我使用自定义日历视图 Viewpager - FragmentStateAdapter - 片段 - Viewgroup -view
当我滑动页面时，我可以获得第一个片段和第二个片段，但是第三个片段没有显示任何内容。所以我调试并且draw()方法不会调用View类。
我使用Invalidate(), setWillNotDraw(false)但它不起作用。
我在日志中看到片段循环运行正常。我不知道问题是什么。
这是我的代码：
FragmentActivity
public class FindClassFragmentActivity extends FragmentActivity {
private static final int COUNT_PAGE = 12;
ViewPager mViewPager;
CalendarFragmentStatePagerAdapter calendarAdapter;
ImageButton previous;
ImageButton next;
TextView presentMonth;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.findclass_main_layout);
mViewPager = (ViewPager) findViewById(R.id.viewpager);
previous = (ImageButton) findViewById(R.id.previous_month);
next = (ImageButton) findViewById(R.id.next_month);
presentMonth = (TextView) findViewById(R.id.present_month);
calendarAdapter = new CalendarFragmentStatePagerAdapter(getSupportFragmentManager());
mViewPager.setAdapter(calendarAdapter);
// mViewPager.setOffscreenPageLimit(24);
}
public void PrevOrNext(View v) {
switch (v.getId()) {
case R.id.previous_month :
break;
case R.id.next_month :
break;
}
}
}
FragmentStatePagerAdapter
public class CalendarFragmentStatePagerAdapter extends FragmentStatePagerAdapter {
private HashMap<Integer, MonthFragment> monthMap;
private int numOfMonth;
public CalendarFragmentStatePagerAdapter(FragmentManager fm) {
super(fm);
}
@Override
public int getCount() {
return 24;
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
Log.e("solme6", "instantiateItem : " + position );
return super.instantiateItem(container, position);
}
@Override
public Fragment getItem(int position) {
return MonthFragment.newInstance(position);
}
}
CalendarMonthView
public class CalendarMonthView extends ViewGroup {
private final int mScreenWidth;
private final int mWidthDate;
private int mDateOfWeek; // 1일의 요일
private int mDefaultTextSize = 40;
private int mTextColor = Color.BLUE;
public static String[] DAY_OF_WEEK = null;
public CalendarMonthView(Context context, AttributeSet attrs) {
super(context, attrs);
mScreenWidth = getResources().getDisplayMetrics().widthPixels;
mWidthDate = mScreenWidth / 7;
DAY_OF_WEEK = getResources().getStringArray(R.array.day_of_week);
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
int count = getChildCount();
Log.e("solme",Integer.toString(count));
int maxHeight = 0;
int childState = 0;
int childViewFullWidth = 0;
int childViewFullheight = 0;
for(int i=0; i < count; i++) {
final View child = getChildAt(i);
getChildAt(i).setWillNotDraw(false);
if (child.getVisibility() == GONE) {
continue;
}
childViewFullWidth = child.getMeasuredWidth();
childViewFullheight = child.getMeasuredHeight();
measureChild(child, widthMeasureSpec, heightMeasureSpec); // 자식의 크기 측정.
childState = combineMeasuredStates(childState, child.getMeasuredState());
}
setMeasuredDimension(childViewFullWidth, childViewFullheight);
LayoutParams params = getLayoutParams();
params.height = getMeasuredHeight();
params.height = maxHeight;
}
@Override
protected void onLayout(boolean changed, int l, int t, int r, int b) {
final int count = getChildCount();
int curLeft = 0; // 왼쪽 스타트 지점 값.
