Android-基础音乐播放

悠悠 2023-02-22 07:59 104阅读 0赞

package com.example.mobile1931605008llx0702;
    
    import android.media.MediaPlayer;
    import android.os.Bundle;
    import android.view.View;
    import android.widget.Button;
    import android.widget.TextView;
    
    import androidx.appcompat.app.AppCompatActivity;
    
    public class MainActivity extends AppCompatActivity implements View.OnClickListener {//继承监听器类
    
        private TextView textView;
        private Button btnMainPlayer;
        private Button btnMainPause;
        private Button btnMainReplay;
        private Button btnMainStop;//控件对象
        private MediaPlayer mediaPlayer;//定义音乐播放对象
    
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);
            initView();
            initMusic();
        }
    
        private void initMusic() {
            mediaPlayer = MediaPlayer
                    .create(this, R.raw.zhoujiel_gaobaiqiqiu);//添加对象内容
        }
    
        private void initView() {
            textView = (TextView) findViewById(R.id.textView);
            btnMainPlayer = (Button) findViewById(R.id.btnMainPlayer);
            btnMainPause = (Button) findViewById(R.id.btnMainPause);
            btnMainReplay = (Button) findViewById(R.id.btnMainReplay);
            btnMainStop = (Button) findViewById(R.id.btnMainStop);//获取控件
            btnMainPause.setOnClickListener(this);//加入监听器
            btnMainPlayer.setOnClickListener(this);
            btnMainReplay.setOnClickListener(this);
            btnMainStop.setOnClickListener(this);
        }
    
        @Override
        public void onClick(View v) {//监听器类
            switch (v.getId()) {//获取按钮id
                case R.id.btnMainPlayer:
                    mediaPlayer.start();//播放
                    break;
                case R.id.btnMainPause:
                    if (mediaPlayer != null && mediaPlayer.isPlaying())
                        mediaPlayer.pause();//暂停
                    break;
                case R.id.btnMainReplay:
                    if (mediaPlayer != null) {//判断是否播放
                        mediaPlayer.seekTo(0);//调整播放位置
                        mediaPlayer.start();//开始播放
                    }
    
                    break;
                case R.id.btnMainStop:
                    if (mediaPlayer != null) {
                        mediaPlayer.stop();//停止，清除内容
                        mediaPlayer=MediaPlayer
                                .create(this,R.raw.zhoujiel_gaobaiqiqiu);//重新放进内容
                    }
                    break;
            }
        }
    }

#### 界面浏览 ####

![这里是安卓布局和音频文件位置][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng_size_16_color_FFFFFF_t_70_pic_center]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng_size_16_color_FFFFFF_t_70_pic_center]: https://img-blog.csdnimg.cn/20200702141908837.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3dlaXhpbl80NTg0MzY3Ng==,size_16,color_FFFFFF,t_70#pic_center