Develop Reference

viewpaper in custom dialog like facebook

I am learning android programming
I want to create like this .? Can you help me hints
Tks.
P/s : I think use Viewpaper with custom dialog
package com.example.price.service;
import java.io.BufferedReader;
import java.io.File;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.Dialog;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.Bitmap.CompressFormat;
import android.graphics.drawable.ColorDrawable;
import android.os.AsyncTask;
import android.os.Parcelable;
import android.support.v4.view.PagerAdapter;
import android.support.v4.view.ViewPager;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;
import com.example.price.R;
import com.example.price.model.Photos_Json;
import com.example.price.model.Photos_List;
import com.example.price.model.Place;
import com.google.gson.Gson;
import com.nostra13.universalimageloader.cache.disc.impl.UnlimitedDiscCache;
import com.nostra13.universalimageloader.cache.disc.naming.HashCodeFileNameGenerator;
import com.nostra13.universalimageloader.cache.memory.impl.UsingFreqLimitedMemoryCache;
import com.nostra13.universalimageloader.core.DisplayImageOptions;
import com.nostra13.universalimageloader.core.ImageLoader;
import com.nostra13.universalimageloader.core.ImageLoaderConfiguration;
import com.nostra13.universalimageloader.core.assist.QueueProcessingType;
import com.nostra13.universalimageloader.core.download.BaseImageDownloader;
import com.nostra13.universalimageloader.utils.StorageUtils;
public class MyAdapter_Place extends ArrayAdapter<Place> {
Dialog dialog;
Activity context=null;
ArrayList<Place> myArray=null;
int layoutId;
Gallery gallery ;
ArrayList<String> ImageUrl=new ArrayList<String>();
String url="http://social-nice-price.appspot.com/webservices/Places/";
public MyAdapter_Place(Activity context, int resource, ArrayList<Place> arr) {
super(context, resource, arr);
// TODO Auto-generated constructor stub
this.context=context;
this.layoutId=resource;
this.myArray= arr;
}
public View getView(int position, View convertView,
ViewGroup parent) {
// lay Layout
LayoutInflater inflater=context.getLayoutInflater();
convertView=inflater.inflate(layoutId, null);
// khai bao cac Phan tu de SETTing sau nay
TextView Txt_sellingPrice=(TextView)convertView.findViewById(R.id.Txt_sellingPrice);
TextView Txt_priceAfterDiscount=(TextView)convertView.findViewById(R.id.Txt_priceAfterDiscount);
TextView Txt_address=(TextView)convertView.findViewById(R.id.Txt_address);
TextView Txt_updateDate=(TextView)convertView.findViewById(R.id.Txt_updateDate);
TextView Txt_hotline=(TextView)convertView.findViewById(R.id.Txt_hotline);
TextView Txt_name=(TextView)convertView.findViewById(R.id.Txt_name);
TextView Txt_website=(TextView)convertView.findViewById(R.id.Txt_website);
gallery = (Gallery)convertView.findViewById(R.id.gallery1);
ImageView ChiDuong=(ImageView)convertView.findViewById(R.id.Imageview_chiduong);
// Lya phan tu tai vi tri position
Place place=myArray.get(position);
// Setting data
Txt_sellingPrice.setText("Giá Bán : "+place.getSellingPrice());
Txt_priceAfterDiscount.setText("Giá Đã Giảm : "+place.getPriceAfterDiscount());
Txt_address.setText("Địa Chỉ : "+place.getAddress());
//Txt_productCode.setText("Mã Sản Phẩm : "+place.getProductCode());
Txt_updateDate.setText("Ngày Cập Nhật : "+place.UpdateDate);
Txt_hotline.setText("Hotline : " +place.getHotLine());
Txt_name.setText("Tên Quán : " +place.getName());
Txt_website.setText("Website : "+place.getWebsite());
//hien thi anh viewpager
// lay du lieu json ,=> hinh anh
Gson(url+place.ProductCode+"/");
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position,
long id) {
String temp=ImageUrl.get(position);
//Toast.makeText(context, temp, Toast.LENGTH_LONG).show();
// dialog hien khi click vao anh trong gallery
dialog = new Dialog(context);
dialog.setContentView(R.layout.custom_dialog);
ViewPager pager=(ViewPager)dialog.findViewById(R.id.pager);
pager.setAdapter(new ImagePagerAdapter(ImageUrl));
pager.setCurrentItem(0);
// ImageView imgselect=(ImageView)dialog.findViewById(R.id.Image_dialog);
dialog.getWindow().setBackgroundDrawable(new ColorDrawable(android.graphics.Color.TRANSPARENT));
dialog.show();
//imageLoader.displayImage(temp, imgselect,options);
}
});
ChiDuong.setOnClickListener(new OnClickListener() {
#Override
public void onClick(View v) {
// TODO Auto-generated method stub
}
});
return convertView;
}
public void Gson(String url){
String json ="";
try {
