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copied!<p>You don't need to go through your activity in order to achieve this. Remove the onclick line and add an id for the button in your layout:</p> <pre><code><Button android:id="@+id/calc_button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/button_singleCalc" /> </code></pre> <p>Then, simply add an OnClickListener to your button within your Fragment. Something like that:</p> <pre><code>private View mRootView; private EditText mEditText; public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // If mItem is non-null... if (mItem != null) { if (mItem.title == "Calculation") { // If the title is Calculation, use the calculation layout mRootView = inflater.inflate(R.layout.calculation_layout, container, false); mEditText = (EditText) mRootView.findViewById(R.id.edit_phiD); ((Button)mRootView.findViewById(R.id.calc_button)).setOnClickListener(this); } else { // Otherwise, show the dummy content as text in a TextView mRootView = inflater.inflate(R.layout.fragment_screen_detail, container, false); ((TextView) mRootView .findViewById(R.id.screen_detail)).setText(mItem.title); } } else { mRootView = inflater.inflate(R.layout.fragment_screen_detail, container, false); } return mRootView; } </code></pre> <p>(Your fragment needs to implement OnClickListener for this). Then you'll get a callback on your Fragment, and here's what you do there:</p> <pre><code>public void onClick(View v){ //Retrieve all the information, and set the values in the Calculator String number = mEditText.getText().toString(); double angle = Double.parseDouble(number); Calculator.longCalc(); } </code></pre>

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