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Android Studio —— CalendarView

青乌 2022-01-22 阅读 194
效果

     视频效果


代码
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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="wrap_content"
    android:gravity="center"
    android:orientation="vertical"
    tools:context=".MainActivity">


    <CalendarView
        android:id="@+id/calendarView"
        android:layout_width="match_parent"
        android:layout_height="400dp"
        android:layout_weight="1" />

    <Button
        android:id="@+id/button"
        android:layout_width="100dp"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        android:text="Button" />
</LinearLayout>
package com.example.application;

import androidx.annotation.NonNull;
import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.CalendarView;
import android.widget.Toast;

import java.text.SimpleDateFormat;

public class MainActivity extends AppCompatActivity {

    private static SimpleDateFormat simpleDataFormat = new SimpleDateFormat("yyyy年MM月dd日");
    private String Date;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        CalendarView calendarView = findViewById(R.id.calendarView);
        if(calendarView != null) {
            Date = simpleDataFormat.format(calendarView.getDate());
            calendarView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
                @Override
                public void onSelectedDayChange(@NonNull CalendarView calendarView, int i, int i1, int i2) {
                    Date = i + "年" + (i1+1) + "月" + i2 + "日";
                }
            });
        }

        Button button = findViewById(R.id.button);
        if(button != null){
            button.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Toast.makeText(MainActivity.this, Date, Toast.LENGTH_SHORT).show();
                }
            });
        }
    }
}

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