json = readUrl(url);
}
catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if(json!="" && json!=null){
Gson gson = new Gson();
Photos_List page = gson.fromJson(json, Photos_List.class);
List<Photos_Json> temp=page.place.Photos;
int i=0;
for(Photos_Json a:temp){
ImageUrl.add(a.Link);
}
}
gallery.setAdapter(new ImageGalleryAdapter1());
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position,
long id) {
}
});
}
public static String readUrl(String urlString) throws Exception {
BufferedReader reader = null;
try {
URL url = new URL(urlString);
reader = new BufferedReader(new InputStreamReader(url.openStream()));
StringBuffer buffer = new StringBuffer();
int read;
char[] chars = new char[1024];
while ((read = reader.read(chars)) != -1)
buffer.append(chars, 0, read);
return buffer.toString();
} finally {
if (reader != null)
reader.close();
}
}
ImageLoader imageLoader;
DisplayImageOptions options;
private class ImageGalleryAdapter1 extends BaseAdapter {
private int[] imageUrls1={R.drawable.ic_home,R.drawable.bestbuy};
#Override
public int getCount() {
return ImageUrl.size();
}
#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) {
ImageView imageView = (ImageView) convertView;
if (imageView == null) {
imageView = (ImageView)context.getLayoutInflater().inflate(R.layout.item_gallery_image, parent, false);
}
options = new DisplayImageOptions.Builder()
.cacheInMemory(true)
.cacheOnDisc(true)
.considerExifParams(true)
.bitmapConfig(Bitmap.Config.RGB_565)
.build();
imageLoader=ImageLoader.getInstance();
File cacheDir = StorageUtils.getCacheDirectory(context);
ImageLoaderConfiguration config = new ImageLoaderConfiguration.Builder(context)
.memoryCacheExtraOptions(480, 800) // default = device screen dimensions
.discCacheExtraOptions(480, 800, CompressFormat.JPEG, 75, null)
.taskExecutor(AsyncTask.THREAD_POOL_EXECUTOR)
.taskExecutorForCachedImages(AsyncTask.THREAD_POOL_EXECUTOR)
.threadPoolSize(3) // default
.threadPriority(Thread.NORM_PRIORITY - 1) // default
.tasksProcessingOrder(QueueProcessingType.FIFO) // default
.denyCacheImageMultipleSizesInMemory()
.memoryCache(new UsingFreqLimitedMemoryCache(2 * 1024 * 1024)) // default
.memoryCacheSize(2 * 1024 * 1024)
.discCache(new UnlimitedDiscCache(cacheDir)) // default
.discCacheSize(50 * 1024 * 1024)
.discCacheFileCount(100)
.discCacheFileNameGenerator(new HashCodeFileNameGenerator()) // default
.imageDownloader(new BaseImageDownloader(context)) // default
.defaultDisplayImageOptions(DisplayImageOptions.createSimple()) // default
.build();
imageLoader.init(config);
imageLoader.displayImage(ImageUrl.get(position), imageView, options);
//imageView.setImageResource(imageUrls[position]);
return imageView;
}
}
private class ImagePagerAdapter extends PagerAdapter {
private ArrayList<String> images=new ArrayList<String>();
private LayoutInflater inflater;
ImagePagerAdapter(ArrayList<String> images) {
this.images = images;
// inflater = (LayoutInflater) context.getSystemService(context.LAYOUT_INFLATER_SERVICE);
}
#Override
public void destroyItem(ViewGroup container, int position, Object object) {
container.removeView((View) object);
}
#Override
public int getCount() {
return images.size();
}
#Override
public Object instantiateItem(ViewGroup view, int position) {
LayoutInflater inflater = (LayoutInflater) view.getContext()
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View imageLayout = inflater.inflate(R.layout.item_paper_image, view, false);
assert imageLayout != null;
ImageView imageView = (ImageView) imageLayout.findViewById(R.id.image);
final ProgressBar spinner = (ProgressBar) imageLayout.findViewById(R.id.loading);
imageLoader.displayImage("R.drawable.bestbuy", imageView, options);
view.addView(imageLayout, 0);
return imageLayout;
}
#Override
public boolean isViewFromObject(View view, Object object) {
return view.equals(object);
}
#Override
public void restoreState(Parcelable state, ClassLoader loader) {
}
#Override
public Parcelable saveState() {
return null;
}
}
}
item_paper_image.xml
<ImageView
android:id="#+id/image"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:adjustViewBounds="true"
/>
<ProgressBar
android:id="#+id/loading"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:visibility="gone" />
custom_dialog.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content" > <android.support.v4.view.ViewPager
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/pager"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</RelativeLayout>

