This is the squeal of my previous post to create custom image gallery.
In this post, I added a button to capture new image, and update default gallery.
main.xml
<?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent"> <LinearLayout android:id="@+id/customGalleryFooter" android:layout_width="fill_parent" android:layout_height="wrap_content" android:orientation="horizontal" android:gravity="center" android:layout_alignParentBottom="true"> <Button android:id="@+id/captureBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Capture" android:minWidth="200px" /> <Button android:id="@+id/selectBtn" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Select" android:minWidth="200px" /> </LinearLayout> <GridView android:id="@+id/PhoneImageGrid" android:layout_width="fill_parent" android:layout_height="fill_parent" android:numColumns="auto_fit" android:verticalSpacing="10dp" android:horizontalSpacing="10dp" android:columnWidth="90dp" android:stretchMode="columnWidth" android:gravity="center" android:layout_above="@id/customGalleryFooter" /> </RelativeLayout>
AndroidCustomGalleryActivity.java
package com.isummation.customgallery;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.res.Configuration;
import android.database.Cursor;
import android.graphics.Bitmap;
import android.media.MediaScannerConnection;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.CheckBox;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.Toast;
public class AndroidCustomGalleryActivity extends Activity {
public ImageAdapter imageAdapter;
private final static int TAKE_IMAGE = 1;
private Uri imageUri;
private MediaScannerConnection mScanner;
public GridView imagegrid;
private long lastId;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
imageAdapter = new ImageAdapter();
imageAdapter.initialize();
imagegrid = (GridView) findViewById(R.id.PhoneImageGrid);
imagegrid.setAdapter(imageAdapter);
final Button selectBtn = (Button) findViewById(R.id.selectBtn);
selectBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
final int len = imageAdapter.images.size();
int cnt = 0;
String selectImages = "";
for (int i = 0; i < len; i++) {
if (imageAdapter.images.get(i).selection) {
cnt++;
selectImages = selectImages
+ imageAdapter.images.get(i).id + ",";
}
}
if (cnt == 0) {
Toast.makeText(getApplicationContext(),
"Please select at least one image",
Toast.LENGTH_LONG).show();
} else {
selectImages = selectImages + "-1";
Intent intent = new Intent(getApplicationContext(),
UploadQueue.class);
intent.putExtra("Ids", selectImages);
startActivityForResult(intent, 2);
}
}
});
final Button captureBtn = (Button) findViewById(R.id.captureBtn);
captureBtn.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd_HHmmss");
String fileName = "IMG_" + sdf.format(new Date()) + ".jpg";
File myDirectory = new File(Environment
.getExternalStorageDirectory() + "/REOAllegiance/");
myDirectory.mkdirs();
File file = new File(myDirectory, fileName);
imageUri = Uri.fromFile(file);
Intent intent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
startActivityForResult(intent, TAKE_IMAGE);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
switch (resultCode) {
case RESULT_OK:
try {
// we need to update the gallery by starting MediaSanner service.
mScanner = new MediaScannerConnection(
AndroidCustomGalleryActivity.this,
new MediaScannerConnection.MediaScannerConnectionClient() {
public void onMediaScannerConnected() {
mScanner.scanFile(imageUri.getPath(), null /* mimeType */);
}
public void onScanCompleted(String path, Uri uri) {
//we can use the uri, to get the newly added image, but it will return path to full sized image
//e.g. content://media/external/images/media/7
//we can also update this path by replacing media by thumbnail to get the thumbnail
//because thumbnail path would be like content://media/external/images/thumbnail/7
//But the thumbnail is created after some delay by Android OS
//So you may not get the thumbnail. This is why I started new UI thread
//and it'll only run after the current thread completed.
