Android画廊滚动像查看页面器

Question

我同时使用了Gallery和ViewPager小工具，我从web服务中获取图像，但我不能将它们放在ViewPager中，但在Gallery中很容易。我用这个教程是为了view pager http://mobile . tuts plus . com/tutorials/Android/Android-user-interface-design-horizontal-view-paging/

我想要Android图库小部件滚动像ViewPager滚动一样，

这是可能的，我怎么能这样做。

Answer 1

下面是 PagerAdapter 的实例化Item（） 方法的简单示例，该方法将动态填充图像视图。

@Override
public Object instantiateItem( final View pager, final int position )
{
    //Note: if you do not have a local reference to the context make one and
    //set it to the context that gets passed in to the constructor.
    //Another option might be to use pager.getContext() which is how its
    //done in the tutorial that you linked.
    ImageView mImg = new ImageView(context);

    /*Code to dynamically set your image goes here.
    Exactly what it will be is going to depend on 
    how your images are stored. 
    In this example it would be if the images
    are on the SD card and have filenames
    with incrementing numbers like: (img0.png, img1.png, img2.png etc...)*/

    Bitmap mBitmap = BitmapFactory.decodeFile(
         Environment.getExternalStorageDirectory() + "/img" + position + ".png");
    mImg.setImageBitmap(mBitmap);




    ((ViewPager) collection).addView(mImg, 0);
    return mImg;

}