Android：对话框中的时间选择器

Question

我试图修改我在 stackoverflow 上找到的这个time picker ，并将它放在我的application的dialog中。 当我尝试选择time ，结果不是我设置的，而是设备的时间，所以时间设置得不好。 function TimeSetting 用于调用时间选择器。
我试图让它从零开始并采取正确的时间但没有结果。 有人可以帮我找出错误在哪里吗？

这是 ExampleDialog.java 文件：

import android.annotation.SuppressLint;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatDialogFragment;
import com.ikovac.timepickerwithseconds.MyTimePickerDialog;
import com.ikovac.timepickerwithseconds.TimePicker;
import java.util.Calendar;

    public class ExampleDialog extends AppCompatDialogFragment {
    private EditText textInputNome;
    private ExampleDialogListener listener;
    private Button positiveButton;
    private TextView text_view_timesec;
    private Button SetTimeBTN;
    private String nome = null;
    private int timeInSeconds=-1;
    private int hourOfDay;
    private int minute;
    private int seconds;


    /*for MainActivity*/
    public interface ExampleDialogListener {
        boolean applyProgram(String nome);
    }


    @NonNull
    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {
        AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
        final LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.layout_dialog, null);
        textInputNome = view.findViewById(R.id.tiCrea);
        SetTimeBTN=view.findViewById(R.id.btn_SetTime);
        text_view_timesec=view.findViewById(R.id.textView3);
      textInputNome.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
                TimeSetting();
            }
            @SuppressLint("SetTextI18n")
            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {
                nome =textInputNome.getText().toString().trim();
                TimeSetting();
            }
            @Override
            public void afterTextChanged(Editable s) {
                TimeSetting();
            }
        });

        builder.setView(view);
        builder.setTitle("Nome programma");
        builder.setNegativeButton("delete", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
            }
        });
            builder.setPositiveButton("create", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                String nome = textInputNome.getText().toString().trim();
                listener.applyProgram(nome);
            }
        });
        Dialog dialog = builder.create();
        return dialog;



    }

    @Override
    public void onAttach(@NonNull Context context) {
        super.onAttach(context);
        try {
            listener = (ExampleDialogListener) context;
        } catch (ClassCastException e) {
            throw new ClassCastException(context.toString() +
                    "must implement ExampleDialogListener");
        }
    }

    @Override
    public void onDetach() {
        super.onDetach();
        listener = null;
    }      
@Override
    public void onStart() {
        super.onStart();
        AlertDialog d = (AlertDialog) getDialog();

        if (d != null ) {
            positiveButton = d.getButton(Dialog.BUTTON_POSITIVE);
            positiveButton.setEnabled(false);
        }
    }
private void TimeSetting(){
        SetTimeBTN.setOnClickListener(new View.OnClickListener() {        
            @Override
            public void onClick(View v) {

                Toast.makeText(getContext(), "Btn clicked", Toast.LENGTH_SHORT).show();
                Calendar c = Calendar.getInstance();
                MyTimePickerDialog mTimePicker = new MyTimePickerDialog(getContext(), new MyTimePickerDialog.OnTimeSetListener() {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute, int seconds) {
                        SetTimeBTN.setText(getString(R.string.time) + String.format("%02d", hourOfDay) + ":" + String.format("%02d", minute) + ":" + String.format("%02d", seconds));
                    }
                    }, hourOfDay=c.get(Calendar.HOUR_OF_DAY), minute=c.get(Calendar.MINUTE), seconds=c.get(Calendar.SECOND), true);

                timeInSeconds = ((hourOfDay * 60 * 60) + (minute * 60) + seconds);
                text_view_timesec.setText("hh=" + hourOfDay + " mm=" + minute + " ss=" + seconds + " time tot=" + timeInSeconds);
                positiveButton.setEnabled(!nome.isEmpty() && timeInSeconds > 0);

                mTimePicker.show();
            }
           });
    }
}

这是对话框的 xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/time_view"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:padding="16dp">

    <com.google.android.material.textfield.TextInputLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <com.google.android.material.textfield.TextInputEditText
            android:id="@+id/tiCrea"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:hint="@string/name"
            android:inputType="text" />

    </com.google.android.material.textfield.TextInputLayout>


    <Button
        android:id="@+id/btn_SetTime"
        style="@style/Widget.AppCompat.Button.Borderless"
        android:layout_width="186dp"
        android:layout_height="wrap_content"
        android:text="@string/clickToSetTime"
        android:textAlignment="viewStart"
        android:gravity="start" />
    

    <TextView
        android:id="@+id/textView3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:text="here is the time setted from the timepkr" />

</LinearLayout>

Answer 1

在 onCreate 方法中更改这两行

 final LayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.layout_dialog, null);

至

final LinearLayoutInflater inflater = getActivity().getLayoutInflater();
        View view = inflater.inflate(R.layout.layout_dialog, (ViewGroup)R.id.time_view");//here the id of the root LinearLayout in the XMl File layout_dialog.