if (path.equals(imageUri.getPath())) {
mScanner.disconnect();
//we need to create new UI thread because, we can't update our mail thread from here
//Both the thread will run one by one, see documentation of android
AndroidCustomGalleryActivity.this
.runOnUiThread(new Runnable() {
public void run() {
updateUI();
}
});
}
}
});
mScanner.connect();
} catch (Exception e) {
e.printStackTrace();
}
}
}
public void updateUI() {
imageAdapter.checkForNewImages();
}
public class ImageAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public ArrayList<ImageItem> images = new ArrayList<ImageItem>();
public ImageAdapter() {
mInflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
}
public void initialize() {
images.clear();
final String[] columns = { MediaStore.Images.Thumbnails._ID };
final String orderBy = MediaStore.Images.Media._ID;
Cursor imagecursor = managedQuery(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns,
null, null, orderBy);
int image_column_index = imagecursor
.getColumnIndex(MediaStore.Images.Media._ID);
int count = imagecursor.getCount();
for (int i = 0; i < count; i++) {
imagecursor.moveToPosition(i);
int id = imagecursor.getInt(image_column_index);
ImageItem imageItem = new ImageItem();
imageItem.id = id;
lastId = id;
Log.d("l_id", ""+ id);
imageItem.img = MediaStore.Images.Thumbnails.getThumbnail(
getApplicationContext().getContentResolver(), id,
MediaStore.Images.Thumbnails.MICRO_KIND, null);
images.add(imageItem);
}
imagecursor.close();
notifyDataSetChanged();
}
public void checkForNewImages(){
//Here we'll only check for newer images
final String[] columns = { MediaStore.Images.Thumbnails._ID };
final String orderBy = MediaStore.Images.Media._ID;
Cursor imagecursor = managedQuery(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns,
MediaStore.Images.Media._ID + " > " + lastId , null, orderBy);
int image_column_index = imagecursor
.getColumnIndex(MediaStore.Images.Media._ID);
int count = imagecursor.getCount();
for (int i = 0; i < count; i++) {
imagecursor.moveToPosition(i);
int id = imagecursor.getInt(image_column_index);
ImageItem imageItem = new ImageItem();
imageItem.id = id;
lastId = id;
imageItem.img = MediaStore.Images.Thumbnails.getThumbnail(
getApplicationContext().getContentResolver(), id,
MediaStore.Images.Thumbnails.MICRO_KIND, null);
imageItem.selection = true; //newly added item will be selected by default
images.add(imageItem);
}
imagecursor.close();
notifyDataSetChanged();
}
public int getCount() {
return images.size();
}
public Object getItem(int position) {
return position;
}
public long getItemId(int position) {
return position;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder;
if (convertView == null) {
holder = new ViewHolder();
convertView = mInflater.inflate(R.layout.galleryitem, null);
holder.imageview = (ImageView) convertView
.findViewById(R.id.thumbImage);
holder.checkbox = (CheckBox) convertView
.findViewById(R.id.itemCheckBox);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
ImageItem item = images.get(position);
holder.checkbox.setId(item.id);
holder.imageview.setId(item.id);
holder.checkbox.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
CheckBox cb = (CheckBox) v;
int id = cb.getId();
if (images.get(id).selection) {
cb.setChecked(false);
images.get(id).selection = false;
} else {
cb.setChecked(true);
images.get(id).selection = true;
}
}
});
holder.imageview.setOnClickListener(new OnClickListener() {
public void onClick(View v) {
// TODO Auto-generated method stub
int id = v.getId();
Intent intent = new Intent();
intent.setAction(Intent.ACTION_VIEW);
final String[] columns = { MediaStore.Images.Media.DATA };
Cursor imagecursor = managedQuery(
MediaStore.Images.Media.EXTERNAL_CONTENT_URI, columns,
MediaStore.Images.Media._ID + " = " + id, null, MediaStore.Images.Media._ID);
if (imagecursor != null && imagecursor.getCount() > 0){
imagecursor.moveToPosition(0);
String path = imagecursor.getString(imagecursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA));
imagecursor.close();
intent.setDataAndType(
Uri.parse("file://" + path),
"image/*");
startActivityForResult(intent, 3);
}
}
});
holder.imageview.setImageBitmap(item.img);
holder.checkbox.setChecked(item.selection);
return convertView;
}
}
class ViewHolder {
ImageView imageview;
CheckBox checkbox;
}
class ImageItem {
boolean selection;
int id;
Bitmap img;
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
}
}
Update:
I highly recommend to do not use this code, as it is old and with some bugs. Please visit my open source project page, Where I keep updating code.
Vikas Patel's Blog 
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