Android user interface-widget-gallery view Gallery

The gallery control of Android is a Good Graph Display Control, which greatly reduces developers' development of the Image view function and provides a more elegant effect.

 

/Chapter04_ui_gallery01/src/COM/Amaker/test/mainactivity. Java

Code

  Package  Com. Amaker. test;

  Import  Android. App. activity;
  Import  Android. content. context;
  Import Android. OS. Bundle;
  Import  Android. View. view;
  Import  Android. View. viewgroup;
  Import  Android. widget. baseadapter;
  Import  Android. widget. Gallery;
  Import  Android. widget. imageview;

  Public     Class  Mainactivity Extends  Activity {
  /**  Called when the activity is first created.  */  
@ Override
  //  Called at creation  
    Public     Void  Oncreate (bundle savedinstancestate ){
  Super . Oncreate (savedinstancestate );
Setcontentview (R. layout. Main );
Gallery g  =  (Gallery) findviewbyid (R. Id. gallery01 );

G. setadapter (  New  Myadapter (  This  ));
}

  Class  Myadapter  Extends  Baseadapter {
Context context;
Myadapter (context ){
  This  . Context =  Context;
}
  Private  Integer [] IMGs  = {
R. drawable. gallery_photo_1,
R. drawable. gallery_photo_2,
R. drawable. gallery_photo_3,
R. drawable. gallery_photo_4,
R. drawable. gallery_photo_5,
R. drawable. gallery_photo_6,
R. drawable. gallery_photo_7,
R. drawable. gallery_photo_8,

R. drawable. gallery_photo_1,
R. drawable. gallery_photo_2,
R. drawable. gallery_photo_3,
R. drawable. gallery_photo_4,
R. drawable. gallery_photo_5,
R. drawable. gallery_photo_6,
R. drawable. gallery_photo_7,
R. drawable. gallery_photo_8
};

  Public     Int Getcount (){
  Return  IMGs. length;
}

  Public  Object getitem (  Int  ITEM ){
  Return  Item;
}

  Public     Long  Getitemid (  Int  ID ){
  Return ID;
}

  Public  View getview (  Int  Position, view convertview, viewgroup parent ){
Imageview  =     New  Imageview (context );
Imageview. setimageresource (IMGs [position]);
Imageview. setscaletype (imageview. scaletype. fit_xy );
Imageview. setlayoutparams (  New  Gallery. layoutparams (  136 ,  88  ));

  Return  Imageview;
}

}
} 

/Chapter04_ui_gallery01/RES/layout/Main. xml

 

Code

  <?  XML version = "1.0" encoding = "UTF-8"  ?>  
  < Linearlayout  Xmlns: Android  = "Http://schemas.android.com/apk/res/android"  
Android: Orientation  = "Vertical"  
Android: layout_width  = "Fill_parent"  
Android: layout_height  = "Fill_parent"  
  >  

  <  Gallery
 Android: ID  = "@ + ID/gallery01"   
Android: layout_width  = "Wrap_content"   
Android: layout_height  = "Wrap_content"  >  
  </  Gallery  >  

  </  Linearlayout  >