帮我用android studio 代码实现安卓播放器界面

好的，以下是一个简单的安卓视频播放器界面的实现代码示例：

1. 首先，在Android Studio中创建一个新的安卓项目，并在布局文件中添加以下代码：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <VideoView
        android:id="@+id/videoView"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />

    <LinearLayout
        android:id="@+id/controlsLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentBottom="true"
        android:orientation="horizontal"
        android:padding="10dp">

        <ImageButton
            android:id="@+id/playButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_play_arrow_black_24dp" />

        <SeekBar
            android:id="@+id/seekBar"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:paddingLeft="5dp"
            android:paddingRight="5dp" />

        <TextView
            android:id="@+id/timeTextView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="00:00"
            android:textAppearance="?android:attr/textAppearanceSmall" />

        <ImageButton
            android:id="@+id/fullScreenButton"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:src="@drawable/ic_fullscreen_black_24dp" />

    </LinearLayout>

</RelativeLayout>

2. 在Java代码中，您需要为播放器控件添加一些基本操作，例如播放、暂停、拖动进度条、切换全屏等。以下是一个简单的示例代码：

public class VideoPlayerActivity extends AppCompatActivity {

    private VideoView videoView;
    private ImageButton playButton, fullScreenButton;
    private SeekBar seekBar;
    private TextView timeTextView;
    private boolean isFullScreen = false;
    private boolean isPlaying = false;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_video_player);

        // 获取控件
        videoView = (VideoView) findViewById(R.id.videoView);
        playButton = (ImageButton) findViewById(R.id.playButton);
        fullScreenButton = (ImageButton) findViewById(R.id.fullScreenButton);
        seekBar = (SeekBar) findViewById(R.id.seekBar);
        timeTextView = (TextView) findViewById(R.id.timeTextView);

        // 设置视频路径
        videoView.setVideoPath("YOUR_VIDEO_PATH");

        // 监听视频播放完成事件
        videoView.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
            @Override
            public void onCompletion(MediaPlayer mediaPlayer) {
                isPlaying = false;
                playButton.setImageResource(R.drawable.ic_play_arrow_black_24dp);
                seekBar.setProgress(0);
                timeTextView.setText("00:00");
            }
        });

        // 监听播放按钮点击事件
        playButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (isPlaying) {
                    videoView.pause();
                    isPlaying = false;
                    playButton.setImageResource(R.drawable.ic_play_arrow_black_24dp);
                } else {
                    videoView.start();
                    isPlaying = true;
                    playButton.setImageResource(R.drawable.ic_pause_black_24dp);
                }
            }
        });

        // 监听全屏按钮点击事件
        fullScreenButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if (isFullScreen) {
                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
                    isFullScreen = false;
                    fullScreenButton.setImageResource(R.drawable.ic_fullscreen_black_24dp);
                } else {
                    setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
                    isFullScreen = true;
                    fullScreenButton.setImageResource(R.drawable.ic_fullscreen_exit_black_24dp);
                }
            }
        });

        // 监听进度条拖动事件
        seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
                if (fromUser) {
                    videoView.seekTo(progress * 1000);
                    timeTextView.setText(getFormattedTime(progress));
                }
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {
                videoView.pause();
            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {
                videoView.start();
            }
        });

        // 开始播放视频
        videoView.start();
        isPlaying = true;
        playButton.setImageResource(R.drawable.ic_pause_black_24dp);

        // 设置进度条最大值
        seekBar.setMax(videoView.getDuration() / 1000);

        // 更新进度条和时间显示
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                if (isPlaying) {
                    seekBar.setProgress(videoView.getCurrentPosition() / 1000);
                    timeTextView.setText(getFormattedTime(videoView.getCurrentPosition() / 1000));
                }
                new Handler().postDelayed(this, 1000);
            }
        }, 1000);
    }

    // 格式化时间，将秒数转换为00:00格式
    private String getFormattedTime(int seconds) {
        int minutes = seconds / 60;
        seconds = seconds % 60;
        return String.format("%02d:%02d", minutes, seconds);
    }
}

这些代码将实现一个简单的安卓视频播放器界面，包括视频播放、进度条拖动、暂停/播放、全屏切换等功能。当然，您需要将“YOUR_VIDEO_PATH”替换为您实际视频文件的路径。

希望这个示例代码可以帮助您实现一个基本的安卓视频播放器界面。