How to load images using android baseadapter?

My project works without error, but upon loading, images are not loaded in the Listview.
Here is a sample image
sample at the first working image
But after dragging ListView, all images loads.
sample draggened image load
Please Help. Sorry bad english.
Categoryadapter.java
package com.medyasef.dernek.tjod;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.http.AndroidHttpClient;
import android.os.AsyncTask;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.HttpStatus;
import org.apache.http.client.methods.HttpGet;
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 java.util.HashMap;
import java.util.List;
/**
* Created by olkunmustafa on 26.09.2013.
*/
public class CategoryAdapter extends BaseAdapter {
private String LOG_NAME = "HATA";
private List<Categoryicerikler> list_view;
private HashMap<Integer,Bitmap> bitmaplist;
private Context mContext;
private Categories categories = new Categories();
public CategoryAdapter(List<Categoryicerikler> list_view, Context mContext) {
this.list_view = list_view;
this.mContext = mContext;
bitmaplist = new HashMap<Integer, Bitmap>();
for (int i = 0; i < list_view.size() ; i++) {
Categoryicerikler bitmap_icerikler = list_view.get(i);
setBitmapFromURL(bitmap_icerikler.getCategory_post_image(),i);
}
}
/*
Burada resimleri çekmek için thread oluşturuyoruz.
Resim linkini ve ImageView'i veriyoruz ve ekrana basmasını sağlıyoruz.
*/
public void setBitmapFromURL(final String src,final int value) {
new Thread(
new Runnable()
{
#Override
public void run() {
HttpURLConnection connection= null;
try {
URL url = new URL(src);
connection = (HttpURLConnection) url.openConnection();
connection.setRequestMethod("GET");
connection.setDoInput(true);
connection.setDoOutput(true);
connection.connect();
InputStream input = connection.getInputStream();
final Bitmap myBitmap = BitmapFactory.decodeStream(input);
try {
bitmaplist.put(value,myBitmap);
}
catch (Exception e){
Log.d(LOG_NAME,e.getMessage());
Log.d(LOG_NAME,"Resim ekleme işlemi başarısız.");
}
} catch (IOException e) {
e.printStackTrace();
}
finally {
connection.disconnect();
}
}
}).start();
}
#Override
public int getCount() {
return list_view.size();
}
#Override
public Object getItem(int position) {
return list_view.get(position);
}
#Override
public long getItemId(int position) {
return list_view.indexOf(getItem(position));
}
#Override
public View getView(int position, View convertview, ViewGroup viewGroup) {
Categoryicerikler categoryicerikler = list_view.get(position);
ViewHolder holder = null;
if(convertview==null){
Log.d(LOG_NAME,"sonuc");
convertview = LayoutInflater.from(mContext).inflate(R.layout.categories,viewGroup,false);
holder = new ViewHolder();
holder.txtTitle = (TextView) convertview.findViewById(R.id.category_posttitle);
holder.txtDate = (TextView) convertview.findViewById(R.id.category_postdate);
holder.imageView = (ImageView) convertview.findViewById(R.id.category_image);
convertview.setTag(holder);
Categories.categoryAdapter.notifyDataSetChanged();
}
else {
holder = (ViewHolder) convertview.getTag();
}
holder.txtTitle.setText(categoryicerikler.getCategory_posttitle());
holder.txtDate.setText(categoryicerikler.getCategory_postdate());
try {
holder.imageView.setImageBitmap(bitmaplist.get(position));
}
catch (Exception e){
}
return convertview;
}
/*private view holder class*/
private class ViewHolder {
ImageView imageView;
TextView txtTitle;
TextView txtDate;
}
}
Categoryicerikler.java
package com.medyasef.dernek.tjod;
import android.graphics.Bitmap;
