我要创建此布局，为此的最佳解决方案是什么
我通过为选项创建5个数组4个数组并为问题创建1个数组并单击来完成此操作，现在我想在选项末尾显示箭头，问题是我现在不知道如何在我的选项中识别正确的选项情况下，如我之前所说，我使用5个数组创建布局，但我认为这样做是不正确的方式
我以某种方式设法在单击的图像上显示勾号，现在我很困惑如何确定正确的答案
我正在展示我的类适配器和主要的Java类。
数据显示在recyclerview及其硬代码数据中。
这是我完整的适配器类
package com.example.smtrader.adiedtrade.Adapter;
import android.content.Context;
import android.support.annotation.NonNull;
import android.support.v7.widget.RecyclerView;
import android.text.SpannableStringBuilder;
import android.text.style.ImageSpan;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.RadioGroup;
import android.widget.TextView;
import com.example.smtrader.adiedtrade.Acitivities.NewQuizActivity;
import com.example.smtrader.adiedtrade.Interface.ItemClickListener;
import com.example.smtrader.adiedtrade.R;
public class NewQuizRecyclerAdapter extends
RecyclerView.Adapter<NewQuizRecyclerAdapter.ImageVIewHolder> {
private String[] question;
private String[] questionNumber;
private String[] option1;
private String[] option2;
private String[] option3;
private String[] option4;
private Context context;
private String[][] count;
private boolean chooseOption = false;
private boolean selectedOption1 = false;
private boolean selectedOption2 = false;
private boolean selectedOption3 = false;
private boolean selectedOption4 = false;
private int[] answers = new int[getItemCount()];
public NewQuizRecyclerAdapter(String[] question, String[] option1,
String[] option2,
String[] option3, String[] option4) {
this.question = question;
this.questionNumber = questionNumber;
this.option1 = option1;
this.option2 = option2;
this.option3 = option3;
this.option4 = option4;
}
@NonNull
@Override
public ImageVIewHolder onCreateViewHolder(ViewGroup viewGroup, int i) {
View view =
LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.item_quiz,
viewGroup, false);
context = viewGroup.getContext();
NewQuizRecyclerAdapter.ImageVIewHolder imageViewHolder = new
NewQuizRecyclerAdapter.ImageVIewHolder(view);
return imageViewHolder;
}
@Override
public void onBindViewHolder(final ImageVIewHolder imageVIewHolder, final
int i) {
// imageVIewHolder.questionnumber.setText(question[i]);
imageVIewHolder.question.setText(question[i]);
imageVIewHolder.optiontxt1.setText(option1[i]);
imageVIewHolder.optiontxt2.setText(option2[i]);
imageVIewHolder.optiontxt3.setText(option3[i]);
imageVIewHolder.optiontxt4.setText(option4[i]);
if (answers[i] == 1) {
SpannableStringBuilder builder = new SpannableStringBuilder();
builder.append(imageVIewHolder.optiontxt1.getText()).append(" ",
new ImageSpan(context, R.drawable.check), 0);
imageVIewHolder.optiontxt1.setText(builder);
imageVIewHolder.optiontxt4.setText(option4[i]);
imageVIewHolder.optiontxt3.setText(option3[i]);
imageVIewHolder.optiontxt2.setText(option2[i]);
selectedOption1 = true;
selectedOption2 = false;
selectedOption3 = false;
selectedOption4 = false;
} else {
//imageVIewHolder.optiontxt1.setCompoundDrawablesWithIntrinsicBounds
(R.drawable.uncheck, 0, 0, 0);
}
if (answers[i] == 2) {
SpannableStringBuilder builder = new SpannableStringBuilder();
builder.append(imageVIewHolder.optiontxt2.getText()).append(" ",
new ImageSpan(context, R.drawable.check), 0);
imageVIewHolder.optiontxt2.setText(builder);
imageVIewHolder.optiontxt1.setText(option1[i]);
imageVIewHolder.optiontxt3.setText(option3[i]);
imageVIewHolder.optiontxt4.setText(option4[i]);
selectedOption1 = false;
selectedOption2 = true;
selectedOption3 = false;
selectedOption4 = false;
} else {
//imageVIewHolder.optiontxt2.setCompoundDrawablesWithIntrinsicBounds
(R.drawable.uncheck, 0, 0, 0);
}
if (answers[i] == 3) {
SpannableStringBuilder builder = new SpannableStringBuilder();
builder.append(imageVIewHolder.optiontxt3.getText()).append(" ",
new ImageSpan(context, R.drawable.check), 0);
imageVIewHolder.optiontxt3.setText(builder);
imageVIewHolder.optiontxt1.setText(option1[i]);
imageVIewHolder.optiontxt2.setText(option2[i]);
