我想在我的应用程序中实现垂直封面流程。我有CoverFlow的源代码，但它显示水平方式。我在代码中做了一些更改并应用此方法imageView.setRotation（270）之后显示垂直模式但是一个问题是，它只显示封面流中心的一个图像，但它看起来不像Cover Flow。任何人都可以告诉我在哪里需要更改我的代码以查找垂直CoverFlow。您的帮助非常感谢。我很感激。在这里附上源代码
public class AllDeals extends BaseFragment implements OnClickListener
{
CoverFlow cover;
Button btn_back,btn_up,btn_down,btn_more;
TextView txt_cardesc,txt_carprize,txt_vat;
public int myposition=-1;
@SuppressLint("NewApi")
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState)
{
// TODO Auto-generated method stub
//return super.onCreateView(inflater, container, savedInstanceState);
View v=inflater.inflate(R.layout.alldeals, container,false);
cover=(CoverFlow)v.findViewById(R.id.alldeal_cover);
btn_back=(Button)v.findViewById(R.id.btn_alldeal_back);
btn_back.setOnClickListener(this);
btn_up=(Button)v.findViewById(R.id.btn_alldeals_up);
btn_down=(Button)v.findViewById(R.id.btn_all_deal_down);
btn_more=(Button)v.findViewById(R.id.btn_all_deal_more);
// for text views
txt_cardesc=(TextView)v.findViewById(R.id.txt_cardesc);
txt_carprize=(TextView)v.findViewById(R.id.txt_alldeal_carprize);
txt_vat=(TextView)v.findViewById(R.id.txt_alldeal_vat);
// add set action listener to buttons
btn_up.setOnClickListener(this);
btn_down.setOnClickListener(this);
btn_more.setOnClickListener(this);
cover.setAdapter(new ImageAdapter(getActivity()));
ImageAdapter coverImageAdapter = new ImageAdapter(getActivity());
cover.setSpacing(-5);
cover.setSelection(-1, true);
cover.setAnimationDuration(1000);
cover.setRotation(90);
//set up listener for cover
setListener(cover);
return v;
}
private void setListener(CoverFlow myCoverFlow)
{
// TODO Auto-generated method stub
myCoverFlow.setOnItemClickListener(new OnItemClickListener()
{
@Override
public void onItemClick(AdapterView<?> arg0, View view, int position,
long arg3)
{
// TODO Auto-generated method stub
myposition=position;
}
});
myCoverFlow.setOnItemSelectedListener(new OnItemSelectedListener()
{
@Override
public void onItemSelected(AdapterView<?> arg0, View view,
int position, long arg3)
{
// TODO Auto-generated method stub
myposition=position;
}
@Override
public void onNothingSelected(AdapterView<?> arg0)
{
// TODO Auto-generated method stub
}
});
}
class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private Integer[] mImageIds = { R.drawable.image01, R.drawable.image02,
R.drawable.image03, R.drawable.image04, R.drawable.image05 };
private ImageView[] mImages;
public ImageAdapter(Context c) {
mContext = c;
mImages = new ImageView[mImageIds.length];
}
@SuppressWarnings("deprecation")
public boolean createReflectedImages() {
// The gap we want between the reflection and the original image
final int reflectionGap = 4;
int index = 0;
for (int imageId : mImageIds) {
Bitmap originalImage = BitmapFactory.decodeResource(
getResources(), imageId);
int width = originalImage.getWidth();
int height = originalImage.getHeight();
// This will not scale but will flip on the Y axis
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
// Create a Bitmap with the flip matrix applied to it.
// We only want the bottom half of the image
Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0,
height / 2, width, height / 2, matrix, false);
// Create a new bitmap with same width but taller to fit
// reflection
Bitmap bitmapWithReflection = Bitmap.createBitmap(width,
(height + height / 2), Config.ARGB_8888);
// Create a new Canvas with the bitmap that's big enough for
// the image plus gap plus reflection
Canvas canvas = new Canvas(bitmapWithReflection);
// Draw in the original image
canvas.drawBitmap(originalImage, 0, 0, null);
// Draw in the gap
Paint deafaultPaint = new Paint();
canvas.drawRect(0, height, width, height + reflectionGap,
deafaultPaint);
// Draw in the reflection
canvas.drawBitmap(reflectionImage, 0, height + reflectionGap,
null);
// Create a shader that is a linear gradient that covers the
// reflection
Paint paint = new Paint();
LinearGradient shader = new LinearGradient(0,
originalImage.getHeight(), 0,
bitmapWithReflection.getHeight() + reflectionGap,
0x70ffffff, 0x00ffffff, TileMode.CLAMP);
// Set the paint to use this shader (linear gradient)
paint.setShader(shader);
// Set the Transfer mode to be porter duff and destination in
paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
// Draw a rectangle using the paint with our linear gradient
canvas.drawRect(0, height, width,
bitmapWithReflection.getHeight() + reflectionGap, paint);
ImageView imageView = new ImageView(mContext);
imageView.setImageBitmap(bitmapWithReflection);
android.widget.Gallery.LayoutParams imgLayout = new CoverFlow.LayoutParams(
320, 480);
imageView.setLayoutParams(imgLayout);
imageView.setPadding(30, 100, 20, 20);
mImages[index++] = imageView;
}
return true;
}
public int getCount() {
return mImageIds.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
@SuppressLint("NewApi")
@SuppressWarnings("deprecation")
public View getView(int position, View convertView, ViewGroup parent) {
// Use this code if you want to load from resources
ImageView i = new ImageView(mContext);
i.setImageResource(mImageIds[position]);
i.setLayoutParams(new CoverFlow.LayoutParams(180, 240));
i.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
i.setRotation(270);
// Make sure we set anti-aliasing otherwise we get jaggies
BitmapDrawable drawable = (BitmapDrawable) i.getDrawable();
drawable.setAntiAlias(true);
return i;
// return mImages[position];
}
/**
* Returns the size (0.0f to 1.0f) of the views depending on the
* 'offset' to the center.
*/
public float getScale(boolean focused, int offset) {
/* Formula: 1 / (2 ^ offset) */
return Math.max(0, 1.0f / (float) Math.pow(2, Math.abs(offset)));
}
}
@Override
public void onClick(View view)
{
// TODO Auto-generated method stub
if(view==btn_back)
{
mActivity.pushFragments(com.media.contractcar.base.AppConstants.TAB_HOME, new Home(), true, true);
}
if(view==btn_up)
{
try
{
cover.setSelection(myposition+1,true);
}
catch(Exception e)
{
e.printStackTrace();
}
}
if(view==btn_down)
{
if(myposition>0)
{
cover.setSelection(myposition-1,true);
}
}
}
}