ViewPagers have built-in swipe gestures to transition through pages, and they display screen slide animations by default.
PagerAdapters as a supply for new pages to display. I simply put the images to drawable folder and display on it ViewPager
Swipe Image Gallery By ViewPager:
First you need to create the PagerAdapter.
ImageAdapter.java
import android.content.Context;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageView;
public class ImageAdapter extends PagerAdapter {
Context context;
private int[] GalImages = new int[] {
R.drawable.a,
R.drawable.b,
R.drawable.c,
R.drawable.d,
R.drawable.e,
};
ImageAdapter(Context context){
this.context=context;
}
@Override
public int getCount() {
return GalImages.length;
}
@Override
public boolean isViewFromObject(View view, Object object) {
return view == ((ImageView) object);
}
@Override
public Object instantiateItem(ViewGroup container, int position) {
ImageView imageView = new ImageView(context);
//int padding = context.getResources().getDimensionPixelSize(R.dimen.padding_medium);
//imageView.setPadding(padding, padding, padding, padding);
//imageView.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
imageView.setImageResource(GalImages[position]);
((ViewPager) container).addView(imageView, 0);
return imageView;
}
@Override
public void destroyItem(ViewGroup container, int position, Object object) {
((ViewPager) container).removeView((ImageView) object);
}
}
Then create the xml file and add the ViewPager in layout.
<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"
tools:context=".MainActivity" >
<android.support.v4.view.ViewPager
android:id="@+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</RelativeLayout>
Then create main Activity and create the instance of ViewPager
import android.app.Activity;
import android.os.Bundle;
import android.support.v4.view.ViewPager;
public class MainActivity extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
ViewPager viewPager = (ViewPager) findViewById(R.id.view_pager);
ImageAdapter adapter = new ImageAdapter(this);
viewPager.setAdapter(adapter);
}
}
Stay Tune for next session happy coding :)
