我正在构建寻呼机 Recyclerview，其中每个页面都有一个计时器。几秒钟后，我需要根据计时器值更改页面。但问题是，每当我切换到其他页面时，前一个计时器都会再次启动。我做了所有事情，我在 onCreateViewHolder 中创建了计时器，我在 onBindViewHolder 中创建了计时器，就像每个人都说的那样，但没有任何效果。请帮我解决这个问题。下面是我的代码。
public class GamePlayAdapter extends RecyclerView.Adapter<BaseViewHolder> {
private List<Question> questionList;
private GamePlayHelper gamePlayHelper;
private static final int ITEM_TYPE1 = 1;
private static final int ITEM_TYPE2 = 2;
private Context context;
GamePlayAdapter(List<Question> questionList, GamePlayHelper gamePlayHelper, Context context) {
this.questionList = questionList;
this.gamePlayHelper = gamePlayHelper;
this.context = context;
}
@Override
public int getItemViewType(int position) {
if (questionList.get(position).getMediaExt().equals("")) {
return ITEM_TYPE1;
} else {
return ITEM_TYPE2;
}
}
@NotNull
@Override
public BaseViewHolder onCreateViewHolder(@NotNull ViewGroup parent, int viewType) {
if (viewType == ITEM_TYPE1) {
GamePlayItem1Binding gamePlayItemBinding = GamePlayItem1Binding.inflate(LayoutInflater.from(parent.getContext()), parent, false);
return new GamePlayItem1VH(gamePlayItemBinding);
} else {
GamePlayItem2Binding gamePlayItem2Binding = GamePlayItem2Binding.inflate(LayoutInflater.from(parent.getContext()), parent, false);
GamePlayItem2VH gamePlayItem2VH = new GamePlayItem2VH(gamePlayItem2Binding);
createTimer(gamePlayItem2VH);
return gamePlayItem2VH;
}
}
private void createTimer(BaseViewHolder viewHolder) {
if (viewHolder instanceof GamePlayItem1VH) {
if (((GamePlayItem1VH) viewHolder).countDownTimerUtils != null)
((GamePlayItem1VH) viewHolder).countDownTimerUtils.cancel();
((GamePlayItem1VH) viewHolder).countDownTimerUtils = new CountDownTimerUtils(10000, 1000, CountDownTimerUtils.TIMER_TYPE.SECONDS) {
@Override
public void onTimerTick(String timerValue) {
Timber.d(timerValue);
((GamePlayItem1VH) viewHolder).updateTimeValue(timerValue);
}
@Override
public void onTimerFinish() {
Timber.d("Finish");
((GamePlayItem1VH) viewHolder).updateScreen();
((GamePlayItem1VH) viewHolder).countDownTimerUtils.cancel();
}
};
((GamePlayItem1VH) viewHolder).countDownTimerUtils.start();
} else if (viewHolder instanceof GamePlayItem2VH) {
/* if (((GamePlayItem2VH) viewHolder).countDownTimerUtils != null)
((GamePlayItem2VH) viewHolder).countDownTimerUtils.cancel();*/
((GamePlayItem2VH) viewHolder).countDownTimerUtils = new CountDownTimerUtils(10000, 1000, CountDownTimerUtils.TIMER_TYPE.SECONDS) {
@Override
public void onTimerTick(String timerValue) {
// Timber.d(timerValue);
Log.d("GamePlay", timerValue);
((GamePlayItem2VH) viewHolder).updateTimeValue(timerValue);
}
@Override
public void onTimerFinish() {
//Timber.d("Finish");
Log.d("GamePlay", "Finish");
((GamePlayItem2VH) viewHolder).updateScreen();
// ((GamePlayItem2VH) viewHolder).countDownTimerUtils.cancel();
}
};
((GamePlayItem2VH) viewHolder).countDownTimerUtils.start();
}
}
@Override
public void onBindViewHolder(@NonNull BaseViewHolder holder, int position) {
holder.onBind(position);
}
@Override
public int getItemCount() {
return questionList.size();
}
class GamePlayItem1VH extends BaseViewHolder {
private GamePlayItem1Binding binding;
private int currentPosition = 0;
private CountDownTimerUtils countDownTimerUtils;
GamePlayItem1VH(GamePlayItem1Binding binding) {
super(binding.getRoot());
this.binding = binding;
GamePlayItem1ViewModel gamePlayItem1ViewModel = new GamePlayItem1ViewModel();
binding.setViewModel(gamePlayItem1ViewModel);
binding.executePendingBindings();
binding.gameplayItem1QuestionProgress.setMax(questionList.size());
}
@Override
public void onBind(int position) {
currentPosition = position;
startTimer();
updateProgress(position);
binding.gameplayItem1NoOfQues.setText(String.format("%s/%s", position + 1, questionList.size()));
binding.gameplayItem1QuestionTitle.setText(questionList.get(position).getQuestionText());
binding.gameplayItemOptionBtn1.setText(questionList.get(position).getOptions().get(0).getOptionText());
binding.gameplayItemOptionBtn2.setText(questionList.get(position).getOptions().get(1).getOptionText());
binding.gameplayItemOptionBtn1.setOnClickListener(v ->
{
binding.gameplayItemOptionBtn1.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItemOptionBtn1.setBackgroundResource(R.drawable.button_question_selected_correct);
onItemClick(position);
});
binding.gameplayItemOptionBtn2.setOnClickListener(v ->
{
binding.gameplayItemOptionBtn2.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItemOptionBtn2.setBackgroundResource(R.drawable.button_question_selected_wrong);
