/* * Copyright (C) 2007 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * *      http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */package com.example.android.apis.view;import com.example.android.apis.R;import android.app.Activity;import android.content.Context;import android.content.res.TypedArray;import android.os.Bundle;import android.view.ContextMenu;import android.view.MenuItem;import android.view.View;import android.view.ViewGroup;import android.view.ContextMenu.ContextMenuInfo;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageView;import android.widget.Toast;import android.widget.AdapterView.AdapterContextMenuInfo;import android.widget.AdapterView.OnItemClickListener;public class Gallery1 extends Activity {    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.gallery_1);        // Reference the Gallery view        Gallery g = (Gallery) findViewById(R.id.gallery);        // Set the adapter to our custom adapter (below)        g.setAdapter(new ImageAdapter(this));                // Set a item click listener, and just Toast the clicked position        g.setOnItemClickListener(new OnItemClickListener() {            public void onItemClick(AdapterView parent, View v, int position, long id) {                Toast.makeText(Gallery1.this, "" + position, Toast.LENGTH_SHORT).show();            }        });                // We also want to show context menu for longpressed items in the gallery        registerForContextMenu(g);    }    @Override    public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {        menu.add(R.string.gallery_2_text);    }        @Override    public boolean onContextItemSelected(MenuItem item) {        AdapterContextMenuInfo info = (AdapterContextMenuInfo) item.getMenuInfo();        Toast.makeText(this, "Longpress: " + info.position, Toast.LENGTH_SHORT).show();        return true;    }    public class ImageAdapter extends BaseAdapter {        int mGalleryItemBackground;                public ImageAdapter(Context c) {            mContext = c;            // See res/values/attrs.xml for the <declare-styleable> that defines            // Gallery1.            TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);            mGalleryItemBackground = a.getResourceId(                    R.styleable.Gallery1_android_galleryItemBackground, 0);            a.recycle();        }        public int getCount() {            return mImageIds.length;        }        public Object getItem(int position) {            return position;        }        public long getItemId(int position) {            return position;        }        public View getView(int position, View convertView, ViewGroup parent) {            ImageView i = new ImageView(mContext);            i.setImageResource(mImageIds[position]);            i.setScaleType(ImageView.ScaleType.FIT_XY);            i.setLayoutParams(new Gallery.LayoutParams(136, 88));                        // The preferred Gallery item background            i.setBackgroundResource(mGalleryItemBackground);                        return i;        }        private Context mContext;        private Integer[] mImageIds = {                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        };    }}