title: Android app empty
body: <p>If you guys need to see code for this one, if it's not something obvious, let me know, I posted waaaaay too much code on my last question apparently. I have been developing and android app in eclipse, and when run, below the title, my app is empty. Nothing but white space, none of my controls/UI are visible.</p>
  
  <p>Main.xml</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;ScrollView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"&gt;
  &lt;RelativeLayout
   android:layout_width="fill_parent" 
   android:layout_height="wrap_content"
   android:padding="5dp"&gt;
   &lt;TextView
          android:id="@+id/textViewChan"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:text="@string/channel"/&gt;
  
   &lt;SeekBar
          android:id="@+id/seekBarChan"
          android:layout_below="@+id/textViewChan"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:max="4"
          android:paddingBottom="10dp" /&gt;
   &lt;Button
          android:id="@+id/btnChoose"
          android:layout_below="@+id/seekBarChan"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentLeft="true"
          android:text="@string/choose"/&gt;
   &lt;Button
          android:id="@+id/btnRandom"
          android:layout_below="@+id/btnChoose"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentLeft="true"
          android:text="@string/random"/&gt;
   &lt;TextView
          android:id="@+id/textViewRed"
          android:layout_below="@+id/btnRandom"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="10dp"
          android:text="@string/Red" /&gt;
      &lt;SeekBar
          android:id="@+id/seekBarRed"
          android:layout_below="@+id/textViewRed"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:max="255"
          android:paddingBottom="10dp" /&gt;
      &lt;TextView
          android:id="@+id/textViewGreen"
          android:layout_below="@+id/seekBarRed"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="10dp"
          android:text="@string/Green" /&gt;
      &lt;SeekBar
          android:id="@+id/seekBarGreen"
          android:layout_below="@+id/textViewGreen"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:max="255"
          android:paddingBottom="10dp" /&gt;
      &lt;TextView
          android:id="@+id/textViewBlue"
          android:layout_below="@+id/seekBarGreen"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="10dp"
          android:text="@string/Blue" /&gt;
      &lt;SeekBar
          android:id="@+id/seekBarBlue"
          android:layout_below="@+id/textViewBlue"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:max="255"
          android:paddingBottom="10dp" /&gt;
      &lt;Spinner
          android:id="@+id/spinnerMode"
          android:layout_below="@+id/seekBarBlue"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:entries="@array/mode_array"
          android:prompt="@string/mode_prompt" /&gt;
      &lt;TextView
          android:id="@+id/textViewSide"
          android:layout_below="@+id/spinnerMode"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="5dp"
          android:text="@string/side" /&gt;
  
        &lt;RadioButton
            android:id="@+id/radio0"
            android:layout_below="@+id/textViewSide"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_gravity="left"
            android:layout_marginLeft="10dp"
            android:checked="true"
            android:onClick="onRadioButtonClicked"
            android:text="@string/left" /&gt;
  
          &lt;RadioButton
              android:id="@+id/radio1"
              android:layout_below="@+id/textViewSide"
              android:layout_toRightOf="@+id/radio0"
              android:layout_width="wrap_content"
              android:layout_height="wrap_content"
              android:layout_gravity="right"
              android:onClick="onRadioButtonClicked"
              android:text="@string/right" /&gt;
          &lt;TextView
          android:id="@+id/textViewBand"
          android:layout_below="@+id/radio0"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="10dp"
          android:text="@string/band" /&gt;
          &lt;SeekBar
          android:id="@+id/seekBarBand"
          android:layout_below="@+id/textViewBand"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:max="5"
          android:paddingBottom="10dp" /&gt;
          &lt;TextView
          android:id="@+id/textViewSens"
          android:layout_below="@+id/seekBarBand"
          android:layout_width="wrap_content"
          android:layout_height="wrap_content"
          android:paddingLeft="5dp"
          android:paddingTop="10dp"
          android:text="@string/sens" /&gt;
          &lt;SeekBar
          android:id="@+id/seekBarSens"
          android:layout_below="@+id/textViewSens"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:max="255"
          android:paddingBottom="10dp" /&gt;
          &lt;Button
          android:id="@+id/btnApply"
          android:layout_below="@+id/seekBarSens"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentLeft="true"
          android:text="@string/apply"/&gt;
          &lt;Button
          android:id="@+id/btnSave"
          android:layout_below="@+id/btnApply"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"
          android:layout_alignParentRight="true"
          android:text="@string/save"/&gt;
  
