Custom adapter on both GridView and Gallery
It's a example using the same custom adapter on both GridView and Gallery. It can be noticed that adapter used on both GridView and Gallery are basically the same.
/res/layout/gridlayout.xml
layout file , main.xml
main java code
/res/layout/gridlayout.xml
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| <?xml version="1.0" encoding="utf-8"?> android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ImageView android:id="@+id/image" android:layout_width="70dp" android:layout_height="wrap_content" android:layout_gravity="center"/></LinearLayout> |
layout file , main.xml
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| <?xml version="1.0" encoding="utf-8"?> android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" ><TextView android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="@string/hello" /><Gallery android:id="@+id/gallery" android:layout_width="fill_parent" android:layout_height="50dp" /><GridView android:id="@+id/grid" android:layout_width="fill_parent" android:layout_height="fill_parent" android:numColumns="2" android:columnWidth="100px" android:stretchMode="columnWidth" android:gravity="center"/></LinearLayout> |
main java code
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| package com.AndroidGridView;import android.app.Activity;import android.content.Context;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.os.Bundle;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.GridView;import android.widget.ImageView;public class AndroidGridViewActivity extends Activity { public class MyAdapter extends BaseAdapter { final int NumberOfItem = 30; private Bitmap[] bitmap = new Bitmap[NumberOfItem]; private Context context; private LayoutInflater layoutInflater; MyAdapter(Context c){ context = c; layoutInflater = LayoutInflater.from(context); //init dummy bitmap, //using R.drawable.icon for all items for(int i = 0; i < NumberOfItem; i++){ bitmap[i] = BitmapFactory.decodeResource(context.getResources(), R.drawable.icon); } } @Override public int getCount() { // TODO Auto-generated method stub return bitmap.length; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return bitmap[position]; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { // TODO Auto-generated method stub View grid; if(convertView==null){ grid = new View(context); grid = layoutInflater.inflate(R.layout.gridlayout, null); }else{ grid = (View)convertView; } ImageView imageView = (ImageView)grid.findViewById(R.id.image); imageView.setImageBitmap(bitmap[position]); return grid; } } GridView gridView; Gallery gallery; /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); gridView = (GridView)findViewById(R.id.grid); gallery = (Gallery)findViewById(R.id.gallery); MyAdapter adapter = new MyAdapter(this); gridView.setAdapter(adapter); gallery.setAdapter(adapter); } } |
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