[Android] 標準アイコンをGridViewで表示

アンドロイドには標準アイコンがあります。アイコン一覧から探せばわざわざアイコンを作ったりしなくてもいいのと、ユーザーからみてもアイコンにAndroidで共通の意味があれば便利です。
　

Android Studio
2021.2.1

Android標準アイコン

標準アイコンを使うメリットは、Androidアプリとして標準的なアイコンを提示することにより、ユーザーが暗黙的に意味を素早く理解できることです。
　
またアイコンリストは結構たくさんあるのでGirdViewで表示できるようにしてみました。
　

目次
1. 標準アイコンの呼び出し
2. GridView で一覧表示
3. サンプル動画
4. android icon 一覧

標準アイコンの呼び出し

画像を用意しませんが、それぞれ特別な呼び出しをします。
javaコードで記述する場合： android.R.drawable.XXX

image.setImageResource(android.R.drawable.ic_input_add);

1	image.setImageResource(android.R.drawable.ic_input_add);

　
xmlレイアウトに記述する場合：

android:src="@android:drawable/alert_dark_frame"

1	android:src="@android:drawable/alert_dark_frame"

　
まとめるとこうなります。
MainActivity.java

import android.app.Activity;
import android.os.Bundle;
import android.widget.ImageView;

public class MainActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        // コードで指定する場合
        ImageView image = findViewById(R.id.icon_1);
        image.setImageResource(android.R.drawable.ic_input_add);
    }
}

import android.app.Activity;

import android.os.Bundle;

import android.widget.ImageView;

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

// コードで指定する場合

ImageView image = findViewById(R.id.icon_1);

image.setImageResource(android.R.drawable.ic_input_add);

}

　
レイアウトです
activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:gravity="center"
    tools:context=".MainActivity">

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        android:src="@android:drawable/alert_dark_frame" />

    <ImageView android:id="@+id/icon_1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<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"

android:gravity="center"

tools:context=".MainActivity">

<ImageView

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="10dp"

android:src="@android:drawable/alert_dark_frame" />

<ImageView android:id="@+id/icon_1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_margin="10dp" />

</LinearLayout>

　

　
このようになりました。
　

GridView で一覧表示

　R.Drawable

にあるアイコンをリストアップしたアプリを作ってみましょう。
アイコンなのでGridViewがいいでしょう。またアイコンをタップすると名前が表示されるように設計してみます。
　
アイコンの数が多いので、クラスに入れてみました。わかりやすくするために最初の24個のみを記述してみます。
　
IconList.java

//package your.package.name;

class IconList {

    private final String[] iListName = {
            "alert_dark_frame", "alert_light_frame", "arrow_down_float",
            "arrow_up_float", "bottom_bar", "btn_default", "btn_default_small",
            "btn_dialog", "btn_dropdown", "btn_minus",
            "btn_plus", "btn_radio", "btn_star",
            "btn_star_big_off", "btn_star_big_on", "button_onoff_indicator_off",
            "button_onoff_indicator_on", "checkbox_off_background", "checkbox_on_background",
            "dark_header", "dialog_frame", "dialog_holo_dark_frame",
            "dialog_holo_light_frame", "divider_horizontal_bright",
    };

    private final Integer[] iList = {
            android.R.drawable.alert_dark_frame
            ,android.R.drawable.alert_light_frame
            ,android.R.drawable.arrow_down_float
            ,android.R.drawable.arrow_up_float
            ,android.R.drawable.bottom_bar
            ,android.R.drawable.btn_default
            ,android.R.drawable.btn_default_small
            ,android.R.drawable.btn_dialog
            ,android.R.drawable.btn_dropdown
            ,android.R.drawable.btn_minus
            ,android.R.drawable.btn_plus
            ,android.R.drawable.btn_radio
            ,android.R.drawable.btn_star
            ,android.R.drawable.btn_star_big_off
            ,android.R.drawable.btn_star_big_on
            ,android.R.drawable.button_onoff_indicator_off
            ,android.R.drawable.button_onoff_indicator_on
            ,android.R.drawable.checkbox_off_background
            ,android.R.drawable.checkbox_on_background
            ,android.R.drawable.dark_header
            ,android.R.drawable.dialog_frame
            ,android.R.drawable.dialog_holo_dark_frame
            ,android.R.drawable.dialog_holo_light_frame
            ,android.R.drawable.divider_horizontal_bright
    };

    IconList(){
    }

    int maxNum(){
        return iList.length;
    }

    String getName(int number){
        return iListName[number];
    }

    int getIcon(int number){
        return iList[number];
    }
}

//package your.package.name;

class IconList {

private final String[] iListName = {

"alert_dark_frame", "alert_light_frame", "arrow_down_float",

"arrow_up_float", "bottom_bar", "btn_default", "btn_default_small",

"btn_dialog", "btn_dropdown", "btn_minus",

"btn_plus", "btn_radio", "btn_star",

"btn_star_big_off", "btn_star_big_on", "button_onoff_indicator_off",

"button_onoff_indicator_on", "checkbox_off_background", "checkbox_on_background",

