更新有赚 Message 多行显示

@@ -59,6 +59,7 @@ export class MessageCell extends Component {
           />
           <Text
             style={styles.messageText}
+            numberOfLines={2}
            >{data.content}</Text>
            <Text
             style={styles.startTimeText}
@@ -92,7 +93,7 @@ let styles = StyleSheet.create({
     height: imageHeight
   },
   messageText: {
-    height: 20 * DEVICE_HEIGHT_RATIO,
+    width: '100%',
     fontFamily: 'PingFang-SC-Regular',
     fontSize: 14,
     color: '#444444',