Question

我有两个分开的活动，recording.java和audio.java共享相同的xml。我应该怎么做才能在一个活动中将它们组合在一起？或者还有其他方法吗？请告诉我。谢谢。

以下是代码：

Recording.java

public class Recording extends Activity {
    private static final String LOG_TAG = "Audio";
    private static String FileName = null;

    private RecordButton RecordButton = null;
    private MediaRecorder Recorder = null;

    private PlayButton   PlayButton = null;
    private MediaPlayer   Player = null;

    private void onRecord(boolean start) {
        if (start) {
            startRecording();
        } else {
            stopRecording();
        }
    }

    private void onPlay(boolean start) {
        if (start) {
            startPlaying();
        } else {
            stopPlaying();
        }
    }

    private void startPlaying() {
        Player = new MediaPlayer();
        try {
            Player.setDataSource(FileName);
            Player.prepare();
            Player.start();
        } catch (IOException e) {
            Log.e(LOG_TAG, "prepare() failed");
        }
    }

    private void stopPlaying() {
        Player.release();
        Player = null;
    }

    private void startRecording() {
        Recorder = new MediaRecorder();
        Recorder.setAudioSource(MediaRecorder.AudioSource.MIC);
        Recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
        Recorder.setOutputFile(FileName);
        Recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);

        try {
            Recorder.prepare();
        } catch (IOException e) {
            Log.e(LOG_TAG, "prepare() failed");
        }

        Recorder.start();
    }

    private void stopRecording() {
        Recorder.stop();
        Recorder.release();
        Recorder = null;
    }

    class RecordButton extends Button {
        boolean StartRecording = true;

        OnClickListener clicker = new OnClickListener() {
            public void onClick(View v) {

                onRecord(StartRecording);
                if (StartRecording) {
                    setText("Stop Record");
                    PlayButton.setEnabled(false);
                } else {
                    setText("Start Record");
                    PlayButton.setEnabled(true);
                }
                StartRecording = !StartRecording;


            }
        };

        public RecordButton(Context ctx) {
            super(ctx);
            setText("Start Record");
            setOnClickListener(clicker);
        }
    }

    class PlayButton extends Button {
        boolean StartPlaying = true;

        OnClickListener clicker = new OnClickListener() {
            public void onClick(View v) {
                onPlay(StartPlaying);
                if (StartPlaying) {
                    setText("Stop Playing");
                    RecordButton.setEnabled(false);
                } else {
                    setText("Start Playing");
                    RecordButton.setEnabled(true);

                }
                StartPlaying = !StartPlaying;
            }
        };

        public PlayButton(Context ctx) {
            super(ctx);
            setText("Start Playing");
            setOnClickListener(clicker);
        }
    }

    public Recording() {
        FileName = Environment.getExternalStorageDirectory().getAbsolutePath();
        FileName += "/audiorecording.3gp";
    }

    @Override
    public void onCreate(Bundle icicle) {
        super.onCreate(icicle);
        setContentView(R.layout.main_layout);

        LinearLayout container = (LinearLayout) findViewById(R.id.container);


        LinearLayout audio = new LinearLayout(this);

        audio.setGravity(Gravity.BOTTOM | Gravity.CENTER);

        RecordButton = new RecordButton(this);
        audio.addView(RecordButton,
                new LinearLayout.LayoutParams(
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        Gravity.CENTER | Gravity.BOTTOM));

        PlayButton = new PlayButton(this);
        audio.addView(PlayButton,
                new LinearLayout.LayoutParams(
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        ViewGroup.LayoutParams.WRAP_CONTENT,
                        Gravity.CENTER | Gravity.BOTTOM));


        container.addView(audio);
    }

    @Override
    public void onPause() {
        super.onPause();
        if (Recorder != null) {
            Recorder.release();
            Recorder = null;
        }

        if (Player != null) {
            Player.release();
            Player = null;
        }
    }
}

Audio.java

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

    imageButton1 = (ImageButton) findViewById(R.id.imageButton1);
    imageButton2 = (ImageButton)findViewById(R.id.imageButton2);

    final MediaPlayer sound = MediaPlayer.create(Audio.this, R.raw.audio1);

    imageButton1.setOnClickListener (new View.OnClickListener(){
        @Override
        public void onClick(View v){
            sound.start();
        }

    });

    imageButton2.setOnClickListener (new View.OnClickListener(){
        @Override
        public void onClick(View v){
            sound.pause();
        }
    });
  }
}

audio.xml

  <Button
    android:id="@+id/Play"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="130dp"
    android:background="#54C571"
    android:text="Next"
    android:textColor="#FFFFFF"
    android:textSize="23sp"
    android:textStyle="bold" />

 <Button
    android:id="@+id/Pause"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="180dp"
    android:background="#54C571"
    android:text="Next"
    android:textColor="#FFFFFF"
    android:textSize="23sp"
    android:textStyle="bold" />

Answer 1

在仔细查看代码后，您似乎在一个活动中录制了一些音频，并在另一个活动中播放音频。如果您想在一个活动中同时实现这两个功能，那么您可以将这两个活动作为片段并将其显示在一个活动中。

Answer 2

我认为Fragment将是此次活动中的最佳选择。将您的所有活动转换为片段并制作另一个活动以包含它们。

Android：两个共享一个布局的活动

2 个答案: