Question

我是一个本土的新手编码器，试图为我儿子的第一个生日开发一个测验应用程序（对于家庭成员，当然，不是为了他）。

我面临的问题是将测验的结果显示出来 - 并按分数排序。

当用户通过此测验取得进展时，会收集两个变量：他的名字（String whatName）和他的分数（int currentScore）。

如何在最终问题结束时将这两个放在图表中？最好根据currentScore从最佳到最差对齐。

谢谢！

编辑：我打算使用自定义类：

public class results {
public String endName;
public int endScore;
}

然后在最后一个方法toEndResults中实现它。

public class MainActivity extends Activity {

int currentScore = 0;
ArrayList<results> result = new ArrayList<>();

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    setContentView(R.layout.activity_main);
}

public void toQuiz (View view) {
    EditText name = (EditText) findViewById(R.id.name_set);
    String whatName = name.getText().toString();
    setContentView(R.layout.question);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
}

public void right1 (View view) {
    currentScore++;
    toQuestion2();
}
public void wrong1 (View view) {
    toQuestion2();
}

public void toQuestion2 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question2);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}

public void right2 (View view) {
    currentScore++;
    toQuestion3();
}
public void wrong2 (View view) {
    toQuestion3();
}

public void toQuestion3 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question3);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right3 (View view) {
    currentScore++;
    toQuestion4();}

public void wrong3 (View view) {
    toQuestion4();
}

public void toQuestion4 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question4);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}

public void right4 (View view) {
    currentScore++;
    toQuestion5();
}

public void wrong4 (View view) {
    toQuestion5();
}

public void toQuestion5 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question5);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right5 (View view) {
    currentScore++;
    toQuestion6();
}

public void wrong5 (View view) {
    toQuestion6();
}

public void toQuestion6 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question6);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right6 (View view) {
    currentScore++;
    toQuestion7();
}

public void wrong6 (View view) {
    toQuestion7();
}

public void toQuestion7 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question7);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right7 (View view) {
    currentScore++;
    toQuestion8();
}

public void wrong7 (View view) {
    toQuestion8();
}

public void toQuestion8 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question8);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right8 (View view) {
    currentScore++;
    toQuestion9();
}

public void wrong8 (View view) {
    toQuestion9();
}

public void toQuestion9 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question9);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right9 (View view) {
    currentScore++;
    toQuestion10();
}

public void wrong9 (View view) {
    toQuestion10();
}

public void toQuestion10 () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.question10);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
}
public void right10 (View view) {
    currentScore++;
    toEndResults();
}

public void wrong10 (View view) {
    toEndResults();
}

public void toEndResults () {
    TextView name = findViewById(R.id.name_quiz);
    String whatName = name.getText().toString();
    setContentView(R.layout.endResults);
    TextView contestant = findViewById(R.id.name_quiz);
    contestant.setText(whatName);
    display(currentScore);
    result.add(0, whatName, currentScore));
}

private void display(int number) {
    TextView quantityTextView = (TextView) findViewById(R.id.score_quiz);
    quantityTextView.setText("" + number);
}

}

Answer 1

据我了解解决方案，您需要简单而不必专业。

在name_quiz.xml中使用ListView （https://github.com/aFarkas/lazysizes/blob/master/src/lazysizes-core.js#L676或https://javastart.pl/static/programowanie-android/listview-przyklad-widoku-listowego/使用更复杂的适配器）它在开始时比RecyclerView更容易理解。
在你的toEndResults（）方法中，将分数写入csv文件，读取之前的分数并填充你的记录列表（逗号分隔值）（http://www.vogella.com/tutorials/AndroidListView/article.html）
如果您不再害怕某些事情 - 请考虑使用JSON将整个列表写入文件。（https://howtodoinjava.com/apache-commons/parse-read-write-csv-files-opencsv-tutorial/）
要对列表进行排序，您可以在此处使用示例：Read Json file in Android and Populate in ListView

Pozdro。

Answer 2

我建议添加一个像这样的列表视图的xml文件：

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

     <ListView
          android:id="@+id/list"
          android:layout_height="wrap_content"
          android:layout_width="match_parent">
     </ListView>

</LinearLayout>

然后在您的活动中的onCreate（）中定义它：

setContentView(R.layout.activity_list_view_android_example);

// Get ListView object from xml
 listView = (ListView) findViewById(R.id.list);

//Create an arraylist populated with your values here
//then pass them into an adapter

 ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
 android.R.layout.simple_list_item_1, android.R.id.text1, values);
 listView.setAdapter(adapter);

然后在更新列表时写一些代码以在填充之前对它们进行排序。

https://androidexample.com/Create_A_Simple_Listview_-_Android_Example/index.php?view=article_discription&aid=65

希望有所帮助

试图让结果可见

2 个答案: