Question

我有一个单一的声音,通过我的服务器在网上演出。然而,它通过我的服务器成功运行,但音响似乎已经停止。我曾试图将其编成法典,但我没有uck。帮助

- (IBAction)oneSound:(id)sender; {
    if (ButtonAlReadyClicked == 1) 
    {
        ButtonAlReadyClicked = 2;

        [sender setBackgroundImage:[UIImage imageNamed:@"m2.png"] forState:UIControlStateNormal];

    }
    else if (ButtonAlReadyClicked == 2) 
    {
        ButtonAlReadyClicked = 1;

        [sender setBackgroundImage:[UIImage imageNamed:@"m1.png"] forState:UIControlStateNormal];

    }  
    if (player && player.playing) {
        [player stop];
        [player release];
        player = nil;
        return;
    }    

    AVPlayer *player = [[AVPlayer playerWithURL:[NSURL URLWithString:@"http://www.mysite.com/hi.mp3"]] retain];

    [player play];

}

我发现的错误:使用未申报的识别器[3]

Answer 1

The if (player … line always returns false because you have player as a local variable, not an instance ivar. Add a player ivar to your .h file, then save the one you init to it, not to a local player.

Answer 2

你们需要在被点击的纽芬兰语中宣布一个变数。之所以出现错误,是因为在你尝试和获取变数后,参与者变数被宣布为变数,并占用财产。

- (IBAction)oneSound:(id)sender {
    if (player == nil) {
        player = [[AVPlayer playerWithURL:[NSURL URLWithString:@"http://www.mysite.com/hi.mp3"]] retain];
        [player play];
        ButtonAlReadyClicked = 1;
        [self oneSound:sender];
        return;
    }
    if (ButtonAlReadyClicked == 1) {
        ButtonAlReadyClicked = 2;
        [sender setBackgroundImage:[UIImage imageNamed:@"m2.png"] forState:UIControlStateNormal];
    }
    else if (ButtonAlReadyClicked == 2) 
    {
        ButtonAlReadyClicked = 1;
        [sender setBackgroundImage:[UIImage imageNamed:@"m1.png"] forState:UIControlStateNormal];
    }  
    if (player && player.playing) {
        [player stop];
        [player release];
        player = nil;
        return;
    }    

}

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