在下面的代码中，单选按钮值没有保存到数据库中。当我调试时，它显示为null。
是否有必要设置文本单选按钮或使用textview名称?我们可以保存单选按钮的值
这是我的布局设计:
XML
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/textView6"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="20dp"
android:padding="5dp"
android:text="Excellent"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="15sp"
android:textStyle="bold" />
<TextView
android:id="@+id/textView7"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="20dp"
android:padding="5dp"
android:text="Good"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="15sp"
android:textStyle="bold" />
TextView
android:id="@+id/textView8"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="20dp"
android:padding="5dp"
android:text="Satisfactory"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="15sp"
android:textStyle="bold" />
<TextView
android:id="@+id/textView9"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="20dp"
android:padding="5dp"
android:text="Poor"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="15sp"
android:textStyle="bold" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<TextView
android:id="@+id/textView10"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="2dp"
android:layout_marginTop="20dp"
android:padding="5dp"
android:text="Appointment/ Admission"
android:textAppearance="?android:attr/textAppearanceSmall"
android:textSize="15sp"
android:textStyle="bold" />
</LinearLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal" >
<RadioGroup
android:id="@+id/customer_appointment"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal">
<RadioButton
android:id="@+id/radioButton1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="10dp"
android:text="Excellent"/>
<RadioButton
android:id="@+id/radioButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="40dp"/>
<RadioButton
android:id="@+id/radioButton3"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="40dp"/>
<RadioButton
android:id="@+id/radioButton4"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="30dp"/>
</RadioGroup>
</LinearLayout>
Java
public class Feedback extends Activity {
TextView tv1;
Button back, home, next, save;
EditText first_name1, last_name1, email1, first_learn1, mobile_no1;
RadioGroup customer_appointment1, customer_information1, customer_telephone1, customer_waitngtime1, diagonsis_radilogy1,
diagonsis_lab1, diagonsis_pharmarcy1, diagonsis_physi1, diagonsis_waitngtime1, nursing_quality1, nursing_expla1, doctor_expla1, doctor_personal1, clinics_expla1,
clinics_process1, security_helpfull1, staff_friendliness1, staff_handling_problems1, staff_promptness1,rating1;
RadioButton rb;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
this.requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.feedback);
first_name1 = (EditText)findViewById(R.id.first_name);
last_name1 = (EditText)findViewById(R.id.last_name);
email1 = (EditText)findViewById(R.id.email);
mobile_no1 = (EditText)findViewById(R.id.mobile_no);
first_learn1 = (EditText)findViewById(R.id.first_learn);
customer_appointment1 = (RadioGroup)findViewById(R.id.customer_appointment);
// int selectedId = customer_appointment1.getCheckedRadioButtonId();
// rb = (RadioButton) findViewById(selectedId);
customer_information1 = (RadioGroup)findViewById(R.id.customer_information);
customer_telephone1 = (RadioGroup)findViewById(R.id.customer_telephone);
customer_waitngtime1 = (RadioGroup)findViewById(R.id.customer_waitngtime);
diagonsis_radilogy1 = (RadioGroup)findViewById(R.id.diagonsis_radilogy);
diagonsis_lab1 = (RadioGroup)findViewById(R.id.diagonsis_lab);
diagonsis_pharmarcy1 = (RadioGroup)findViewById(R.id.diagonsis_pharmarcy);
diagonsis_physi1 = (RadioGroup)findViewById(R.id.diagonsis_physi);
diagonsis_waitngtime1 = (RadioGroup)findViewById(R.id.diagonsis_waitngtime);
nursing_quality1 = (RadioGroup)findViewById(R.id.nursing_quality);
nursing_expla1 = (RadioGroup)findViewById(R.id.nursing_expla);
doctor_expla1 = (RadioGroup)findViewById(R.id.doctor_expla);
doctor_personal1 = (RadioGroup)findViewById(R.id.doctor_personal);
clinics_expla1 = (RadioGroup)findViewById(R.id.clinics_expla);
clinics_process1 = (RadioGroup)findViewById(R.id.clinics_process);
security_helpfull1 = (RadioGroup)findViewById(R.id.security_helpfull);
staff_friendliness1 = (RadioGroup)findViewById(R.id.staff_friendliness);
staff_handling_problems1 = (RadioGroup)findViewById(R.id.staff_handling_problems);
staff_promptness1 = (RadioGroup)findViewById(R.id.staff_promptness);
// rating = (RadioGroup)findViewById(R.id.rating);
next = (Button)findViewById(R.id.next);
next.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.next:
setContentView(R.layout.feedback2);
save = (Button)findViewById(R.id.save);
save.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
