Android 自定义日历+日历标签

xml: <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <LinearLayout android:layout_width="300dp" android:layout_height="wrap_content" android:gravity="center" android:layout_marginBottom="10dp" android:orientation="horizontal"> <ImageView android:id="@+id/beforeData1" android:layout_width="30dp" android:layout_height="30dp" android:layout_marginLeft="10dp" android:padding="2dp" android:src="@mipmap/l_arrow" /> <TextView android:id="@+id/time1" android:layout_width="120dp" android:layout_height="30dp" android:background="@drawable/bg_edit_3cir" android:gravity="center" android:text="2022年10月" android:textColor="#ff040000" android:textSize="@dimen/text_18" /> <ImageView android:id="@+id/nextData1" android:layout_width="30dp" android:layout_height="30dp" android:padding="2dp" android:src="@mipmap/r_arrow" /> </LinearLayout> <LinearLayout android:id="@+id/lin_date_layout" android:layout_width="300dp" android:layout_height="wrap_content" android:gravity="center_vertical" android:orientation="horizontal"> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="一" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="二" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="三" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="四" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="五" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="六" android:textColor="@color/black" android:textSize="16sp" /> <TextView android:layout_width="0dp" android:layout_height="wrap_content" android:layout_weight="1" android:gravity="center" android:text="日" android:textColor="@color/black" android:textSize="16sp" /> </LinearLayout> <androidx.recyclerview.widget.RecyclerView android:id="@+id/rv_cal" android:layout_width="300dp" android:layout_height="wrap_content" android:layout_marginBottom="70dp" android:nestedScrollingEnabled="true" android:orientation="vertical" android:scrollbars="vertical" app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" /> </LinearLayout> java: private int year; private int month; private List<DayInfo> dayInfos = new ArrayList<>(); private CalenderDateAdapter myAttendanceDateAdapter; private void setupDate() { Calendar calendar = Calendar.getInstance(); year = calendar.get(Calendar.YEAR); month = calendar.get(Calendar.MONTH) + 1; TextView time1 = findViewById(R.id.time1); ImageView beforeView1 = findViewById(R.id.beforeData1); ImageView nextDate1 = findViewById(R.id.nextData1); RecyclerView rv_cal = findViewById(R.id.rv_cal); myAttendanceDateAdapter = new CalenderDateAdapter(context, dayInfos); GridLayoutManager gridLayoutManager = new GridLayoutManager(this, 7); rv_cal.setLayoutManager(gridLayoutManager); rv_cal.setAdapter(myAttendanceDateAdapter); initDate(); beforeView1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (month == 1) { month = 12; year--; } else { month--; } time1.setText(year + "年" + month + "月"); initDate(); } }); nextDate1.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { if (month == 12) { month = 1; year++; } else { month++; } time1.setText(year + "年" + month + "月"); initDate(); } }); } private void initDate() { int weekDay = DateUtils.getWeekDay(year + "-" + month + "-1"); int totalDays = DateUtils.getMonthDays(year, month); dayInfos.clear(); for (int i = 0; i < weekDay - 1; i++) { dayInfos.add(null); } for (int i = 0; i < totalDays; i++) { DayInfo dayInfo = new DayInfo(); dayInfo.setDay((i + 1) + ""); dayInfo.setTime(year + "-" + month + "-" + (i + 1)); if (i % 4 == 0) { List<String> tags = new ArrayList<>(); tags.add("1"); if (i % 6 == 0) { tags.add("2"); } if (i % 8 == 0) { tags.add("3"); } dayInfo.setTags(tags); } dayInfos.add(dayInfo); } if (m