import android.widget.ImageView;
/**
* Created by olkunmustafa on 26.09.2013.
*/
public class Categoryicerikler {
private String category_posttitle;
private String category_postdate;
private String category_post_content;
private String category_post_image;
public Categoryicerikler( String category_posttitle, String category_postdate, String category_post_content,String post_image) {
this.category_posttitle = category_posttitle;
this.category_postdate = category_postdate;
this.category_post_content = category_post_content;
this.category_post_image = post_image;
}
public String getCategory_posttitle() {
return category_posttitle;
}
public void setCategory_posttitle(String category_posttitle) {
this.category_posttitle = category_posttitle;
}
public String getCategory_postdate() {
return category_postdate;
}
public void setCategory_postdate(String category_postdate) {
this.category_postdate = category_postdate;
}
public String getCategory_post_content() {
return category_post_content;
}
public void setCategory_post_content(String category_post_content) {
this.category_post_content = category_post_content;
}
public String getCategory_post_image() {
return category_post_image;
}
public void setCategory_post_image(String category_post_image) {
this.category_post_image = category_post_image;
}
}
Categories.java
package com.medyasef.dernek.tjod;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.SystemClock;
import android.text.Html;
import android.util.Log;
import android.webkit.WebSettings;
import android.webkit.WebView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONException;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.HashMap;
import java.util.List;
/**
* Created by olkunmustafa on 25.09.2013.
*/
public class Categories extends Activity {
private List<Categoryicerikler> content_list;
public static CategoryAdapter categoryAdapter;
private ListView main_category;
private static HashMap<Integer,Bitmap> bitmaplist;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main_categories);
main_category = (ListView) findViewById(R.id.main_category);
new GetCategory().execute();
}
private class GetCategory extends AsyncTask<Void,Void,String> {
#Override
protected void onPreExecute() {
Toast.makeText(Categories.this, "İslem Baslıyor Bekleyiniz", Toast.LENGTH_SHORT).show();
}
#Override
protected String doInBackground(Void... voids) {
/*
Burada internete bağlanıp json veriyi string cinsinden çekiyoruz.
*/
InternetConnection internetcon = new InternetConnection();
String json_result = internetcon.get_json_data();
return json_result;
}
#Override
protected void onPostExecute(String data) {
/*
Gelen string veriyi json_to_list_view metoduna veriyorum
Bu metot gelen json verisinin içeriklerini doldurarak bana birt liste dönderir.
*/
try {
content_list = GetJson.json_to_list_view(data);
} catch (JSONException e) {
Log.d("Json_Error","Json çekilirken hata oluştu");
}
categoryAdapter = new CategoryAdapter(content_list,Categories.this);
main_category.setAdapter(categoryAdapter);
}
}
}

If you simply want to load images in a list view, I would recommend you to use Picasso
Its simple, fast and does nearly everything automatically for you. You also don't have to care about canceling request on activity destroy. So I guess this would be the best start for you, if you simply want to load images into a ImageView in a ListView.
for instance in your adapter you could use:
Picasso.with(context)
.load(url)
.placeholder(R.drawable.placeholder)
.error(R.drawable.error)
.into(imageView);
Where imageview is the ImageView of your listview cell

