AndroidStudioRadioButton实现单选试题评分机制
效果实现图Java代码：
public class MainActivity extends AppCompatActivity {
private Button btnMainReset;
private RadioGroup radGupDemo1;
private RadioButton Radbtn1A;
private RadioButton Radbtn1B;
private RadioButton Radbtn1C;
private RadioButton Radbtn1D;
private RadioGroup radGupDemo2;
private RadioButton Radbtn2A;
private RadioButton Radbtn2B;
private RadioButton Radbtn2C;
private RadioButton Radbtn2D;
private RadioGroup radGupDemo3;
private RadioButton Radbtn3A;
private RadioButton Radbtn3B;
private RadioButton Radbtn3C;
private RadioButton Radbtn3D;
private RadioGroup radGupDemo4;
private RadioButton Radbtn4A;
private RadioButton Radbtn4B;
private RadioButton Radbtn4C;
private RadioButton Radbtn4D;
private Button btnMainRefer;
private TextView tvMainResult;
@Override
protected void onCreate(Bundle savedInstanceState){
setContentView(R.layout.activity_main);
initView();
//每个单选组添加
radGupDemo1.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
@Override
android radiogroup
public void onCheckedChanged(RadioGroup group,int checkedId){
RadioButton radBtn =findViewById(checkedId);
Log.i("RadioButton", Text().toString());
}
});
radGupDemo2.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group,int checkedId){
RadioButton radBtn =findViewById(checkedId);
Log.i("RadioButton", Text().toString());
}
});
radGupDemo3.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group,int checkedId){
RadioButton radBtn =findViewById(checkedId);
Log.i("RadioButton", Text().toString());
}
});
radGupDemo4.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener(){
@Override
public void onCheckedChanged(RadioGroup group,int checkedId){
RadioButton radBtn =findViewById(checkedId);
Log.i("RadioButton", Text().toString());
}
});
btnMainRefer.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
int optionID1 = CheckedRadioButtonId();
int optionID2 = CheckedRadioButtonId();
int optionID3 = CheckedRadioButtonId();
int optionID4 = CheckedRadioButtonId();
if(optionID1 == R.id.Radbtn1A & optionID2==R.id.Radbtn2C & optionID3==R.id.Radbtn3B & optionID4==R.id.Radbtn4A){
tvMainResult.setText("分数：100分");
}else if(optionID1 == R.id.Radbtn1A & optionID2==R.id.Radbtn2C & optionID3==R.id.Radbtn3B || optionID2==R.id.Radbtn2C & optionID3==R.id. Radbtn3B & optionID4==R.id.Radbtn4A || optionID1 == R.id.Radbtn1A& optionID3==R.id.Radbtn3B & optionID4==R.id.Radbtn4A){
tvMainResult.setText("分数：75分");
}else if(optionID1 == R.id.Radbtn1A & optionID2==R.id.Radbtn2C || optionID1 == R.id.Radbtn3B& op
tionID3==R.id.Radbtn3B||optionID1 == R.id. Radbtn1A& optionID4==R.id.Radbtn4A|| optionID2==R.id.Radbtn2C & optionID3==R.id.Radbtn3B|| optionID2==R.id.Radbtn2C & optionID4==R.id.Radbtn4 A|| optionID3==R.id.Radbtn3B & optionID4==R.id.Radbtn4A){
tvMainResult.setText("分数：50分");
}else if(optionID1 == R.id.Radbtn1A  || optionID2==R.id.Radbtn2C  || optionID3==R.id.Radbtn3B || optionID4==R.id.Radbtn4A){
tvMainResult.setText("分数：25分");
}else if(optionID1==-1||optionID2==-1||optionID3==-1||optionID4==-1){
Toast.makeText(MainActivity.this,"请作出选择", Toast.LENGTH_SHORT).show();
}else{
tvMainResult.setText("分数：0分");
}
}
});
btnMainReset.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View v){
Radbtn1A.setChecked(false);
Radbtn1B.setChecked(false);
Radbtn1C.setChecked(false);
Radbtn1D.setChecked(false);
Radbtn2A.setChecked(false);
Radbtn2B.setChecked(false);
Radbtn2C.setChecked(false);
Radbtn2D.setChecked(false);
Radbtn3A.setChecked(false);
Radbtn3B.setChecked(false);
Radbtn3C.setChecked(false);
Radbtn3D.setChecked(false);
Radbtn4A.setChecked(false);
Radbtn4B.setChecked(false);
Radbtn4C.setChecked(false);
Radbtn4D.setChecked(false);
tvMainResult.setText("");
Toast.makeText(MainActivity.this,"重置完毕",Toast.LENGTH_SHORT).show();
}
});
}
private void initView(){
btnMainReset =(Button)findViewById(R.id.btnMainReset);
radGupDemo1 =(RadioGroup)findViewById(R.id.radGupDemo1);
Radbtn1A =(RadioButton)findViewById(R.id.Radbtn1A);
Radbtn1B =(RadioButton)findViewById(R.id.Radbtn1B);
Radbtn1C =(RadioButton)findViewById(R.id.Radbtn1C);
Radbtn1D =(RadioButton)findViewById(R.id.Radbtn1D);
radGupDemo2 =(RadioGroup)findViewById(R.id.radGupDemo2);
Radbtn2A =(RadioButton)findViewById(R.id.Radbtn2A);
Radbtn2B =(RadioButton)findViewById(R.id.Radbtn2B);
Radbtn2C =(RadioButton)findViewById(R.id.Radbtn2C);
Radbtn2D =(RadioButton)findViewById(R.id.Radbtn2D);
radGupDemo3 =(RadioGroup)findViewById(R.id.radGupDemo3);
Radbtn3A =(RadioButton)findViewById(R.id.Radbtn3A);
Radbtn3B =(RadioButton)findViewById(R.id.Radbtn3B);
Radbtn3C =(RadioButton)findViewById(R.id.Radbtn3C);
Radbtn3D =(RadioButton)findViewById(R.id.Radbtn3D);
radGupDemo4 =(RadioGroup)findViewById(R.id.radGupDemo4);
Radbtn4A =(RadioButton)findViewById(R.id.Radbtn4A);
Radbtn4B =(RadioButton)findViewById(R.id.Radbtn4B);
Radbtn4C =(RadioButton)findViewById(R.id.Radbtn4C);
Radbtn4D =(RadioButton)findViewById(R.id.Radbtn4D);
btnMainRefer =(Button)findViewById(R.id.btnMainRefer);
tvMainResult =(TextView)findViewById(R.id.tvMainResult);
}
}

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