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POImplementing ViewPager into a LinearLayout
 

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  1. POImplementing ViewPager into a LinearLayout
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    <p>What I am trying to do is to have a ViewPager section on my app, where the user can scroll to see the results. I am using Android Studio.</p> <p>At the moment I am currently displaying the results like so, by outputting the values to <em>out</em> by stringing them together:</p> <p><strong>Part of Main_Activity.java</strong></p> <pre><code>class CustomOnItemSelectedListener implements AdapterView.OnItemSelectedListener { public void onItemSelected(AdapterView&lt;?&gt; parent, View view, int pos,long id) { String tempValue = spinner1.getSelectedItem().toString(); float inputValue; if(text.getText().length() == 0) { inputValue = Float.parseFloat("10"); text.setText("10"); } else { inputValue = Float.parseFloat(text.getText().toString()); } if ("Fahrenheit".equals(tempValue)) { out.setText(String.valueOf(ConverterUtil.convertFahrenheitToCelsius(inputValue)) + " &amp; " + String.valueOf(ConverterUtil.convertFahrenheitToKelvin(inputValue))); type.setText("Celsius + Kelvin"); } if ("Celsius".equals(tempValue)) { out.setText(String.valueOf(ConverterUtil.convertCelsiusToFahrenheit(inputValue)) + " &amp; " + String.valueOf(ConverterUtil.convertCelsiusToKelvin(inputValue))); type.setText("Fahrenheit + Kelvin"); } if ("Kelvin".equals(tempValue)) { out.setText(String.valueOf(ConverterUtil.convertKelvinToCelsius(inputValue)) + " &amp; " + String.valueOf(ConverterUtil.convertKelvinToFahrenheit(inputValue))); type.setText("Celsius + Fahrenheit"); } } </code></pre> <p>What I would like to do is to to have each result in a separate view in which the user can scroll, however this is where I get a little lost/confused.</p> <p>I have implemented my Fragment:</p> <p><strong>Part of Main_Activity.java</strong></p> <pre><code>class ScreenSlidePagerActivity extends FragmentActivity { private static final int NUM_PAGES = 2; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); mPager = (ViewPager) findViewById(R.id.pager); mPagerAdapter = new ScreenSlidePagerAdapter(getSupportFragmentManager()); mPager.setAdapter(mPagerAdapter); } private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter { public ScreenSlidePagerAdapter(FragmentManager fm) { super(fm); } @Override public Fragment getItem(int position) { return new ScreenSlidePageFragment(); } @Override public int getCount() { return NUM_PAGES; } } } </code></pre> <p>and in the activity_main.xml layout, I have replaced the out &amp; type fields with a ViewPager:</p> <p><strong>Part of activity_main.xml</strong></p> <pre><code>&lt;android.support.v4.view.ViewPager xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/pager" android:layout_width="match_parent" android:layout_height="match_parent" /&gt; </code></pre> <p>When called, it loads this class and displays the information using my result_slider layout:</p> <p><strong>ScreenSlidePageFragment.java</strong></p> <pre><code>public class ScreenSlidePageFragment extends Fragment { @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { ViewGroup rootView = (ViewGroup) inflater.inflate( R.layout.result_slider, container, false); return rootView; } } </code></pre> <p><strong>result_slider.xml</strong></p> <pre><code>&lt;com.example.temperatureconverter xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/content" android:layout_width="match_parent" android:layout_height="match_parent"&gt; &lt;TextView style="?android:textAppearanceMedium" android:padding="16dp" android:lineSpacingMultiplier="1.2" android:layout_width="match_parent" android:layout_height="wrap_content" android:text="Hello World" /&gt; &lt;/com.example.temperatureconverter&gt; </code></pre> <p>How can I go about passing the data from my results to a pane in the ViewPager? Using the code below, I don't get any errors, however the app crashes with <em>Error inflating class android.support.v4.view.ViewPager</em></p>
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    1. COHi, Could you please provide a full log of the crash?
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    2. COHi, log here: http://pastebin.com/kxecYpRg
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    3. COWhich ViewPager are you using, the one from the support library? What version of android are you building for?
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