从来好事天生俭，自古瓜儿苦后甜。这篇文章主要讲述添加值，更改单击单选按钮android相关的知识，希望能为你提供帮助。
【添加值，更改单击单选按钮android】我的问题是，当我从radiobutton检查答案并想要更改其他radiobutton的检查答案时，点的总值增加（他计算答案的两个值）。我有7个RadioGroup，每个有3个RadioButton。是否可以阻止此计算？我希望有可能将我检查过的radiobutton更改为另一个，而不会增加总值。
这是我的代码：
public class question1 extends AppCompatActivity {//Necessary to calculate points
List<
Integer>
points;
int score = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_question1);
points = new ArrayList<
Integer>
();
//Passing editText value to this activity
final TextView textView = ( TextView ) findViewById(R.id.pName);
Intent intent = getIntent();
String str = intent.getStringExtra("name");
textView.setText(str);
//Sending editText value to next activity
final Button start = ( Button ) findViewById(R.id.so);
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {for (int index = 0;
index <
points.size();
index++) {
score = score + points.get(index);
Intent intent = new Intent(question1.this, fini.class);
intent.putExtra("name", textView.getText().toString());
intent.putExtra("totalPoints", score);
startActivity(intent);
}
}
});
}
// Calculate totalPoints based on checked answerspublic List<
Integer>
onRadioButtonClicked(View view) {
// Is the button now checked?
boolean checked = (( RadioButton ) view).isChecked();
switch (view.getId()) {
case R.id.answerA1:
//if (checked) {
// points = points + 3;
points.set(0, 3);
//}
break;
case R.id.answerB1:
//if (checked) {
//points = points + 2;
points.set(0, 2);
//}
break;
case R.id.answerC1:
//if (checked) {
//points = points + 1;
points.set(0, 1);
// }
break;
case R.id.answerA2:
//if (checked) {
//points = points + 3;
points.set(1, 3);
//}
break;
case R.id.answerB2:
// if (checked) {
//points = points + 2;
points.set(1, 2);
// }
break;
case R.id.answerC2:
// if (checked) {
//points = points + 1;
points.set(1, 1);
//}
break;
case R.id.answerA3:
// if (checked) {
//points = points + 3;
points.set(2, 3);
//}
break;
case R.id.answerB3:
//if (checked) {
//points = points + 2;
points.set(2, 2);
// }
break;
case R.id.answerC3:
//if (checked) {
//points = points + 1;
points.set(2, 1);
//}
break;
case R.id.answerA4:
//if (checked) {
//points = points + 3;
points.set(3, 3);
//}
break;
case R.id.answerB4:
//if (checked) {
//points = points + 2;
points.set(3, 2);
//}
break;
case R.id.answerC4:
//if (checked) {
//points = points + 1;
points.set(3, 1);
//}
break;
case R.id.answerA5:
//if (checked) {
//points = points + 3;
points.set(4, 3);
//}
break;
case R.id.answerB5:
//if (checked) {
//points = points + 2;
points.set(5, 2);
//}
break;
case R.id.answerC5:
//if (checked) {
//points = points + 1;
points.set(4, 1);
//}
break;
case R.id.answerA6:
//if (checked) {
//points = points + 3;
points.set(5, 3);
//}
break;
case R.id.answerB6:
//if (checked) {
//points = points + 2;
points.set(5, 2);
//}
break;
case R.id.answerC6:
//if (checked) {
//points = points + 1;
points.set(5, 1);
//}
break;
case R.id.answerA7:
//if (checked) {
//points = points + 3;
points.set(6, 3);
//}
break;
case R.id.answerB7:
//if (checked) {
//points = points + 2;
points.set(6, 2);
//}
break;
case R.id.answerC7:
//if (checked) {
//points = points + 1;
points.set(6, 1);
//}
break;
}
return points;
}
}<
?xml version="1.0" encoding="utf-8"?>
<
ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_margin="25dp"
android:orientation="vertical"
tools:context="com.example.android.quizapp.question1">
<
LinearLayout
android:orientation="vertical"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:padding="10dp"
android:fontFamily="serif-monospace"
android:text="@string/question1"
android:textAlignment="center"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA1"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:fontFamily="monospace"
android:text="@string/a1"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB1"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b1"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC1"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c1"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:padding="10dp"
android:fontFamily="serif-monospace"
android:text="@string/question2"
android:textAlignment="center"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup2"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA2"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a2"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB2"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b2"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC2"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c2"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:padding="10dp"
android:fontFamily="serif-monospace"
android:text="@string/question3"
android:textAlignment="center"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup3"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA3"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a3"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB3"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b3"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC3"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c3"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:fontFamily="serif-monospace"
android:text="@string/question4"
android:textAlignment="center"