  &lt;/RelativeLayout&gt;
  &lt;/ScrollView&gt;
  </code></pre>
  
  <p>The app is not complete, but I should be able to see my controls.</p>
  
  <p>MainActivity.java</p>
  
  <pre><code>package com.hyperspacemg.showstopper;
  
  import com.hyperspacemg.showstopper.ColorPickerDialog.OnColorChangedListener;
  
  import android.os.Bundle;
  import android.app.Activity;
  import android.content.SharedPreferences;
  import android.graphics.Color;
  import android.view.Menu;
  import android.view.View;
  import android.widget.RadioButton;
  import android.widget.SeekBar;
  import android.widget.SeekBar.OnSeekBarChangeListener;
  import android.widget.TextView;
  
  public class MainActivity extends Activity implements OnColorChangedListener
      {
      public static final String PREFS_NAME = "ShowStopperPrefsFile";
  
      SeekBar seekbarChan, seekbarRed, seekbarGreen, seekbarBlue, seekbarBand, seekbarSens;
      TextView valueChan, valueRed, valueGreen, valueBlue, side, valueBand, valueSens, valueSave;
      private static int Chan = 0;
      private static int Rset = 0;
      private static int Gset = 0;
      private static int Bset = 0;
      private static int Side = 0;
      private static int Band = 0;
      private static int Sens = 24;
      private static int Save = 0;
  
      String chanFinal = null;
      String redFinal = null;
      String greenFinal = null;
      String blueFinal = null;
      String modeFinal = null;
      String sideFinal = null;
      String bandFinal = null;
      String sensFinal = null;
      String saveFinal = null;
      String message = "&lt;HMG" + chanFinal + ":" + redFinal + ":" + greenFinal + ":" + blueFinal + ":" + modeFinal + ":" + sideFinal + ":" + bandFinal + ":" + sensFinal + ":" + saveFinal + "&gt;"; 
  
      public void MainActivity(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
  
          SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
  
          valueChan = (TextView) findViewById(R.id.textViewChan);
          seekbarChan = (SeekBar) findViewById(R.id.seekBarChan);
          valueRed = (TextView) findViewById(R.id.textViewRed);
          seekbarRed = (SeekBar) findViewById(R.id.seekBarRed);
          valueGreen = (TextView) findViewById(R.id.textViewGreen);
          seekbarGreen = (SeekBar) findViewById(R.id.seekBarGreen);
          valueBlue = (TextView) findViewById(R.id.textViewBlue);
          seekbarBlue = (SeekBar) findViewById(R.id.seekBarBlue);
          valueBand = (TextView) findViewById(R.id.textViewBand);
          seekbarBand = (SeekBar) findViewById(R.id.seekBarBand);
          valueSens = (TextView) findViewById(R.id.textViewSens);
          seekbarSens = (SeekBar) findViewById(R.id.seekBarSens);
  
          int sbar_chan_position = settings.getInt("seekbar_chan_pref", 0);
          seekbarChan.setProgress(sbar_chan_position);
          valueChan.setText("Channel: " + sbar_chan_position);
          Chan = sbar_chan_position;
  
          int sbar_red_position = settings.getInt("seekbar_red_pref", 0);
          seekbarRed.setProgress(sbar_red_position);
          valueRed.setText("Red: " + sbar_red_position);
          Rset = sbar_red_position;
  
          int sbar_green_position = settings.getInt("seekbar_green_pref", 0);
          seekbarGreen.setProgress(sbar_green_position);
          valueGreen.setText("Green: " + sbar_green_position);
          Gset = sbar_green_position;
  
          int sbar_blue_position = settings.getInt("seekbar_blue_pref", 0);
          seekbarBlue.setProgress(sbar_blue_position);
          valueBlue.setText("Blue: " + sbar_blue_position);
          Bset = sbar_blue_position;
  
          int sbar_band_position = settings.getInt("seekbar_band_pref", 0);
          seekbarBand.setProgress(sbar_band_position);
          valueBand.setText("Band: " + sbar_band_position);
          Band = sbar_band_position;
  
          int sbar_sens_position = settings.getInt("seekbar_sens_pref", 0);
          seekbarSens.setProgress(sbar_sens_position);
          valueSens.setText("Sensitivity: " + sbar_red_position);
          Sens = sbar_sens_position;
  
          seekbarChan.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                  valueChan.setText("Channel: " + progress);
  
