package com.link2me.android.calendar;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.text.format.DateFormat;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.app.AppCompatActivity;
import com.link2me.android.adpater.GridCellAdapter;
import java.util.Calendar;
import java.util.Locale;
public class MainActivity extends AppCompatActivity implements View.OnClickListener {
private static final String TAG = MainActivity.class.getSimpleName();
private Context mContext;
private TextView currentMonth;
private ImageView prevYear;
private ImageView prevMonth;
private ImageView nextMonth;
private ImageView nextYear;
private ImageView selectDate;
private GridView calendarView;
private GridCellAdapter adapter;
private Calendar cal;
private int month, year;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mContext = MainActivity.this;
cal = Calendar.getInstance(Locale.getDefault());
month = cal.get(Calendar.MONTH) + 1;
year = cal.get(Calendar.YEAR);
prevYear = (ImageView) this.findViewById(R.id.prevYear);
prevYear.setOnClickListener(this);
prevMonth = (ImageView) this.findViewById(R.id.prevMonth);
prevMonth.setOnClickListener(this);
currentMonth = (TextView) this.findViewById(R.id.currentMonth);
currentMonth.setText(year +"년 " + month + "월");
currentMonth.setOnClickListener(this);
nextMonth = (ImageView) this.findViewById(R.id.nextMonth);
nextMonth.setOnClickListener(this);
nextYear = (ImageView) this.findViewById(R.id.nextYear);
nextYear.setOnClickListener(this);
selectDate = (ImageView) this.findViewById(R.id.selectDate);
selectDate.setOnClickListener(this);
calendarView = (GridView) this.findViewById(R.id.calendar);
// Initialised
adapter = new GridCellAdapter(mContext, month, year);
adapter.notifyDataSetChanged();
calendarView.setAdapter(adapter);
}
private void setGridCellAdapterToDate(int month, int year) {
adapter = new GridCellAdapter(mContext, month, year);
adapter.notifyDataSetChanged();
calendarView.setAdapter(adapter);
// 상단 화면 날짜 출력
currentMonth.setText(year +"년 " + month + "월");
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.prevYear:
year--;
setGridCellAdapterToDate(month, year);
break;
case R.id.prevMonth:
if (month <= 1) {
month = 12;
year--;
} else {
month--;
}
setGridCellAdapterToDate(month, year);
break;
case R.id.currentMonth:
cal = Calendar.getInstance(Locale.getDefault()); // 현재날짜와 시간으로 설정된다.
month = cal.get(Calendar.MONTH) + 1; // 0 ~ 11월을 반환하므로 + 1을 해준다.
year = cal.get(Calendar.YEAR);
setGridCellAdapterToDate(month, year);
break;
case R.id.nextMonth:
if (month > 11) {
month = 1;
year++;
} else {
month++;
}
setGridCellAdapterToDate(month, year);
break;
case R.id.nextYear:
year++;
setGridCellAdapterToDate(month, year);
break;
case R.id.selectDate:
LayoutInflater inflater = (LayoutInflater) getSystemService(LAYOUT_INFLATER_SERVICE);
final View layout = inflater.inflate(R.layout.select_calendar_input,null);
AlertDialog.Builder cal_confirm = new AlertDialog.Builder(mContext);
cal_confirm.setTitle("검색할 년도 입력");
cal_confirm.setView(layout);
final EditText etYear = layout.findViewById(R.id.selectYear);
final EditText etMonth = layout.findViewById(R.id.selectMonth);
// 확인 버튼 설정
cal_confirm.setPositiveButton("검색", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
String selectYear = etYear.getText().toString().trim();
if(selectYear.length() == 0) {
AlertDialog.Builder phoneNO_confirm = new AlertDialog.Builder(mContext);
phoneNO_confirm.setMessage("년도를 입력하세요.").setCancelable(false).setPositiveButton("확인",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { // 'YES'
dialog.dismiss();
}
});
AlertDialog alert = phoneNO_confirm.create();
alert.show();
return;
}
String selectMonth = etMonth.getText().toString().trim();
if(selectMonth.length() == 0) {
AlertDialog.Builder phoneNO_confirm = new AlertDialog.Builder(mContext);
phoneNO_confirm.setMessage("월(月)을 입력하세요.").setCancelable(false).setPositiveButton("확인",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) { // 'YES'
dialog.dismiss();
}
});
AlertDialog alert = phoneNO_confirm.create();
alert.show();
return;
}
month = Integer.parseInt(selectMonth);
year = Integer.parseInt(selectYear);
setGridCellAdapterToDate(month, year);
}
});
cal_confirm.setNegativeButton("취소", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
dialog.dismiss();
}
});
cal_confirm.show();
break;
}
}
@Override
public void onDestroy() {
Log.d(TAG, "Destroying View ...");
super.onDestroy();
}
}
|
