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hi I m currently testing the android coverflow i tried to get images from the url and display it in the coverflow i have successfully downloaded the images but cant put in the bitmap. here is code which i tried...
package com.example.coverflow;
import java.io.FileInputStream;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.Config;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuff.Mode;
import android.graphics.PorterDuffXfermode;
import android.graphics.Shader.TileMode;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.Toast;
import android.widget.ImageView.ScaleType;
import com.example.coverflow.CoverAdapterView.OnItemClickListener;
public class CoverFlowExample extends Activity {
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
CoverFlow coverFlow;
coverFlow = new CoverFlow(this);
coverFlow.setAdapter(new ImageAdapter(this));
ImageAdapter coverImageAdapter = new ImageAdapter(this);
coverImageAdapter.createReflectedImages();
coverFlow.setAdapter(coverImageAdapter);
coverFlow.setSpacing(-15);
coverFlow.setSelection(8, true);
setContentView(coverFlow);
coverFlow.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(CoverAdapterView<?> parent, View view,
int position, long id) {
// TODO Auto-generated method stub
Log.v("possition ", " this position :"+position );
Toast.makeText(getApplicationContext(), "position "+position, Toast.LENGTH_SHORT).show();
}
});
// Use this if you want to use XML layout file
// setContentView(R.layout.main);
// coverFlow = (CoverFlow) findViewById(R.id.coverflow);
}
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Context mContext;
private FileInputStream fis;
//public Integer[] mImageIds ;
private Integer[] mImageIds ={1,2,3,4,5};
/*private Integer[] mImageIds = { R.drawable.kasabian_kasabian,
R.drawable.killers_day_and_age, R.drawable.garbage_bleed_like_me,
R.drawable.death_cub_for_cutie_the_photo_album,
R.drawable.kasabian_kasabian, R.drawable.kasabian_kasabian,
R.drawable.killers_day_and_age,
R.drawable.garbage_bleed_like_me,
R.drawable.massive_attack_collected,
R.drawable.kasabian_kasabian, R.drawable.kasabian_kasabian,
R.drawable.kasabian_kasabian
};*/
public int getCount2()
{
for(int i=0;i<5;i++)
{
ImageView imageView = new ImageView(mContext);
URL url;
try {
url = new URL("http://www.psdgraphics.com/file/retro-tv-icon.jpg");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);
imageView.setId(i);
//mImageIds[i]=i;
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return mImageIds.length;
}
private ImageView[] mImages;
public ImageAdapter(Context c) {
mContext = c;
mImages = new ImageView[getCount2()];
}
public boolean createReflectedImages() {
// The gap we want between the reflection and the original image
final int reflectionGap = 4;
int index = 0;
for (final int imageId : mImageIds) {
// Bitmap originalImage = BitmapFactory.decodeResource(
// getResources(), imageId);
URL url;
Bitmap originalImage= null;
try {
url = new URL("http://image10.bizrate-images.com/resize?sq=60&uid=2216744464");
originalImage = BitmapFactory.decodeStream(url.openConnection().getInputStream());
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
int width = originalImage.getWidth();
int height = originalImage.getHeight();
Log.v("width:",""+width+","+height);
// This will not scale but will flip on the Y axis
Matrix matrix = new Matrix();
matrix.preScale(1, -1);
Log.v("errer her", "aftr originalImage");
// 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);
Log.v("errer her", "aftr reflectionImage");
// 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);
Log.v("errer her", "aftr drawrect");
ImageView imageView = new ImageView(mContext);
imageView.setImageBitmap(bitmapWithReflection);
imageView.setLayoutParams(new CoverFlow.LayoutParams(120, 180));
imageView.setScaleType(ScaleType.MATRIX);
mImages[index++] = imageView;
}
return true;
}
public int getCount() {
// Log.v("getCoutn(int count)", "" + mImageIds.length);
return mImageIds.length;
}
public Object getItem(int position) {
// Log.v("getItem(int position)", "" + position);
return position;
}
public long getItemId(int position) {
// Log.v("getItemID(int position)", "" + position);
return position;
}
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(130, 130));
// i.setScaleType(ImageView.ScaleType.MATRIX);
// return i;
// Log.v("getview int position mImages", ""+position);
ImageView imageView = new ImageView(mContext);
URL url;
try {
url = new URL("http://image10.bizrate-images.com/resize?sq=60&uid=2216744464");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);
imageView.setId(position);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return imageView;
//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) */
Log.v("getScale float ", " " + focused + " " + offset);
return Math.max(0, 1.0f / (float) Math.pow(2, Math.abs(offset)));
}
// View v=getView(position, convertView, parent);
}
}
541
1.Create ImageAdater.java
package com.sample.Adapters;
import java.util.ArrayList;
import android.app.Activity;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.ImageView;
public class ImageAdapter extends BaseAdapter {
int mGalleryItemBackground;
private Activity mContext;
ArrayList<byte[]> imgarray ;
public ImageAdapter(Activity c,ArrayList<byte[]> array) {
mContext = c;
this.imgarray = array ;
}
public int getCount() {
return imgarray.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView( final int position, View convertView, ViewGroup parent) {
ImageView i = new ImageView(mContext);
i.setImageBitmap(BitmapFactory.decodeByteArray(imgarray.get(position), 0, imgarray.get(position).length));
i.setLayoutParams(new com.sample.custom.CoverFlow.LayoutParams(LayoutParams.WRAP_CONTENT-20, LayoutParams.WRAP_CONTENT-20));
i.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
BitmapDrawable drawable = (BitmapDrawable) i.getDrawable();
drawable.setAntiAlias(true);
return i;
}
public float getScale(boolean focused, int offset) {
/* Formula: 1 / (2 ^ offset) */
return Math.max(0, 1.0f / (float)Math.pow(2, Math.abs(offset)));
}
}
2.method for downloadimages
public static byte[] getLogoImage(String url){
try {
URL imageUrl = new URL(url);
URLConnection ucon = imageUrl.openConnection();
InputStream is = ucon.getInputStream();
BufferedInputStream bis = new BufferedInputStream(is);
ByteArrayBuffer baf = new ByteArrayBuffer(500);
int current = 0;
while ((current = bis.read()) != -1) {
baf.append((byte) current);
}
return baf.toByteArray();
} catch (Exception e) {
Log.d("ImageManager", "Error: " + e.toString());
}
return null;
}
3.Declare one ArrayList<byte[]> arraylistgallery = new ArrayList<byte[]>();
here i assume that total coming images will be 10
for(int i=0 ; i<10 ; i++){
arraylistgallery.add(i,getLogoImage("http://www.psdgraphics.com/file/retro-tv-icon.jpg"));
}
downloadImages in AsyncTask And save In arraylistgallery ArrayList
And pass like this
coverFlow.setVisibility(View.VISIBLE);
coverFlow.setAdapter(new ImageAdapter(this,arraylistgallery));
coverFlow.setSpacing(5);
coverFlow.setSelection(arraylistgallery.size()-1, true);
coverFlow.setAnimationDuration(1000);
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