imageVIewHolder.optiontxt4.setText(option4[i]);
selectedOption1 = false;
selectedOption2 = false;
selectedOption3 = true;
selectedOption4 = false;
} else {
// imageVIewHolder.optiontxt3.setCompoundDrawablesWithIntrinsicBounds
(R.drawable.uncheck, 0, 0, 0);
}
if (answers[i] == 4) {
SpannableStringBuilder builder = new SpannableStringBuilder();
builder.append(imageVIewHolder.optiontxt4.getText()).append(" ",
new ImageSpan(context, R.drawable.check), 0);
imageVIewHolder.optiontxt4.setText(builder);
imageVIewHolder.optiontxt1.setText(option1[i]);
imageVIewHolder.optiontxt3.setText(option3[i]);
imageVIewHolder.optiontxt2.setText(option2[i]);
selectedOption1 = false;
selectedOption2 = false;
selectedOption3 = false;
selectedOption4 = true;
} else {
//imageVIewHolder.optiontxt4.setCompoundDrawablesWithIntrinsicBounds
(R.drawable.uncheck, 0, 0, 0);
}
imageVIewHolder.optiontxt1.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View view) {
answers[i] = 1;
notifyItemChanged(i);
}
});
imageVIewHolder.optiontxt2.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View view) {
answers[i] = 2;
notifyItemChanged(i);
}
});
imageVIewHolder.optiontxt3.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View view) {
answers[i] = 3;
notifyItemChanged(i);
}
});
imageVIewHolder.optiontxt4.setOnClickListener(new
View.OnClickListener() {
@Override
public void onClick(View view) {
answers[i] = 4;
notifyItemChanged(i);
}
});
Log.e("selectoptions", "onBindViewHolder: " + selectedOption1 +
selectedOption2 + selectedOption3 + selectedOption4);
}
@Override
public int getItemCount() {
return NewQuizActivity.question.length;
}
public class ImageVIewHolder extends RecyclerView.ViewHolder {
TextView question, questionnumber, optiontxt1, optiontxt2, optiontxt3,
optiontxt4;
RadioGroup radio;
ItemClickListener itemClickListener;
public ImageVIewHolder(final View itemView) {
super(itemView);
question = itemView.findViewById(R.id.question);
radio = itemView.findViewById(R.id.radio);
optiontxt1 = itemView.findViewById(R.id.option1);
optiontxt2 = itemView.findViewById(R.id.option2);
optiontxt3 = itemView.findViewById(R.id.option3);
optiontxt4 = itemView.findViewById(R.id.option4);
//questionnumber = itemView.findViewById(R.id.questionNumber);
}
}
}
and this is my main java class from where i am inflating items in
recyclerview
package com.example.smtrader.adiedtrade.Acitivities;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import com.example.smtrader.adiedtrade.Adapter.NewQuizRecyclerAdapter;
import com.example.smtrader.adiedtrade.R;
public class NewQuizActivity extends AppCompatActivity {
private RecyclerView quizRecyclerView;
private NewQuizRecyclerAdapter mQuizRecyclerAdapter;
//public static String[] questionNumber = {"Question #1", "Question #2",
"Question #3", "Question #4", "Question #5", "Question #6", "Question #7",
"Question #8"};
public static String[] question = {"1. An underlying contract is trading
at a price of 75. If the underlying price changes, which option price will
change the most? \n" +
"A) 1-month 75 call\n" +
"B) 1-month 80 call\n", "2. In the video, Reda states the one and
only one reason why liquidity wouldn't matter with our setup\n",
"3. Why use Futures\n",
"4. Covered Options\n" +
"Let's say a trader bought 100 shares of XYZ stock at $56
per share and sold a 58 call against it for $2. At what price would he
break even on the trade (not including commissions and fees)?\n",
"5. Current opt value: 1.24\n" +
"Delta: 72\n" +
"Underlying price change: +.18\n" +
"\n" +
"To the nearest .01, estimate the option's new value if
the underlying price changes by the given amount.\n",
"6. What time frame and what usually happens in a Short Term Delta
Rush?\n",
"7. Original Premium = 1.40 \n" +
"Delta = .16 \n" +
"Gamma = .14 \n" +
"Theta = -.03 \n" +
"Vega = .01\n" +
"Given this info, if the price of underlying stock
