I am trying to load images from a server, according to their id number. Which would be the best method to retrive it from the webservice?
package com.crispsys;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import android.app.Activity;
import android.app.ProgressDialog;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class imageviewer extends Activity {
/** Called when the activity is first created. */
Bitmap image;
private TextView ordernumber;
ImageView imageView;
private Button butt;
String Str="image",ordno;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.imageviewerr);
this.butt = (Button) this.findViewById(R.id.getbutt);
this.imageView =(ImageView) findViewById(R.id.blodig);
this.ordernumber=(TextView)this.findViewById(R.id.ordernotext);
final Bundle getdata = getIntent().getExtras();
if (getdata != null)
{
ordno=getdata.getString("orono");
ordernumber.setText(ordno);
}
this.butt.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
Toast.makeText(getApplicationContext(),"loading" , Toast.LENGTH_LONG).show();
URL url = null;
try
{
url = new URL("http://www.cyberstudents.in/aaa/car.jpg");
}
catch (MalformedURLException e)
{
e.printStackTrace();
}
try {
image = BitmapFactory.decodeStream(url.openStream());
}
catch (IOException e)
{
e.printStackTrace();
}
imageView.setImageBitmap(image);
}
});
}
}
XML File:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:background="@drawable/cr_isp"
android:layout_height="match_parent"
android:orientation="vertical" >
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:gravity="center"
android:paddingTop="20dp"
android:layout_height="wrap_content" >
<TextView
android:id="@+id/ordernotext"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="#8B8682"
android:text="" />
</TableRow>
<TableRow
android:id="@+id/tableRow1"
android:layout_width="match_parent"
android:gravity="center"
android:paddingTop="20dp"
android:layout_height="wrap_content" >
<Button
android:id="@+id/getbutt"
android:layout_width="210dp"
android:layout_height="40dp"
android:background="@drawable/bcbut"
android:textColor="#8B8682"
android:text="Get Block Dig" />
</TableRow>
<TableRow
android:id="@+id/tableRow2"
android:layout_width="match_parent"
android:gravity="center"
android:paddingTop="20dp"
android:layout_height="wrap_content" >
<ImageView
android:id="@+id/blodig"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_launcher" />
</TableRow>
</LinearLayout>
Tried with this code, but I could only work with small sized images. When I go for a big sized image, it doesn't work. It remains the same, I can't find any error. It is showing the same screen.
You can use Asynchronous Image loader to load images asynchronously. Check the below code.
private class FetchImageTask extends AsyncTask<String, Integer, Bitmap> {
@Override
protected Bitmap doInBackground(String... arg0) {
Bitmap b = null;
try {
b = BitmapFactory.decodeStream((InputStream) new URL(arg0[0]).getContent());
}
catch (MalformedURLException e) {
e.printStackTrace();
}
catch (IOException e) {
e.printStackTrace();
}
return b;
}
}
To implement use this code.
new FetchImageTask() {
@Override
protected void onPostExecute(Bitmap result) {
if (result != null) {
image.setImageBitmap(result);
}
}
}.execute("IMAGE_URL");
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