之前的:
Android—实现时间控件(更加美观)- DatePicker_时间控件
旧版时间控件博客-王睿
替换后:
Android—实现时间控件(更加美观)- DatePicker_代码实例_02

是不是感觉更加美观些,其实代码比之前的还要很简单,大家往下看:

activity.xml:

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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"
    tools:context=".MainActivity">

    <DatePicker
        android:id="@+id/dp_time"
        android:layout_marginTop="20dp"
        android:layout_width="match_parent"
        android:layout_height="100dp"
        android:datePickerMode="spinner"
        android:layout_centerInParent="true"
        android:calendarViewShown="false"/>

</RelativeLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {
    private DatePicker dpTime;
    private String time;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        dpTime = findViewById(R.id.dp_time);

        //  init方法,第1~3参数分别表示:年,月,日,第四个参数是:一个DatePicker 时间控件的对象
        //  再调用OnDateChangedListener()方法,就可以达到时刻监听的效果
        dpTime.init(2019, 9, 4, new DatePicker.OnDateChangedListener() {
            @Override
            public void onDateChanged(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                time = ""+year+"年"+(monthOfYear+1)+"月"+dayOfMonth+"日";
                Toast.makeText(MainActivity.this,"时间为:"+time,Toast.LENGTH_LONG).show();
            }
        });
    }
}