title: Fixed bottom full width position buttons react native
body: <p>I want to create instagram like app at ios on react native. 
  I setted a listview with pics and three buttons:</p>
  
  <pre><code>&lt;View&gt;
     &lt;ListView contentContainerStyle={styles.list}
               dataSource={this.state.dataSource}
               renderRow={(rowData) =&gt; &lt;TouchableHighlight onPress={(() =&gt; this.openProjectCard(rowData.cards_id, rowData.area_all))}&gt;
                   &lt;Image style={styles.item}
                          source={{uri: `http://romangjx.bget.ru/rubkoff_pics/p${rowData.code}/main/main.jpg`}}/&gt;
               &lt;/TouchableHighlight&gt;}
               initialListSize={15}/&gt;
     &lt;View style={styles.bottomBar}&gt;
         &lt;Text
             style={styles.marginHorizontal}
             onPress={this.showBelow100}
             color='#841584'&gt;
             {(() =&gt; this.sup('&lt;100м', '2'))()}
         &lt;/Text&gt;
         &lt;Text
             style={styles.marginHorizontal}
             onPress={this.showBetween100And200}
             color='#841584'&gt;
             {(() =&gt; this.sup('100м-200м', '2'))()}
         &lt;/Text&gt;
         &lt;Text
             style={styles.marginHorizontal}
             onPress={this.showAbove200}
             color='#841584'&gt;
             {(() =&gt; this.sup('&gt;200м', '2'))()}
         &lt;/Text&gt;
     &lt;/View&gt;
  &lt;/View&gt;
  </code></pre>
  
  <p>there are styles :</p>
  
  <pre><code>t styles = StyleSheet.create({
     list: {
         justifyContent: 'center',
         flexDirection: 'row',
         flexWrap: 'wrap'
     },
     item: {
         backgroundColor: '#CCC',
         margin: 10,
         width: 100,
         height: 100
     },
     bottomBar: {
         flexDirection: 'row',
  
  
     },
     bottomButton: {
         flex: 1
     }
  });
  </code></pre>
  
  <p>I had experimented a lot with flex, flexDirection, but it was wrong for me..</p>
  
  <p>How can I positionate this buttons bottom fixed and make button bar full width, and three buttons inline? </p>