简单图片浏览器

/HuaLang/res/layout/activity_main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context=".MainActivity" >    <ImageSwitcher        android:id="@+id/showImage"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_centerInParent="true"        android:inAnimation="@android:anim/fade_in"        android:outAnimation="@android:anim/fade_out"     >    </ImageSwitcher>    <Gallery        android:id="@+id/gallery1"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:layout_alignParentBottom="true"        android:spacing="2dp"        android:layout_centerHorizontal="true"      /></RelativeLayout>

/HuaLang/src/cn/edu/bzu/hualang/activity/MainActivity.java

package cn.edu.bzu.hualang.activity;import android.app.Activity;import android.os.Bundle;import android.view.Menu;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Gallery;import android.widget.ImageSwitcher;import android.widget.ImageView;import android.widget.ViewSwitcher.ViewFactory;public class MainActivity extends Activity {private ImageSwitcher imageSwitcher;private Gallery gallery;private int[] smallIamges =new int[] { R.drawable.one, R.drawable.two,R.drawable.three,R.drawable.four,R.drawable.five,R.drawable.six };private int[] bigImages = { R.drawable.big_one, R.drawable.big_two,R.drawable.big_three,R.drawable.big_four,R.drawable.big_five,R.drawable.big_six };@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);imageSwitcher = (ImageSwitcher) findViewById(R.id.showImage);imageSwitcher.setFactory(new ViewFactory() {@Overridepublic View makeView() {ImageView imageView = new ImageView(MainActivity.this);// TODO Auto-generated method stubreturn imageView;}});gallery = (Gallery) findViewById(R.id.gallery1);ImageAdapter imgImageAdapter=new ImageAdapter();gallery.setAdapter(imgImageAdapter);}@Overridepublic boolean onCreateOptionsMenu(Menu menu) {// Inflate the menu; this adds items to the action bar if it is present.getMenuInflater().inflate(R.menu.main, menu);return true;}private class ImageAdapter extends BaseAdapter {@Overridepublic int getCount() {// TODO Auto-generated method stubreturn smallIamges.length;}@Overridepublic Object getItem(int position) {// TODO Auto-generated method stubreturn smallIamges[position];}@Overridepublic long getItemId(int position) {// TODO Auto-generated method stubreturn position;}@Overridepublic View getView(int position, View conVertView, ViewGroup parent) {ImageView imageView=new ImageView(MainActivity.this);imageView.setImageResource(smallIamges[position]);return imageView;}}}