title: Android : Help in RadioButton Toast
body: <p><img src="https://i.stack.imgur.com/k5IJM.png" alt="enter image description here"></p>
  
  <p>If user clicks NEXT button without selecting option it has to toast a message, "pls select any one" else it should goto  next screen.  I have tried but its not going to next screen, Instead its showing  toast"pls select any one"  and my code</p>
  
  <pre><code>public class Question1 extends Activity implements OnClickListener {
  Button vid, next;
  Typeface tp;
  TextView tv;
  RadioGroup rg;
  RadioButton rb;
  Button b;
  SharedPreferences sp;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      requestWindowFeature(Window.FEATURE_NO_TITLE);
      setContentView(R.layout.question1);
      sp = getSharedPreferences("AppFile1", 0);
  
      tv = (TextView) findViewById(R.id.tvQuestion1);
  
      rg = (RadioGroup) findViewById(R.id.radioGroup1);
      vid = (Button) findViewById(R.id.buttonQuestion1VIdeo);
      next = (Button) findViewById(R.id.buttonQuestion1Next);
      vid.setOnClickListener(this);
      next.setOnClickListener(this);
  
  }
  
  @Override
  public void onClick(View v) {
      switch (v.getId()) {
      case R.id.buttonQuestion1VIdeo:
          Intent i = new Intent(Question1.this, VideoActivity.class);
          startActivity(i);
          break;
      case R.id.buttonQuestion1Next:
          if (next.isSelected()) {
              int selectedId = rg.getCheckedRadioButtonId();
              rb = (RadioButton) findViewById(selectedId);
              String s = rb.getText().toString();
              SharedPreferences.Editor ed = sp.edit();
              ed.putString("q1", s);
              ed.commit();
              Intent ia = new Intent(Question1.this, Question2.class);
              startActivity(ia);
  
          } else {
              Toast.makeText(getApplicationContext(), "Please Select Answer", 0).show();
          }
  
          break;
      default:
          break;
      }
  
  }
  </code></pre>
  
  <p>}</p>