Use universal image loader library and then following way
---------------------------------------------------------
1 - options = new DisplayImageOptions.Builder()
.showStubImage(R.drawable.physicalgift_normal)
.cacheInMemory()
.cacheOnDisc()
.displayer(new RoundedBitmapDisplayer(10))
.build();
imageLoader=ImageLoader.getInstance();
ImageLoaderConfiguration imgconfig=ImageLoaderConfiguration.createDefault(context);
imageLoader.init(imgconfig);
----------------------------------------------------------
2 - String url=list.get(position).getThumbUrl();
if(url != null && url !="")
imageLoader.displayImage(Utils.getEncodedUrl(url), holder.img, options);
------------------------------------------------------------
3 - SubCatAdapter adapter = new SubCatAdapter(SubCategoryActivity.this,
mlist);
list.setAdapter(adapter);
------------------------------------------------------------
full example is here
public class SubCatAdapter extends BaseAdapter {
private ArrayList<SubcategoryData> list;
private LayoutInflater inflator;
public ImageLoader imageLoader;
private DisplayImageOptions options;
public SubCatAdapter(Context context, ArrayList<SubcategoryData> mlist) {
super();
this.list = mlist;
this.inflator = LayoutInflater.from(context);
options = new DisplayImageOptions.Builder()
.showStubImage(R.drawable.physicalgift_normal)
.cacheInMemory()
.cacheOnDisc()
.displayer(new RoundedBitmapDisplayer(10))
.build();
imageLoader=ImageLoader.getInstance();
ImageLoaderConfiguration imgconfig=ImageLoaderConfiguration.createDefault(context);
imageLoader.init(imgconfig);
}
public int getCount() {
// TODO Auto-generated method stub
return list.size();
}
public Object getItem(int position) {
// TODO Auto-generated method stub
return list.get(position);
}
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
View view = convertView;
ViewHolder holder = null;
if (convertView == null) {
view = inflator.inflate(R.layout.row_subcat, null);
holder = new ViewHolder();
holder.txt_Name = (TextView) view.findViewById(R.id.txt_name);
holder.img=(ImageView)view.findViewById(R.id.img_row);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
holder.txt_Name.setText(list.get(position).getName());
String url=list.get(position).getThumbUrl();
if(url != null && url !="")
imageLoader.displayImage(Utils.getEncodedUrl(url), holder.img, options);
return view;
}
static class ViewHolder {
TextView txt_Name;
ImageView img;
}
}

Saving image to SD card not working

Having a problem at the bottom, I'm trying to create a case to save the image to SD card yet it isn't working and I don't know why.
I think it's got something to do with the getRawResource but still not sure.
Thanks for any help!!!
package com.nk_apps.random;
import java.io.InputStream;
import android.app.Activity;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.Toast;
#SuppressWarnings("deprecation")
public class Main extends Activity {
private Gallery gallery;
private ImageView imgView;
private Integer[] imgId = {
R.drawable.image1,
R.drawable.image2,
R.drawable.image3,
R.drawable.image4,
R.drawable.image5,
R.drawable.image6,
};
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
imgView = (ImageView)findViewById(R.id.imageView01);
imgView.setImageResource(imgId[0]);
gallery = (Gallery) findViewById(R.id.examplegallery);
gallery.setAdapter(new AddImgAdp(this));
gallery.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position, long id) {
imgView.setImageResource(imgId[position]);
}
});
}
public class AddImgAdp extends BaseAdapter {
int GalItemBg;
private Context cont;
public AddImgAdp(Context c) {
cont = c;
TypedArray typArray = obtainStyledAttributes(R.styleable.Gallery1);
GalItemBg = typArray.getResourceId(R.styleable.Gallery1_android_galleryItemBackground, 0);
typArray.recycle();
}
public int getCount() {
return imgId.length;
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imgView = new ImageView(cont);
imgView.setImageResource(imgId[position]);
imgView.setLayoutParams(new Gallery.LayoutParams(170, 270));
imgView.setScaleType(ImageView.ScaleType.FIT_XY);
imgView.setBackgroundResource(GalItemBg);
return imgView;}
public void onClick(View v) {
// TODO Auto-generated method stub
switch (v.getId()){
case R.id.bsaveImage:
InputStream inps = getResources().openRawResource(GalItemBg);
Bitmap bmp = BitmapFactory.decodeStream(inps);
try{
MediaStore.Images.Media.insertImage(getContentResolver(), bmp, "Title" , "Hip-Hop Wallpapers");
Toast saveToast = Toast.makeText(Main.this, "The image has been saved.", Toast.LENGTH_SHORT);
saveToast.show();
}catch(Exception e){
e.printStackTrace();
}
break;
}
}
} }