String first_name = first_name1.getText().toString();
String last_name = last_name1.getText().toString();
String email = email1.getText().toString();
String mobile_no = mobile_no1.getText().toString();
String first_learn = first_learn1.getText().toString();
String customer_appointment = ((RadioButton)findViewById(customer_appointment1.getCheckedRadioButtonId())).getText().toString();
String customer_information = ((RadioButton)findViewById(customer_information1.getCheckedRadioButtonId())).getText().toString();
String customer_telephone = ((RadioButton)findViewById(customer_telephone1.getCheckedRadioButtonId())).getText().toString();
String customer_waitngtime = ((RadioButton)findViewById(customer_waitngtime1.getCheckedRadioButtonId())).getText().toString();
String diagonsis_radilogy = ((RadioButton)findViewById(diagonsis_radilogy1.getCheckedRadioButtonId())).getText().toString();
String diagonsis_lab = ((RadioButton)findViewById(diagonsis_lab1.getCheckedRadioButtonId())).getText().toString();
String diagonsis_pharmarcy = ((RadioButton)findViewById(diagonsis_pharmarcy1.getCheckedRadioButtonId())).getText().toString();
String diagonsis_physi = ((RadioButton)findViewById(diagonsis_physi1.getCheckedRadioButtonId())).getText().toString();
String diagonsis_waitngtime = ((RadioButton)findViewById(diagonsis_waitngtime1.getCheckedRadioButtonId())).getText().toString();
String nursing_quality = ((RadioButton)findViewById(nursing_quality1.getCheckedRadioButtonId())).getText().toString();
String nursing_expla = ((RadioButton)findViewById(nursing_expla1.getCheckedRadioButtonId())).getText().toString();
String doctor_expla = ((RadioButton)findViewById(doctor_expla1.getCheckedRadioButtonId())).getText().toString();
String doctor_personal = ((RadioButton)findViewById(doctor_personal1.getCheckedRadioButtonId())).getText().toString();
String clinics_expla = ((RadioButton)findViewById(clinics_expla1.getCheckedRadioButtonId())).getText().toString();
String clinics_process = ((RadioButton)findViewById(clinics_process1.getCheckedRadioButtonId())).getText().toString();
String security_helpfull = ((RadioButton)findViewById(security_helpfull1.getCheckedRadioButtonId())).getText().toString();
String staff_friendliness = ((RadioButton)findViewById(staff_friendliness1.getCheckedRadioButtonId())).getText().toString();
String staff_handling_problems = ((RadioButton)findViewById(staff_handling_problems1.getCheckedRadioButtonId())).getText().toString();
String staff_promptness = ((RadioButton)findViewById(staff_promptness1.getCheckedRadioButtonId())).getText().toString();
// String rating = ((RadioButton)findViewById(rating1.getCheckedRadioButtonId())).getText().toString();
try {
String queryString ="first_name="+ first_name+"&last_name="+last_name+"&email="+email+ "&mobile_no="+mobile_no
+"&first_learn="+first_learn+"&customer_appointment="+customer_appointment+"&customer_information="+customer_information
+"&customer_telephone="+customer_telephone+"&customer_waitngtime="+customer_waitngtime+"&diagonsis_radilogy="+diagonsis_radilogy+"&diagonsis_lab="+diagonsis_lab
+"&diagonsis_pharmarcy="+diagonsis_pharmarcy+"&diagonsis_physi="+diagonsis_physi
+"&diagonsis_waitngtime="+diagonsis_waitngtime+"&nursing_quality="+nursing_quality+"&nursing_expla="+nursing_expla
+"&doctor_personal="+doctor_personal+"&clinics_expla="+clinics_expla+"&clinics_process="+clinics_process
+"&security_helpfull="+security_helpfull+"&staff_friendliness="+staff_friendliness+"&staff_handling_problems="+staff_handling_problems+"&staff_promptness="+staff_promptness;
String data = DatabaseUtility.executeQueryPhp("feedback", queryString);
System.out.print(data);
/* fname1.setText("");
lname1.setText("");
mobile1.setText("");
altmob1.setText("");
email1.setText("");
comment1.setText("");
*/
Toast.makeText(
Feedback.this,
"Message:Records Saved Sucessfully",
Toast.LENGTH_SHORT).show();
}
catch (Exception e) {
e.printStackTrace();
}
}
});
break;
default:
setContentView(R.layout.feedback);
break;
}
}
});
}
像这样更改代码并查看调试appointment_rb和customer_appointment的值
RadioButton appointment_rb = (RadioButton) findViewById(customer_appointment1.getCheckedRadioButtonId());
String customer_appointment = (String) appointment_rb.getText();
Where is null proceed ?
<RadioButton
android:id="@+id/radioButton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="40dp"/>
我没有看到这个按钮的文本。如果它被选中，那么文本将为空。
并且可能用户没有选择任何按钮?
p
next.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.next:
开关无用，'v'总是'下一个'
乌利希期刊指南
使用下面的方法获取选中的单选按钮ID，如果返回-1，表示用户没有选择任何单选按钮。
radioGroup.getCheckedRadioButtonId(); // it will return unique ID of checked radio button or -1 on empty selection.
查看此处的文档>> getCheckedRadioButtonID();
最后，这个字符串
setContentView (R.layout.feedback2);
为了什么?试着注释一下