我在我的应用程序中使用日历，在我的应用程序中成功地实现了日历，但问题是如何启用和禁用特定日期(例如:只需要启用所有月份的星期一或所有月份的星期一和星期日) .
我的日历 View
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.util.Locale;
import android.app.Activity;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.infometricx.adapter.CalendarAdapter;
import com.infometricx.utils.CalendarUtility;
public class CalendarView extends Activity {
public GregorianCalendar month, itemmonth;// calendar instances.
public CalendarAdapter adapter;// adapter instance
public Handler handler;// for grabbing some event values for showing the dot
// marker.
public ArrayList<String> items; // container to store calendar items which
// needs showing the event marker
ArrayList<String> event;
LinearLayout rLayout;
ArrayList<String> date;
ArrayList<String> desc;
Typeface MyriadPro;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.calender);
Locale.setDefault(Locale.US);
rLayout = (LinearLayout) findViewById(R.id.text);
MyriadPro = Typeface.createFromAsset(getAssets(),
"fonts/MyriadPro-Light.otf");
month = (GregorianCalendar) GregorianCalendar.getInstance();
itemmonth = (GregorianCalendar) month.clone();
items = new ArrayList<String>();
adapter = new CalendarAdapter(this, month);
GridView gridview = (GridView) findViewById(R.id.gridview);
gridview.setAdapter(adapter);
handler = new Handler();
handler.post(calendarUpdater);
TextView title = (TextView) findViewById(R.id.title);
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
title.setTypeface(MyriadPro);
RelativeLayout previous = (RelativeLayout) findViewById(R.id.previous);
previous.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setPreviousMonth();
refreshCalendar();
}
});
RelativeLayout next = (RelativeLayout) findViewById(R.id.next);
next.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setNextMonth();
refreshCalendar();
}
});
gridview.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> parent, View v,
int position, long id) {
// removing the previous view if added
if (((LinearLayout) rLayout).getChildCount() > 0) {
((LinearLayout) rLayout).removeAllViews();
}
desc = new ArrayList<String>();
date = new ArrayList<String>();
((CalendarAdapter) parent.getAdapter()).setSelected(v);
String selectedGridDate = CalendarAdapter.dayString
.get(position);
Log.d("selectedGridDate", "----->" + selectedGridDate);
String[] separatedTime = selectedGridDate.split("-");
String gridvalueString = separatedTime[2].replaceFirst("^0*",
"");// taking last part of date. ie; 2 from 2012-12-02.
int gridvalue = Integer.parseInt(gridvalueString);
// navigate to next or previous month on clicking offdays.
if ((gridvalue > 10) && (position < 8)) {
setPreviousMonth();
refreshCalendar();
} else if ((gridvalue < 7) && (position > 28)) {
setNextMonth();
refreshCalendar();
}
((CalendarAdapter) parent.getAdapter()).setSelected(v);
for (int i = 0; i < CalendarUtility.startDates.size(); i++) {
}
for (int i = 0; i < CalendarUtility.startDates.size(); i++) {
if (CalendarUtility.startDates.get(i).equals(
selectedGridDate)) {
desc.add(CalendarUtility.nameOfEvent.get(i));
}
}
if (desc.size() > 0) {
for (int i = 0; i < desc.size(); i++) {
TextView rowTextView = new TextView(CalendarView.this);
// set some properties of rowTextView or something
rowTextView.setText("Event:" + desc.get(i));
rowTextView.setTextColor(Color.BLACK);
// add the textview to the linearlayout
rLayout.addView(rowTextView);
}
}
desc = null;
}
});
}
protected void setNextMonth() {
if (month.get(GregorianCalendar.MONTH) == month
.getActualMaximum(GregorianCalendar.MONTH)) {
month.set((month.get(GregorianCalendar.YEAR) + 1),
month.getActualMinimum(GregorianCalendar.MONTH), 1);
} else {
month.set(GregorianCalendar.MONTH,
month.get(GregorianCalendar.MONTH) + 1);
}
}
protected void setPreviousMonth() {
if (month.get(GregorianCalendar.MONTH) == month
.getActualMinimum(GregorianCalendar.MONTH)) {
month.set((month.get(GregorianCalendar.YEAR) - 1),
