Set default checked Radio Button
Solution 1
I know I'm late but for those who search for the answer like me this can be useful.
When you add RadioButton to a RadioGroup, you must set the button checked after adding it to the parent like:
RadioGroup radioGroup = new RadioGroup(getContext())
RadioButton radioButton = new RadioButton(getContext());
radioButton.setText("text");
mRadioGroup.addView(radioButton);
radioButton.setChecked(true);
If the view is checked before adding it to the parent, it will be impossible to uncheck it.
Solution 2
You can do this simply:
JAVA:
radiogroup =(RadioGroup)findViewById(R.id.radiogroup);
radiobutton1 =(RadioButton)findViewById(R.id.radiobutton1);
radiobutton2 =(RadioButton)findViewById(R.id.radiobutton2);
if(your first assessment){
radiobutton1.setChecked(true);
}else{
radiobutton2.setChecked(true);
}
XML:
<RadioGroup
android:id="@+id/radiogroup"
android:orientation="horizontal"
android:layout_width="wrap_content"
android:layout_height="wrap_content">
<RadioButton
android:id="@+id/radiobutton1"
android:checked="true"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<RadioButton
android:id="@+id/radiobutton2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RadioGroup>
Solution 3
Simple, at first time load the screen check the position of In Getview
method and then apply condition:
if (position == 0) {
holder.act_delivery_rbtn.setChecked(true);
}
Solution 4
Just make checked = "true" in your code
Solution 5
If you are only using one radio box for checking on and off, maybe you should use checkbox or toggle button instead.
http://developer.android.com/resources/tutorials/views/hello-formstuff.html
Scroll down and see checkbox and toggle button.
When using radios you usually have more than one and choose between them. Like easy, medium, hard.
Replace
radio.toggle();
with
radio.setChecked(true);
thehindutimes
Updated on July 05, 2022Comments
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thehindutimes almost 2 years
I'm creating a
RadioGroup
withRadioButton
s dynamically and need to have one radio button checked by default.I've done this by using both
radioButton.setChecked(true)
andradioButton.toggle();
The problem I have is that when I at runtime select another radio button the first one stays checked so I end up with two checked radio buttons in the radio group.
Has anyone had this problem and know how to solve it?
private RadioButton addRadioButton(String type, String price){ RadioButton radio = new RadioButton(Order.this); radio.setText(type + " (" + Utils.formatCurrency(price) + ")"); radio.setTextAppearance(Order.this, R.style.portalCellTextStyle); radio.setTextSize(TypedValue.COMPLEX_UNIT_SP, 10); radio.setTag(price); if(type.toLowerCase().equals("m")) radio.toggle(); return radio; }
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thehindutimes over 10 yearsI tried both and they both check the button but the button still stays checked if I check another one
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SilentKiller over 10 yearsare you adding them into single RadioGroup.?