title: How to Hide and Show Buttons on Alternate Touch Events
body: <p>My activity displays images and i want to display two buttons when the user touch the screen, and to disappear these button on next touch.</p>
  
  <p>My activity file ImageViewPager.java is as follows:</p>
  
  <pre><code>package com.pankajvatsa.testfeet;
  import java.util.ArrayList;
  import java.util.List;
  import android.app.Activity;
  import android.content.Intent;
  import android.os.Bundle;
  import android.support.v4.view.ViewPager;
  import android.view.MotionEvent;
  import android.view.View;
  import android.widget.Button;
  import android.widget.ImageView;
  import android.widget.RelativeLayout;
  
  public class ImageViewPager extends Activity {
  // Declare Variable
  int position;
  Button bWallpaperButton;
  Button bDownloadButton;
  RelativeLayout mainLay;
  int flagForButton = 0;
  
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      // Set title for the ViewPager
      setTitle("ViewPager");
      // Get the view from view_pager.xml
      setContentView(R.layout.activity_image_view_pager);
  
      mainLay = (RelativeLayout) findViewById(R.id.rl_view_pager);
      mainLay.setOnTouchListener(new View.OnTouchListener() {
  
          @Override
          public boolean onTouch(View v, MotionEvent event) {
              // TODO Auto-generated method stub
              if (event.getAction() == MotionEvent.ACTION_DOWN) {
                  bWallpaperButton.setVisibility(View.VISIBLE); 
                  bDownloadButton.setVisibility(View.VISIBLE);
                  return true;
              }
              if (event.getAction() == MotionEvent.ACTION_UP) {
                  bWallpaperButton.setVisibility(View.INVISIBLE); 
                  bDownloadButton.setVisibility(View.INVISIBLE);
                  return true;
              }
              return true;
          }
      });
  
      bWallpaperButton = (Button) findViewById(R.id.bSetWallpaper);
      bDownloadButton = (Button) findViewById(R.id.bSaveToGallery);
  
      // Retrieve data from MainActivity on item click event
      Intent p = getIntent();
      position = p.getExtras().getInt("id");
  
      ImageAdapter imageAdapter = new ImageAdapter(this);
      List&lt;ImageView&gt; images = new ArrayList&lt;ImageView&gt;();
  
      // Retrieve all the images
      for (int i = 0; i &lt; imageAdapter.getCount(); i++) {
          ImageView imageView = new ImageView(this);
          imageView.setImageResource(imageAdapter.mThumbIds[i]);
          imageView.setScaleType(ImageView.ScaleType.CENTER);
          images.add(imageView);
      }
  
      // Set the images into ViewPager
      ImagePagerAdapter pageradapter = new ImagePagerAdapter(images);
      ViewPager viewpager = (ViewPager) findViewById(R.id.image_pager);
      viewpager.setAdapter(pageradapter);
      // Show images following the position
      viewpager.setCurrentItem(position);
  }
  
  }
  </code></pre>
  
  <p>And my xml file is as follows:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:id="@+id/rl_view_pager"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:clickable="true"
  android:focusable="true"
  android:focusableInTouchMode="true" &gt;
  
  &lt;android.support.v4.view.ViewPager
      android:id="@+id/image_pager"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:clickable="true"
      android:focusable="true"
      android:focusableInTouchMode="true" &gt;
  &lt;/android.support.v4.view.ViewPager&gt;
  
  &lt;Button
      android:id="@+id/bSetWallpaper"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentBottom="true"
      android:layout_alignParentRight="true"
      android:text="@string/set_wallpaper"
      android:visibility="gone" /&gt;
  
  &lt;Button
      android:id="@+id/bSaveToGallery"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_alignParentBottom="true"
      android:layout_alignParentLeft="true"
      android:text="@string/save_local"
      android:visibility="gone" /&gt;
  &lt;/RelativeLayout&gt;
  </code></pre>