I’m working on a project which is saving some images to sdcard and now I have to create viewflow to show this images. I’m getting the images by it’s Id from sdCard and my problem now is how to swipe between different images. Here is the code I’m using :
import java.io.File;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ImageButton;
public class Cards extends Activity {
public Cursor cursor;
int position;
int indexxx;
Bitmap b;
int objectId;
int cardsId;
private ViewFlow viewFlow;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.circle_layout);
UserDatabaseHelper userDbHelper = new UserDatabaseHelper(this, null, 1);
userDbHelper.initialize(this);
final int cardId = getIntent().getIntExtra("card_id",0);
Log.i("Card Id ","Card Id : "+cardId);
final int collId = getIntent().getIntExtra("collection_id",0);
Log.i("Collection Id ","Collection Id : "+collId);
position = getIntent().getIntExtra("position",0);
Log.i("position","position : "+position);
String cardSQL = "SELECT cm.objectId "+
"FROM cardmedias AS cm "+
"INNER JOIN cards AS cd "+
"ON (cm.cardId = cd.objectId) "+
"WHERE cd.collectionId="+collId;
Cursor cards = userDbHelper.executeSQLQuery(cardSQL);
if (cards.getCount() == 0) {
Log.i("", "No Image file");
cards.close();
} else if (cards.getCount() > 0) {
for (cards.move(0); cards.moveToNext(); cards.isAfterLast()) {
cardsId = Integer.parseInt(cards.getString(cards
.getColumnIndex("objectId")));
Log.i("", "cards objectId : " + cardsId);
String path = Environment.getExternalStorageDirectory()
+ "/.Stampii/MediaCard/" + cardsId + ".png";
Log.i("", "path : " + path);
}
}
String sql = "SELECT objectId FROM cardmedias WHERE cardId=" + cardId
+ " LIMIT 1";
Cursor cursor = userDbHelper.executeSQLQuery(sql);
if (cursor.getCount() == 0) {
Log.i("", "No Image file");
cursor.close();
} else if (cursor.getCount() > 0) {
for (cursor.move(0); cursor.moveToNext(); cursor.isAfterLast()) {
objectId = Integer.parseInt(cursor.getString(cursor
.getColumnIndex("objectId")));
Log.i("", "objectId : " + objectId);
}
}
Button info = (Button) findViewById(R.id.info_button);
info.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Intent intent = new Intent(Cards.this, SingleCardInfo.class);
intent.putExtra("card_id", cardId);
intent.putExtra("collection_id", collId);
startActivity(intent);
}
});
Button back = (Button) findViewById(R.id.back_button);
back.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
final ArrayList<Bitmap> images = new ArrayList<Bitmap>();
String path = Environment.getExternalStorageDirectory()+"/.Stampii/MediaCard/"+objectId+".png";
BitmapFactory.Options options = new BitmapFactory.Options();
options.inTempStorage = new byte[16*1024];
Bitmap b = BitmapFactory.decodeFile(path, options);
images.add(b);
viewFlow = (ViewFlow) findViewById(R.id.viewflow);
viewFlow.setAdapter(new ImageAdapter(this, images),position);
ImageButton prevBtn = (ImageButton) findViewById(R.id.previous_button);
prevBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
indexxx = viewFlow.getSelectedItemPosition()-1;
if (indexxx>=0) {
viewFlow.setAdapter(new ImageAdapter(Cards.this, images),indexxx);
viewFlow.setSelectedItemPosition(indexxx);
Log.i("indexxx", "indexxx : " + indexxx);
}
}
});
ImageButton nextBtn = (ImageButton) findViewById(R.id.next_button);
nextBtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
indexxx = viewFlow.getSelectedItemPosition()+1;
if (indexxx<=images.size()) {
viewFlow.setAdapter(new ImageAdapter(Cards.this, images),indexxx);
viewFlow.setSelectedItemPosition(indexxx);
Log.i("indexxx", "indexxx : " + indexxx);
}
}
});
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
viewFlow.onConfigurationChanged(newConfig);
}
}
And here is my ImageAdapter class :
import java.util.ArrayList;
import android.content.Context;
import android.graphics.Bitmap;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
public class ImageAdapter extends BaseAdapter {
private LayoutInflater mInflater;
private ArrayList<Bitmap> ids = new ArrayList<Bitmap>();
private Bitmap bitmap;
public ImageAdapter(Context context, ArrayList<Bitmap> images) {
mInflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
ids = images;
}
@Override
public int getCount() {
return 1;
}
@Override
public Object getItem(int position) {
return position;
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
if (convertView == null) {
convertView = mInflater.inflate(R.layout.image_item, null);
}
((ImageView) convertView.findViewById(R.id.imgView)).setImageBitmap(ids.get(position));
return convertView;
}
}
Any idea how can I set the next or previous image by getting it’s ID from database, finding the image with that name and adding it in viewflow and swipe. I don’t want someone to write the code instead of me… I’m stuck on the idea how can I do this… So if someone can help me with suggestions, ideas or something else just shoot it.
Thanks in advance!
Here is how I solve this issue :