How to check if a radiobutton is checked in a radiogroup in Android?

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I need to set validation that user must fill / select all details in a page. If any fields are empty wanna show Toast message to fill. Now I need set validation

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  •  佛祖请我去吃肉
    2020-12-04 13:39

    try to use this

        
        
    
            
    
    

    this is java class

    public void onRadioButtonClicked(View view) {
            // Is the button now checked?
            boolean checked = ((RadioButton) view).isChecked();
    
            // Check which radio button was clicked
            switch(view.getId()) {
                case R.id.standard_delivery:
                    if (checked)
                        Toast.makeText(DishActivity.this," standard delivery",Toast.LENGTH_LONG).show();
                        break;
                case R.id.midnight_delivery:
                    if (checked)
                        Toast.makeText(DishActivity.this," midnight delivery",Toast.LENGTH_LONG).show();
                        break;
            }
        }
    

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