Did you verify you have write permission to sdcard ? (this is WRITE_EXTERNAL_STORAGE)
Also, you should make sure you look at the right mount point to find the image (can be "internal sdcard" for some devices, for example).

CustomAdapter with multiple getView in android

I have an activity, where in i display list of media files i.e Video, Audio, Images and Animations. On clicking the list item, (as of now Images), the activity must display all the images in the local assets folder in grid View. To do so, i use a single adapter and have a switch case in my getView() function. Depending on the options that is set in the constructor, the switch cases would execute. It works fine for the ListView display, but i am unable to display list of images in grid View. Any help would be apprecaited. Thanks in advance. Here is my code:
package com.bookshelf;
import java.io.File;
import java.io.FilenameFilter;
import java.io.IOException;
import java.util.ArrayList;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.res.AssetManager;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.media.ThumbnailUtils;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class MediaGalaryListActivity extends Activity implements
OnItemClickListener {
private ArrayList<String> mGalary = new ArrayList<String>();
private Bitmap mBitArray[];
private Gallery mMediaGallery;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.mediagalary);
mGalary.add("Videos");
mGalary.add("Audios");
mGalary.add("Images");
mGalary.add("Animation");
ListView lv = (ListView) findViewById(R.id.mediaGal);
mMediaGallery = (Gallery) findViewById(R.id.mediaGallery);
lv.setAdapter(new MediaGalaryAdapter(this, mGalary, 1));
lv.setOnItemClickListener(this);
}
class MediaGalaryAdapter extends BaseAdapter {
private ArrayList<String> mGal = new ArrayList<String>();
private Bitmap[] mImgArray;
private Context context;
private LayoutInflater mInflate;
private int mAdapterOpt;
public MediaGalaryAdapter(Context ctx, ArrayList<String> gal,
int adapOpt) {
context = ctx;
mGal = gal;
mAdapterOpt = adapOpt;
mInflate = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public MediaGalaryAdapter(Context ctx, Bitmap[] imgArray, int adapOpt) {
context = ctx;
mImgArray = imgArray;
mInflate = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mAdapterOpt = adapOpt;
}
public int getCount() {
int size = 0;
switch (mAdapterOpt) {
case 1:
size = mGal.size();
break;
case 2:
size = mImgArray.length;
break;
}
return size;
}
public Object getItem(int position) {
return null;
}
public long getItemId(int position) {
return 0;
}
public View getView(int position, View convertView, ViewGroup parent) {
switch (mAdapterOpt) {
case 1:
convertView = mInflate.inflate(R.layout.medialayout, null);
TextView tv = (TextView) convertView.findViewById(R.id.text);
tv.setText(mGal.get(position));
break;
case 2:
ImageView imgView;
convertView = mInflate.inflate(R.layout.image_gallery, null);
imgView = new ImageView(context);
imgView.setImageBitmap(mImgArray[position]);
imgView.setScaleType(ImageView.ScaleType.CENTER_CROP);
imgView.setLayoutParams(new GridView.LayoutParams(100, 100));
imgView.setPadding(8, 8, 8, 8);
break;
}
return convertView;
}
}
// For filtering the filename with extensions
class FileNamFilter implements FilenameFilter {
private String mFileExtn;
public FileNamFilter(String extn) {
mFileExtn = "." + extn;
}
public boolean accept(File dir, String filename) {
return filename.endsWith(mFileExtn);
}
}
public void onItemClick(AdapterView<?> parent, View view, int pos, long id) {
String mediaType = mGalary.get(pos);
String list[] = null;
AssetManager assetManager = getAssets();
try {
list = assetManager.list("Immersive");
mBitArray = new Bitmap[list.length];
System.out.println("Length of list ="+list.length);
for (int i = 0, idx = 0; i < list.length; i++)
{
if (list[i].endsWith(".png") || list[i].endsWith(".gif")
|| list[i].endsWith(".jpeg")
|| list[i].endsWith(".jpg"))
{
mBitArray[idx++] = BitmapFactory.decodeStream(assetManager
.open("Immersive/" + list[i]));
System.out.println("Image at position "+i+" is "+list[i]);
}
;
}
mMediaGallery
.setAdapter(new MediaGalaryAdapter(this, mBitArray, 2));
} catch (IOException e) {
e.printStackTrace();
}
AlertDialog.Builder build = new AlertDialog.Builder(this);
build.setTitle("InProgress....");
// build.setIcon(android.R.drawable.)
build.setMessage(mediaType + " is Inprogress...");
build.setPositiveButton("Ok", new OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// finish();
}
});
AlertDialog alert = build.create();
alert.show();
// Toast.makeText(getApplicationContext(), mediaType, 30).show();
}
class MediaGalary {
private ImageView mImage;
private TextView mName;
public MediaGalary(ImageView img, TextView strName) {
mImage = img;
mName = strName;
}
public ImageView getmImage() {
return mImage;
}
public void setmImage(ImageView mImage) {
this.mImage = mImage;
}
public TextView getmName() {
return mName;
}
public void setmName(TextView mName) {
this.mName = mName;
}
}
}