android:padding="10dp"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup4"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA4"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a4"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB4"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b4"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC4"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c4"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:fontFamily="serif-monospace"
android:text="@string/question5"
android:textAlignment="center"
android:padding="10dp"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup5"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA5"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a5"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB5"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b5"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC5"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c5"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:fontFamily="serif-monospace"
android:text="@string/question6"
android:textAlignment="center"
android:padding="10dp"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup6"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA6"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a6"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB6"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b6"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC6"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c6"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginBottom="15dp"
android:layout_marginTop="8dp"
android:padding="10dp"
android:fontFamily="serif-monospace"
android:text="@string/question7"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
RadioGroup xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/radioGroup7"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:orientation="vertical">
<
RadioButton
android:id="@+id/answerA7"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/a7"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerB7"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginBottom="8dp"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/b7"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
RadioButton
android:id="@+id/answerC7"
android:onClick="onRadioButtonClicked"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:fontFamily="monospace"
android:paddingLeft="8dp"
android:paddingRight="8dp"
android:text="@string/c7"
android:textSize="13sp"
tools:targetApi="jelly_bean" />
<
/RadioGroup>
<
TextView
android:padding="10dp"
android:layout_width="match_parent"
android:layout_height="1dp"
android:layout_marginTop="20dp"
android:layout_marginBottom="10dp"
android:background="#FFCDDC39" />
<
Button
android:id="@+id/so"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:layout_marginTop="15dp"
android:fontFamily="serif-monospace"
android:text="@string/Finish"
android:textSize="20sp"
tools:targetApi="jelly_bean" />
<
TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/pName"
android:text="0"
android:visibility="gone"/>
<
/LinearLayout>
<
/ScrollView>
答案我根据你的问题更新了我的答案，试试这个我也测试了它。
public class question1 extends AppCompatActivity {//Necessary to calculate points
List<
Integer>
points;
int score = 0;
int numberofquestions = 7;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_question1);
points = new ArrayList<
Integer>
();
for (int index = 0;
index <
numberofquestions;
index++) {
points.add(index, 0);
}//Passing editText value to this activity
final TextView textView = (TextView) findViewById(R.id.pName);
Intent intent = getIntent();
String str = intent.getStringExtra("name");
textView.setText(str);
//Sending editText value to next activity
final Button start = (Button) findViewById(R.id.so);
start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {for (int index = 0;
index <
points.size();
index++) {
score = score + points.get(index);
}
// Toast.makeText(getApplicationContext(), score + "", Toast.LENGTH_SHORT).show();
Intent intent = new Intent(question1.this, fini.class);
intent.putExtra("name", textView.getText().toString());
intent.putExtra("totalPoints", score);
score=0;
startActivity(intent);
//score = 0;
}
});
}
// Calculate totalPoints based on checked answerspublic List<
Integer>
onRadioButtonClicked(View view) {
// Is the button now checked?
boolean checked = ((RadioButton) view).isChecked();
switch (view.getId()) {
case R.id.answerA1:points.set(0, 3);
break;
case R.id.answerB1:points.set(0, 2);
break;
case R.id.answerC1:points.set(0, 1);
break;
case R.id.answerA2:points.set(1, 3);
break;
case R.id.answerB2:points.set(1, 2);
break;
case R.id.answerC2:points.set(1, 1);
break;
case R.id.answerA3:points.set(2, 3);
break;
case R.id.answerB3:points.set(2, 2);
break;
case R.id.answerC3:points.set(2, 1);
break;
case R.id.answerA4:points.set(3, 3);
break;
case R.id.answerB4:points.set(3, 2);
break;
case R.id.answerC4:points.set(3, 1);
break;
case R.id.answerA5:points.set(4, 3);
break;
case R.id.answerB5:points.set(4, 2);
break;
case R.id.answerC5:points.set(4, 1);
break;
case R.id.answerA6:points.set(5, 3);
break;
case R.id.answerB6:points.set(5, 2);
break;
case R.id.answerC6:points.set(5, 1);
break;
case R.id.answerA7:points.set(6, 3);
break;
case R.id.answerB7:points.set(6, 2);
break;
case R.id.answerC7:points.set(6, 1);
break;
}
return points;
}
}
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