month.getActualMaximum(GregorianCalendar.MONTH), 1);
} else {
month.set(GregorianCalendar.MONTH,
month.get(GregorianCalendar.MONTH) - 1);
}
}
protected void showToast(String string) {
Toast.makeText(this, string, Toast.LENGTH_SHORT).show();
}
public void refreshCalendar() {
TextView title = (TextView) findViewById(R.id.title);
adapter.refreshDays();
adapter.notifyDataSetChanged();
handler.post(calendarUpdater); // generate some calendar items
title.setText(android.text.format.DateFormat.format("MMMM yyyy", month));
}
public Runnable calendarUpdater = new Runnable() {
@Override
public void run() {
items.clear();
// Print dates of the current week
// DateFormat df = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
event = CalendarUtility.readCalendarEvent(CalendarView.this);
Log.d("=====Event====", event.toString());
Log.d("=====Date ARRAY====", CalendarUtility.startDates.toString());
for (int i = 0; i < CalendarUtility.startDates.size(); i++) {
itemmonth.add(GregorianCalendar.DATE, 1);
items.add(CalendarUtility.startDates.get(i).toString());
}
adapter.setItems(items);
adapter.notifyDataSetChanged();
}
};
}
我的日历适配器
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.GregorianCalendar;
import java.util.List;
import java.util.Locale;
import android.content.Context;
import android.graphics.Color;
import android.graphics.Typeface;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import com.infometricx.goappointed.R;
public class CalendarAdapter extends BaseAdapter {
private Context mContext;
private java.util.Calendar month;
public GregorianCalendar pmonth; // calendar instance for previous month
/**
* calendar instance for previous month for getting complete view
*/
public GregorianCalendar pmonthmaxset;
private GregorianCalendar selectedDate;
int firstDay;
int maxWeeknumber;
int maxP;
int calMaxP;
int lastWeekDay;
int leftDays;
int mnthlength;
String itemvalue, curentDateString;
DateFormat df;
private ArrayList<String> items;
public static List<String> dayString;
private View previousView;
Typeface mMypriad;
public CalendarAdapter(Context c, GregorianCalendar monthCalendar) {
CalendarAdapter.dayString = new ArrayList<String>();
Locale.setDefault(Locale.US);
mMypriad = Typeface.createFromAsset(c.getAssets(),
"fonts/MyriadPro-Light.otf");
month = monthCalendar;
selectedDate = (GregorianCalendar) monthCalendar.clone();
mContext = c;
month.set(GregorianCalendar.DAY_OF_MONTH, 1);
this.items = new ArrayList<String>();
df = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
curentDateString = df.format(selectedDate.getTime());
refreshDays();
}
public void setItems(ArrayList<String> items) {
for (int i = 0; i != items.size(); i++) {
if (items.get(i).length() == 1) {
items.set(i, "0" + items.get(i));
}
}
this.items = items;
}
public int getCount() {
return dayString.size();
}
public Object getItem(int position) {
return dayString.get(position);
}
public long getItemId(int position) {
return 0;
}
// create a new view for each item referenced by the Adapter
public View getView(int position, View convertView, ViewGroup parent) {
View v = convertView;
final TextView dayView;
if (convertView == null) { // if it's not recycled, initialize some
// attributes
LayoutInflater vi = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.calenderitem, null);
}
dayView = (TextView) v.findViewById(R.id.date);
// separates daystring into parts.
String[] separatedTime = dayString.get(position).split("-");
// taking last part of date. ie; 2 from 2012-12-02
String gridvalue = separatedTime[2].replaceFirst("^0*", "");
// checking whether the day is in current month or not.
if ((Integer.parseInt(gridvalue) > 1) && (position < firstDay)) {
// setting offdays to white color.
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
} else if ((Integer.parseInt(gridvalue) < 7) && (position > 28)) {
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
} else {
// setting curent month's days in blue color.