int curTop = 0;
int eachCellWidth, eachCellHeight;
int curDayHeight;
final int childWidth = this.getMeasuredWidth(); // 1440
final int childHeight = this.getMeasuredHeight(); //2355
for (int i = 0; i < count; i++) {
View child = getChildAt(i);
if (child.getVisibility() == GONE)
return;
child.measure(MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.AT_MOST), MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.AT_MOST));
eachCellWidth = mWidthDate;
curDayHeight = 100;
eachCellHeight = (getMeasuredHeight() - curDayHeight) / 6;
if (i < 7) {
child.layout(curLeft, curTop, curLeft + eachCellWidth, curTop + curDayHeight);
curLeft += eachCellWidth;
if (curLeft + eachCellWidth >= childWidth) {
curLeft = 0;
curTop += curDayHeight;
}
} else {
if (i == 7) {
curLeft = (mDateOfWeek - 1) * eachCellWidth;
}
child.layout(curLeft, curTop, curLeft + eachCellWidth, curTop + eachCellHeight);
curLeft += eachCellWidth;
if (curLeft + eachCellWidth >= childWidth) {
curLeft = 0;
curTop += eachCellHeight;
}
}
}
}
@Override
protected void onDraw(Canvas canvas) {
Log.e("solme6", "CalendarMonthView : onDraw");
super.onDraw(canvas);
}
@Override
public void draw(Canvas canvas) {
Log.e("solme6", "CalendarMonthView : draw");
super.draw(canvas);
}
@Override
protected void dispatchDraw(Canvas canvas) {
super.dispatchDraw(canvas);
}
private Paint makePaint(int color) {
Paint p = new Paint(Paint.ANTI_ALIAS_FLAG);
p.setColor(color);
p.setTextSize(mDefaultTextSize);
return p;
}
public void initCalendar(int dayOfWeek, int maxDateOfMonth) {
mDateOfWeek = dayOfWeek;
}
}
CalendarcellView
public class CalendarCellView extends View {
Paint mPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
Paint mPaintTextWhite = new Paint(Paint.ANTI_ALIAS_FLAG);
Paint mPaintBackground = new Paint(Paint.ANTI_ALIAS_FLAG);
Paint mPaintBackgroundToday = new Paint(Paint.ANTI_ALIAS_FLAG);
Paint mPaintBackgroundEvent = new Paint(Paint.ANTI_ALIAS_FLAG);
private int dayOfWeek = -1;
private boolean isStaticText = false;
private long millis;
private Rect rect;
private boolean isTouchMode;
private int dp11;
private int dp16;
private boolean hasEvent = false;
private int[] mColorEvents;
private final float RADIUS = 100f;
public CalendarCellView(Context context) {
super(context);
initialize(context);
Log.e("solme6", "CalendarCellView : constructor");
}
public CalendarCellView(Context context, AttributeSet attrs) {
super(context, attrs);
initialize(context);
}
private void initialize(Context context) {
dp11 = (int) dp2px(getContext(), 11);
dp16 = (int) dp2px(getContext(), 16);
mPaint.setColor(Color.BLACK);
mPaint.setTextSize(dp11);
mPaint.setTextAlign(Paint.Align.CENTER);
mPaintTextWhite.setColor(Color.WHITE);
mPaintTextWhite.setTextSize(dp11);
mPaintTextWhite.setTextAlign(Paint.Align.CENTER);
mPaintBackground.setColor(ContextCompat.getColor(getContext(), R.color.colorPrimaryDark));
mPaintBackgroundToday.setColor(ContextCompat.getColor(getContext(), R.color.today));
mPaintBackgroundEvent.setColor(ContextCompat.getColor(getContext(), R.color.colorPrimary));
setPadding(30, 0, 30, 0);
}
public float dp2px(Context context, float dp) {
return dp * context.getResources().getDisplayMetrics().density;
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
Log.e("solme6","CalendarCellView : onMeasure");