"dark_header", "dialog_frame", "dialog_holo_dark_frame",

"dialog_holo_light_frame", "divider_horizontal_bright",

};

private final Integer[] iList = {

android.R.drawable.alert_dark_frame

,android.R.drawable.alert_light_frame

,android.R.drawable.arrow_down_float

,android.R.drawable.arrow_up_float

,android.R.drawable.bottom_bar

,android.R.drawable.btn_default

,android.R.drawable.btn_default_small

,android.R.drawable.btn_dialog

,android.R.drawable.btn_dropdown

,android.R.drawable.btn_minus

,android.R.drawable.btn_plus

,android.R.drawable.btn_radio

,android.R.drawable.btn_star

,android.R.drawable.btn_star_big_off

,android.R.drawable.btn_star_big_on

,android.R.drawable.button_onoff_indicator_off

,android.R.drawable.button_onoff_indicator_on

,android.R.drawable.checkbox_off_background

,android.R.drawable.checkbox_on_background

,android.R.drawable.dark_header

,android.R.drawable.dialog_frame

,android.R.drawable.dialog_holo_dark_frame

,android.R.drawable.dialog_holo_light_frame

,android.R.drawable.divider_horizontal_bright

};

IconList(){

}

int maxNum(){

return iList.length;

}

String getName(int number){

return iListName[number];

}

int getIcon(int number){

return iList[number];

}

　
MainActivity.java

//package your.package.name;

import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import java.util.ArrayList;
import java.util.List;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity
        implements AdapterView.OnItemClickListener {

    private IconList il;
    // 要素をArrayListで設定
    private final List iconList = new ArrayList<>();
    private TextView textView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        il = new IconList();
        for (int i = 0; i < il.maxNum() ; i++){
            iconList.add(il.getIcon(i));
        }

        // GridViewのインスタンスを生成
        GridView gridview = findViewById(R.id.gridview);

        // BaseAdapter を継承したGridAdapterのインスタンスを生成
        GridAdapter adapter = new GridAdapter(this.getApplicationContext(),
                R.layout.grid_items,

                iconList);

        // gridViewにadapterをセット
        gridview.setAdapter(adapter);

        // item clickのListenerをセット
        gridview.setOnItemClickListener(this);

        textView = (TextView)findViewById(R.id.text_view);
    }

    static class ViewHolder {
        ImageView imageView;
    }

    // BaseAdapter を継承した GridAdapter クラスのインスタンス生成
    class GridAdapter extends BaseAdapter{
        private final LayoutInflater inflater;
        private final int layoutId;
        private final List icList;

        GridAdapter(Context context, int layoutId, List iconList) {
            super();
            this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            this.layoutId = layoutId;
            icList = iconList;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            ViewHolder holder;
            if (convertView == null) {
                // main.xml の  に grid_items.xml を inflate して convertView とする
                convertView = inflater.inflate(layoutId, parent, false);
                // ViewHolder を生成
                holder = new ViewHolder();
                holder.imageView = (ImageView) convertView.findViewById(R.id.image_view);
                convertView.setTag(holder);
            }
            else {
                holder = (ViewHolder) convertView.getTag();
            }

            holder.imageView.setImageResource(icList.get(position));

            return convertView;
        }

        @Override
        public int getCount() {
            // 全要素数を返す
            return iconList.size();
        }

        @Override
        public Object getItem(int position) {
            return null;
        }

        @Override
        public long getItemId(int position) {
            return 0;
        }
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View v, int position, long id) {
        // アイコンタップでTextViewにその名前をひょうじする
        textView.setText(il.getName(position));
    }
}

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//package your.package.name;

import androidx.appcompat.app.AppCompatActivity;

import android.os.Bundle;

import java.util.ArrayList;

import java.util.List;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.BaseAdapter;

import android.widget.GridView;

import android.widget.ImageView;

import android.widget.TextView;

public class MainActivity extends AppCompatActivity

implements AdapterView.OnItemClickListener {

private IconList il;

// 要素をArrayListで設定

private final List iconList = new ArrayList<>();

private TextView textView;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

il = new IconList();

for (int i = 0; i < il.maxNum() ; i++){

iconList.add(il.getIcon(i));

}

// GridViewのインスタンスを生成

GridView gridview = findViewById(R.id.gridview);

// BaseAdapter を継承したGridAdapterのインスタンスを生成

GridAdapter adapter = new GridAdapter(this.getApplicationContext(),

R.layout.grid_items,

iconList);

// gridViewにadapterをセット

gridview.setAdapter(adapter);

// item clickのListenerをセット

gridview.setOnItemClickListener(this);

textView = (TextView)findViewById(R.id.text_view);

}

static class ViewHolder {

ImageView imageView;

}

// BaseAdapter を継承した GridAdapter クラスのインスタンス生成

class GridAdapter extends BaseAdapter{

private final LayoutInflater inflater;

private final int layoutId;

private final List icList;

GridAdapter(Context context, int layoutId, List iconList) {

super();

this.inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);

this.layoutId = layoutId;

icList = iconList;

