今天看见有同学再问关于画廊那种效果怎么实现,其实自己当时也不知道那叫画廊。嘿嘿。不过还是做了一下。练哈手。
不过看了哈资料,貌似android不再推荐使用这种了 推荐viewPager来实现 在新版本上尽量使用。
先上效果图:
代码如下:
public class MainActivity extends Activity { private Gallery gallery; private ImageView imageView; private Integer[] mImageIds ={ R.drawable.a, R.drawable.b, R.drawable.c, R.drawable.e, R.drawable.f }; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); imageView=(ImageView) findViewById(R.id.imageView); imageView.setImageResource(R.drawable.a); gallery=(Gallery) findViewById(R.id.gallery); //创建一个adapter对象 BaseAdapter adapter=new BaseAdapter() { @Override public View getView(int imageItem, View convertView, ViewGroup parent) { //创建一个ImageView ImageView image=new ImageView(MainActivity.this); image.setImageResource(mImageIds[imageItem]); //设置图片 //设置imageView的缩放类型 image.setScaleType(ImageView.ScaleType.FIT_XY); //设置ImageViewde 的布局参数 image.setLayoutParams(new Gallery.LayoutParams(75, 100)); return image; } @Override public long getItemId(int position) { return position; } @Override public Object getItem(int position) { // TODO Auto-generated method stub return position; } @Override public int getCount() { // TODO Auto-generated method stub return mImageIds.length; } }; gallery.setAdapter(adapter); gallery.setOnItemClickListener(new OnItemClickListener() { @Override public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { imageView.setImageResource(mImageIds[arg2]); } }); } }
Activity代码如下:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="fill_parent" android:layout_height="fill_parent" android:orientation="vertical" > <ImageView android:id="@+id/imageView" android:layout_width="320dp" android:layout_height="320dp" android:contentDescription="TODO"/> <Gallery android:id="@+id/gallery" android:layout_width="fill_parent" android:layout_height="wrap_content" android:gravity="bottom|center_vertical" android:spacing="2dp" android:layout_marginTop="25dp" android:unselectedAlpha="0.6" /> </LinearLayout>