each application in the device will be allocated some amount of memory by the DVM. you are getting out of memory error becoz your application is exceeding the memory the allocated by dvm to ur application. for example in froyo, memory allocated for an application is 16Mb. if your application exceeding more than 16Mb, you will get out of memory error. The solution for this is you have to compress the images you are using in your application, and you have to clear all the collection you are using. try clearing all collection you are using once there job is done. you can check how much memory has been consumed by your application in ddms using heap tool. hope this will be helpfull for you.

How to hide sdcard path name?

Hi I created a media player. It displays the number of video thumbnails. If I click any video thumbnail, the video will play, at the same time /mnt/sdcard/funny baby.3gb file path name is also displayed at this bottom. I want to hide that. Can someone help me out here?
source code:
package videothumb.videothumb;
//import com.example.android.apis.R;
//import popupTest.popupTest.R;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.TypedArray;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.os.Bundle;
import android.provider.MediaStore;
import android.view.Gravity;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.Window;
import android.view.WindowManager;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.Gallery;
import android.widget.ImageView;
import android.widget.PopupWindow;
//import android.widget.ListView;
//import android.widget.TextView;
import android.widget.Toast;
import android.widget.AdapterView.OnItemClickListener;
import android.net.Uri;
//import android.view.Window;
//import android.view.WindowManager;
//import android.widget.GridView;
import android.graphics.Color;
//import android.view.MotionEvent;
//import android.view.View.OnTouchListener;
import android.graphics.Canvas;
import android.graphics.Bitmap.Config;
import android.graphics.Shader.TileMode;
import android.graphics.PorterDuff.Mode;
import android.graphics.Shader.TileMode;
import android.graphics.PorterDuffXfermode;
public class videothumb extends Activity
{
private final static Uri MEDIA_EXTERNAL_CONTENT_URI = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
private final static String _ID = MediaStore.Video.Media._ID;
private final static String MEDIA_DATA = MediaStore.Video.Media.DATA;
//flag for which one is used for images selection
private Gallery _gallery;
private Cursor _cursor;
private int _columnIndex;
private int[] _videosId;
private Uri _contentUri;
//private int video_column_index;
protected Context _context;
//PopupWindow pw = null;
/** Called when the activity is first created. */
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
_context = getApplicationContext();
setContentView(R.layout.main);
//set GridView for gallery
_gallery = (Gallery) findViewById(R.id.videoGrdVw);
//set default as external/sdcard uri
_contentUri = MEDIA_EXTERNAL_CONTENT_URI;
//initialize the videos uri
//showToast(_contentUri.getPath());
initVideosId();
//set gallery adapter
setGalleryAdapter();
}
private void setGalleryAdapter() {
_gallery.setAdapter(new VideoGalleryAdapter(_context));
_gallery.setOnItemClickListener(videogridlistener);
}
private void initVideosId() {
try
{
