end

.m文件如下

////  FreeStreamerPlayer.m//  DownloadList////  Created by puslar on 16/9/18.//  Copyright © 2016年 puslar. All rights reserved.//#import "FreeStreamerPlayer.h"@interface FreeStreamerPlayer ()@property (assign, nonatomic) NSUInteger currentItemIndex;@property (strong, nonatomic) NSTimer * progressTimer;@end@implementation FreeStreamerPlayer/** *  获得播放器单例 * *  @return 播放器单例 */+ (instancetype)defaultPlayer{    static FreeStreamerPlayer * player = nil;        static dispatch_once_t onceToken;    dispatch_once(&onceToken, ^{        //创建FSAudioStream对象        FSStreamConfiguration *config = [[FSStreamConfiguration alloc] init];        config.httpConnectionBufferSize *= 2;        config.enableTimeAndPitchConversion = YES;        player = [[super alloc] initWithConfiguration:config];        player.onFailure=^(FSAudioStreamError error,NSString *description){            NSLog(@"发生错误：%@",description);        };        player.onCompletion=^(){            NSLog(@"播放完成!");            [player stop];        };        player.onStateChange=^(FSAudioStreamState state){            if (state == kFsAudioStreamPlaying) {                [player setPlayRate:player.rate];            }            if (state == kFsAudioStreamStopped) {                if (player.isSinglePlay && player.isLoop) {                    [player playItemAtIndex:player.currentItemIndex];                }                if (!player.isSinglePlay && player.currentItemIndex+1 < player.audioArray.count) {                    [player playItemAtIndex:player.currentItemIndex+1];                }                if (!player.isSinglePlay && player.isLoop && player.currentItemIndex+1 >= player.audioArray.count) {                    [player playItemAtIndex:0];                }            }        };        [player setVolume:0.5];        player.progressTimer = nil;        player.isSinglePlay = YES;        player.isLoop = NO;        player.rate = 1;    });        return player;}/** *  播放 */- (void)play{    [super play];    if (!_progressTimer) {        _progressTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];    }    _isPlay = YES;}/** *  播放指定地址的文件 * *  @param url 文件地址 */- (void)playFromURL:(NSURL *)url{    [super playFromURL:url];    if (![self.audioArray containsObject:url]) {        [self.audioArray addObject:url];    }    _currentItemIndex = [self.audioArray indexOfObject:url];    if (!_progressTimer) {        _progressTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];    }    _isPlay = YES;}/** *  从指定位置开始播放文件 * *  @param offset 起始偏移量 */- (void)playFromOffset:(FSSeekByteOffset)offset{    [super playFromOffset:offset];    if (!_progressTimer) {        _progressTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];    }    _isPlay = YES;}/** *  播放文件队列中的指定文件 * *  @param itemIndex 指定的文件的索引 */- (void)playItemAtIndex:(NSUInteger)itemIndex{    if (itemIndex < self.audioArray.count) {        _currentItemIndex = itemIndex;        [self playFromURL:[self.audioArray objectAtIndex:itemIndex]];    } else {        NSLog(@"超出列表长度");    }}/** *  暂停 */- (void)pause{    if (_isPlay) {        [super pause];        if (!_progressTimer) {            _progressTimer = [NSTimer scheduledTimerWithTimeInterval:0.1 target:self selector:@selector(updateProgress) userInfo:nil repeats:YES];        }    }}/** *  停止 */- (void)stop{    [super stop];    [_progressTimer invalidate];    _progressTimer = nil;    _isPlay = NO;}/** *  设置播放速率 * *  @param rate 播放速率（0.5~2） */- (void)setRate:(float)rate{    _rate = rate;    [self setPlayRate:rate];}/** *  更新播放进度 */- (void)updateProgress{    if ([_playerDelegate respondsToSelector:@selector(updateProgressWithCurrentPosition:andEndPosition:)]) {        [_playerDelegate updateProgressWithCurrentPosition:self.currentTimePlayed andEndPosition:self.duration];    }}/** *  播放的文件队列 * *  @return 播放的文件队列 */- (NSMutableArray *)audioArray{    if (!_audioArray) {        _audioArray = [[NSMutableArray alloc] init];    }    return _audioArray;}@end

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