Question

如何为＆＃34; TODAYS DATE＆＃34;的日历视图设置onclick监听器。？该代码适用于onclick昨天的日期或明天的日期，但它不适用于今天的日期？有人可以帮忙吗？

代码：

MainActivity.java ：

final CalendarView calendarview=(CalendarView)findViewById(R.id.Calendarview);
final Button selectDate=(Button)findViewById(R.id.Date_seletcion_btn);

selectDate.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub

calendarview.setVisibility(View.VISIBLE);


}
});

calendarview.setClickable(true);

//calendarview.getSelectedDateVerticalBar();
/*calendarview.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {

@Override
public void onSelectedDayChange(CalendarView calendarview, int year, int month,
int day) {
// TODO Auto-generated method stub
int day1, month1, year1;

day1=day;
month1=month;
year1=year;


Calendar calendar=Calendar.getInstance();


clickeddate=calendarview.getDate();
calendar.setTimeInMillis(clickeddate);

//ArrayList<> array=calendar.getTouchables();

Toast.makeText(getApplicationContext(), "Date Selected: " + day,Toast.LENGTH_LONG).show();


Intent homein=new Intent(getApplicationContext(),HomePageActivity.class);

homein.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

homein.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);

startActivity(homein);
finish();

}
}); */

** XML代码：**

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/Calendar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="120dp"
android:gravity="center_horizontal"
android:orientation="vertical" >

<!--
<LinearLayout
android:id="@+id/Calendar_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"></LinearLayout>
-->

<Button
android:id="@+id/Date_seletcion_btn"
style="?android:attr/borderlessButtonStyle"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="20dp"
android:layout_marginTop="20dp"
android:background="@drawable/button_states"
android:text="@string/calendarselection" />

<!--
<DatePicker
android:id="@+id/datepicker"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:visibility="gone"
/>
-->

<CalendarView
android:id="@+id/Calendarview"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginBottom="20dp"
android:layout_marginLeft="20dp"
android:layout_marginRight="20dp"
android:visibility="gone"
android:clickable="true" />


</LinearLayout>

Answer 1

正如名称setOnDateChangeListener所说，当您更改日历上的日期时，将调用此方法。今天与否无关紧要。当您打开calendarview时，默认显示今天的日期。所以当你点击“今天”时，方法不会被调用。因为没有变化。选择其他日期，然后尝试选择“今天”。所以这个方法在变化时被调用。 In SO, this question was already answered。只需创建稍后将使用的自定义CalendarView类。

Answer 2

对话框类需要betterpickers libary

    public class DateDialog {

private static final SimpleDateFormat sSDF = new SimpleDateFormat("EEE", Locale.US);
private CalendarDatePickerDialog mDialog;
private FragmentManager mFragmentManager;

public DateDialog(FragmentManager fm, OnDateSetListener listener) {
    mFragmentManager = fm;
    Calendar c = Calendar.getInstance();
    String EEE = sSDF.format(c.getTime());
    if (EEE.contains("Sun")) {
        c.set(Calendar.DAY_OF_MONTH, -2);
    }

    mDialog = CalendarDatePickerDialog.newInstance(listener, c.get(Calendar.YEAR), c.get(Calendar.MONTH),
            c.get(Calendar.DAY_OF_MONTH));
}

public void show() {
    mDialog.show(mFragmentManager, "calendarDialog");
}
}

//否则创建BaseActivity类

 public abstract class BaseActivity extends FragmentActivity {
 private final SimpleDateFormat sSDF = new SimpleDateFormat("EEE", Locale.US);
  public void showCalendarDialog(OnDateSetListener listener, FragmentManager fm) {
    Calendar c = Calendar.getInstance();
    String EEE = sSDF.format(c.getTime());
    if (EEE.contains("Sun")) {
        c.set(Calendar.DAY_OF_MONTH, -2);
    }

CalendarDatePickerDialog mDialog = CalendarDatePickerDialog.newInstance(listener,    c.get(Calendar.YEAR),c.get(Calendar.MONTH),c.get(Calendar.DAY_OF_MONTH));
    mDialog.setCancelable(true);
    mDialog.show(fm, FRAG_TAG_DATE_PICKER);
}
 }

MainActivity.class

 MainActivity extends FragmentActivity implements OnDateSetListener{
private static final SimpleDateFormat sSDF_dmye = new SimpleDateFormat("dd/MM/yyyy     (EEE)", Locale.US);
 //call method when you want to click this action listener
       //call this mothod on  btn click action

       e.g showCalendarDialog(this, getSupportFragmentManager());


    }

Answer 3

OnGlobalLayoutListener会做到这一点。所以，如果你尝试：

calendarView.getViewTreeObserver().addOnGlobalLayoutListener(
    new ViewTreeObserver.OnGlobalLayoutListener(){
        @Override
        public void onGlobalLayout()
        {}
    });

Answer 4

Calendar disabledCal = Calendar.getInstance();
disabledCal.set(Calendar.DATE, disabledCal.get(Calendar.DATE) - 1);

今日日期的日历视图onclick监听器不起作用

4 个答案: