hii, in my android application there are number of images in drawable
folder. in my layout two buttons: back and forward button.on clicking
next and back buttons different-2 image get loaded on the same
layout(common for all images). Problem:i am able to load images in
next button click but as i click on back button no image got loaded.my
code is as:
public class SequencerActivity extends Activity implements
OnClickListener
{ private int imageCounter = 0; private ImageView imageLoader;
private int[] imageList = {R.drawable.image_wo_lbl_0,
R.drawable.image_wo_lbl_1, R.drawable.image_wo_lbl_2,
R.drawable.image_wo_lbl_3, R.drawable.image_wo_lbl_4,
R.drawable.image_wo_lbl_5,
R.drawable.image_wo_lbl_6, R.drawable.image_wo_lbl_8,
R.drawable.image_wo_lbl_9,R.drawable.image_wo_lbl_10,
R.drawable.image_wo_lbl_11};
@Override
public void onCreate(Bundle savedInstanceState)
{
setContentView(R.layout.parent_frame);//this one is the common
parent layout for all image views
super.onCreate(savedInstanceState);
imageLoader = (ImageView) findViewById(R.id.imageLoader);
ImageButton next = (ImageButton) findViewById(R.id.next);
ImageButton back = (ImageButton) findViewById(R.id.back);
next.setOnClickListener(this);
back.setOnClickListener(this);
//show the default image
this.loadImage(imageList[imageCounter]);
}
@Override
public void onClick(View v)
{
int imagePath = 0;
// TODO Auto-generated method stub
switch (v.getId())
{
case R.id.next:
Log.i("Tag","tag");
if(imageCounter < 25)//if(imageCounter < arrayList.length())
{
imageCounter++;
imagePath = imageList[imageCounter];
}
break;
case R.id.back:
if(imageCounter > 0)
{
imagePath = imageList[imageCounter];
}
break;
}
this.loadImage(imagePath);
}
private void loadImage(int imagePath)
{
imageLoader.setImageResource(imagePath);
}
hii, in my android application there are number of images in drawable
folder. in my layout two buttons: back and forward button.on clicking
next and back buttons different-2 image get loaded on the same
layout(common for all images). Problem:i am able to load images in
next button click but as i click on back button no image got loaded.my
code is as:
public class SequencerActivity extends Activity implements
OnClickListener
{ private int imageCounter = 0; private ImageView imageLoader;
private int[] imageList = {R.drawable.image_wo_lbl_0,
R.drawable.image_wo_lbl_1, R.drawable.image_wo_lbl_2,
R.drawable.image_wo_lbl_3, R.drawable.image_wo_lbl_4,
R.drawable.image_wo_lbl_5,
R.drawable.image_wo_lbl_6, R.drawable.image_wo_lbl_8,
R.drawable.image_wo_lbl_9,R.drawable.image_wo_lbl_10,
R.drawable.image_wo_lbl_11};
@Override
public void onCreate(Bundle savedInstanceState)
{
setContentView(R.layout.parent_frame);//this one is the common
parent layout for all image views
super.onCreate(savedInstanceState);
imageLoader = (ImageView) findViewById(R.id.imageLoader);
ImageButton next = (ImageButton) findViewById(R.id.next);
ImageButton back = (ImageButton) findViewById(R.id.back);
next.setOnClickListener(this);
back.setOnClickListener(this);
//show the default image
this.loadImage(imageList[imageCounter]);
}
@Override
public void onClick(View v)
{
int imagePath = 0;
// TODO Auto-generated method stub
switch (v.getId())
{
case R.id.next:
Log.i("Tag","tag");
if(imageCounter < 25)//if(imageCounter < arrayList.length())
{
imageCounter++;
imagePath = imageList[imageCounter];
}
break;
case R.id.back:
if(imageCounter > 0)
{
imagePath = imageList[imageCounter];
}
break;
}
this.loadImage(imagePath);
}
private void loadImage(int imagePath)
{
imageLoader.setImageResource(imagePath);
}
}
i am thinking there is some logical problem in couter increment /
decrement.i have used hard code 25 but just for test.i will use
ArrayList.length(). help please.Thanks.
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