Use of Android Imageswitcher and gallery

Android Imageswitcher and gallery can be used to make a similar slide effect, Imageswticher control function is used to display pictures and set pictures in and out of animation, popular point, Imageswitcher is a panel to display a specific picture (view), on this panel, you can set the picture into the time of the animation, as well as the animation when leaving, gallery is a container, used to store the imageswticher inside the specific image displayed.

Layout file:

<relativelayout xmlns:android= "Http://shemas.android.com/apk/res/android"

Android:layout_width= "Match_parent"

android:layout_hegiht= "Match_paernt" >

<imageswticher <! --Declare the Imageswitcher control, used to display the picture, a bit like a picture display--

Android:id= "@+id/imgs"

Android:layout_width= "Fill_parent"

android:layout_height= "Fill_parent"

Android:layout_alignparenttop= "true" <!--settings control and parent layout top and left face-up

Android:layout_alignparentleft= "true"/>

<gallery

Android:id= "@+id/gallery"

Android:layout_width= "Fill_parent"

android:layout_hegiht= "100DP"

Android:layout_alignparentbottom= "true" <!--set control and parent layout bottom and left align

Android:layout_alignparentleft= "true"

Android:gravity= "Center_vertical"

android:spacing= "6DP"/> <!--set the distance between each part of the container--

</RelativeLayout>

Introduction to Android Code:

public class Mainactivity extends Activity implements Android.widget.ViewSwitcher.ViewFactory, Android.widget.AdapterView.OnItemSelectedListener

{

Private Imageswitcher Imgswitcher;

Private Gallery Gallery;

Private Integer imgs[] ={r.drawable.a,r.drawable.b,r.drawable.c,r.drawable.d,r.drawabe.e,r.drawable.f, r.drawable.g};//here to add your own pictures

protected void OnCreate (Bundle savedinstancestate)

{

Super.oncreate (savedinstancestate);

Setcontentview (r.layout.mainlayout);//mainlayout for the layout file defined above

Imgswitcher = (imageswitcher) Findviewbyid (R.ID.IMGS);

Gallery = (gallery) Findviewbyid (r.id.gallery);

Imgswitcher.setinanimation (this,android. R.ANIM.FADE_IN);//Set Picture into animation

Imgswitcher.setoutanimation (this,android. R.anim.fade_out);//Set Picture exit animation

Imgswither.setfactory (this);//Set the View factory, do not know what this view factory is for! Seems to correspond with Makeview.

Galleryadapter adapter = new Galleryadaper (this);//This custom adapter is primarily used to set the data inside the gallery container

Gallery.setonitemselectedlistener (this);

Gallery.setadapter (adapter);

　　　　　　　　　　　　

}

@Override

public void onitemselected (adapterview<?> parent,view view,int position,int ID)

{

Imgswitcher.setimageresource (Imgs[position]);//According to the gallery choice, display the corresponding picture in the Imageswitcher

}

@Override

public void onnothingselected (adapterview<?> parent)

{

}

@Override

Public View Makeview ()

{

ImageView view = new ImageView (this);

View.setbackgroundcolor (0xff000000);

View.setlayoutparams (New Imageswitcher.layoutparams (layoutparams.fill_parent,layoutparams.fill_parent));

View.setscaletype (ImageSwitcher.ScaleType.FIT_CENTER);

return view;

}

Class Galleryadapter extends Baseadapter

{

Private context context;

Galleryadaper (Context c)

{

context = C;

}

public int GetCount ()

{

return imgs.length;

}

Public Object getItem (int position)

{

return imgs[position];

}

public long getitemid (int position)

{

return position;

}

Public View getView (int position,view view,viewgroup Groupview)

{

ImageView v = new ImageView (context);

V.setimageresource (Imgs[position]);

V.setadjustviewbounds (TRUE)//setting allows resizing of the picture, the reason for setting it is that the gallery height setting in the layout file is:

/*android:layout_height= "" 100dp*, this time using the image resource height can be larger or smaller, plus this attribute, you can let gallery automatically adjust the size of the picture/

V.setlayoutparams (New Gallery.layoutparams (layoutparams.wrap_content,layoutparams.wrap_content));

return v;

}

}

}

Use of Android Imageswitcher and gallery