java - 循环播放音频Android Studio

Question

有人可以帮助我重复播放音频吗？
因此一键播放音频

这是无重复播放音频的代码

private void panggilAntrian(){
    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.nomor);
    panggil.start();
    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            cekNomor("158");
        }
    });
    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
        @Override
        public void onCompletion(MediaPlayer mediaPlayer) {
            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.silahkan);
            panggil.start();
            panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                @Override
                public void onCompletion(MediaPlayer mediaPlayer) {
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.loket);
                    panggil.start();
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            cekNomor("158");
                        }
                    });
                }
            });
        }
    });
}

在代码中，有一个功能可以重复每个数字播放音频。
重复播放基于数字的音频的功能是这个

private void cekNomor(String kata){
    final String[] noPanggil = kata.split("(?<=\\G.{1})");
    for(i=0; i<noPanggil.length; i++){
        switch (noPanggil[i]){
            case "0":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.nol);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.nol);
                        }
                    });
                }
                break;
            case "1":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.satu);
                    Log.e("SUARA", noPanggil[i]);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.satu);
                        }
                    });
                }
                break;
            case "2":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.dua);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.dua);
                        }
                    });
                }
                break;
            case "3":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tiga);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tiga);
                        }
                    });
                }
                break;
            case "4":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.empat);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.empat);
                        }
                    });
                }
                break;
            case "5":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.lima);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.lima);
                            Log.e("SUARA", noPanggil[i]);
                        }
                    });
                }
                break;
            case "6":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.enam);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.enam);
                        }
                    });
                }
                break;
            case "7":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tujuh);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tujuh);
                        }
                    });
                }
                break;
            case "8":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.delapan);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.delapan);
                            Log.e("SUARA", noPanggil[i]);
                        }
                    });
                }
                break;
            case "9":
                if(i==0){
                    panggil = MediaPlayer.create(AntrianLoket.this, R.raw.sembilan);
                }else{
                    panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mediaPlayer) {
                            panggil = MediaPlayer.create(AntrianLoket.this, R.raw.sembilan);
                        }
                    });
                }
                break;
        }
        panggil.start();
    }
}

输出用于检查第一个数字()不播放任何内容，而用于检查第二个数字()仅播放第一个索引，即“1”。
而两个checksNumber()都应依次播放三个音频。
谁能帮我？

Answer 1

您无法使用for循环执行此操作，因为这是同步编程，并且循环不会等待声音完成再循环播放其他歌曲。

解决此问题的方法之一是制作递归函数，以便您在onCompletion上再次调用它，只是以不同的数字开头:

旁注:请注意，我并未测试此代码，并且不确定它是否会起作用，我只是想朝着正确的方向前进。

private void cekNomor(String kata, i){
    final String[] noPanggil = kata.split("(?<=\\G.{1})");
    switch (noPanggil[i]){
        case "0":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.nol);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "1":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.satu);
                Log.e("SUARA", noPanggil[i]);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "2":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.dua);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "3":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tiga);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "4":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.empat);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "5":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.lima);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "6":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.enam);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);;
                    }
                });
            }
            break;
        case "7":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.tujuh);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "8":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.delapan);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
        case "9":
            if(i==0){
                panggil = MediaPlayer.create(AntrianLoket.this, R.raw.sembilan);
            }else{
                panggil.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                    @Override
                    public void onCompletion(MediaPlayer mediaPlayer) {
                        cekNomor(String kata, ++i);
                    }
                });
            }
            break;
    }
    panggil.start();
}