【Android】选择时间功能之TimePicker、TimePickerDialog、DatePicker、DatePickerDialog

 

一、TimePicker

• MainActivity.java

public class MainActivity extends AppCompatActivity {private TimePicker timePicker;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);timePicker = findViewById(R.id.timepicker);//设置是24小时制还是12小时制timePicker.setIs24HourView(true);//设置背景颜色timePicker.setBackgroundColor(Color.BLACK);//设置监听器setOnTimeChangedListenertimePicker.setOnTimeChangedListener(new TimePicker.OnTimeChangedListener() {@Overridepublic void onTimeChanged(TimePicker view, int hourOfDay, int minute) {Toast.makeText(MainActivity.this,"您选择的时间是："+hourOfDay+"时"+minute+"分!",Toast.LENGTH_SHORT).show();}});}
}

• activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><TimePickerandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/timepicker"></TimePicker>
</RelativeLayout>

•  效果

 

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二、TimePickerDialog

构造方法1：默认弹出一个圆盘形Dialog

TimePickerDialog(Context context,OnTimeSetListener listener,int hourOfDay,int minute,boolean is24HourView
)

new TimePickerDialog(MainActivity.this,new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {}},0,0,true).show();

效果

构造方法2：可选样式(如弹出古老的滚动式Dialog)

TimePickerDialog(Context context,int themeResId,OnTimeSetListener listener,int hourOfDay,int minute,boolean is24HourView
)

new TimePickerDialog(MainActivity.this,AlertDialog.THEME_HOLO_DARK,new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {}},0,0,true).show();

themeResId:

THEME_HOLO_DARK
THEME_HOLO_LIGHT
THEME_TRADITIONAL
THEME_DEVICE_DEFAULT_DARK
THEME_DEVICE_DEFAULT_LIGHT

 

时间参数：

参数：

外面构造方法中的hourOfDay和minute 是指TimePickerDialog显示出来初始化的时间。

而onTimeSet的hourOfDay和minute 是指选择时间后被改变的时间是多少。

下面的程序运行后，Dialog第一次显示00：00，选择一个时间14：00，这个时间就保存在MainActivity的成员变量hourOfDay,minute，Dialog第二次点开显示就是14：00

public class MainActivity extends AppCompatActivity {private Button button;private int hourOfDay=0,minute=0;//都初始化为0，则第一次Dialog显示时间为00：00@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);button= this.<Button>findViewById(R.id.button);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {new TimePickerDialog(MainActivity.this,AlertDialog.THEME_DEVICE_DEFAULT_LIGHT,new TimePickerDialog.OnTimeSetListener() {@Overridepublic void onTimeSet(TimePicker view, int hourOfDay, int minute) {MainActivity.this.hourOfDay=hourOfDay;MainActivity.this.minute=minute;}},hourOfDay,minute,true).show();}});}
}

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DatePicker和DatePickerDialog与TimePicker和TimePickerDialog差不多

---

三、DatePicker

• MainActivity.java

public class MainActivity extends AppCompatActivity {private DatePicker datePicker;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);datePicker= this.<DatePicker>findViewById(R.id.datepicker);datePicker.init(2019, 2, 20, new DatePicker.OnDateChangedListener() {@Overridepublic void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {// 获取一个日历对象，并初始化为当前选中的时间Calendar calendar = Calendar.getInstance();calendar.set(year, monthOfYear, dayOfMonth);SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日  HH:mm");Toast.makeText(MainActivity.this, simpleDateFormat.format(calendar.getTime()), Toast.LENGTH_SHORT).show();}});}
}

• activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayoutxmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"tools:context=".MainActivity"><DatePickerandroid:layout_width="wrap_content"android:layout_height="wrap_content"android:id="@+id/datepicker"></DatePicker></RelativeLayout>

• 效果

---

四、DatePickerDialog

和TimePickerDialog差不多

构造方法一： 

DatePickerDialog(Context context,OnDateSetListener listener,int year,int month,int dayOfMonth
)

new DatePickerDialog(this, new DatePickerDialog.OnDateSetListener() {@Overridepublic void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {}},2019,2,19).show();

构造方法二：

DatePickerDialog(Context context,int themeResId,OnDateSetListener listener,int year,int month,int dayOfMonth
)

new DatePickerDialog(this, AlertDialog.THEME_HOLO_DARK,new DatePickerDialog.OnDateSetListener() {@Overridepublic void onDateSet(DatePicker view, int year, int month, int dayOfMonth) {}},2019,2,19).show();

themeResId:

THEME_HOLO_DARK
THEME_HOLO_LIGHT
THEME_TRADITIONAL
THEME_DEVICE_DEFAULT_DARK
THEME_DEVICE_DEFAULT_LIGHT