Use of the Spinner, GridView, and Gallery controls

In the previous article, we only introduced one of AdapterView's ListView. In this article, I will explain and explain the other three.

1. Spinner drop-down list)

1) MainActivity. java

Package com. example. l026_adapterview_other1; import android. app. activity; import android. OS. bundle; import android. widget. arrayAdapter; import android. widget. spinner; public class MainActivity extends Activity {private Spinner sp; private ArrayAdapter aAdapter; private String datas [] = {"standard mode", "mute mode", "vibration mode ", "Custom mode" };@ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); sp = (Spinner) findViewById (R. id. spinner1); aAdapter = new ArrayAdapter <String> (this, android. r. layout. simple_spinner_item, datas); sp. setAdapter (aAdapter );}}

2) activity_main.xml

<LinearLayout 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"    android:orientation="vertical"    tools:context=".MainActivity" >    <Spinner        android:id="@+id/spinner1"        android:layout_width="match_parent"        android:layout_height="wrap_content" />                                                                                                 </LinearLayout>

3) Running Effect

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/105934BT-0.jpg "title =" Capture. JPG "/>

Click the drop-down list:

650) this. width = 650; "src =" http://www.bkjia.com/uploads/allimg/131228/1059345013-1.jpg "title =" Capture 1.JPG"/>

2. GridView mesh)

1) MainActivity. java

package com.example.l027_adapterview_other2;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.widget.GridView;import android.widget.SimpleAdapter;public class MainActivity extends Activity {    private GridView gv;    private SimpleAdapter sAdapter;    private int[] image={R.drawable.dice_1,R.drawable.dice_2,            R.drawable.dice_3,R.drawable.dice_4,R.drawable.dice_5,            R.drawable.dice_6,R.drawable.dice_action_0,R.drawable.dice_action_1,            R.drawable.dice_action_2,R.drawable.dice_action_3,R.drawable.icon_002,            R.drawable.icon_007,R.drawable.icon_010,R.drawable.icon_012,            R.drawable.icon_012,R.drawable.icon_013,R.drawable.icon_018,            R.drawable.icon_019,R.drawable.icon_019_cover,R.drawable.icon_020,            R.drawable.icon_021,R.drawable.icon_021_cover,R.drawable.icon_022_cover,            R.drawable.icon_022,R.drawable.icon_024,R.drawable.icon_024_cover,            R.drawable.icon_027,R.drawable.icon_027_cover,R.drawable.icon_029,            R.drawable.icon_029_cover,R.drawable.icon_030,R.drawable.icon_030_cover,            R.drawable.icon_035,R.drawable.icon_035_cover,R.drawable.icon_040,            R.drawable.icon_040_cover};    private String[] name={""};    private List<Map<String,Object>> lists;    private Map<String,Object> maps;                                                                    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        gv=(GridView)findViewById(R.id.gridView1);        lists=new ArrayList<Map<String,Object>>();        for(int i=0;i<image.length;i++){            maps=new HashMap<String,Object>();            maps.put("image", image[i]);            lists.add(maps);        }        sAdapter=new SimpleAdapter(this, lists, R.layout.cell,                new String[]{"image"}, new int[]{R.id.iv});        gv.setAdapter(sAdapter);    }}

2) MyAdapter. java

package com.example.l027_adapterview_other2;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.Gallery.LayoutParams;import android.widget.ImageView;public class MyAdapter extends BaseAdapter{    private Context context;    private int image[]={};    public MyAdapter(Context context,int[] image){        this.context=context;        this.image=image;    }                                                                 @Override    public int getCount() {        return this.image.length;    }    @Override    public Object getItem(int position) {        return this.image[position];    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ImageView iv=new ImageView(context);        iv.setBackgroundResource(image[position]);        iv.setLayoutParams(new Gallery.LayoutParams(LayoutParams.FILL_PARENT,                LayoutParams.FILL_PARENT));        return iv;    }}

3. Gallery

1) MainActivity. java

Package com. example. l028_adapterview_gallery; import android. app. activity; import android. OS. bundle; import android. view. view; import android. widget. adapterView; import android. widget. adapterView. onItemClickListener; import android. widget. gallery; import android. widget. toast; public class MainActivity extends Activity {private Gallery gy; private MyAdapter mAdapter; private int [] image = {R. drawable. c0, R. d Rawable. c1, R. drawable. c2, R. drawable. c3, R. drawable. c4, R. drawable. c5, R. drawable. c6, R. drawable. c7, R. drawable. c8, R. drawable. c9, R. drawable. c10, R. drawable. c11, R. drawable. c12, R. drawable. c13, R. drawable. c14, R. drawable. c5}; @ Override protected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. activity_main); gy = (Gallery) findViewById (R. id. gallery_main ); MAdapter = new MyAdapter (this, image); gy. setAdapter (mAdapter); gy. setOnItemClickListener (new OnItemClickListener () {@ Override public void onItemClick (AdapterView <?> Parent, View view, int position, long id) {Toast. makeText (MainActivity. this, "already set as Wallpaper", Toast. LENGTH_SHORT ). show ();}});}}

2) MyAdapter. java

package com.example.l028_adapterview_gallery;import android.content.Context;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.Gallery.LayoutParams;import android.widget.ImageView;public class MyAdapter extends BaseAdapter{    private Context context;    private int image[]={};    public MyAdapter(Context context,int[] image){        this.context=context;        this.image=image;    }          @Override    public int getCount() {        return this.image.length;    }    @Override    public Object getItem(int position) {        return this.image[position];    }    @Override    public long getItemId(int position) {        return position;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        ImageView iv=new ImageView(context);        iv.setBackgroundResource(image[position]);        iv.setLayoutParams(new Gallery.LayoutParams(LayoutParams.FILL_PARENT,                LayoutParams.FILL_PARENT));        return iv;    }}

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