}

@Override

public View getView(int position, View convertView, ViewGroup parent) {

ViewHolder holder;

if (convertView == null) {

// main.xml のに grid_items.xml を inflate して convertView とする

convertView = inflater.inflate(layoutId, parent, false);

// ViewHolder を生成

holder = new ViewHolder();

holder.imageView = (ImageView) convertView.findViewById(R.id.image_view);

convertView.setTag(holder);

}

else {

holder = (ViewHolder) convertView.getTag();

}

holder.imageView.setImageResource(icList.get(position));

return convertView;

}

@Override

public int getCount() {

// 全要素数を返す

return iconList.size();

}

@Override

public Object getItem(int position) {

return null;

}

@Override

public long getItemId(int position) {

return 0;

}

@Override

public void onItemClick(AdapterView<?> parent, View v, int position, long id) {

// アイコンタップでTextViewにその名前をひょうじする

textView.setText(il.getName(position));

}

　
activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<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"
    android:background="#888"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/text_view"
        android:textSize="30sp"
        android:textColor="#fff"
        android:layout_margin="20dp"
        android:gravity="center"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <GridView
        android:id="@+id/gridview"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:background="#888"
        android:horizontalSpacing="2dp"
        android:verticalSpacing="2dp"
        android:numColumns="4"
        android:stretchMode="columnWidth" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<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"

android:background="#888"

tools:context=".MainActivity">

<TextView

android:id="@+id/text_view"

android:textSize="30sp"

android:textColor="#fff"

android:layout_margin="20dp"

android:gravity="center"

android:layout_width="match_parent"

android:layout_height="wrap_content" />

<GridView

android:id="@+id/gridview"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:gravity="center"

android:background="#888"

android:horizontalSpacing="2dp"

android:verticalSpacing="2dp"

android:numColumns="4"

android:stretchMode="columnWidth" />

</LinearLayout>

　
grid_items.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:background="#afc"
    android:orientation="vertical"
    android:gravity="center"
    android:padding="3dp" >

    <ImageView
        android:id="@+id/image_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scaleType="fitCenter"
        android:contentDescription="@string/description" />

</LinearLayout>

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="100dp"

android:background="#afc"

android:orientation="vertical"

android:gravity="center"

android:padding="3dp" >

<ImageView

android:id="@+id/image_view"

android:layout_width="match_parent"

android:layout_height="match_parent"

android:scaleType="fitCenter"

android:contentDescription="@string/description" />

</LinearLayout>

　
strings.xml

<resources>
    <string name="app_name">YourAppName</string>
    <string name="description">icon</string>
</resources>

