话不多说直接上代码

fragment_lamp.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/white"
    android:gravity="center"
    android:orientation="horizontal"
    tools:context=".fragment.LampFragment">

    <LinearLayout
        android:id="@+id/buju2"
        android:layout_width="wrap_content"
        android:layout_height="300dp"
        android:gravity="center"
        android:orientation="vertical">

        <TextView
            android:id="@+id/wenben_1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:paddingLeft="20dp"
            android:paddingRight="35dp"
            android:text="@string/wenben_1"
            android:textColor="@color/colorPrimary"
            android:textSize="25sp" />

        <LinearLayout
            android:id="@+id/buju4"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:background="@drawable/bg_time"
            android:gravity="bottom"
            android:padding="10dp">

            <EditText
                android:id="@+id/ed_hour"
                android:layout_width="70dp"
                android:layout_height="50dp"
                android:gravity="center"
                android:inputType="number"
                android:maxLength="2"
                android:text="00"
                android:textColor="@color/colorPrimary" />

            <TextView
                android:id="@+id/maohao1"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:text=":"
                android:textColor="@color/colorPrimary"
                android:textSize="20sp"
                android:textStyle="bold" />

            <EditText
                android:id="@+id/ed_min"
                android:layout_width="70dp"
                android:layout_height="50dp"
                android:gravity="center"
                android:inputType="number"
                android:maxLength="2"
                android:text="00"
                android:textColor="@color/colorPrimary" />

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:text=":"
                android:textColor="@color/colorPrimary"
                android:textSize="20sp"
                android:textStyle="bold" />

            <EditText
                android:id="@+id/ed_second"
                android:layout_width="70dp"
                android:layout_height="50dp"
                android:gravity="center"
                android:inputType="number"
                android:maxLength="2"
                android:text="00"
                android:textColor="@color/colorPrimary" />

        </LinearLayout>
    </LinearLayout>

    <ImageView
        android:id="@+id/fengexian"
        android:layout_width="1dp"
        android:layout_height="300dp"
        android:layout_marginLeft="20dp"
        android:layout_toRightOf="@+id/buju2"
        android:background="@color/colorPrimary" />

    <LinearLayout
        android:id="@+id/buju3"
        android:layout_width="wrap_content"
        android:layout_height="300dp"
        android:layout_marginLeft="20sp"
        android:gravity="center_horizontal"
        android:orientation="vertical">

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/wenben_2"
            android:textColor="@color/colorPrimary"
            android:textSize="25sp" />

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:gravity="center">
            <TextView
                android:id="@+id/tv_time"
                android:layout_width="150dp"
                android:layout_height="wrap_content"
                android:gravity="center"
                android:background="@drawable/bg_time"
                android:padding="10dp"
                android:textColor="@color/colorPrimary"
                android:textSize="30sp" />
        </LinearLayout>

        <LinearLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:gravity="bottom"
            android:padding="10dp">

            <Button
                android:id="@+id/btn_start"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:background="@drawable/shapes"
                android:text="@string/start"
                android:enabled="true"
                android:textColor="@color/white"
                android:textSize="20sp" />

            <Button
                android:id="@+id/btn_continues"
                android:layout_width="wrap_content"
                android:layout_height="50dp"
                android:layout_marginLeft="20dp"
                android:background="@drawable/btn_selector"
                android:text="@string/suspend"
                android:textColor="@color/white"
                android:enabled="false"
                android:textSize="20sp" />

            <Button
                android:id="@+id/btn_stop"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginLeft="20dp"
                android:background="@drawable/btn_selector"
                android:text="@string/end"
                android:enabled="false"
                android:textColor="@color/white"
                android:textSize="20sp" />
        </LinearLayout>

