Creazione di RadioGroup in modo programmato

Ho ottenuto un errore durante il seguente codice

Error:The specified child already has a parent you must call removeView on the child's parent first

  • Threading Esempio in Android
  • Android Come riutilizzare un layout di intestazione come una vista vuota in un ListView
  • Lockscreen nativo di Android ICS
  • cordova ubuntu: Si è verificato un errore durante l'inserimento degli obiettivi Android
  • come impostare l'intestazione di soap utilizzando ksoap2 - android
  • Eclipse + Android + JUnit prova i riferimenti android.os class = NoClassDefFoundError
  • Chiunque mi aiuti a risolvere questo codice:

     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); 

    Il mio logcat mostra:

     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 

    4 Solutions collect form web for “Creazione di RadioGroup in modo programmato”

    questo The specified child already has a parent. You must call removeView() on the child's parent first. The specified child already has a parent. You must call removeView() on the child's parent first. perché stai aggiungendo il figlio (gruppo radio) al layout genitore più volte.

    provare così

     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 } 

    Ecco il mio codice sorgente,

    Prima crea arrays stringhe

     <string-arrays name="websites_arrays"> <item>Yahoo</item> <item>Hotmail</item> <item>Gmail</item> <item>Facebook</item> <item>Other</item> </string-arrays> 

    Poi nel codice sorgente,

     final RadioGroup radioGrp = (RadioGroup) findViewById(R.id.radioGroup); //get string arrays from source String[] websitesArray = getResources().getStringArray(R.arrays.websites_arrays); //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(); } }); 

    È tutto… 🙂

    prova questo

     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); } 

    Aggiungi arrays a strings.xml:

     <string-arrays name="some_arrays"> <item>some_item_0</item> <item>some_item_1</item> <item>some_item_2</item> </string-arrays> 

    Non credo che hai bisogno di ID ma di un text per each button così messo da qualche parte questo metodo (nel mio caso questa è la class Utils):

     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()); } 

    Poi puoi chiamarlo:

     Utils.fillRadioGroup(this, radioGroup, R.arrays.some_arrays); 

    Per get il text è necessario call:

     if(radioGroup.getChildCount() > 0) String text = ((RadioButton) findViewById(radioGroup.getCheckedRadioButtonId())).getText().toString(); 
    L'Android è un fan Android di Google, tutto su telefoni Android, Android Wear, Android Dev e applicazioni Android Games e così via.