Android uses Horizontalscrollview for gallery effects

　　Gallery (gallery) is a lock center entry and has a horizontal scrolling list of views, generally used to browse the picture, and can respond to event display information,Gallery can also be used in conjunction with the Imageswitcher component to achieve a thumbnail view of the effect of the picture;

But gallery was discarded by Google, Google recommended the use of Viewpager and Horizontalscrollview to achieve gallery effect;

See an example: Using Gallery to achieve:

Code:

Scrollview1.java

 PackageCom.xiaozhang.dialog;Importandroid.app.Activity;ImportAndroid.content.Context;ImportAndroid.os.Bundle;ImportAndroid.view.View;ImportAndroid.view.ViewGroup;ImportAndroid.widget.AdapterView;ImportAndroid.widget.AdapterView.OnItemClickListener;ImportAndroid.widget.BaseAdapter;ImportAndroid.widget.Gallery;ImportAndroid.widget.ImageView;ImportAndroid.widget.Toast; Public classScrollView1extendsActivity {PrivateGallery Gallery; @Override Public voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Setcontentview (R.layout.view); Gallery=(Gallery) Findviewbyid (r.id.gallery); //setting up a picture adapterGallery.setadapter (NewImageadapter ( This)); //Setting up ListenersGallery.setonitemclicklistener (NewOnitemclicklistener () {@Override Public voidOnitemclick (adapterview<?>Parent, View V,intPositionLongID) {toast.maketext (ScrollView1. This,                        "Clicked" + (position + 1) + "picture", Toast.length_long). Show ();    }        }); }}classImageadapterextendsBaseadapter {//declaring context    Privatecontext Context; //Image source Array    Privateinteger[] Imageinteger ={r.drawable.pic1, R.drawable.pic2, R.DRAWABLE.PIC3, R.drawable.pic4, R.drawable.pic5, R.DRAWABLE.PIC6,    R.DRAWABLE.PIC7}; //Statement Imageadapter     PublicImageadapter (context C) {context=C; } @Override//get the number of pictures     Public intGetCount () {returnimageinteger.length; } @Override//get the position of the picture in the library     PublicObject GetItem (intposition) {        returnposition; } @Override//get the position of the picture in the library     Public LongGetitemid (intposition) {        returnposition; } @Override PublicView GetView (intposition, View Convertview, ViewGroup parent) {ImageView ImageView=NewImageView (context); //setting up resources for ImageViewImageview.setimageresource (imageinteger[position]); //Set Scale typeImageview.setscaletype (ImageView.ScaleType.CENTER); Imageview.setlayoutparams (NewGallery.layoutparams (350, 350)); returnImageView; }}

View.xml

<?XML version= "1.0" encoding= "Utf-8"?><Galleryxmlns:android= "Http://schemas.android.com/apk/res/android"Android:id= "@+id/gallery"Android:layout_width= "Match_parent"Android:layout_height= "Wrap_content"Android:background= "? Android:galleryitembackground"android:spacing= "10DP"    />

Use Horizontalscrollview to achieve:

Mainactivity.java

 Packagecom.xiaozhang.horizontal;Importandroid.app.Activity;ImportAndroid.os.Bundle;ImportAndroid.view.LayoutInflater;ImportAndroid.view.View;ImportAndroid.view.Window;ImportAndroid.widget.ImageView;Importandroid.widget.LinearLayout;ImportAndroid.widget.TextView; Public classMainactivityextendsActivity {PrivateLinearLayout MGallery; Private int[] imgid; PrivateLayoutinflater Minflater; @Overrideprotected voidonCreate (Bundle savedinstancestate) {Super. OnCreate (savedinstancestate);        Requestwindowfeature (Window.feature_no_title);        Setcontentview (R.layout.activity_main); Minflater= Layoutinflater.from ( This); Imgid=New int[] {r.drawable.pic1, r.drawable.pic2, R.DRAWABLE.PIC3, R.drawable.pic4, R.DRAWABLE.PIC5, R.drawable.pi        C6, R.drawable.pic7, R.drawable.pic8, r.drawable.pic9};    Initview (); }    Private voidInitview () {mgallery=(LinearLayout) Findviewbyid (r.id.gallery_id);  for(inti = 0; i < imgid.length; i++) {View View= Minflater.inflate (R.layout.gallery, MGallery,false); ImageView img=(ImageView) View.findviewbyid (r.id.gallery_image);            Img.setimageresource (Imgid[i]); TextView txt=(TextView) View.findviewbyid (R.id.gallery_text); Txt.settext ("Some info");        Mgallery.addview (view); }    }}

Activity_main.xml

<LinearLayoutxmlns: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" >    <HorizontalscrollviewAndroid:layout_width= "Wrap_content"Android:layout_height= "260DP"android:layout_gravity= "Center_vertical"Android:background= "#AA4444"Android:scrollbars= "None" >        <LinearLayoutAndroid:id= "@+id/gallery_id"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"android:layout_gravity= "Center_vertical"android:orientation= "Horizontal" >        </LinearLayout>    </Horizontalscrollview></LinearLayout>

Gallery.xml

<?XML version= "1.0" encoding= "Utf-8"?><Relativelayoutxmlns:android= "Http://schemas.android.com/apk/res/android"Android:layout_width= "240DP"Android:layout_height= "240DP"Android:background= "@android: Color/white" >    <ImageViewAndroid:id= "@+id/gallery_image"Android:layout_width= "180DP"Android:layout_height= "180DP"Android:layout_alignparenttop= "true"Android:layout_centerhorizontal= "true"Android:layout_margin= "5DP"Android:scaletype= "Centercrop" />    <TextViewAndroid:id= "@+id/gallery_text"Android:layout_width= "Wrap_content"Android:layout_height= "Wrap_content"Android:layout_below= "@id/gallery_image"Android:layout_centerhorizontal= "true"Android:layout_marginbottom= "5DP"Android:layout_margintop= "5DP"Android:textcolor= "#ff0000"android:textsize= "25SP" /></Relativelayout>

Android uses Horizontalscrollview for gallery effects