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
}
@Override
protected void onLayout(boolean changed, int left, int top, int right, int bottom) {
Log.e("solme6", "CalendarCellView : onLayout");
super.onLayout(changed, left, top, right, bottom);
}
@Override
protected void dispatchDraw(Canvas canvas) {
Log.e("solme6", "CalendarCellView : dispatchDraw");
}
@Override
public void draw(Canvas canvas) {
Log.e("solme6", "CalendarCellView : draw");
super.draw(canvas);
}
@Override
protected void onDraw(Canvas canvas) {
Log.e("solme6", "CalendarCellView : onDraw");
super.onDraw(canvas);
int xPos = (canvas.getWidth() / 2);
int yPos = (int) ((canvas.getHeight() / 2) - ((mPaint.descent() + mPaint.ascent()) / 2));
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(millis);
set
CalendarMonthView calendarView = (CalendarMonthView) getParent();
if (calendarView.getParent() instanceof ViewPager) {
ViewGroup parent = (ViewPager) calendarView.getParent();
CalendarCellView tagView = (CalendarCellView) parent.getTag();
if (!isStaticText && tagView != null && tagView.getTag() != null && tagView.getTag() instanceof Long) {
long millis = (long) tagView.getTag();
if (isSameDay(millis, this.millis)) {
// RectF rectF = new RectF(xPos - dp16, getHeight() / 2 - dp16, xPos + dp16, getHeight() / 2 + dp16);
// canvas.drawRoundRect(rectF, RADIUS, RADIUS, mPaintBackground);
}
}
}
if (!isStaticText && isToday(millis)) {
RectF rectF = new RectF(xPos - dp16, getHeight() / 2 - dp16, xPos + dp16, getHeight() / 2 + dp16);
canvas.drawRoundRect(rectF, RADIUS, RADIUS, mPaintBackgroundToday);
}
if (isStaticText) {
// 요일 표시
canvas.drawText(CalendarMonthView.DAY_OF_WEEK[dayOfWeek], xPos, yPos, mPaint);
} else {
// 날짜 표시
if (isToday(millis)) {
canvas.drawText(calendar.get(Calendar.DATE) + "", xPos, yPos, mPaintTextWhite);
} else {
canvas.drawText(calendar.get(Calendar.DATE) + "", xPos, yPos, mPaint);
}
}
if (hasEvent) {
mPaintBackgroundEvent.setColor(getResources().getColor(mColorEvents[0]));
RectF rectF = new RectF(xPos - 5, getHeight() / 2 + 20, xPos + 5, getHeight() / 2 + 30);
canvas.drawRoundRect(rectF, RADIUS, RADIUS, mPaintBackgroundToday);
}
}
private boolean isToday(long millis) {
Calendar cal1 = Calendar.getInstance();
return isSameDay(cal1.getTimeInMillis(), millis);
}
public void setDate(long millis) {
this.millis = millis;
setTag(millis);
}
public void setDayOfWeek(int dayOfWeek) {
this.dayOfWeek = dayOfWeek;
isStaticText = true;
}
public void setEvent(int... resid) {
hasEvent = true;
mColorEvents = resid;
}
public boolean isSameDay(long millis1, long millis2) {
Calendar cal1 = Calendar.getInstance();
Calendar cal2 = Calendar.getInstance();
cal1.setTimeInMillis(millis1);
cal2.setTimeInMillis(millis2);
Log.d("hatti.calendar", "" + cal1.get(Calendar.YEAR) + "" + cal1.get(Calendar.MONTH) + "" + cal1.get(Calendar.DATE) + " VS " +
cal2.get(Calendar.YEAR) + "" + cal2.get(Calendar.MONTH) + "" + cal2.get(Calendar.DATE));
return (cal1.get(Calendar.YEAR) == cal2.get(Calendar.YEAR) && cal1.get(Calendar.MONTH) == cal2.get(Calendar.MONTH) && cal1.get(Calendar.DATE) == cal2.get(Calendar.DATE));
}
public boolean isStaticText() {
return isStaticText;
}
}
我是否应该在适配器上添加Fragment？
答案 0 :(得分：0)
，
@Override
public int getItemPosition(Object object) {
return POSITION_NONE;
}