Использование бесконечного переработки в качестве календаря ⇐ Android

[Anonymous]

Я в настоящее время новичок в разработке Android, и я нахожусь в процессе создания своего первого приложения. Я застрял на определенном хитром бите, в котором я пытаюсь реализовать и бесконечный вид переработчика. Есть две вещи, которые действительно меня удерживают. Во -первых, не так много документации об использовании бесконечного представления переработчика без базы данных (я планирую, но опять же не сейчас) и не зная, где/как сделать его бесконечным. Recyclerview, который я реализовал, уже работает, мне просто нужно, чтобы он загружался бесконечно. Единственные примеры, которые я мог бы найти, по сути, потребовал, чтобы я использовал базу данных, или для создания одного гигантского метода в методе Oncreate. Снова я также попытался реализовать свой собственный SetonScrollListener в домашнем классе, но, увы, я не смог его работать. В идеале я хотел бы сохранить слушателя на прокрутке в переработке, так как я, вероятно, повторно использую его позже в других аспектах приложения. Спасибо в Advanced. < /P>
Home Class < /p>
public class Home extends AppCompatActivity implements AdapterView.OnItemSelectedListener {

private static final String TAG = "Home Class" ;

//Recycler View Variables and myCalendarClass Variables
private myCalendarClass myCalendarObj;
private int weeksInView = 1; //will need to make this update dynamically based on when a user toggles the view
private ArrayList calendarArrayList = new ArrayList();
private ArrayList iconList = new ArrayList();
private ArrayList eventCounterList = new ArrayList();

//recycler view dynamic loading variables
private RecyclerView calendarRecyclerView;
private boolean isLoading = true;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);

initializeNavMenuButtons();
setViewSpinner();

this.myCalendarObj = new myCalendarClass();
setAllCalendarFields(this.myCalendarObj);

getImagesAndEventCounters();

//Example of the order to call the methods when a user switches the view
//setCalendarItrToCurrentSunday();
//setCalendarArrayList();
//getImagesAndEventCounters();
}

//Recycler view code

//gets images and events to feed into the recycler view
private void getImagesAndEventCounters() {
Log.d(TAG, "initImageBitMaps: called");

ArrayList weekView = getCalendarArrayList();

int daysInView = this.weeksInView * 7;

System.out.println("Days in view " + daysInView + " Weeks In View " + this.weeksInView);

for (int i = 0; i < daysInView; i++) {

calendarArrayList.add(weekView.get(i));

iconList.add(R.id.fitnessIcon);
eventCounterList.add(R.string.XEventsDefault);

iconList.add(R.id.educationIcon);
eventCounterList.add(R.string.XEventsDefault);

iconList.add(R.id.workIcon);
eventCounterList.add(R.string.XEventsDefault);

iconList.add(R.id.personalIcon);
eventCounterList.add(R.string.XEventsDefault);

initRecyclerView();
}

}

//passes data to the parent recycler view and sets the view
private void initRecyclerView() {

//For one recyclerView
this.parentLayoutManager = new GridLayoutManager(this, 7);
//GridLayoutManager layoutManager = parentLayoutManager;
RecyclerView recyclerView = findViewById(R.id.calendarRecyclerView);
recyclerView.setLayoutManager(parentLayoutManager);
RecyclerViewAdapter adapter = new RecyclerViewAdapter(this,iconList,eventCounterList,weeksInView,calendarArrayList);
recyclerView.setAdapter(adapter);

//ViewSpinner(Drop Down Menu)
private void setViewSpinner(){
Spinner viewSpinner = findViewById(R.id.ViewDropDownButton);
ArrayAdapter adapter = ArrayAdapter.createFromResource(this,R.array.Calendar_View_List, android.R.layout.simple_spinner_item);

viewSpinner.setAdapter(adapter);
viewSpinner.setOnItemSelectedListener(this);

}

@Override
public void onItemSelected(AdapterView parent, View view, int position, long id) {
String text = parent.getItemAtPosition(position).toString();

myCalendarClass myCalendarObj;

if(text.equals("Week View")){
myCalendarObj = new myCalendarClass("Week View");
setAllCalendarFields(myCalendarObj);
getImagesAndEventCounters();
this.myCalendarObj = myCalendarObj;
}
else if (text.equals("Biweekly View")){
myCalendarObj = new myCalendarClass("Biweekly View");
setAllCalendarFields(myCalendarObj);
getImagesAndEventCounters();
this.myCalendarObj = myCalendarObj;
}
else if (text.equals("Month View")){
myCalendarObj = new myCalendarClass("Month View");
setAllCalendarFields(myCalendarObj);
getImagesAndEventCounters();
this.myCalendarObj = myCalendarObj;
}

}

@Override
public void onNothingSelected(AdapterView parent) {

}

//setters
//sets all the local variables needed from myCalendarClass
private void setAllCalendarFields(myCalendarClass c){
this.myCalendarObj = c;
this.calendarArrayList = c.getCalendarArrayList();
this.weeksInView = c.getWeeksInView();
}