    </LinearLayout>
</LinearLayout>

LampFragment.java

public class LampFragment extends BaseFragment<FragmentLampBinding> {
    private long time = 0;
    public IConnectionManager manager;
    CountDownTimer timer;
    public static int mm = 0;
    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        init();
    }

    private void init() {
        manager = SocketManager.getInstance();
        // 暂停按键监听事件
        viewBinding.btnContinues.setOnClickListener(View -> {

            if(timer==null) {
                Toast.makeText(getActivity(), R.string.toast_mes, Toast.LENGTH_SHORT).show();
            }else {
                if (viewBinding.btnContinues.getText().toString().equals(getResources().getString(R.string.continues))) {
                    viewBinding.btnContinues.setText(R.string.suspend);
                    if ("00:00:00".equals(viewBinding.tvTime.getText().toString())) {
                        Toast.makeText(getActivity(), R.string.toast_mes, Toast.LENGTH_SHORT).show();
                    } else {
                        String[] item = viewBinding.tvTime.getText().toString().split(":");
                        int hour = Integer.valueOf(item[0]);
                        int min = Integer.valueOf(item[1]);
                        int send = Integer.valueOf(item[2]);
                        try {
                            time = CountDownUntil.formatTurnSecond(hour, min, send);
                        } catch (ParseException e) {
                            e.printStackTrace();
                        }
                        startTime(time);
                    }
                } else {
                   
                    timer.cancel();
                    viewBinding.btnContinues.setText(R.string.continues);
                }
            }
        });
        // 开始按键监听事件
        viewBinding.btnStart.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                if (MainActivity.flag2 ==0) {
                    InputMethodManager imm = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
                    imm.hideSoftInputFromWindow(viewBinding.edHour.getWindowToken(), 0);
                    viewBinding.btnContinues.setText(R.string.suspend);
                    int hour = Integer.valueOf(viewBinding.edHour.getText().toString());
                    int min = Integer.valueOf(viewBinding.edMin.getText().toString());
                    int send = Integer.valueOf(viewBinding.edSecond.getText().toString());
                    try {
                        time = CountDownUntil.formatTurnSecond(hour, min, send);
                    } catch (ParseException e) {
                        e.printStackTrace();
                    }
                    if (time == 0) {
                        Toast.makeText(getActivity(), R.string.toast_mes, Toast.LENGTH_SHORT).show();
                    } else {
                        startTime(time);
                        viewBinding.btnStart.setEnabled(false);
                        viewBinding.btnStart.setBackground(getResources().getDrawable(R.drawable.btn_selector));
                        viewBinding.btnContinues.setEnabled(true);
                        viewBinding.btnContinues.setBackground(getResources().getDrawable(R.drawable.shapes));
                        viewBinding.btnStop.setEnabled(true);
                        viewBinding.btnStop.setBackground(getResources().getDrawable(R.drawable.shapes));
                        Log.e("wer", "" + time);
                    }
                } else {
                    Toast.makeText(getActivity(), R.string.lamp, Toast.LENGTH_SHORT).show();
                }
            }
        });
        // 结束按键监听事件
        viewBinding.btnStop.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                
                LampFragment.mm=0;
                viewBinding.tvTime.setText("00:00:00");
                timer.cancel();
                viewBinding.btnStart.setEnabled(true);
                viewBinding.btnStart.setBackground(getResources().getDrawable(R.drawable.shapes));
                viewBinding.btnContinues.setEnabled(false);
                viewBinding.btnContinues.setBackground(getResources().getDrawable(R.drawable.btn_selector));
                viewBinding.btnStop.setEnabled(true);
                viewBinding.btnStop.setBackground(getResources().getDrawable(R.drawable.btn_selector));
    }
});
    }

    private void startTime(long T) {
        LampFragment.mm=1;
       
        timer = new CountDownTimer(T, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                Logger.d(millisUntilFinished / 1000);
                viewBinding.tvTime.setText(CountDownUntil.formatTime(millisUntilFinished));
            }

            @Override
            public void onFinish() {
              
                LampFragment.mm=0;
                viewBinding.tvTime.setText("00:00:00");
                timer.cancel();
                viewBinding.btnStart.setEnabled(true);
                viewBinding.btnStart.setBackground(getResources().getDrawable(R.drawable.shapes));
                viewBinding.btnContinues.setEnabled(false);
                viewBinding.btnContinues.setBackground(getResources().getDrawable(R.drawable.btn_selector));
                viewBinding.btnStop.setEnabled(true);
                viewBinding.btnStop.setBackground(getResources().getDrawable(R.drawable.btn_selector));
            }
        };
        timer.start();

    }
    @Subscribe(threadMode = ThreadMode.MAIN)
    public void onEventMainThread(MessageWrap event) {
    }
}