<string name="app_name">YourAppName</string>

</resources>

サンプル動画

android icon 一覧

全一覧を表示したい場合は以下の配列を使ってください。

標準アイコン

    private String[] iListName = {
            "alert_dark_frame",
            "alert_light_frame",
            "arrow_down_float",
            "arrow_up_float",
            "bottom_bar",
            "btn_default",
            "btn_default_small",
            "btn_dialog",
            "btn_dropdown",
            "btn_minus",
            "btn_plus",
            "btn_radio",
            "btn_star",
            "btn_star_big_off",
            "btn_star_big_on",
            "button_onoff_indicator_off",
            "button_onoff_indicator_on",
            "checkbox_off_background",
            "checkbox_on_background",
            "dark_header",
            "dialog_frame",
            "dialog_holo_dark_frame",
            "dialog_holo_light_frame",
            "divider_horizontal_bright",
            "divider_horizontal_dark",
            "divider_horizontal_dim_dark",
            "divider_horizontal_textfield",
            "edit_text",
            "editbox_background",
            "editbox_background_normal",
            "editbox_dropdown_dark_frame",
            "editbox_dropdown_light_frame",
            "gallery_thumb",
            "ic_btn_speak_now",
            "ic_delete",
            "ic_dialog_alert",
            "ic_dialog_dialer",
            "ic_dialog_email",
            "ic_dialog_info",
            "ic_dialog_map",
            "ic_input_add",
            "ic_input_delete",
            "ic_input_get",
            "ic_lock_idle_alarm",
            "ic_lock_idle_charging",
            "ic_lock_idle_lock",
            "ic_lock_idle_low_battery",
            "ic_lock_lock",
            "ic_lock_power_off",
            "ic_lock_silent_mode",
            "ic_lock_silent_mode_off",
            "ic_media_ff",
            "ic_media_next",
            "ic_media_pause",
            "ic_media_play",
            "ic_media_previous",
            "ic_media_rew",
            "ic_menu_add",
            "ic_menu_agenda",
            "ic_menu_always_landscape_portrait",
            "ic_menu_call",
            "ic_menu_camera",
            "ic_menu_close_clear_cancel",
            "ic_menu_compass",
            "ic_menu_crop",
            "ic_menu_day",
            "ic_menu_delete",
            "ic_menu_directions",
            "ic_menu_edit",
            "ic_menu_gallery",
            "ic_menu_help",
            "ic_menu_info_details",
            "ic_menu_manage",
            "ic_menu_mapmode",
            "ic_menu_month",
            "ic_menu_more",
            "ic_menu_my_calendar",
            "ic_menu_mylocation",
            "ic_menu_myplaces",
            "ic_menu_preferences",
            "ic_menu_recent_history",
            "ic_menu_report_image",
            "ic_menu_revert",
            "ic_menu_rotate",
            "ic_menu_save",
            "ic_menu_search",
            "ic_menu_send",
            "ic_menu_set_as",
            "ic_menu_share",
            "ic_menu_slideshow",
            "ic_menu_sort_alphabetically",
            "ic_menu_sort_by_size",
            "ic_menu_today",
            "ic_menu_upload",
            "ic_menu_upload_you_tube",
            "ic_menu_view",
            "ic_menu_week",
            "ic_menu_zoom",
            "ic_notification_clear_all",
            "ic_notification_overlay",
            "ic_partial_secure",
            "ic_popup_disk_full",
            "ic_popup_reminder",
            "ic_popup_sync",
            "ic_search_category_default",
            "ic_secure",
            "list_selector_background",
            "menu_frame",
            "menu_full_frame",
            "menuitem_background",
            "picture_frame",
            "presence_audio_away",
            "presence_audio_busy",
            "presence_audio_online",
            "presence_away",
            "presence_busy",
            "presence_invisible",
            "presence_offline",
            "presence_online",
            "presence_video_away",
            "presence_video_busy",
            "presence_video_online",
            "progress_horizontal",
            "progress_indeterminate_horizontal",
            "radiobutton_off_background",
            "radiobutton_on_background",
            "screen_background_dark",
            "screen_background_dark_transparent",
            "screen_background_light",
            "screen_background_light_transparent",
            "spinner_background",
            "spinner_dropdown_background",
            "star_big_off",
            "star_big_on",
            "star_off",
            "star_on",
            "stat_notify_call_mute",
            "stat_notify_chat",
            "stat_notify_error",
            "stat_notify_missed_call",
            "stat_notify_more",
            "stat_notify_sdcard",
            "stat_notify_sdcard_prepare",
            "stat_notify_sdcard_usb",
            "stat_notify_sync",
            "stat_notify_sync_noanim",
            "stat_notify_voicemail",
            "stat_sys_data_bluetooth",
            "stat_sys_download",
            "stat_sys_download_done",
            "stat_sys_headset",
            "stat_sys_phone_call",
            "stat_sys_phone_call_forward",
            "stat_sys_phone_call_on_hold",
            "stat_sys_speakerphone",
            "stat_sys_upload",
            "stat_sys_upload_done",
            "stat_sys_vp_phone_call",
            "stat_sys_vp_phone_call_on_hold",
            "stat_sys_warning",
            "status_bar_item_app_background",
            "status_bar_item_background",
            "sym_action_call",
            "sym_action_chat",
            "sym_action_email",
            "sym_call_incoming",
            "sym_call_missed",
            "sym_call_outgoing",
            "sym_contact_card",
            "sym_def_app_icon",
            "title_bar",
            "title_bar_tall",
            "toast_frame",
            "zoom_plate"
    };

