Question

我在Android上做了一些烹饪应用程序，里面有任何测验，对于我能够从文本到文本字段获取文本的问题，但对于答案我不知道如何将其显示到收音机按钮。我是android的新手，请帮助我，并提前感谢你。

cuisine1.xml

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content" >

    <ImageView
        android:id="@+id/imageView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="30dp"
        android:layout_marginTop="20dp"
        android:src="@drawable/papeda128" />

    <TextView
        android:id="@+id/textView1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="40dp"
        android:layout_marginTop="40dp"
        android:text="Papeda"
        android:textColor="#000000"
        android:textSize="30dp" />
</LinearLayout>

<ScrollView
    android:id="@+id/scrollView1"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_marginTop="30dp" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginLeft="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginTop="30dp"
            android:text="Question"
            android:textColor="#000000"
            android:textSize="20dp" />

    </LinearLayout>
</ScrollView>

<RadioGroup
    android:id="@+id/radioGroup1"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content" >

    <RadioButton
        android:id="@+id/radio0"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="20dp"
        android:checked="true"
        android:text="Answer 1" />

    <RadioButton
        android:id="@+id/radio1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Answer 2" />

    <RadioButton
        android:id="@+id/radio2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Answer 3" />
</RadioGroup>

</LinearLayout>

cuisine1.java

package com.culinary;

import java.util.ArrayList;
import java.util.Collections;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
import android.view.View;
import android.widget.RadioGroup;
import android.widget.TextView;


public class cuisine1 extends Activity {

 TextView papquest;
 private int i=0;;
 question q=new question();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.cuisine1);

    papquest=(TextView)findViewById(R.id.textView2);
    String dt=q.showquestionpapeda(i);
    String[] quest=dt.split("/");
    papquest.setText(quest[0],null);


    findViewById(R.id.radio0).setOnClickListener(mClickListener);
    findViewById(R.id.radio1).setOnClickListener(mClickListener);
    findViewById(R.id.radio2).setOnClickListener(mClickListener);

}   

    RadioGroup.OnClickListener mClickListener = new RadioGroup.OnClickListener(){

        @Override
        public void onClick(View v) {
            // TODO Auto-generated method stub
            i+=1;

             String dt=q.showquestionpapeda(i);
             String[] quest=dt.split("/");
             papquest.setText(quest[0],null);

            }

    };


    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
    }

}

question.java

package com.culinary;

class question {
    String[] papeda={
            "Question 1 ?/Answer1,Answer2,Answer3",
            "Question 2 ?/Answer1,Answer2,Answer3",
            "Question 3 ?/Answer1,Answer2,Answer3",
            "Question 4 ?/Answer1,Answer2,Answer3",

    };

public void question(){

    }

public String showquestionpapeda(int i){
        String question;
        question=papeda[i];
        return question;
    }
}

Answer 1

您可以执行以下操作：

//Get your string   
String dt=q.showquestionpapeda(i);
// First split on basis of '/'
String [] firstSplit = dt.split("/");
// Get the second element consisting of "Answer1,Answer2,Answer3" string and split based on ","
String [] secondSplit = firstSplit[1].split(",");

//get the radio group and set the text of first second and third radio button
RadioGroup rbtnGrp = (RadioGroup)findViewById(R.id.radioGroup1);
for (int i = 0; i < rbtnGrp.getChildCount(); i++) {
    // setting the text on the three children with three strings in the array
    ((RadioButton) rbtnGrp.getChildAt(i)).setText(secondSplit[i]); 
}

您还可以单独为每个循环设置文本外部循环。希望这会有所帮助。

Answer 2

您必须执行以下操作：

// this get the number of radioButtons inside the radioGroup
int count = radioGroup.getChildCount();
// this is what you are doing to split your quesitons 
 String[] quest=dt.split("/");

//here we loop through all the child radioButtons 
    for (int i=0;i<count;i++) {
//get the radio button at the index i
        View o = radioGroup.getChildAt(i);
//if the view is a RadioButton 
        if (o instanceof RadioButton) {
            o.setText(quest[i]);
        }
    }

请给我一些回馈

希望有所帮助。

如何从数组中获取文本到radiobutton？

2 个答案: