Creating RadioGroup programmatically
53,766
Solution 1
this The specified child already has a parent. You must call removeView() on the child's parent first.
because you are adding child( radio group ) to the parent layout multiple times.
try like this
private void createRadioButton() {
final RadioButton[] rb = new RadioButton[5];
RadioGroup rg = new RadioGroup(this); //create the RadioGroup
rg.setOrientation(RadioGroup.HORIZONTAL);//or RadioGroup.VERTICAL
for(int i=0; i<5; i++){
rb[i] = new RadioButton(this);
rb[i].setText(" " + ContactsActivity.phonetype.get(i)
+ " " + ContactsActivity.phone.get(i));
rb[i].setId(i + 100);
rg.addView(rb[i]);
}
ll.addView(rg);//you add the whole RadioGroup to the layout
}
Solution 2
Here is my source code,
First Create String arrays
<string-array name="websites_array">
<item>Yahoo</item>
<item>Hotmail</item>
<item>Gmail</item>
<item>Facebook</item>
<item>Other</item>
</string-array>
Then in source code,
final RadioGroup radioGrp = (RadioGroup) findViewById(R.id.radioGroup);
//get string array from source
String[] websitesArray = getResources().getStringArray(R.array.websites_array);
//create radio buttons
for (int i = 0; i < websitesArray.length; i++) {
RadioButton radioButton = new RadioButton(this);
radioButton.setText(websitesArray[i]);
radioButton.setId(i);
radioGrp.addView(radioButton);
}
//set listener to radio button group
radioGrp.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
@Override
public void onCheckedChanged(RadioGroup group, int checkedId) {
int checkedRadioButtonId = radioGrp.getCheckedRadioButtonId();
RadioButton radioBtn = (RadioButton) findViewById(checkedRadioButtonId);
Toast.makeText(ConfigurationActivity.this, radioBtn.getText(), Toast.LENGTH_SHORT).show();
}
});
That's all... :)
Solution 3
try this
RadioButton[] radiobutton = new RadioButton[5];
final RadioGroup radiogroup = new RadioGroup(this);
LinearLayout listmainLayout = (LinearLayout) findViewById(R.id.phonelist);
// listmainLayout.setLayoutParams(new
// ListView.LayoutParams(width,
// height / 10));
listmainLayout.setGravity(Gravity.CENTER_VERTICAL);
RelativeLayout mainlistLayout = new RelativeLayout(
getApplicationContext());
LinearLayout.LayoutParams mainlistLayoutParams = new LinearLayout.LayoutParams(
(int) (width * 0.85), LayoutParams.WRAP_CONTENT);
mainlistLayout.setLayoutParams(mainlistLayoutParams);
// mainlistLayout.setOrientation(LinearLayout.VERTICAL);
mainlistLayout.setPadding((int) (0.03 * width), 0, 0, 0);
LinearLayout.LayoutParams radiogroupparams = new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.WRAP_CONTENT,
LinearLayout.LayoutParams.WRAP_CONTENT);
radiogroup.setLayoutParams(radiogroupparams);
for (int i = 0; i < 5; i++) {
radiobutton[i] = new RadioButton(this);
radiobutton[i].setText(" " + ContactsActivity.phonetype.get(i)
+ " " + ContactsActivity.phone.get(i));
radiobutton[i].setId(i + 100);
radiogroup.addView(radiobutton[i]);
mainlistLayout.addView(radiogroup);
}
Solution 4
Add array to strings.xml:
<string-array name="some_array">
<item>some_item_0</item>
<item>some_item_1</item>
<item>some_item_2</item>
</string-array>
I don't think you need id but text for each button so put somewhere this method (in my case this is Utils class):
public static void fillRadioGroup(Context context, RadioGroup radioGroup, int stringArrayId){
for (String s : context.getResources().getStringArray(stringArrayId)){
RadioButton radioButton = new RadioButton(context);
radioButton.setText(s);
radioGroup.addView(radioButton);
}
if(radioGroup.getChildCount() > 0)
radioGroup.check(radioGroup.getChildAt(0).getId());
}
Then you can call it:
Utils.fillRadioGroup(this, radioGroup, R.array.some_array);
To get text you need to call:
if(radioGroup.getChildCount() > 0)
String text = ((RadioButton) findViewById(radioGroup.getCheckedRadioButtonId())).getText().toString();
