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これは私の問題です。アクティビティを閉じるためにfinish（）を呼び出した後、日付を選択するアクティビティを1つ開始しました。次のステップ私は同じ活動を再開し、私は活動がoncreateメソッドを呼び出していないことがわかった。なぜ誰に教えてもらえますか？アクティビティを再開し、アクティビティがoncreateを呼び出さない
ここはマニフェストファイル内のアクティビティおよびスタイルです。ここ
<activity android:name=".activity.CalendarViewActivity"
android:theme="@style/calendarview_activity"/>
<style name="calendarview_activity" parent="Theme.AppCompat.Dialog">
<item name="android:windowBackground">@drawable/calendarview_act_bg</item>
<item name="colorAccent">@color/blue_toolbar_title</item>
<item name="android:textColor">@color/colorBlack</item>
<item name="android:windowShowWallpaper">true</item>
<item name="windowNoTitle">true</item>
</style>
活動はすでにバックグラウンドで実行されていたので、アクティビティコード
public class CalendarViewActivity extends BaseActivity
implements View.OnClickListener, OnDateSelectedListener, OnMonthChangedListener {
private MaterialCalendarView mMaterialCV;
DatabaseReference mTimesheetDailyStatusRef;
private CalendarDay mMonthDate;
private TextView tvYear;
private TextView tvDay;
private static final int SUBMITTED = 2;
private static final int UN_SUBMITTED = 1;
private static final int RESULT_CODE = 200;
private ValueEventListener mStatusListener;
private DatabaseReference statusRootRef;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.layout_calendarview_activity);
initView();
initData();
}
private void initData() {
statusRootRef = FirebaseDatabase.getInstance().getReference().child(Constants
.COLLECTION_ENGINEER_ROOT).child(Constants.COLLECTION_TIMESHEETS_STATUS).child
(getUid());
mTimesheetDailyStatusRef = statusRootRef
.child(String.valueOf(Calendar.getInstance().get(Calendar.YEAR)))
.child(String.valueOf(Calendar.getInstance().get(Calendar.MONTH)));
CalendarDay calendarDay = CalendarDay.from(Calendar.getInstance());
setStatus(calendarDay);
}
@Override
protected void onResume() {
super.onResume();
}
private void initView() {
setSize();
mMaterialCV = (MaterialCalendarView) findViewById(R.id.calendarview_timesheet);
mMaterialCV.setWeekDayTextAppearance(getResColor(R.color.colorBlack));
mMaterialCV.setHeaderTextAppearance(getResColor(R.color.colorBlack));
mMaterialCV.setOnDateChangedListener(this);
mMaterialCV.setOnMonthChangedListener(this);
mMaterialCV.setCurrentDate(Calendar.getInstance());
Intent intent = getIntent();
mMonthDate = intent.getParcelableExtra(Constants.KEY_SELECTED_DATE);
if (mMonthDate != null) {
mMaterialCV.setSelectedDate(mMonthDate);
mMaterialCV.setCurrentDate(mMonthDate);
} else {
setCurrentDate();
}
tvDay = (TextView) findViewById(R.id.calendarview_day);
tvYear = (TextView) findViewById(R.id.calendarview_year);
setSelectDataToTop(mMonthDate);
TextView tvOK = (TextView) findViewById(R.id.choose_day_ok);
TextView tvCancel = (TextView) findViewById(R.id.choose_day_cancel);
tvCancel.setTypeface(fontMedium);
tvOK.setTypeface(fontMedium);
tvCancel.setOnClickListener(this);
tvOK.setOnClickListener(this);
}
private void setCurrentDate() {
Calendar c = Calendar.getInstance();
mMonthDate = CalendarDay.from(c);
}
private void setSize() {
WindowManager m = getWindowManager();
Display d = m.getDefaultDisplay();
WindowManager.LayoutParams p = getWindow().getAttributes();
p.height = (int) (d.getHeight() * 0.85);
p.width = (int) (d.getWidth() * 0.9);
p.alpha = 1.0f;
p.dimAmount = 0.0f;
getWindow().setAttributes(p);
getWindow().setGravity(Gravity.TOP);
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.choose_day_cancel:
finish();
break;
case R.id.choose_day_ok:
Intent backIntent = new Intent();
backIntent.putExtra(Constants.KEY_SELECTED_DATE, mMonthDate);
setResult(RESULT_CODE, backIntent);
finish();
break;
default:
break;
}
}
private void setSelectDataToTop(CalendarDay mMonthDate) {
tvYear.setText(String.valueOf(mMonthDate.getYear()));
int dayOfWeek = mMonthDate.getCalendar().get(Calendar.DAY_OF_WEEK);
String monthAndDay = TimeFormatUtil.getDate(mMonthDate.getCalendar().getTimeInMillis());
tvDay.setText(TimeFormatUtil.getWeekSimple(dayOfWeek) + ", " + monthAndDay);
}
@Override
public void onDateSelected(@NonNull MaterialCalendarView widget, @NonNull CalendarDay date,
boolean selected) {
mMonthDate = date;
setSelectDataToTop(date);
mMaterialCV.invalidateDecorators();
}
@Override
public void onMonthChanged(MaterialCalendarView widget, CalendarDay date) {
mTimesheetDailyStatusRef.removeEventListener(mStatusListener);
mTimesheetDailyStatusRef = null;
mStatusListener = null;
mMonthDate = date;
setStatus(mMonthDate);
}
private void setStatus(final CalendarDay calendarDay) {
mTimesheetDailyStatusRef = statusRootRef.child(String.valueOf(calendarDay.getYear())).child
(String.valueOf(calendarDay.getMonth()));
mStatusListener = new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
ArrayList<CalendarStatusDay> days = new ArrayList<>();
for (DataSnapshot child : dataSnapshot.getChildren()) {
CalendarStatusDay day = child.getValue(CalendarStatusDay.class);
days.add(day);
}
if (isFinishing()) {
return;
}
Calendar calendar = Calendar.getInstance();
ArrayList<CalendarDay> unSubmittedDays = new ArrayList<>();
unSubmittedDays.clear();
ArrayList<CalendarDay> submittedDays = new ArrayList<>();
submittedDays.clear();
for (CalendarStatusDay day : days) {
if (day.getStatus() == SUBMITTED) {
calendar.set(calendarDay.getYear(), calendarDay.getMonth(),
day.getDayOfmonth());
submittedDays.add(CalendarDay.from(calendar));
} else if (day.getStatus() == UN_SUBMITTED) {
calendar.set(calendarDay.getYear(), calendarDay.getMonth(),
day.getDayOfmonth());
unSubmittedDays.add(CalendarDay.from(calendar));
}
}
mMaterialCV.addDecorators(
new EventDecorator(getDrawable(R.drawable.submitted_selector),
submittedDays));
mMaterialCV.addDecorator(
new EventDecorator(getDrawable(R.drawable.unsubmitted_selector),
unSubmittedDays));
mMaterialCV.addDecorators();
unSubmittedDays.clear();
unSubmittedDays = null;
submittedDays.clear();
submittedDays = null;
days.clear();
days = null;
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
};
mTimesheetDailyStatusRef.addValueEventListener(mStatusListener);
}
}
のonCreate（メッセージフォーム他のアクティビティを取得するために）あなたのケースの次には、それは資源の不足のために破壊されますしない限り、活動が作成された初回のみ呼び出されます完了したアクティビティに行く時間onResume（） – HaroldSer