Creating RadioButtons programmatically

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陌清茗
陌清茗 2020-12-08 20:11

I want to create a series of radio buttons which correspond to an array of strings within an Android app. The radio buttons should toggle content to be displayed from the a

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  • 2020-12-08 20:39

    You must add the radio buttons to a RadioGroup and then the RadioGroup to the layout

    I miss some information like what is submit, but your code should look like:

    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);
            rg.addView(rb[i]); //the RadioButtons are added to the radioGroup instead of the layout
            rb[i].setText("Test");
        }
        ll.addView(rg);//you add the whole RadioGroup to the layout
        ll.addView(submit); 
        submit.setOnClickListener(new View.OnClickListener() {
            public void onClick(View v) {
                for(int i = 0; i < 5; i++) { 
                    rg.removeView(rb[i]);//now the RadioButtons are in the RadioGroup
                }  
                ll.removeView(submit);
                Questions();
            }
        });   
    }
    

    Another code for dynamically creating the radiobutton

    <TableRow>
        <RadioGroup
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:orientation="vertical"
            android:id="@+id/radiobuttons">
         </RadioGroup>
    </TableRow>
    

    Code:

    public void makeRadioButtons(Vector tmpVector, int i, LinearLayout.LayoutParams lp)
    {
         RadioButton rb = new RadioButton(this);
         rb.setText((String) tmpVector.elementAt(i));
         //rg is private member of class which refers to the radio group which I find
         //by id.
         rg.addView(rb, 0, lp);
    
    }
    
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