//Here we set up a string array of the thumbnail ID column we want to get back
String [] proj={_ID};
// Now we create the cursor pointing to the external thumbnail store
_cursor = managedQuery(_contentUri,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null); // Order-by clause (ascending by name)
int count= _cursor.getCount();
System.out.println("total"+_cursor.getCount());
// We now get the column index of the thumbnail id
_columnIndex = _cursor.getColumnIndex(_ID);
//initialize
_videosId = new int[count];
//move position to first element
_cursor.moveToFirst();
for(int i=0;i<count;i++)
{
int id = _cursor.getInt(_columnIndex);
//
_videosId[i]= id;
//
_cursor.moveToNext();
//
}
}catch(Exception ex)
{
showToast(ex.getMessage().toString());
}
}
protected void showToast(String msg)
{
Toast.makeText(_context, msg, Toast.LENGTH_LONG).show();
}
private AdapterView.OnItemClickListener videogridlistener = new OnItemClickListener() {
public void onItemClick(AdapterView parent, View v, int position,long id) {
// Now we want to actually get the data location of the file
String [] proj={MEDIA_DATA};
// We request our cursor again
_cursor = managedQuery(_contentUri,
proj, // Which columns to return
null, // WHERE clause; which rows to return (all rows)
null, // WHERE clause selection arguments (none)
null);
//System.gc();
// video_column_index = _cursor.getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
_columnIndex = _cursor.getColumnIndex(MEDIA_DATA);
// Lets move to the selected item in the cursor
_cursor.moveToPosition(position);
String filename = _cursor.getString(_columnIndex);
Intent intent = new Intent(videothumb.this, ViewVideo.class);
intent.putExtra("videofilename", filename);
startActivity(intent);
showToast(filename);
// Toast.makeText(videothumb.this, "" + position, Toast.LENGTH_SHORT).show();
}
};
private class VideoGalleryAdapter extends BaseAdapter
{
int mGalleryItemBackground;
public VideoGalleryAdapter(Context c)
{
_context = c;
TypedArray a = obtainStyledAttributes(R.styleable.Gallery1);
mGalleryItemBackground = a.getResourceId(
R.styleable.Gallery1_android_galleryItemBackground, 0);
a.recycle();
}
public int getCount()
{
return _videosId.length;
}
public Object getItem(int position)
{
return position;
}
public long getItemId(int position)
{
return position;
}
public View getView(int position, View convertView, ViewGroup parent)
{
ImageView imgVw= new ImageView(_context);
try
{
if(convertView!=null)
{
imgVw= (ImageView) convertView;
}
imgVw.setImageBitmap(getImage(_videosId[position]));
imgVw.setAdjustViewBounds(true);
//imgVw.setBackgroundColor(Color.WHITE);
imgVw.setLayoutParams(new Gallery.LayoutParams(650, 550));
imgVw.setPadding(1,1,1,1);
imgVw.setScaleType(ImageView.ScaleType.FIT_XY);
}
catch(Exception ex)
{
System.out.println("StartActivity:getView()-1 : ex " + ex.getClass() +", "+ ex.getMessage());
}
return imgVw;
}
// Create the thumbnail on the fly
private Bitmap getImage(int id) {
Bitmap thumb = MediaStore.Video.Thumbnails.getThumbnail(getContentResolver(),id, MediaStore.Video.Thumbnails.MICRO_KIND, null);
System.out.println("ff"+MediaStore.Video.Thumbnails.getThumbnail(getContentResolver(),id, MediaStore.Video.Thumbnails.MICRO_KIND, null));
return thumb;
}
}
}

Are you sure it is not the line in your code that says:
showToast(filename);
This is displaying a message with the filename