                  Chan = progress;
  
  
                  String chanFinal = "" + Chan;
  
              }
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  seekbarRed.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                  valueRed.setText("Red: " + progress);
  
                  Rset = progress;
  
  
                  String redFinal = "" + Rset;
  
              }
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  seekbarGreen.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                  valueGreen.setText("Green: " + progress);
  
                  Gset = progress;
  
  
                  String greenFinal = "" + Gset;
  
              }
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  seekbarBlue.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                  valueBlue.setText("Blue: " + progress);
  
                  Bset = progress;
  
  
                  String blueFinal = "" + Bset;
  
              }
  
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  seekbarBand.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                      String audB = null;
                      switch(progress)
                      {
                      case 0:
                      audB = "63Hz";
                      break;
                      case 1:
                      audB = "160Hz";
                      break;
                      case 2:
                      audB = "400Hz";
                      break;
                      case 3:
                      audB = "1kHz";
                      break;
                      case 4:
                      audB = "2.5kHz";
                      break;
                      case 5:
                      audB = "6.25kHz";
                      break;
                      case 6:
                      audB = "16kHz";
                      break;
                      }
                  valueBand.setText("Band: " + audB);
  
                  Band = progress;
  
  
                  String bandFinal = "" + Band;
  
              }
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  seekbarSens.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
              public void onProgressChanged(SeekBar seekBar, int progress,
                      boolean fromUser) {
                      int sensitivity = progress + 1;
                  valueSens.setText("Sensitivity: " + sensitivity);
  
                  Sens = progress;
  
  
                  String sensFinal = "" + Sens;
  
              }
  
              public void onStartTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
  
              public void onStopTrackingTouch(SeekBar seekBar) {
                  // TODO Auto-generated method stub
              }
          });
  
  
  
  
  
  
  
  
  
  
      }
  
      @Override
      public boolean onCreateOptionsMenu(Menu menu) {
          getMenuInflater().inflate(R.menu.activity_main, menu);
          return true;
      }
  
      public void colorChanged(int color) {
  
          int sbar_red_position = Color.red(color);
          int sbar_green_position = Color.green(color);
          int sbar_blue_position = Color.blue(color);
  
          seekbarRed.setProgress(sbar_red_position);
          valueRed.setText("Red: " + sbar_red_position);
          Rset = sbar_red_position;
  
          seekbarGreen.setProgress(sbar_green_position);
          valueGreen.setText("Green: " + sbar_green_position);
          Gset = sbar_green_position;
  
          seekbarBlue.setProgress(sbar_blue_position);
          valueBlue.setText("Blue: " + sbar_blue_position);
          Bset = sbar_blue_position;
  
      }
  
      @Override
      public void onStart() {
          super.onStart();
          }
  
      @Override
      public void onResume() {
          super.onResume();
      }
  
      @Override
      public void onPause() {
          super.onPause();
          SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
          SharedPreferences.Editor editor = settings.edit();
          editor.putInt("seekbar_red_pref", Rset);
          editor.putInt("seekbar_green_pref", Gset);
          editor.putInt("seekbar_blue_pref", Bset);
          editor.commit();
      }
  
      @Override
      public void onStop() {
          super.onStop();
      }
  
      @Override
      public void onDestroy() {
          super.onDestroy();
      }
  
      public void onClickColorPicker(View v) {
          new ColorPickerDialog(this, this, Color.rgb(Rset, Gset, Bset)).show();
      }
  
      public void onRadioButtonClicked(View v) {
          // When radio button is clicked
  
          // dumb stuff to make these radio group
          RadioButton rb = (RadioButton) v;
  
          RadioButton rb0 = (RadioButton) findViewById(R.id.radio0);
          RadioButton rb1 = (RadioButton) findViewById(R.id.radio1);
  
          rb0.setChecked(false);
          rb1.setChecked(false);
          rb.setChecked(true);
          // end dumb stuff
  
          int checkedRadioButton = rb.getId();
  
          String radioButtonSelected = "";
  
          switch (checkedRadioButton) {
          case R.id.radio0:
              radioButtonSelected = "0";
              break;
          case R.id.radio1:
              radioButtonSelected = "1";
              break;
          }
          String audS = radioButtonSelected;
      }
  
  
  }
  </code></pre>