使用AVPlayer实现在线音频播放注意问题
//（oneplayer为单例）
+(OnePlayer*)onePlayer
{
static OnePlayer * player = nil;
static dispatch_once_t once;
dispatch_once(&once, ^{
player = [[OnePlayer alloc]init];
});
return player;
}
//初始化
//url初始化
-(OnePlayer*)initWithMyUrl:(NSURL*)url
{
[self isCurrentPlayingUrl:url];
if (_isPlaying) {
[self pause];
}
[self replaceCurrentItemWithPlayerItem:[self creatPlayerItemWithMyUrl:url]];
//提示网络
// [[ShareManger defoutManger] judgeNetStatusAndAlert];
self.isPlyed = NO;
self.failPlay = NO;
[self start];
return self;
}
//初始化item
-(void)initWithaPlayerItem:(AVPlayerItem*)item
{
if (self.currentItem.status != AVPlayerStatusFailed) {
if (self.currentItem) {
[self removeObserverFromPlayerItem:self.currentItem];
[self removeNotification];
}
}
[self replaceCurrentItemWithPlayerItem:item];
[self addNotification];
}
//创建item
-(AVPlayerItem*)creatPlayerItemWithMyUrl:(NSURL*)url
{
_playingUrl = url;
if (self.currentItem.status != AVPlayerStatusFailed) {
if (self.currentItem) {
[self removeObserverFromPlayerItem:self.currentItem];
[self removeNotification];
}
}
AVPlayerItem * playerItem = [[AVPlayerItem alloc]initWithURL:url];
[self addObserberToPlayerItem:playerItem];
[self addNotification];
return playerItem;
}
//改变item
-(void)changeToItemWithMyUrl:(NSURL*)url
{
_playingUrl = url;
if (self.currentItem.status != AVPlayerStatusFailed) {
if (self.currentItem) {
[self removeObserverFromPlayerItem:self.currentItem];
[self removeNotification];
}
}
//重写getter方法
-(AVPlayerLayer*)playerLayer
{
if (!_playerLayer) {
_playerLayer = [AVPlayerLayer playerLayerWithPlayer:self];
}
return _playerLayer;
}
//第一次开始播放
-(void)start
{
[super play];
}
//重写播放方法
-(void)play
{
if (!_isPlaying) {
[super play];
_isPlaying = YES;
}
}
//重写暂停方法
-(void)pause
{
if (_isPlaying) {
[super pause];
_isPlaying = NO;
}
}
//判断新的URL是不是现在播放的URL
-(BOOL)isCurrentPlayingUrl:(NSURL*)url
{
NSString * urlStr = [url absoluteString];
NSString * isPlayingStr = [_playingUrl absoluteString];
if ([urlStr isEqualToString:isPlayingStr]) {
return YES;
}else{
return NO;
}
}
AVPlayerItem * playerItem = [[AVPlayerItem alloc]initWithURL:url];
[self addObserberToPlayerItem:playerItem];
[self replaceCurrentItemWithPlayerItem:playerItem];
[self addNotification];
}