//getters
//returns the calendar arraylist
private ArrayList getCalendarArrayList(){
return this.calendarArrayList;
}
< /code>
recycler adapter < /p>
public class RecyclerViewAdapter extends RecyclerView.Adapter {

private static final String TAG = "RecyclerViewAdapter";

//variables for creating the recyclerView cards
private ArrayList iconList;
private ArrayList eventCounterList;
private Context mContext;
private int itemCount;
private ArrayList calendarArrayList;
private ArrayList dayStr;
private ArrayList dayNum;

public RecyclerViewAdapter(Context context, ArrayList imageList, ArrayList eventArray, int weeksInView,ArrayList calendarArrayList){
this.iconList = imageList;
this.eventCounterList = eventArray;
this.mContext = context;
this.itemCount = weeksInView*7;
this.calendarArrayList = calendarArrayList;
setDayStrNDayNum();

}

@NonNull
@Override
//this is the method that actually inflates each individual layout
public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
Log.d(TAG, "onCreateViewHolder: called.");

View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_listitem,parent,false);

return new ViewHolder(view);
}

@Override
//this is where we bind the data to each individual list items
//essentially all the data and stuff is actually attached in this method to each indiviual list item
public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
Log.d(TAG, "onBindViewHolder: called");

holder.fitnessIcon.getDrawable();
holder.educationIcon.getDrawable();
holder.personalIcon.getDrawable();
holder.workIcon.getDrawable();

holder.fitnessEventCounter.setText(eventCounterList.get(position));
holder.educationEventCounter.setText(eventCounterList.get(position));
holder.workEventCounter.setText(eventCounterList.get(position));
holder.personalEventCounter.setText(eventCounterList.get(position));

holder.dayString.setText(dayStr.get(position));
holder.dayNum.setText(dayNum.get(position));

}

//returns the amount of items we wish to include in the recycler view (not the individual items within a card layout
// but instead how many cards we wish to include...probably
@Override
public int getItemCount() {
return itemCount;
}

public class ViewHolder extends RecyclerView.ViewHolder{

ImageView fitnessIcon;
ImageView educationIcon;
ImageView workIcon;
ImageView personalIcon;

TextView dayString;
TextView dayNum;
TextView fitnessEventCounter;
TextView educationEventCounter;
TextView workEventCounter;
TextView personalEventCounter;

public ViewHolder(View itemView){
super(itemView);

//icons within the layout_listitem
fitnessIcon = itemView.findViewById(R.id.fitnessIcon);
educationIcon = itemView.findViewById(R.id.educationIcon);
workIcon = itemView.findViewById(R.id.workIcon);
personalIcon = itemView.findViewById(R.id.personalIcon);

//text fields within the layout_listitem
dayNum = itemView.findViewById(R.id.dayNum);
dayString = itemView.findViewById(R.id.dayStr);
fitnessEventCounter = itemView.findViewById(R.id.fitnessEventCounter);
educationEventCounter = itemView.findViewById(R.id.educationEventCounter);
workEventCounter = itemView.findViewById(R.id.workEventCounter);
personalEventCounter = itemView.findViewById(R.id.personalEventCounter);

}

}

public void setItemCount(int newItemCount){
itemCount = newItemCount;
}

//sets the dayStr arrays and the dayNum array using CalendarArrayList
// to pull the day in the month and the string value(monday,tuesday,etc.)
private void setDayStrNDayNum(){

Iterator itr = this.calendarArrayList.iterator();

ArrayList tempDayNum = new ArrayList();
ArrayList tempDayStr = new ArrayList();

int i = 0;
while(itr.hasNext()){
String dayInMonth = getDayInMonth(calendarArrayList.get(i));
String weekDayToString = weekDayToString(calendarArrayList.get(i));

tempDayNum.add(dayInMonth);
tempDayStr.add(weekDayToString);
i++;
itr.next();
}//while

this.dayNum = tempDayNum;
this.dayStr = tempDayStr;

}

//takes in a Calendar Obj, gets the int, and returns it in a String Format
private String getDayInMonth (Calendar c){
Integer temp = c.get(Calendar.DAY_OF_MONTH);
String answer = Integer.toString(temp);
return answer;
}

//takes in a Calendar Obj, gets the weekday digit from 1 to 7, and returns a String
// 1 being Su for Sunday, 2 Mo for Monday, and etc.
private String weekDayToString (Calendar x){
int temp = x.get(Calendar.DAY_OF_WEEK);

switch(temp){
case 1:
return "Su";

case 2:
return "Mo";

case 3:
return "Tu";

case 4:
return "We";

case 5:
return "Th";

case 6:
return "Fr";

case 7:
return "Sa";

}
return "null";
}//weekDayToString

}


Подробнее здесь: https://stackoverflow.com/questions/606 ... a-calendar