Android custom view pager for disabling default switch activity
Step 1.
PageViewActivity.java
import java.util.ArrayList;
import java.util.List;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.view.ViewPager.SimpleOnPageChangeListener;
import android.util.Log;
import android.view.View;
public class PageViewActivity extends FragmentActivity {
MyPageAdapter pageAdapter;
int pageId=0;
CustomViewPager pager;
PageListener pageListener;
int currentPage=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
List<Fragment> fragments = getFragments();
pageAdapter = new MyPageAdapter(getSupportFragmentManager(), fragments);
pager =(CustomViewPager)findViewById(R.id.viewpager);
pager.setAdapter(pageAdapter);
pager.setPagingEnabled(false);
pageListener = new PageListener();
pager.setOnPageChangeListener(pageListener);
}
private List<Fragment> getFragments(){
List<Fragment> fList = new ArrayList<Fragment>();
fList.add(MyFragment.newInstance("Fragment 1"));
fList.add(MyFragment.newInstance("Fragment 2"));
fList.add(MyFragment.newInstance("Fragment 3"));
return fList;
}
public void next(View v){
if(pageId<=2)
{
pager.setCurrentItem(pageId);
}
pageId++;
}
private class PageListener extends SimpleOnPageChangeListener{
public void onPageSelected(int position) {
Log.i("test", "onPageSelected " + position);
currentPage = position;
}
//Called when the scroll state changes.
public void onPageScrollStateChanged(int state)
{
}
public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels)
{
Log.i("test", "onPageScrolled " + position);
currentPage = position;
}
}
}
Step 2.
MyPageAdapter .java
import java.util.List;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentPagerAdapter;
class MyPageAdapter extends FragmentPagerAdapter {
private List<Fragment> fragments;
public MyPageAdapter(FragmentManager fm, List<Fragment> fragments) {
super(fm);
this.fragments = fragments;
}
@Override
public Fragment getItem(int position) {
return this.fragments.get(position);
}
@Override
public int getCount() {
return this.fragments.size();
}
}
Step 3.
MyFragment.java
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;
public class MyFragment extends Fragment {
public static final String EXTRA_MESSAGE = "EXTRA_MESSAGE";
public static final MyFragment newInstance(String message)
{
MyFragment f = new MyFragment();
Bundle bdl = new Bundle(1);
bdl.putString(EXTRA_MESSAGE, message);
f.setArguments(bdl);
return f;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
String message = getArguments().getString(EXTRA_MESSAGE);
View v = inflater.inflate(R.layout.myfragment_layout, container, false);
TextView messageTextView = (TextView)v.findViewById(R.id.textView);
messageTextView.setText(message);
return v;
}
}
Step 4.
CustomViewPager.java
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
public class CustomViewPager extends android.support.v4.view.ViewPager {
private boolean enabled;
public CustomViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
this.enabled = true;
}
@Override
public boolean onTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onTouchEvent(event);
}
return false;
}
@Override
public boolean onInterceptTouchEvent(MotionEvent event) {
if (this.enabled) {
return super.onInterceptTouchEvent(event);
}
return false;
}
/**
* Custom implementation to enable or not swipe :)
*
* @param enabled
* true to enable swipe, false otherwise.
*/
public void setPagingEnabled(boolean enabled) {
this.enabled = enabled;
}
}
Step 5.
activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<com.example.viewpagerdemo.CustomViewPager
android:id="@+id/viewpager"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</RelativeLayout>
Step 6.
myfragment_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:id="@+id/textView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Next"
android:onClick="next"
/>
</RelativeLayout>
http://architects.dzone.com/articles/android-tutorial-using
http://blog.evoxmusic.fr/content/android-how-disable-viewpager-page-switch
