i am developing an app which shows thumbnail of images using grid view i
created image adapter class to get the thumbnail images , but it is not
working plse help me(force close)
here is my code
package com.playswf;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
public class playswf extends Activity {
String[] imageURLs = new String[100];
Bitmap bitmap;
ArrayList<String>list=new ArrayList<String>();
public JSONObject json;
int count;
// String[] mylist =new String[100];
//private ImageAdapter imageAdapter;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
//getimageurl();
GridView sdcardImages = (GridView) findViewById(R.id.gridview);
list.add("http://works.sodprojects.com/mobile/$userfiles/thumb_82_431_39.jpg
");
list.add("http://works.sodprojects.com/mobile/$userfiles/thumb_82_431_39.jpg
");
list.add("http://works.sodprojects.com/mobile/$userfiles/thumb_82_431_39.jpg
");
sdcardImages.setAdapter(new ImageAdapter(this));
// Toast.makeText(getBaseContext(),
// " selected"+ list.toString() ,
// Toast.LENGTH_SHORT).show();
}
private class ImageAdapter extends BaseAdapter {
private final Context context;
public ImageAdapter(Context localContext) {
context = localContext;
}
public int getCount()
{
return list.size();
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup
parent)
{
ImageView picturesView;
if (convertView == null) {
picturesView = new ImageView(context);
for(int i=0;i<list.size();i++)
{
Bitmap mBitmap = BitmapFactory.decodeFile(list.get(i));
picturesView.setImageBitmap(mBitmap);
}
picturesView.setScaleType(ImageView.ScaleType.FIT_CENTER);
picturesView.setPadding(8, 8, 8, 8);
picturesView.setLayoutParams(new GridView.LayoutParams(100,
100));
}
else
{
picturesView = (ImageView)convertView;
}
return picturesView;
}
}
private ArrayList<String> getimageurl() {
json =JsonImplementation.getJSONfromURL("
http://works.sodprojects.com/mobile/mobile/ViewPhotos/?id=82";);
// Toast.makeText(getBaseContext(),
// " selected"+ json .toString(),
// Toast.LENGTH_SHORT).show();
try{
JSONArray data = json.getJSONArray("result");
count =data.length();
for(int i=0;i<data.length();i++){
JSONObject e = data.getJSONObject(i);
//getting the value of message_id and conversation_id
//MainActivity.MESSAGE_ID=e.getString("username");
list.add("http://works.sodprojects.com/mobile/"+e.getString("Photo"));
//list[i]="http://works.sodprojects.com/mobile/"+e.getString("Photo");
}
/// Toast.makeText(getBaseContext(),
// " selected"+ mylist[0],
// Toast.LENGTH_SHORT).show();
}
catch(JSONException e) {
Log.e("log_tag", "Error parsing data "+e.toString());
}
return list;
// TODO Auto-generated method stub
}
public static Bitmap downloadFile(String fileUrl){
Bitmap bmImg = null;
URL myFileUrl =null;
try {
myFileUrl= new URL(fileUrl);
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
HttpURLConnection conn=
(HttpURLConnection)myFileUrl.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = conn.getInputStream();
bmImg = BitmapFactory.decodeStream(is);
// imView.setImageBitmap(bmImg);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return bmImg;
}
}
xml file
<?xml version="1.0" encoding="utf-8"?>
<GridView xmlns:android="http://schemas.android.com/apk/res/android";
android:id="@+id/gridview"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:numColumns="auto_fit"
android:verticalSpacing="10dp"
android:horizontalSpacing="10dp"
android:columnWidth="90dp"
android:stretchMode="columnWidth"
android:gravity="center"
/>
urgent............
thnks
--
--
ωιтн яєgαя∂ѕ
Ratheesh * *...........
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