I am navigating images with the clicks of
next and previous buttons.Here is my code:
package com.myapps.imagegallery;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
public class ImageGallery extends Activity {
/** Called when the activity is first created. */
int imgs[] = {R.drawable.bluehills,R.drawable.lilies,R.drawable.sunset,R.drawable.winter};
String desc[] = {"Blue Hills", "Lillies", "Sunset", "Winter" };
int counter=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
final ImageView imgView = (ImageView)findViewById(R.id.ImageView01);
imgView.setImageResource(imgs[counter]);
final TextView tvDesc = (TextView)findViewById(R.id.tvDesc);
Button btnNext = (Button)findViewById(R.id.btnNext);
btnNext.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View arg0) {
try{
// TODO Auto-generated method stub
if (counter < desc.length -1)
counter++;
imgView.setImageResource(imgs[counter]);
tvDesc.setText(desc[counter]);
}catch(Exception e)
{
Toast.makeText(ImageGallery.this, e.toString(), Toast.LENGTH_SHORT).show();
}
}
});
Button btnPrev = (Button)findViewById(R.id.btnPre);
btnPrev.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View arg0) {
// TODO Auto-generated method stub
try{
// TODO Auto-generated method stub
if (counter > 0)
counter--;
imgView.setImageResource(imgs[counter]);
tvDesc.setText(desc[counter]);
}catch(Exception e)
{
Toast.makeText(ImageGallery.this, e.toString(), Toast.LENGTH_SHORT).show();
}
}});
}
}
<?xml version="1.0" encoding="utf-8"?>
<AbsoluteLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<ImageView
android:id="@+id/ImageView01"
android:layout_x="70dip"
android:layout_width="200px"
android:layout_height="200px"
android:layout_y="90dip"
>
</ImageView>
<TextView
android:id="@+id/tvDesc"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="@string/hello"
android:layout_x="90px"
android:layout_y="300px"
/>
<Button
android:layout_x="47dip"
android:layout_height="wrap_content"
android:text="Previous"
android:layout_width="100px"
android:id="@+id/btnPre"
android:layout_y="341dip">
</Button>
<Button
android:layout_x="190dip"
android:layout_height="wrap_content"
android:text="
Next"
android:layout_width="100px"
android:id="@+id/btnNext"
android:layout_y="341dip">
</Button>
</AbsoluteLayout>