    private Integer[] iList = {
            android.R.drawable.alert_dark_frame
            ,android.R.drawable.alert_light_frame
            ,android.R.drawable.arrow_down_float
            ,android.R.drawable.arrow_up_float
            ,android.R.drawable.bottom_bar
            ,android.R.drawable.btn_default
            ,android.R.drawable.btn_default_small
            ,android.R.drawable.btn_dialog
            ,android.R.drawable.btn_dropdown
            ,android.R.drawable.btn_minus
            ,android.R.drawable.btn_plus
            ,android.R.drawable.btn_radio
            ,android.R.drawable.btn_star
            ,android.R.drawable.btn_star_big_off
            ,android.R.drawable.btn_star_big_on
            ,android.R.drawable.button_onoff_indicator_off
            ,android.R.drawable.button_onoff_indicator_on
            ,android.R.drawable.checkbox_off_background
            ,android.R.drawable.checkbox_on_background
            ,android.R.drawable.dark_header
            ,android.R.drawable.dialog_frame
            ,android.R.drawable.dialog_holo_dark_frame
            ,android.R.drawable.dialog_holo_light_frame
            ,android.R.drawable.divider_horizontal_bright
            ,android.R.drawable.divider_horizontal_dark
            ,android.R.drawable.divider_horizontal_dim_dark
            ,android.R.drawable.divider_horizontal_textfield
            ,android.R.drawable.edit_text
            ,android.R.drawable.editbox_background
            ,android.R.drawable.editbox_background_normal
            ,android.R.drawable.editbox_dropdown_dark_frame
            ,android.R.drawable.editbox_dropdown_light_frame
            ,android.R.drawable.gallery_thumb
            ,android.R.drawable.ic_btn_speak_now
            ,android.R.drawable.ic_delete
            ,android.R.drawable.ic_dialog_alert
            ,android.R.drawable.ic_dialog_dialer
            ,android.R.drawable.ic_dialog_email
            ,android.R.drawable.ic_dialog_info
            ,android.R.drawable.ic_dialog_map
            ,android.R.drawable.ic_input_add
            ,android.R.drawable.ic_input_delete
            ,android.R.drawable.ic_input_get
            ,android.R.drawable.ic_lock_idle_alarm
            ,android.R.drawable.ic_lock_idle_charging
            ,android.R.drawable.ic_lock_idle_lock
            ,android.R.drawable.ic_lock_idle_low_battery
            ,android.R.drawable.ic_lock_lock
            ,android.R.drawable.ic_lock_power_off
            ,android.R.drawable.ic_lock_silent_mode
            ,android.R.drawable.ic_lock_silent_mode_off
            ,android.R.drawable.ic_media_ff
            ,android.R.drawable.ic_media_next
            ,android.R.drawable.ic_media_pause
            ,android.R.drawable.ic_media_play
            ,android.R.drawable.ic_media_previous
            ,android.R.drawable.ic_media_rew
            ,android.R.drawable.ic_menu_add
            ,android.R.drawable.ic_menu_agenda
            ,android.R.drawable.ic_menu_always_landscape_portrait
            ,android.R.drawable.ic_menu_call
            ,android.R.drawable.ic_menu_camera
            ,android.R.drawable.ic_menu_close_clear_cancel
            ,android.R.drawable.ic_menu_compass
            ,android.R.drawable.ic_menu_crop
            ,android.R.drawable.ic_menu_day
            ,android.R.drawable.ic_menu_delete
            ,android.R.drawable.ic_menu_directions
            ,android.R.drawable.ic_menu_edit
            ,android.R.drawable.ic_menu_gallery
            ,android.R.drawable.ic_menu_help
            ,android.R.drawable.ic_menu_info_details
            ,android.R.drawable.ic_menu_manage
            ,android.R.drawable.ic_menu_mapmode
            ,android.R.drawable.ic_menu_month
            ,android.R.drawable.ic_menu_more
            ,android.R.drawable.ic_menu_my_calendar
            ,android.R.drawable.ic_menu_mylocation
            ,android.R.drawable.ic_menu_myplaces
            ,android.R.drawable.ic_menu_preferences
            ,android.R.drawable.ic_menu_recent_history
            ,android.R.drawable.ic_menu_report_image
            ,android.R.drawable.ic_menu_revert
            ,android.R.drawable.ic_menu_rotate
            ,android.R.drawable.ic_menu_save
            ,android.R.drawable.ic_menu_search
            ,android.R.drawable.ic_menu_send
            ,android.R.drawable.ic_menu_set_as
            ,android.R.drawable.ic_menu_share
