AndroidStudio：實現幾種常用對話框-進度條、日期選擇、時間選擇

一、內容

本案例主要介紹以下幾種常見對話框：

1.進度條對話框

2.日期選擇對話框

3.時間選擇對話框

二、實現

import android.app.Activity;
import android.app.DatePickerDialog;
import android.app.ProgressDialog;
import android.app.TimePickerDialog;
import android.app.DatePickerDialog.OnDateSetListener;
import android.app.TimePickerDialog.OnTimeSetListener;
import android.os.Bundle;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.DatePicker;
import android.widget.TimePicker;

public class MainActivity extends Activity
{
    Button btn1,btn2,btn3;
    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn1=(Button)findViewById(R.id.btn1);
        btn2=(Button)findViewById(R.id.btn2);
        btn3=(Button)findViewById(R.id.btn3);
        btn1.setOnClickListener(new mClick());
        btn2.setOnClickListener(new mClick());
        btn3.setOnClickListener(new mClick());
    }
    class mClick implements OnClickListener
    {
        int m_year = 2012;
        int m_month = 1;
        int m_day = 1;
        int m_hour = 12,   m_minute = 1;
        @Override
        public void onClick(View v)
        {
            if(v == btn1)
            {
                //設置進度對話框
                ProgressDialog  d=new ProgressDialog (MainActivity.this);
                d.setTitle("進度對話框");
                d.setIndeterminate(true);
                d.setMessage("程序正在Loading...");
                d.setCancelable(true);
                d.setMax(10);
                d.show();
            }
            else  if(v == btn2)
            {
                //設置日期監聽器
                OnDateSetListener dateListener = new OnDateSetListener()
                {
                    @Override
                    public void onDateSet(DatePicker view, int year,
                                          int monthOfYear, int dayOfMonth)
                    {
                        m_year = year;
                        m_month = monthOfYear;
                        m_day = dayOfMonth;
                    }
                };
                //創建日期對話框對象
                DatePickerDialog date = new DatePickerDialog(MainActivity.this,
                        dateListener, m_year, m_month, m_day);
                date.setTitle("日期對話框");
                date.show();
            }
            else  if(v == btn3)
            {    //設置時間監聽器
                OnTimeSetListener timeListener = new OnTimeSetListener()
                {
                    @Override
                    public void onTimeSet(TimePicker view, int hourOfDay, int minute)
                    {
                        m_hour = hourOfDay;
                        m_minute = minute;
                    }
                };
                TimePickerDialog d = new TimePickerDialog(MainActivity.this,
                        timeListener, m_hour, m_minute, true);
                d.setTitle("時間對話框");
                d.show();
            }
        }
    }
}

三、效果展示

1.進度對話框

2.日期選擇對話框

3.時間選擇對話框