title: Need help in setting up code in Fragment (Android Development)
body: <p>Showing error: 
  i have mentioned error position in the code with comment.. please help i cant solve this.
  Actually i have copied that code from a <code>Activity</code> class to the <code>Fragment</code> class. but its showing follwing errors.</p>
  
  <p>I added <code>ActionBar</code> tabs with fragments,<code>Viewpager</code>.
  have <code>Fragment</code> layout and class for individual <code>Fragment</code>.</p>
  
  <p>Error 1 is <code>The method findViewById(int) is undefined for the type TempFragment</code></p>
  
  <p>Error 2 is <code>The method makeText(Context, CharSequence, int) in the type Toast is not applicable for the arguments (TempFragment, String, int)</code></p>
  
  <pre><code>package com.example.converterplus;
  
  import android.os.Bundle;
  import android.support.v4.app.Fragment;
  import android.view.LayoutInflater;
  import android.view.View;
  import android.view.ViewGroup;
  import android.widget.EditText;
  import android.widget.RadioButton;
  import android.widget.Toast;
  
  public class TempFragment extends Fragment { 
  private EditText text;
  
  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
          Bundle savedInstanceState) {
  
      View rootView = inflater.inflate(R.layout.fragment_temp, container, false);
  
      return rootView;
      text = (EditText) findViewById(R.id.editText1); // ***error 1
  
  }
  
  // this method is called at button click because we assigned the name to the
    // "OnClick property" of the button
    public void onClick(View view) {
      switch (view.getId()) {
      case R.id.button1:
        RadioButton celsiusButton = (RadioButton) findViewById(R.id.radio0); // ***error 1
        RadioButton fahrenheitButton = (RadioButton) findViewById(R.id.radio1); // ***error 1
        if (text.getText().length() == 0) {
          Toast.makeText(this, "Please enter a valid number", // ***error 2
              Toast.LENGTH_LONG).show();
          return;
        }
  
        float inputValue = Float.parseFloat(text.getText().toString());
        if (celsiusButton.isChecked()) {
          text.setText(String
              .valueOf(ConverterUtil.convertFahrenheitToCelsius(inputValue)));
          celsiusButton.setChecked(false);
          fahrenheitButton.setChecked(true);
        } else {
          text.setText(String
              .valueOf(ConverterUtil.convertCelsiusToFahrenheit(inputValue)));
          fahrenheitButton.setChecked(false);
          celsiusButton.setChecked(true);
        }
        break;
      }
    } 
  }
  </code></pre>
  
  <p>LOGCAT LOG (APP crashes on clicking button): </p>
  
  <pre>03-13 01:29:50.708: V/InputMethodManager(12706): onWindowFocus: android.widget.EditText{41951ea0 VFED..CL .F....ID 32,32-452,111 #7f090001 app:id/editText1} softInputMode=288 first=true flags=#1810100
  03-13 01:29:50.714: V/InputMethodManager(12706): START INPUT: android.widget.EditText{41951ea0 VFED..CL .F....ID 32,32-452,111 #7f090001 app:id/editText1} ic=com.android.internal.widget.EditableInputConnection@4195af78 tba=android.view.inputmethod.EditorInfo@4195ae68 controlFlags=#107
  03-13 01:29:50.716: V/InputMethodManager(12706): Starting input: Bind result=InputBindResult{com.android.internal.view.IInputMethodSession$Stub$Proxy@4195bbf0 com.android.inputmethod.latin/.LatinIME #1325}
  03-13 01:29:52.217: I/SurfaceTextureClient(12706): [STC::queueBuffer] (this:0x5dec7898) fps:3.39, dur:1474.09, max:502.67, min:25.80
  03-13 01:29:53.221: I/SurfaceTextureClient(12706): [STC::queueBuffer] (this:0x5dec7898) fps:1.99, dur:1003.98, max:502.01, min:501.97
  03-13 01:29:53.897: D/VelocityTracker(12706): VelocityTracker: int datax = 10
  03-13 01:29:53.897: D/VelocityTracker(12706): VelocityTracker: int m_velocity_magnify_x = 1.000000
  03-13 01:29:53.897: D/VelocityTracker(12706): VelocityTracker: int datay = 10
  03-13 01:29:53.897: D/VelocityTracker(12706): VelocityTracker: int m_velocity_magnify_y = 1.000000
  03-13 01:29:54.226: I/SurfaceTextureClient(12706): [STC::queueBuffer] (this:0x5dec7898) fps:2.98, dur:1005.72, max:502.47, min:75.56
  03-13 01:29:55.228: I/SurfaceTextureClient(12706): [STC::queueBuffer] (this:0x5dec7898) fps:2.00, dur:1002.21, max:501.60, min:500.60
  03-13 01:29:56.259: I/SurfaceTextureClient(12706): [STC::queueBuffer] (this:0x5dec7898) fps:3.88, dur:1030.73, max:484.34, min:160.27
  03-13 01:29:56.422: V/Provider/Settings(12706): invalidate [system]: current 404 != cached 0
  03-13 01:29:56.426: V/Provider/Settings(12706): from db cache, name = sound_effects_enabled , value = 0
  03-13 01:29:56.428: D/AndroidRuntime(12706): Shutting down VM
  03-13 01:29:56.428: W/dalvikvm(12706): threadid=1: thread exiting with uncaught exception (group=0x414b79a8)
  03-13 01:29:56.433: E/AndroidRuntime(12706): FATAL EXCEPTION: main
  03-13 01:29:56.433: E/AndroidRuntime(12706): java.lang.IllegalStateException: Could not find a method onClick(View) in the activity class com.example.converterplus.MainActivity for onClick handler on view class android.widget.Button with id 'button1'
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.view.View$1.onClick(View.java:3593)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.view.View.performClick(View.java:4211)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.view.View$PerformClick.run(View.java:17446)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.os.Handler.handleCallback(Handler.java:725)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.os.Handler.dispatchMessage(Handler.java:92)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.os.Looper.loop(Looper.java:153)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.app.ActivityThread.main(ActivityThread.java:5297)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at java.lang.reflect.Method.invokeNative(Native Method)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at java.lang.reflect.Method.invoke(Method.java:511)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:833)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at dalvik.system.NativeStart.main(Native Method)
  03-13 01:29:56.433: E/AndroidRuntime(12706): Caused by: java.lang.NoSuchMethodException: onClick [class android.view.View]
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at java.lang.Class.getConstructorOrMethod(Class.java:460)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at java.lang.Class.getMethod(Class.java:915)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    at android.view.View$1.onClick(View.java:3586)
  03-13 01:29:56.433: E/AndroidRuntime(12706):    ... 11 more
  03-13 01:29:58.320: I/Process(12706): Sending signal. PID: 12706 SIG: 9
  
      </pre>