            ,android.R.drawable.ic_menu_slideshow
            ,android.R.drawable.ic_menu_sort_alphabetically
            ,android.R.drawable.ic_menu_sort_by_size
            ,android.R.drawable.ic_menu_today
            ,android.R.drawable.ic_menu_upload
            ,android.R.drawable.ic_menu_upload_you_tube
            ,android.R.drawable.ic_menu_view
            ,android.R.drawable.ic_menu_week
            ,android.R.drawable.ic_menu_zoom
            ,android.R.drawable.ic_notification_clear_all
            ,android.R.drawable.ic_notification_overlay
            ,android.R.drawable.ic_partial_secure
            ,android.R.drawable.ic_popup_disk_full
            ,android.R.drawable.ic_popup_reminder
            ,android.R.drawable.ic_popup_sync
            ,android.R.drawable.ic_search_category_default
            ,android.R.drawable.ic_secure
            ,android.R.drawable.list_selector_background
            ,android.R.drawable.menu_frame
            ,android.R.drawable.menu_full_frame
            ,android.R.drawable.menuitem_background
            ,android.R.drawable.picture_frame
            ,android.R.drawable.presence_audio_away
            ,android.R.drawable.presence_audio_busy
            ,android.R.drawable.presence_audio_online
            ,android.R.drawable.presence_away
            ,android.R.drawable.presence_busy
            ,android.R.drawable.presence_invisible
            ,android.R.drawable.presence_offline
            ,android.R.drawable.presence_online
            ,android.R.drawable.presence_video_away
            ,android.R.drawable.presence_video_busy
            ,android.R.drawable.presence_video_online
            ,android.R.drawable.progress_horizontal
            ,android.R.drawable.progress_indeterminate_horizontal
            ,android.R.drawable.radiobutton_off_background
            ,android.R.drawable.radiobutton_on_background
            ,android.R.drawable.screen_background_dark
            ,android.R.drawable.screen_background_dark_transparent
            ,android.R.drawable.screen_background_light
            ,android.R.drawable.screen_background_light_transparent
            ,android.R.drawable.spinner_background
            ,android.R.drawable.spinner_dropdown_background
            ,android.R.drawable.star_big_off
            ,android.R.drawable.star_big_on
            ,android.R.drawable.star_off
            ,android.R.drawable.star_on
            ,android.R.drawable.stat_notify_call_mute
            ,android.R.drawable.stat_notify_chat
            ,android.R.drawable.stat_notify_error
            ,android.R.drawable.stat_notify_missed_call
            ,android.R.drawable.stat_notify_more
            ,android.R.drawable.stat_notify_sdcard
            ,android.R.drawable.stat_notify_sdcard_prepare
            ,android.R.drawable.stat_notify_sdcard_usb
            ,android.R.drawable.stat_notify_sync
            ,android.R.drawable.stat_notify_sync_noanim
            ,android.R.drawable.stat_notify_voicemail
            ,android.R.drawable.stat_sys_data_bluetooth
            ,android.R.drawable.stat_sys_download
            ,android.R.drawable.stat_sys_download_done
            ,android.R.drawable.stat_sys_headset
            ,android.R.drawable.stat_sys_phone_call
            ,android.R.drawable.stat_sys_phone_call_forward
            ,android.R.drawable.stat_sys_phone_call_on_hold
            ,android.R.drawable.stat_sys_speakerphone
            ,android.R.drawable.stat_sys_upload
            ,android.R.drawable.stat_sys_upload_done
            ,android.R.drawable.stat_sys_vp_phone_call
            ,android.R.drawable.stat_sys_vp_phone_call_on_hold
            ,android.R.drawable.stat_sys_warning
            ,android.R.drawable.status_bar_item_app_background
            ,android.R.drawable.status_bar_item_background
            ,android.R.drawable.sym_action_call
            ,android.R.drawable.sym_action_chat
            ,android.R.drawable.sym_action_email
            ,android.R.drawable.sym_call_incoming
            ,android.R.drawable.sym_call_missed
            ,android.R.drawable.sym_call_outgoing
            ,android.R.drawable.sym_contact_card
            ,android.R.drawable.sym_def_app_icon
            ,android.R.drawable.title_bar
            ,android.R.drawable.title_bar_tall
            ,android.R.drawable.toast_frame
            ,android.R.drawable.zoom_plate
    };