dayView.setTextColor(Color.BLACK);
}
if (dayString.get(position).equals(curentDateString)) {
setSelected(v);
previousView = v;
} else {
v.setBackgroundResource(R.drawable.list_item_background);
}
dayView.setText(gridvalue);
dayView.setTypeface(mMypriad);
// create date string for comparison
String date = dayString.get(position);
Log.d("date", "--->" + date);
if (date.length() == 1) {
date = "0" + date;
}
String monthStr = "" + (month.get(GregorianCalendar.MONTH) + 1);
if (monthStr.length() == 1) {
monthStr = "0" + monthStr;
}
return v;
}
public View setSelected(View view) {
if (previousView != null) {
previousView.setBackgroundResource(R.drawable.list_item_background);
}
previousView = view;
view.setBackgroundResource(R.drawable.calendar_cel_selectl);
return view;
}
public void refreshDays() {
// clear items
items.clear();
dayString.clear();
Locale.setDefault(Locale.US);
pmonth = (GregorianCalendar) month.clone();
// month start day. ie; sun, mon, etc
firstDay = month.get(GregorianCalendar.DAY_OF_WEEK);
// finding number of weeks in current month.
maxWeeknumber = month.getActualMaximum(GregorianCalendar.WEEK_OF_MONTH);
// allocating maximum row number for the gridview.
mnthlength = maxWeeknumber * 7;
maxP = getMaxP(); // previous month maximum day 31,30....
calMaxP = maxP - (firstDay - 1);// calendar offday starting 24,25 ...
/**
* Calendar instance for getting a complete gridview including the three
* month's (previous,current,next) dates.
*/
pmonthmaxset = (GregorianCalendar) pmonth.clone();
/**
* setting the start date as previous month's required date.
*/
pmonthmaxset.set(GregorianCalendar.DAY_OF_MONTH, calMaxP + 1);
/**
* filling calendar gridview.
*/
for (int n = 0; n < mnthlength; n++) {
itemvalue = df.format(pmonthmaxset.getTime());
pmonthmaxset.add(GregorianCalendar.DATE, 1);
dayString.add(itemvalue);
}
}
private int getMaxP() {
int maxP;
if (month.get(GregorianCalendar.MONTH) == month
.getActualMinimum(GregorianCalendar.MONTH)) {
pmonth.set((month.get(GregorianCalendar.YEAR) - 1),
month.getActualMaximum(GregorianCalendar.MONTH), 1);
} else {
pmonth.set(GregorianCalendar.MONTH,
month.get(GregorianCalendar.MONTH) - 1);
}
maxP = pmonth.getActualMaximum(GregorianCalendar.DAY_OF_MONTH);
return maxP;
}
}
相关方法:
dayView = (TextView) v.findViewById(R.id.date);
// separates daystring into parts.
String[] separatedTime = dayString.get(position).split("-");
// taking last part of date. ie; 2 from 2012-12-02
String gridvalue = separatedTime[2].replaceFirst("^0*", "");
// checking whether the day is in current month or not.
if ((Integer.parseInt(gridvalue) > 1) && (position < firstDay)) {
// setting offdays to white color.
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
} else if ((Integer.parseInt(gridvalue) < 7) && (position > 28)) {
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
} else {
// setting curent month's days in blue color.
dayView.setTextColor(Color.BLACK);
}
这是我的适配器类，我在其中形成了一个日历 View
帮我解决一下， 提前致谢。
最佳答案
dayView = (TextView) v.findViewById(R.id.date);
// separates daystring into parts.
String[] separatedTime = dayString.get(position).split("-");
// taking last part of date. ie; 2 from 2012-12-02
String gridvalue = separatedTime[2].replaceFirst("^0*", "");
// checking whether the day is in current month or not.
if ((Integer.parseInt(gridvalue) > 1) && (position < firstDay)) {
// setting offdays to white color.
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
float alpha = 0.55f;
AlphaAnimation alphaUp = new AlphaAnimation(alpha, alpha);
alphaUp.setFillAfter(true);
dayView.startAnimation(alphaUp);
} else if ((Integer.parseInt(gridvalue) < 7) && (position > 28)) {
dayView.setTextColor(Color.WHITE);
dayView.setClickable(false);
dayView.setFocusable(false);
float alpha = 0.35f;
AlphaAnimation alphaUp = new AlphaAnimation(alpha, alpha);
alphaUp.setFillAfter(true);
dayView.startAnimation(alphaUp);
dayView.setClickable(false);
} else {
// setting curent month's days in blue color.
dayView.setTextColor(Color.BLACK);
float alpha = 0.75f;
AlphaAnimation alphaUp = new AlphaAnimation(alpha, alpha);
alphaUp.setFillAfter(true);
dayView.startAnimation(alphaUp);
dayView.setClickable(false);
}
关于android - 在 android 中启用和禁用日期，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21473975/