package com.tyczj.extendedcalendarview;
import java.util.Calendar;
import java.util.Locale;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.drawable.Drawable;
import android.os.Build;
import android.util.AttributeSet;
import android.view.GestureDetector;
import android.view.GestureDetector.SimpleOnGestureListener;
import android.view.MotionEvent;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.view.View.OnClickListener;
public class ExtendedCalendarView extends RelativeLayout implements OnItemClickListener,
OnClickListener{
private Context context;
private OnDayClickListener dayListener;
private GridView calendar;
private CalendarAdapter mAdapter;
private Calendar cal;
private TextView month;
private RelativeLayout base;
private ImageView next,prev;
private int gestureType = 0;
private final GestureDetector calendarGesture = new GestureDetector(context,new GestureListener());
public static final int NO_GESTURE = 0;
public static final int LEFT_RIGHT_GESTURE = 1;
public static final int UP_DOWN_GESTURE = 2;
private static final int SWIPE_MIN_DISTANCE = 120;
private static final int SWIPE_THRESHOLD_VELOCITY = 200;
public interface OnDayClickListener{
public void onDayClicked(AdapterView<?> adapter, View view, int position, long id, Day day);
}
public ExtendedCalendarView(Context context) {
super(context);
this.context = context;
init();
}
public ExtendedCalendarView(Context context, AttributeSet attrs) {
super(context, attrs);
this.context = context;
init();
}
public ExtendedCalendarView(Context context, AttributeSet attrs,int defStyle) {
super(context, attrs, defStyle);
this.context = context;
init();
}
private void init(){
cal = Calendar.getInstance();
base = new RelativeLayout(context);
base.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT,LayoutParams.WRAP_CONTENT));
base.setMinimumHeight(50);
base.setId(4);
LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.leftMargin = 16;
params.topMargin = 50;
params.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
params.addRule(RelativeLayout.CENTER_VERTICAL);
prev = new ImageView(context);
prev.setId(1);
prev.setLayoutParams(params);
prev.setImageResource(R.drawable.navigation_previous_item);
prev.setOnClickListener(this);
base.addView(prev);
params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.addRule(RelativeLayout.CENTER_HORIZONTAL);
params.addRule(RelativeLayout.CENTER_VERTICAL);
month = new TextView(context);
month.setId(2);
month.setLayoutParams(params);
month.setTextAppearance(context, android.R.attr.textAppearanceLarge);
month.setText(cal.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.getDefault())+" "+cal.get(Calendar.YEAR));
month.setTextSize(25);
base.addView(month);
params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.rightMargin = 16;
params.topMargin = 50;
params.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);
params.addRule(RelativeLayout.CENTER_VERTICAL);
next = new ImageView(context);
next.setImageResource(R.drawable.navigation_next_item);
next.setLayoutParams(params);
next.setId(3);
next.setOnClickListener(this);
base.addView(next);
addView(base);
params = new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
params.bottomMargin = 20;
params.addRule(RelativeLayout.ALIGN_PARENT_LEFT);
params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
params.addRule(RelativeLayout.BELOW, base.getId());
calendar = new GridView(context);
calendar.setLayoutParams(params);
calendar.setVerticalSpacing(4);
calendar.setHorizontalSpacing(4);
calendar.setNumColumns(7);
calendar.setChoiceMode(GridView.CHOICE_MODE_SINGLE);
calendar.setDrawSelectorOnTop(true);
mAdapter = new CalendarAdapter(context,cal);
calendar.setAdapter(mAdapter);
calendar.setOnTouchListener(new OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return calendarGesture.onTouchEvent(event);
}
});
addView(calendar);
}
private class GestureListener extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,float velocityY) {
