android点击弹出日期选择器 关于Android 点击按钮弹出日期选择器

首先是 xml文件

xmlns:android="/apk/res/android" android:layout_width="match_parent"

android:layout_height="match_parent">

android:layout_width="match_parent"

android:layout_height="match_parent">

android:id="@+id/BT"

android:layout_width="100dp"

android:layout_height="50dp"

android:text="选择时间"/>

然后是activity中的代码

package com.gxuwz.text;

import android.annotation.SuppressLint;

import android.app.Activity;

import android.app.DatePickerDialog;

import android.app.Dialog;

import android.os.Bundle;

import android.support.v7.app.AppCompatActivity;

import android.view.View;

import android.widget.Button;

import android.widget.DatePicker;

import java.util.Calendar;

public class time extends AppCompatActivity {

private Button bt;

@SuppressLint("MissingSuperCall")

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.time);

bt = findViewById(R.id.BT);

bt.setOnClickListener(new View.OnClickListener() {

@Override

public void onClick(View v) {

showDatePickDlg();

}

});

}

public void showDatePickDlg () {

Calendar calendar = Calendar.getInstance();

DatePickerDialog datePickerDialog = new DatePickerDialog(time.this, new DatePickerDialog.OnDateSetListener() {

@Override

public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {

time.this.bt.setText(year + "-" + monthOfYear + "-" + dayOfMonth);

}

}, calendar.get(Calendar.YEAR), calendar.get(Calendar.MONTH), calendar.get(Calendar.DAY_OF_MONTH));

datePickerDialog.show();

}

}