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private String[] iListName = {

"alert_dark_frame",

"alert_light_frame",

"arrow_down_float",

"arrow_up_float",

"bottom_bar",

"btn_default",

"btn_default_small",

"btn_dialog",

"btn_dropdown",

"btn_minus",

"btn_plus",

"btn_radio",

"btn_star",

"btn_star_big_off",

"btn_star_big_on",

"button_onoff_indicator_off",

"button_onoff_indicator_on",

"checkbox_off_background",

"checkbox_on_background",

"dark_header",

"dialog_frame",

"dialog_holo_dark_frame",

"dialog_holo_light_frame",

"divider_horizontal_bright",

"divider_horizontal_dark",

"divider_horizontal_dim_dark",

"divider_horizontal_textfield",

"edit_text",

"editbox_background",

"editbox_background_normal",

"editbox_dropdown_dark_frame",

"editbox_dropdown_light_frame",

"gallery_thumb",

"ic_btn_speak_now",

"ic_delete",

"ic_dialog_alert",

"ic_dialog_dialer",

"ic_dialog_email",

"ic_dialog_info",

"ic_dialog_map",

"ic_input_add",

"ic_input_delete",

"ic_input_get",

"ic_lock_idle_alarm",

"ic_lock_idle_charging",

"ic_lock_idle_lock",

"ic_lock_idle_low_battery",

"ic_lock_lock",

"ic_lock_power_off",

"ic_lock_silent_mode",

"ic_lock_silent_mode_off",

"ic_media_ff",

"ic_media_next",

"ic_media_pause",

"ic_media_play",

"ic_media_previous",

"ic_media_rew",

"ic_menu_add",

"ic_menu_agenda",

"ic_menu_always_landscape_portrait",

"ic_menu_call",

"ic_menu_camera",

"ic_menu_close_clear_cancel",

"ic_menu_compass",

"ic_menu_crop",

"ic_menu_day",

"ic_menu_delete",

"ic_menu_directions",

"ic_menu_edit",

"ic_menu_gallery",

"ic_menu_help",

"ic_menu_info_details",

"ic_menu_manage",

"ic_menu_mapmode",

"ic_menu_month",

"ic_menu_more",

"ic_menu_my_calendar",

"ic_menu_mylocation",

"ic_menu_myplaces",

"ic_menu_preferences",

"ic_menu_recent_history",

"ic_menu_report_image",

"ic_menu_revert",

"ic_menu_rotate",

"ic_menu_save",

"ic_menu_search",

"ic_menu_send",

"ic_menu_set_as",

"ic_menu_share",

"ic_menu_slideshow",

"ic_menu_sort_alphabetically",

"ic_menu_sort_by_size",

"ic_menu_today",

"ic_menu_upload",

"ic_menu_upload_you_tube",

"ic_menu_view",

"ic_menu_week",

"ic_menu_zoom",

"ic_notification_clear_all",

"ic_notification_overlay",

"ic_partial_secure",

"ic_popup_disk_full",

"ic_popup_reminder",

"ic_popup_sync",

"ic_search_category_default",

"ic_secure",

"list_selector_background",

"menu_frame",

"menu_full_frame",

"menuitem_background",

"picture_frame",

"presence_audio_away",

"presence_audio_busy",

"presence_audio_online",

"presence_away",

"presence_busy",

"presence_invisible",

"presence_offline",

"presence_online",

"presence_video_away",

"presence_video_busy",

"presence_video_online",

"progress_horizontal",

"progress_indeterminate_horizontal",

"radiobutton_off_background",

"radiobutton_on_background",

"screen_background_dark",

"screen_background_dark_transparent",

"screen_background_light",

"screen_background_light_transparent",

"spinner_background",

"spinner_dropdown_background",

"star_big_off",

"star_big_on",

"star_off",

"star_on",

"stat_notify_call_mute",

"stat_notify_chat",

"stat_notify_error",

"stat_notify_missed_call",

"stat_notify_more",

"stat_notify_sdcard",

"stat_notify_sdcard_prepare",

"stat_notify_sdcard_usb",

"stat_notify_sync",

"stat_notify_sync_noanim",

"stat_notify_voicemail",

"stat_sys_data_bluetooth",

"stat_sys_download",

"stat_sys_download_done",

"stat_sys_headset",

"stat_sys_phone_call",

"stat_sys_phone_call_forward",

"stat_sys_phone_call_on_hold",

"stat_sys_speakerphone",

"stat_sys_upload",

"stat_sys_upload_done",

"stat_sys_vp_phone_call",

"stat_sys_vp_phone_call_on_hold",

"stat_sys_warning",

"status_bar_item_app_background",

"status_bar_item_background",

"sym_action_call",

"sym_action_chat",

"sym_action_email",

"sym_call_incoming",

"sym_call_missed",

"sym_call_outgoing",

"sym_contact_card",

"sym_def_app_icon",

"title_bar",

"title_bar_tall",

"toast_frame",

"zoom_plate"

};