increases by $2 tomorrow, the new premium would be $__?\n",
"8. You have a short put position with a 74 strike. At which of
these prices would you most likely be assigned at expiration? Select all
that apply.\n"};
private String[] option1 = {"A) Delta",
"A) Telecom/Materials/Real Estate/Utilities/Energy/Cons_
Staples/lndustrials/Cons. Discret_/Health Care/Technology Technology",
"A) Technology: 20.84%\n Health Care: 14.90%\n Financials: 1371%
Cons.\n Discret: 1016%\n Telecom: 9.93%",
"A) 56 - 2=$54",
"A) 56 - 2 = $54",
"A) 5 Day:15 min. volume pours in and we get a fast moving options
price per contact",
"A) 1-month 75 call",
"A) We are always playing closet OTM call/put and we,re always
playing 500 of the biggest stocks in the stock market."};
private String[] option2 = {"B) Covered Call",
"B) Technology: 20.84%\n" + " Health Care: 14.90%\n " + "
Financials: 1371% Cons.\n " + " Discret: 1016%\n " + " Telecom:
9.93%",
"B) Telecom/Materials/Real Estate/Utilities/Energy/Cons_
Staples/lndustrials/Cons. Discret_/Health Care/Technology Technology",
"B) 10.25 + (.60 * .40)=10.49",
"B) 1.24 + (-.15*13.68)=49.35",
"B) 1.24 + (-.15*13.68)=49.35",
"B) $1.86\n" +
"if the underlying stock increased by $2,the new premium
would be $1.86($1.40+.16+.30)." +
"Delta is .16 for the first doller move, and the new delta
is .30 for the second dollar move(.16 + .14)." +
"Theta ins't a factor since no tiem has passed, and vega
ins't a factor because there's no change in implied volatility",
"B) $1.86\n" +
"if the underlying stock increased by $2,the new premium
would be $1.86($1.40+.16+.30)." +
"Delta is .16 for the first doller move, and the new delta
is .30 for the second dollar move(.16 + .14)." +
"Theta ins't a factor since no tiem has passed, and vega
ins't a factor because there's no change in implied volatility"};
private String[] option3 = {"C) We are always playing closest OTM call/put
and we're always playing 500 of the biggest stocks in the stock market.",
"C) We are always playing closest OTM call/put and we're always
playing 500 of the biggest stocks in the stock market.",
"C) You should use it in conjuction with trading a compoment of
that future. For ex: Boeing is a component of the Dow jones. you can use
the Dow jones future to help you determine predicted price range for
Boeing",
"C) 24.60 + (-44*-5.20)=26.89",
"C) 24.60 + (-44*-5.20)=26.89",
"C) 24.60 + (-44*-5.20)=26.89",
"C) Delta",
"C) $73,$73.75,$74\n when the price is lower than the strike by
even $0.01,the put option " +
"in in the money and will likely be assigned. When the
price is at or very near the strike," +
"the option is at the mon ey and has a strong possibility
of being assigned. when the price is above the strike," +
"the call option is out of the money and will almost
certainly expire worthless."};
private String[] option4 = {"D) I-month 75 call",
"D) Covered call",
"D) We are always playing closest OTM call/put and we're always
playing 500 of the biggest stocks in the stock market.",
"D) 1.24 + (-15*13.68)=49.35",
"D) 10.25 + (.60*.40)=10.49",
"D) 10.25 + (.60*.40)=10.49",
"C) $73,$73.75,$74\n when the price is lower than the strike by
even $0.01,the put option " +
"in in the money and will likely be assigned. When the
price is at or very near the strike," +
"the option is at the mon ey and has a strong possibility
of being assigned. when the price is above the strike," +
"the call option is out of the money and will almost
certainly expire worthless.",
"D) 1-month 75 call"};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_new_quiz);
init();
}
private void init() {
quizRecyclerView = findViewById(R.id.quizRecyclerView);
quizRecyclerView.setLayoutManager(new LinearLayoutManager(this));
mQuizRecyclerAdapter = new NewQuizRecyclerAdapter( question, option1,
option2, option3, option4);
quizRecyclerView.setAdapter(mQuizRecyclerAdapter);
}
}