Can I dynamically create a RadioGroup with RadioButtons inside it (no xml)?
2 answers
Something like that:
....
RadioGroup group = new RadioGroup(this);
group.setOrientation(RadioGroup.HORIZONTAL);
RadioButton btn1 = new RadioButton(this);
btn1.setText("BTN1");
group.addView(btn1);
RadioButton btn2 = new RadioButton(this);
group.addView(btn2);
btn2.setText("BTN2");
....
RadioButton btnN = new RadioButton(this);
group.addView(btnN);
btnN.setText("BTNN");
yourLayout.addView(group);
....
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This will do the job:
int buttons = 5;
RadioGroup rgp = new RadioGroup(getApplicationContext());
for (int i = 1; i <= buttons; i++) {
RadioButton rbn = new RadioButton(this);
rbn.setId(1 + 1000);
rbn.setText("RadioButton" + i);
//Attach button to RadioGroup.
rgp.addView(rbn);
}
ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
viewGroup.addView(rgp);
This is a complete example:
public class MainActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//Defining buttons quantity!
int buttons = 5;
//Create a new instance of RadioGroup.
RadioGroup rgp = new RadioGroup(getApplicationContext());
//Create buttons!
for (int i = 1; i <= buttons; i++) {
RadioButton rbn = new RadioButton(this);
rbn.setId(1 + 1000);
rbn.setText("RadioButton" + i);
//Attach button to RadioGroup.
rgp.addView(rbn);
}
//Get the root view.
ViewGroup viewGroup = (ViewGroup) ((ViewGroup) this
.findViewById(android.R.id.content)).getChildAt(0);
viewGroup.addView(rgp);
}
}
And this is the result:
If you need to use the RadioGroup defined in the xml layout and add dynamic buttons see this answer .
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