onItemClick(position);
});
binding.gameplayItemOptionBtn3.setOnClickListener(v ->
{
binding.gameplayItemOptionBtn3.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItemOptionBtn3.setBackgroundResource(R.drawable.button_question_selected_correct);
onItemClick(position);
});
binding.gameplayItemOptionBtn4.setOnClickListener(v ->
{
binding.gameplayItemOptionBtn4.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItemOptionBtn4.setBackgroundResource(R.drawable.button_question_selected_wrong);
onItemClick(position);
});
}
private void startTimer() {
countDownTimerUtils = new CountDownTimerUtils(10000, 1000, CountDownTimerUtils.TIMER_TYPE.SECONDS) {
@Override
public void onTimerFinish() {
updateScreen();
cancel();
}
@Override
public void onTimerTick(String timerValue) {
updateTimeValue(timerValue);
}
};
countDownTimerUtils.start();
}
private void updateProgress(int position) {
binding.gameplayItem1QuestionProgress.setProgress(position + 1);
}
private void updateTimeValue(String timerValue) {
binding.gameplayItem1TimerTxt.setText(timerValue);
}
private void updateScreen() {
countDownTimerUtils.cancel();
onItemClick(currentPosition);
}
void onItemClick(int pagePosition) {
new Handler().postDelayed(() ->
gamePlayHelper.onQuestionItemSelected(pagePosition + 1), 500);
}
}
class GamePlayItem2VH extends BaseViewHolder {
GamePlayItem2Binding binding;
GamePlayItem2ViewModel gamePlayItem2ViewModel;
private int currentPosition = 0;
private CountDownTimerUtils countDownTimerUtils;
GamePlayItem2VH(GamePlayItem2Binding binding) {
super(binding.getRoot());
this.binding = binding;
gamePlayItem2ViewModel = new GamePlayItem2ViewModel();
binding.setViewModel(gamePlayItem2ViewModel);
binding.executePendingBindings();
binding.gameplayItem2QuestionProgress.setMax(questionList.size());
}
@Override
public void onBind(int position) {
// startTimer();
updateProgress(position);
currentPosition = position;
binding.gameplayItem2NoOfQues.setText(String.format("%s/%s", position + 1, questionList.size()));
binding.gameplayItem2QuestionTitle.setText(questionList.get(position).getQuestionText());
binding.gameplayItem2OptionBtn1.setText(questionList.get(position).getOptions().get(0).getOptionText());
binding.gameplayItem2OptionBtn2.setText(questionList.get(position).getOptions().get(1).getOptionText());
BindingUtils.setImageUrl(binding.gameplayItem2QuestionImg, questionList.get(position).getMediaURL());
binding.gameplayItem2OptionBtn1.setOnClickListener(v ->
{
binding.gameplayItem2OptionBtn1.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItem2OptionBtn1.setBackgroundResource(R.drawable.button_question_selected_correct);
onItemClick(position);
});
binding.gameplayItem2OptionBtn2.setOnClickListener(v ->
{
binding.gameplayItem2OptionBtn2.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItem2OptionBtn2.setBackgroundResource(R.drawable.button_question_selected_wrong);
onItemClick(position);
});
binding.gameplayItem2OptionBtn3.setOnClickListener(v ->
{
binding.gameplayItem2OptionBtn3.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItem2OptionBtn3.setBackgroundResource(R.drawable.button_question_selected_correct);
onItemClick(position);
});
binding.gameplayItem2OptionBtn4.setOnClickListener(v ->
{
binding.gameplayItem2OptionBtn4.setTextColor(context.getResources().getColor(R.color.white));
binding.gameplayItem2OptionBtn4.setBackgroundResource(R.drawable.button_question_selected_wrong);
onItemClick(position);
});
}
private void startTimer() {
countDownTimerUtils = new CountDownTimerUtils(10000, 1000, CountDownTimerUtils.TIMER_TYPE.SECONDS) {
@Override
public void onTimerFinish() {
updateScreen();
cancel();
Log.d("GamePlay", "finish");
}
@Override
public void onTimerTick(String timerValue) {
updateTimeValue(timerValue);
Log.d("GamePlay", timerValue);
}
};
countDownTimerUtils.start();
}
private void updateProgress(int position) {
binding.gameplayItem2QuestionProgress.setProgress(position + 1);
}
private void updateScreen() {
// countDownTimerUtils.cancel();
// countDownTimerUtils = null;
gamePlayHelper.onQuestionItemSelected(currentPosition + 1);
}
private void updateTimeValue(String timerValue) {
binding.gameplayItem2TimerTxt.setText(timerValue);
}
void onItemClick(int pagePosition) {
// countDownTimerUtils.cancel();
// countDownTimerUtils = null;
new Handler().postDelayed(() ->
gamePlayHelper.onQuestionItemSelected(pagePosition + 1), 500);
}
}
void updateDataSet(int position) {
notifyDataSetChanged();
}
}