if(gestureType == LEFT_RIGHT_GESTURE){
if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
nextMonth();
return true; // Right to left
} else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
previousMonth();
return true; // Left to right
}
}else if(gestureType == UP_DOWN_GESTURE){
if (e1.getY() - e2.getY() > SWIPE_MIN_DISTANCE && Math.abs(velocityY) > SWIPE_THRESHOLD_VELOCITY) {
nextMonth();
return true; // Bottom to top
} else if (e2.getY() - e1.getY() > SWIPE_MIN_DISTANCE && Math.abs(velocityY) > SWIPE_THRESHOLD_VELOCITY) {
previousMonth();
return true; // Top to bottom
}
}
return false;
}
}
@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
if(dayListener != null){
Day d = (Day) mAdapter.getItem(arg2);
if(d.getDay() != 0){
dayListener.onDayClicked(arg0, arg1, arg2, arg3,d);
}
}
}
/**
*
* @param listener
*
* Set a listener for when you press on a day in the month
*/
public void setOnDayClickListener(OnDayClickListener listener){
if(calendar != null){
dayListener = listener;
calendar.setOnItemClickListener(this);
}
}
@Override
public void onClick(View v) {
switch(v.getId()){
case 1:
previousMonth();
break;
case 3:
nextMonth();
break;
default:
break;
}
}
private void previousMonth(){
if(cal.get(Calendar.MONTH) == cal.getActualMinimum(Calendar.MONTH)) {
cal.set((cal.get(Calendar.YEAR)-1),cal.getActualMaximum(Calendar.MONTH),1);
} else {
cal.set(Calendar.MONTH,cal.get(Calendar.MONTH)-1);
}
rebuildCalendar();
}
private void nextMonth(){
if(cal.get(Calendar.MONTH) == cal.getActualMaximum(Calendar.MONTH)) {
cal.set((cal.get(Calendar.YEAR)+1),cal.getActualMinimum(Calendar.MONTH),1);
} else {
cal.set(Calendar.MONTH,cal.get(Calendar.MONTH)+1);
}
rebuildCalendar();
}
private void rebuildCalendar(){
if(month != null){
month.setText(cal.getDisplayName(Calendar.MONTH, Calendar.LONG, Locale.getDefault())+" "+cal.get(Calendar.YEAR));
refreshCalendar();
}
}
/**
* Refreshes the month
*/
public void refreshCalendar(){
mAdapter.refreshDays();
mAdapter.notifyDataSetChanged();
}
/**
*
* @param color
*
* Sets the background color of the month bar
*/
public void setMonthTextBackgroundColor(int color){
base.setBackgroundColor(color);
}
@SuppressLint("NewApi")
/**
*
* @param drawable
*
* Sets the background color of the month bar. Requires at least API level 16
*/
public void setMonthTextBackgroundDrawable(Drawable drawable){
if(Build.VERSION.SDK_INT > Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1){
base.setBackground(drawable);
}
}
/**
*
* @param resource
*
* Sets the background color of the month bar
*/
public void setMonehtTextBackgroundResource(int resource){
base.setBackgroundResource(resource);
}
/**
*
* @param recource
*
* change the image of the previous month button
*/
public void setPreviousMonthButtonImageResource(int recource){
prev.setImageResource(recource);
}
/**
*
* @param bitmap
*
* change the image of the previous month button
*/
public void setPreviousMonthButtonImageBitmap(Bitmap bitmap){
prev.setImageBitmap(bitmap);
}
/**
*
* @param drawable
*
* change the image of the previous month button
*/
public void setPreviousMonthButtonImageDrawable(Drawable drawable){
prev.setImageDrawable(drawable);
}
/**
*
* @param recource
*
* change the image of the next month button
*/
public void setNextMonthButtonImageResource(int recource){
next.setImageResource(recource);
}
/**
*
* @param bitmap
*
* change the image of the next month button
*/
public void setNextMonthButtonImageBitmap(Bitmap bitmap){
next.setImageBitmap(bitmap);
}
/**
*
* @param drawable
*
* change the image of the next month button
*/
public void setNextMonthButtonImageDrawable(Drawable drawable){
next.setImageDrawable(drawable);
}
/**
*
* @param gestureType
*
* Allow swiping the calendar left/right or up/down to change the month.
*
* Default value no gesture
*/
public void setGesture(int gestureType){
this.gestureType = gestureType;
}
}
