我正在制作一个测验应用程序,其中有四个单选按钮。我想在每次单击"下一步"按钮时更改所有四个选项。我应该使用 2D 数组还是使用任何其他逻辑。请通过编码给出正确的逻辑。
布局文件
爪哇代码
你可以
用黄油刀来做
@BindViews({ R.id.radio1, R.id.radio2, R.id.radio3})
List<RadioButton> radioList;
static final ButterKnife.Action<RadioButton> action = new ButterKnife.Action<RadioButton>() {
@Override public void apply(RadioButton rb, int index) {
//Do your stuff here
}
};
void onNextButton() {
ButterKnife.apply(radioList, action);
}
试试这个模型
布局
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:padding="10dp" >
<RadioGroup
android:id="@+id/radioGroupAnswrs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true" >
<RadioButton
android:id="@+id/radio0"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:checked="true"
android:text="ansOpt1" />
<RadioButton
android:id="@+id/radio1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ansOpt2" />
<RadioButton
android:id="@+id/radio2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ansOpt3" />
<RadioButton
android:id="@+id/radio3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="ansOpt4" />
</RadioGroup>
<Button
android:id="@+id/btnNext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:text="Next" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_above="@+id/radioGroupAnswrs"
android:layout_centerHorizontal="true"
android:layout_marginBottom="30dp"
android:text="Questin"
android:textAppearance="?android:attr/textAppearanceMedium" />
</RelativeLayout>
字符串.xml'
<string name="app_name">app name</string>
<string name="hello_world">Hello world!</string>
<string name="action_settings">Settings</string>
<string-array name="qtns">
<item >questian1</item>
<item >questian2</item>
<item >questian3</item>
<item >questian4</item>
<item >questian5</item>
</string-array>
<string-array name="one_answers">
<item >#Q1opt1#Q1opt2#Q1opt3#Q1opt4</item>
<item >#Q2opt1#Q2opt2#Q2opt3#Q2opt4</item>
<item >#Q3opt1#Q3opt2#Q3opt3#Q3opt4</item>
<item >#Q4opt1#Q4opt2#Q4opt3#Q4opt4</item>
<item >#Q5opt1#Q5opt2#Q5opt3#Q5opt4</item>
</string-array>
波乔类
public class Quiz {
private String question;
private String anwrs[];
public Quiz(String quest, String[] answrs) {
this.question = quest;
this.anwrs = answrs;
}
public String getQuestion(){
return this.question;
}
public String[] getAnsOptions(){
return this.anwrs;
}
}
活动类
public class QuizActivity extends Activity {
TextView tvQstn;
RadioButton rbOp1, rbOp2, rbOp3, rbOp4;
Button btnNext;
ArrayList<Quiz> aryQuiz;
int quesCnt = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.aa_test);
aryQuiz = new ArrayList<Quiz>();
initViews();
setArray();
setQuestion();
btnNext.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setQuestion();
}
});
}
private void initViews() {
tvQstn = (TextView) findViewById(R.id.textView1);
rbOp1 = (RadioButton) findViewById(R.id.radio0);
rbOp2 = (RadioButton) findViewById(R.id.radio1);
rbOp3 = (RadioButton) findViewById(R.id.radio2);
rbOp4 = (RadioButton) findViewById(R.id.radio3);
btnNext = (Button) findViewById(R.id.btnNext);
}
private void setQuestion() {
if (aryQuiz.size() > quesCnt) {
Quiz cQuiz = aryQuiz.get(quesCnt);
tvQstn.setText(cQuiz.getQuestion());
rbOp1.setText(cQuiz.getAnsOptions()[0]);
rbOp2.setText(cQuiz.getAnsOptions()[1]);
rbOp3.setText(cQuiz.getAnsOptions()[2]);
rbOp4.setText(cQuiz.getAnsOptions()[3]);
quesCnt++;
}
}
private void setArray() {
String[] qtns = getResources().getStringArray(R.array.qtns);
String[] ans = getResources().getStringArray(R.array.ans);
for (int i = 0; i < qtns.length; i++) {
Quiz quiz = new Quiz(qtns[i], ans[i].split("#"));
aryQuiz.add(quiz);
}
}
}