Author by
Sai Durga
Updated on March 08, 2021Comments
-
Sai Durga over 3 years
I'm getting an Error while working with the following code
Error: The specified child already has a parent you must call removeView on the child's parent first
Anyone please help me in resolving this Error:
RadioButton[] radiobutton = new RadioButton[5]; RadioGroup radiogroup = new RadioGroup(this); for (int i = 0; i < 5; i++) { LinearLayout listmainLayout = (LinearLayout) findViewById(R.id.phonelist); // listmainLayout.setLayoutParams(new // ListView.LayoutParams(width, // height / 10)); listmainLayout.setGravity(Gravity.CENTER_VERTICAL); RelativeLayout mainlistLayout = new RelativeLayout(getApplicationContext()); LinearLayout.LayoutParams mainlistLayoutParams = new LinearLayout.LayoutParams( (int) (width * 0.85), LayoutParams.WRAP_CONTENT); mainlistLayout.setLayoutParams(mainlistLayoutParams); // mainlistLayout.setOrientation(LinearLayout.VERTICAL); mainlistLayout.setPadding((int) (0.03 * width), 0, 0, 0); LinearLayout.LayoutParams radiogroupparams = new LinearLayout.LayoutParams( LinearLayout.LayoutParams.WRAP_CONTENT, LinearLayout.LayoutParams.WRAP_CONTENT); radiogroup.setLayoutParams(radiogroupparams); radiobutton[i] = new RadioButton(this); radiobutton[i].setText(" " + ContactsActivity.phonetype.get(i) + " " + ContactsActivity.phone.get(i)); radiobutton[i].setId(i + 100); radiogroup.removeView(radiobutton[i]); radiogroup.addView(radiobutton[i]); mainlistLayout.addView(radiogroup); }
My logcat shows:
11-12 17:51:11.500: E/AndroidRuntime(3353): FATAL EXCEPTION: main 11-12 17:51:11.500: E/AndroidRuntime(3353): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.contacts_appetite/com.example.contacts_appetite.ContactDetalisList}: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2059) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2084) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread.access$600(ActivityThread.java:130) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1195) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.os.Handler.dispatchMessage(Handler.java:99) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.os.Looper.loop(Looper.java:137) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread.main(ActivityThread.java:4745) 11-12 17:51:11.500: E/AndroidRuntime(3353): at java.lang.reflect.Method.invokeNative(Native Method) 11-12 17:51:11.500: E/AndroidRuntime(3353): at java.lang.reflect.Method.invoke(Method.java:511) 11-12 17:51:11.500: E/AndroidRuntime(3353): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 11-12 17:51:11.500: E/AndroidRuntime(3353): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 11-12 17:51:11.500: E/AndroidRuntime(3353): at dalvik.system.NativeStart.main(Native Method) 11-12 17:51:11.500: E/AndroidRuntime(3353): Caused by: java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first. 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.view.ViewGroup.addViewInner(ViewGroup.java:3378) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.view.ViewGroup.addView(ViewGroup.java:3249) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.view.ViewGroup.addView(ViewGroup.java:3194) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.view.ViewGroup.addView(ViewGroup.java:3170) 11-12 17:51:11.500: E/AndroidRuntime(3353): at com.example.contacts_appetite.ContactDetalisList.getView(ContactDetalisList.java:139) 11-12 17:51:11.500: E/AndroidRuntime(3353): at com.example.contacts_appetite.ContactDetalisList.onCreate(ContactDetalisList.java:65) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.Activity.performCreate(Activity.java:5008) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1079) 11-12 17:51:11.500: E/AndroidRuntime(3353): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2023) 11-12 17:51:11.500: E/AndroidRuntime(3353): ... 11 more