CODEWITHSUNDEEP
javaandroidradio-buttonselectedchecked
Ricardo Potozky de Oliveira
Ricardo Potozky de Oliveira

Reputation: 301

How to check if "Radiobutton" is checked?

I would like to make a structure with the condition (if-else) RadioButton

I want that when the Radiobutton RB1 is selected, this function is active:

regAuxiliar = ultimoRegistro;

And when the radiobutton RB2 is selected, this function is active:

regAuxiliar = objRegistro;

And sorry for my English, I'm Brazilian.

Upvotes: 13

Views: 205937

Answers (10)

T.A
T.A

Reputation: 11

This worked for me:

   Espresso.onView(ViewMatchers.withId(R.id.radiobutton)).check(ViewAssertions.matches(isChecked()))

Upvotes: 0

benhatsor
benhatsor

Reputation: 2033

Check if they're checked with the el.checked attribute.

Docs or this Question

let radio1 = document.querySelector('.radio1');
let radio2 = document.querySelector('.radio2');
let output = document.querySelector('.output');

function update() {
  if (radio1.checked) {
    output.innerHTML = "radio1";
  }
  else {
    output.innerHTML = "radio2";
  }
}

update();
<div class="radios">
  <input class="radio1" type="radio" name="radios" onchange="update()" checked>
  <input class="radio2" type="radio" name="radios" onchange="update()">
</div>
<div class="output"></div>

Upvotes: 0

XXIV
XXIV

Reputation: 61

Simple Solution

radioSection.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
          @Override
          public void onCheckedChanged(RadioGroup group1, int checkedId1) {
              switch (checkedId1) {
                  case R.id.rbSr://radiobuttonID
                      //do what you want
                      break;
                  case R.id.rbJr://radiobuttonID
                      //do what you want
                      break;
              }
          }
      });

Upvotes: 0

Javier Guti&#233;rrez-Maturana S&#225;nc
Javier Guti&#233;rrez-Maturana S&#225;nc

Reputation: 383

If you need for espresso test the solutions is like this : 

onView(withId(id)).check(matches(isChecked()));

Bye,

Upvotes: 5

Hassan Naqvi
Hassan Naqvi

Reputation: 423

You can use switch like this:

XML Layout

<RadioGroup
            android:id="@+id/RG"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">

            <RadioButton
                android:id="@+id/R1"
                android:layout_width="wrap_contnet"
                android:layout_height="wrap_content"
                android:text="R1" />

            <RadioButton
                android:id="@+id/R2"
                android:layout_width="wrap_contnet"
                android:layout_height="wrap_content"
                android:text="R2" />
</RadioGroup>

And JAVA Activity

switch (RG.getCheckedRadioButtonId()) {
        case R.id.R1:
            regAuxiliar = ultimoRegistro;
        case R.id.R2:
            regAuxiliar = objRegistro;
        default:
            regAuxiliar = null; // none selected
    }

You will also need to implement an onClick function with button or setOnCheckedChangeListener function to get required functionality.

Upvotes: 1

Dheeresh Singh
Dheeresh Singh

Reputation: 15701

radiobuttonObj.isChecked() will give you boolean

if(radiobuttonObj1.isChecked()){
//do what you want 
}else if(radiobuttonObj2.isChecked()){
//do what you want 
}

Upvotes: 5

Basil Basaif
Basil Basaif

Reputation: 372

        if(jRadioButton1.isSelected()){
            jTextField1.setText("Welcome");
        }
        else if(jRadioButton2.isSelected()){
            jTextField1.setText("Hello");
        }

Upvotes: 14

Andro Selva
Andro Selva

Reputation: 54332

You can also maintain a flag value based on listener, 

 radioButton.setOnCheckedChangeListener(new OnCheckedChangeListener() {

            public void onCheckedChanged(CompoundButton arg0, boolean arg1) {

                //handle the boolean flag here. 
                  if(arg1==true)
                         //Do something

                else 
                    //do something else

            }
        });

Or simply isChecked() can also be used to check the state of your RadioButton.

Here is a link to a sample,

http://www.mkyong.com/android/android-radio-buttons-example/

And then based on the flag you can execute your function.

Upvotes: 6

FabianCook
FabianCook

Reputation: 20587

Just as you would with a CheckBox

RadioButton rb;

rb = (RadioButton) findViewById(R.id.rb);

rb.isChecked();

Upvotes: 24

st0le
st0le

Reputation: 33565

radioButton.isChecked() function returns true if the Radion button is chosen, false otherwise.

Source

Upvotes: 2

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