Basic tutorial for Android -- 2.4.9 basic usage of the GridView (grid view)

Basic tutorial for Android -- 2.4.9 basic usage of the GridView (grid view)
1. related attributes:

The following are some properties in the GridView:

Android: columnWidth: Set the column width Android: gravity: Component Method Android: horizontalSpacing: Horizontal distance of each cell Android: verticalSpacing: Vertical distance of each cell Android: numColumns: Set the number of Columns Android: stretchMode: Set the stretch mode. The optional values are as follows:
None: Do not stretch; SpacingWidth: Gap Between stretched Elements
ColumnWidth: Only stretch the table element itself
SpacingWidthUniform: Both pull element spacing and stretch the gap between them air strikes

2. Example:

The following is a simple example to familiarize yourself with the use of this control:
(The Adapter used here is a reusable BaseAdapter that we can use in 2.4.7 to teach you how to write ~)

Implemented:

Code Implementation:

The first is the layout of the items in the GridView:Item_grid_icon.xml:

Then we write an entity object class:Icon. java:

/** * Created by Jay on 2015/9/24 0024. */public class Icon {    private int iId;    private String iName;    public Icon() {    }    public Icon(int iId, String iName) {        this.iId = iId;        this.iName = iName;    }    public int getiId() {        return iId;    }    public String getiName() {        return iName;    }    public void setiId(int iId) {        this.iId = iId;    }    public void setiName(String iName) {        this.iName = iName;    }}

The layout of MainActivity and Java code

Activity_main.xml:

MainActivity. java:

Public class MainActivity extends AppCompatActivity {private Context mContext; private GridView grid_photo; private BaseAdapter mAdapter = null; private ArrayList
  
   
MData = null; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); mContext = MainActivity. this; grid_photo = (GridView) findViewById (R. id. grid_photo); mData = new ArrayList
   
    
(); MData. add (new Icon (R. mipmap. iv_icon_1, icon 1); mData. add (new Icon (R. mipmap. iv_icon_2, Icon 2); mData. add (new Icon (R. mipmap. iv_icon_3, icon 3); mData. add (new Icon (R. mipmap. iv_icon_4, icon 4); mData. add (new Icon (R. mipmap. iv_icon_5, icon 5); mData. add (new Icon (R. mipmap. iv_icon_6, icon 6); mData. add (new Icon (R. mipmap. iv_icon_7, icon 7); mAdapter = new MyAdapter
    
     
(MData, R. layout. item_grid_icon) {@ Override public void bindView (ViewHolder holder, Icon obj) {holder. setImageResource (R. id. img_icon, obj. getiId (); holder.setText(R.id.txt _ icon, obj. getiName () ;}}; grid_photo.setAdapter (mAdapter); grid_photo.setOnItemClickListener (new AdapterView. onItemClickListener () {@ Override public void onItemClick (AdapterView
     Parent, View view, int position, long id) {Toast. makeText (mContext, you have clicked ~ + Position ++ ~ Item, Toast. LENGTH_SHORT). show ();}});}}
    
   
  

Well, the code is very simple ~

  Summary:

This section introduces the second UI control to use Adapter-grid view GridView, which is easy to use ~
You can scale it according to your needs, for example, using the GridView to display mobile album ~ Well, that's all,
Thank you ~