private Integer[] iList = {

android.R.drawable.alert_dark_frame

,android.R.drawable.alert_light_frame

,android.R.drawable.arrow_down_float

,android.R.drawable.arrow_up_float

,android.R.drawable.bottom_bar

,android.R.drawable.btn_default

,android.R.drawable.btn_default_small

,android.R.drawable.btn_dialog

,android.R.drawable.btn_dropdown

,android.R.drawable.btn_minus

,android.R.drawable.btn_plus

,android.R.drawable.btn_radio

,android.R.drawable.btn_star

,android.R.drawable.btn_star_big_off

,android.R.drawable.btn_star_big_on

,android.R.drawable.button_onoff_indicator_off

,android.R.drawable.button_onoff_indicator_on

,android.R.drawable.checkbox_off_background

,android.R.drawable.checkbox_on_background

,android.R.drawable.dark_header

,android.R.drawable.dialog_frame

,android.R.drawable.dialog_holo_dark_frame

,android.R.drawable.dialog_holo_light_frame

,android.R.drawable.divider_horizontal_bright

,android.R.drawable.divider_horizontal_dark

,android.R.drawable.divider_horizontal_dim_dark

,android.R.drawable.divider_horizontal_textfield

,android.R.drawable.edit_text

,android.R.drawable.editbox_background

,android.R.drawable.editbox_background_normal

,android.R.drawable.editbox_dropdown_dark_frame

,android.R.drawable.editbox_dropdown_light_frame

,android.R.drawable.gallery_thumb

,android.R.drawable.ic_btn_speak_now

,android.R.drawable.ic_delete

,android.R.drawable.ic_dialog_alert

,android.R.drawable.ic_dialog_dialer

,android.R.drawable.ic_dialog_email

,android.R.drawable.ic_dialog_info

,android.R.drawable.ic_dialog_map

,android.R.drawable.ic_input_add

,android.R.drawable.ic_input_delete

,android.R.drawable.ic_input_get

,android.R.drawable.ic_lock_idle_alarm

,android.R.drawable.ic_lock_idle_charging

,android.R.drawable.ic_lock_idle_lock

,android.R.drawable.ic_lock_idle_low_battery

,android.R.drawable.ic_lock_lock

,android.R.drawable.ic_lock_power_off

,android.R.drawable.ic_lock_silent_mode

,android.R.drawable.ic_lock_silent_mode_off

,android.R.drawable.ic_media_ff

,android.R.drawable.ic_media_next

,android.R.drawable.ic_media_pause

,android.R.drawable.ic_media_play

,android.R.drawable.ic_media_previous

,android.R.drawable.ic_media_rew

,android.R.drawable.ic_menu_add

,android.R.drawable.ic_menu_agenda

,android.R.drawable.ic_menu_always_landscape_portrait

,android.R.drawable.ic_menu_call

,android.R.drawable.ic_menu_camera

,android.R.drawable.ic_menu_close_clear_cancel

,android.R.drawable.ic_menu_compass

,android.R.drawable.ic_menu_crop

,android.R.drawable.ic_menu_day

,android.R.drawable.ic_menu_delete

,android.R.drawable.ic_menu_directions

,android.R.drawable.ic_menu_edit

,android.R.drawable.ic_menu_gallery

,android.R.drawable.ic_menu_help

,android.R.drawable.ic_menu_info_details

,android.R.drawable.ic_menu_manage

,android.R.drawable.ic_menu_mapmode

,android.R.drawable.ic_menu_month

,android.R.drawable.ic_menu_more

,android.R.drawable.ic_menu_my_calendar

,android.R.drawable.ic_menu_mylocation

,android.R.drawable.ic_menu_myplaces

,android.R.drawable.ic_menu_preferences

,android.R.drawable.ic_menu_recent_history

,android.R.drawable.ic_menu_report_image

,android.R.drawable.ic_menu_revert

,android.R.drawable.ic_menu_rotate

,android.R.drawable.ic_menu_save

,android.R.drawable.ic_menu_search

,android.R.drawable.ic_menu_send

,android.R.drawable.ic_menu_set_as

,android.R.drawable.ic_menu_share

,android.R.drawable.ic_menu_slideshow

,android.R.drawable.ic_menu_sort_alphabetically

,android.R.drawable.ic_menu_sort_by_size

,android.R.drawable.ic_menu_today

,android.R.drawable.ic_menu_upload

,android.R.drawable.ic_menu_upload_you_tube

,android.R.drawable.ic_menu_view

,android.R.drawable.ic_menu_week

,android.R.drawable.ic_menu_zoom

,android.R.drawable.ic_notification_clear_all

,android.R.drawable.ic_notification_overlay

,android.R.drawable.ic_partial_secure

,android.R.drawable.ic_popup_disk_full

,android.R.drawable.ic_popup_reminder

,android.R.drawable.ic_popup_sync

,android.R.drawable.ic_search_category_default

,android.R.drawable.ic_secure

,android.R.drawable.list_selector_background

,android.R.drawable.menu_frame

,android.R.drawable.menu_full_frame

,android.R.drawable.menuitem_background

,android.R.drawable.picture_frame

,android.R.drawable.presence_audio_away

,android.R.drawable.presence_audio_busy

,android.R.drawable.presence_audio_online

,android.R.drawable.presence_away

,android.R.drawable.presence_busy

,android.R.drawable.presence_invisible

,android.R.drawable.presence_offline

,android.R.drawable.presence_online

,android.R.drawable.presence_video_away

,android.R.drawable.presence_video_busy

,android.R.drawable.presence_video_online

,android.R.drawable.progress_horizontal

,android.R.drawable.progress_indeterminate_horizontal

,android.R.drawable.radiobutton_off_background

,android.R.drawable.radiobutton_on_background

,android.R.drawable.screen_background_dark

,android.R.drawable.screen_background_dark_transparent

,android.R.drawable.screen_background_light

,android.R.drawable.screen_background_light_transparent

,android.R.drawable.spinner_background

,android.R.drawable.spinner_dropdown_background

,android.R.drawable.star_big_off

,android.R.drawable.star_big_on

,android.R.drawable.star_off

,android.R.drawable.star_on

,android.R.drawable.stat_notify_call_mute

,android.R.drawable.stat_notify_chat

,android.R.drawable.stat_notify_error

,android.R.drawable.stat_notify_missed_call

,android.R.drawable.stat_notify_more

,android.R.drawable.stat_notify_sdcard

,android.R.drawable.stat_notify_sdcard_prepare

,android.R.drawable.stat_notify_sdcard_usb

,android.R.drawable.stat_notify_sync

,android.R.drawable.stat_notify_sync_noanim

,android.R.drawable.stat_notify_voicemail

,android.R.drawable.stat_sys_data_bluetooth

,android.R.drawable.stat_sys_download

,android.R.drawable.stat_sys_download_done

,android.R.drawable.stat_sys_headset

,android.R.drawable.stat_sys_phone_call

,android.R.drawable.stat_sys_phone_call_forward

,android.R.drawable.stat_sys_phone_call_on_hold

,android.R.drawable.stat_sys_speakerphone

,android.R.drawable.stat_sys_upload

,android.R.drawable.stat_sys_upload_done

,android.R.drawable.stat_sys_vp_phone_call

,android.R.drawable.stat_sys_vp_phone_call_on_hold

,android.R.drawable.stat_sys_warning

,android.R.drawable.status_bar_item_app_background

,android.R.drawable.status_bar_item_background

,android.R.drawable.sym_action_call

,android.R.drawable.sym_action_chat

,android.R.drawable.sym_action_email

,android.R.drawable.sym_call_incoming

,android.R.drawable.sym_call_missed

,android.R.drawable.sym_call_outgoing

,android.R.drawable.sym_contact_card

,android.R.drawable.sym_def_app_icon

,android.R.drawable.title_bar

,android.R.drawable.title_bar_tall

,android.R.drawable.toast_frame

,android.R.drawable.zoom_plate

};

References:
R.drawable | Android Developers
Grid View | Android Developers
　