MainActvity:
public class MainActivity extends AppCompatActivity {
private static int currentPage = 0;
private static int NUM_PAGES = 0;
CirclePageIndicator indicator;
int Imageitems[] = {R.drawable.hike, R.drawable.hike, R.drawable.hike};
final ArrayList<Integer> imageItems = new ArrayList<>();
ViewPager mPager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mPager = (ViewPager) findViewById(R.id.pager);
indicator = (CirclePageIndicator)
findViewById(R.id.indicator);
for (int i = 0; i < Imageitems.length; i++) {
imageItems.add(Imageitems[i]);
}
ImageSlider(imageItems);
}
private void ImageSlider(ArrayList<Integer> ImagesArray) {
mPager.setAdapter(new Item_SlidingImage_Adapter(this, ImagesArray));
indicator.setViewPager(mPager);
final float density = getResources().getDisplayMetrics().density;
indicator.setRadius(5 * density);
NUM_PAGES = ImagesArray.size();
// Auto start of viewpager
final Handler handler = new Handler();
final Runnable Update = new Runnable() {
public void run() {
if (currentPage == NUM_PAGES) {
currentPage = 0;
}
mPager.setCurrentItem(currentPage++, true);
}
};
Timer swipeTimer = new Timer();
swipeTimer.schedule(new TimerTask() {
@Override
public void run() {
handler.post(Update);
}
}, 3000, 3000);
// Pager listener over indicator
indicator.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
@Override
public void onPageSelected(int position) {
currentPage = position;
}
@Override
public void onPageScrolled(int pos, float arg1, int arg2) {
}
@Override
public void onPageScrollStateChanged(int pos) {
}
});
}
}
layout:
<?xml version="1.0" encoding="utf-8"?>
<layout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
tools:context=".MainActivity">
<data>
</data>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<RelativeLayout
android:id="@+id/relativelayout1"
android:layout_width="match_parent"
android:layout_height="150dp"
>
<android.support.v4.view.ViewPager
android:id="@+id/pager"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:addOnPageChangeListener="@{data.pageChangeListener}"
app:currentItem="@{data.currentPage}"
app:adapter="@{image_adapter}"
/>
<com.viewpagerindicator.CirclePageIndicator
android:id="@+id/indicator"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:padding="5dp"
app:centered="true"
app:fillColor="#ff0099"
app:pageColor="#FF0000"
app:radius="@{data.density}"
app:snap="false" />
</RelativeLayout>
</LinearLayout>
</layout>
adapter:
public class Item_SlidingImage_Adapter extends PagerAdapter {
private ArrayList<Integer> IMAGES;
private LayoutInflater inflater;
private Context context;
public Item_SlidingImage_Adapter(Context context, ArrayList<Integer> IMAGES) {
this.context = context;
this.IMAGES = IMAGES;
inflater = LayoutInflater.from(context);
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
@Override
public int getCount() {
return IMAGES.size();
}
@Override
public Object instantiateItem(ViewGroup view, final int position) {
View imageLayout = inflater.inflate(R.layout.slidingimages_layout, view, false);
assert imageLayout != null;
final ImageView imageView = (ImageView) imageLayout
.findViewById(R.id.image);
imageView.setImageResource(IMAGES.get(position));
view.addView(imageLayout, 0);
return imageLayout;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view.equals(object);
}
@Override
public void restoreState(Parcelable state, ClassLoader loader) {
}
@Override
public Parcelable saveState() {
return null;
}
}
item.xml
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:padding="1dip" >
<ImageView
android:id="@+id/image"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:adjustViewBounds="true"
android:layout_gravity="center"
android:scaleType="fitXY" />
</FrameLayout>
Using given code I am able to auto flip in ViewPager and also using manually with some delay. I have to convert same code using Databinding; I tried but I am not able to understand how to set adapter,currentitem, and on page change listener how I will set value in xml?
How can I convert existing code for databinding in Android?