Hello Friends,
On many demands today I am writing a very Important post on Take Image from Camera/Gallery and save it into SqLite database and display it in a List-View. After that on select one image it will take you second detail page and from here you can delete this image from SqLite. Follow my blog step by step-
Screen Shot:
1)SQLiteDemoActivity.java
package com.manish.sqlite;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.util.ArrayList;
import java.util.List;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ArrayAdapter;
import android.widget.Button;
import android.widget.ListView;
public class SQLiteDemoActivity extends Activity {
Button addImage;
ArrayList<Contact> imageArry = new ArrayList<Contact>();
ContactImageAdapter imageAdapter;
private static final int CAMERA_REQUEST = 1;
private static final int PICK_FROM_GALLERY = 2;
ListView dataList;
byte[] imageName;
int imageId;
Bitmap theImage;
DataBaseHandler db;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
dataList = (ListView) findViewById(R.id.list);
/**
* create DatabaseHandler object
*/
db = new DataBaseHandler(this);
/**
* Reading and getting all records from database
*/
List<Contact> contacts = db.getAllContacts();
for (Contact cn : contacts) {
String log = "ID:" + cn.getID() + " Name: " + cn.getName()
+ " ,Image: " + cn.getImage();
// Writing Contacts to log
Log.d("Result: ", log);
// add contacts data in arrayList
imageArry.add(cn);
}
/**
* Set Data base Item into listview
*/
imageAdapter = new ContactImageAdapter(this, R.layout.screen_list,
imageArry);
dataList.setAdapter(imageAdapter);
/**
* go to next activity for detail image
*/
dataList.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View v,
final int position, long id) {
imageName = imageArry.get(position).getImage();
imageId = imageArry.get(position).getID();
Log.d("Before Send:****", imageName + "-" + imageId);
// convert byte to bitmap
ByteArrayInputStream imageStream = new ByteArrayInputStream(
imageName);
theImage = BitmapFactory.decodeStream(imageStream);
Intent intent = new Intent(SQLiteDemoActivity.this,
DisplayImageActivity.class);
intent.putExtra("imagename", theImage);
intent.putExtra("imageid", imageId);
startActivity(intent);
}
});
/**
* open dialog for choose camera/gallery
*/
final String[] option = new String[] { "Take from Camera",
"Select from Gallery" };
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
android.R.layout.select_dialog_item, option);
AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setTitle("Select Option");
builder.setAdapter(adapter, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
// TODO Auto-generated method stub
Log.e("Selected Item", String.valueOf(which));
if (which == 0) {
callCamera();
}
if (which == 1) {
callGallery();
}
}
});
final AlertDialog dialog = builder.create();
addImage = (Button) findViewById(R.id.btnAdd);
addImage.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
dialog.show();
}
});
}
/**
* On activity result
*/
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
if (resultCode != RESULT_OK)
return;
switch (requestCode) {
case CAMERA_REQUEST:
Bundle extras = data.getExtras();
if (extras != null) {
Bitmap yourImage = extras.getParcelable("data");
// convert bitmap to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
yourImage.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte imageInByte[] = stream.toByteArray();
Log.e("output before conversion", imageInByte.toString());
// Inserting Contacts
Log.d("Insert: ", "Inserting ..");
db.addContact(new Contact("Android", imageInByte));
Intent i = new Intent(SQLiteDemoActivity.this,
SQLiteDemoActivity.class);
startActivity(i);
finish();
}
break;
case PICK_FROM_GALLERY:
Bundle extras2 = data.getExtras();
if (extras2 != null) {
Bitmap yourImage = extras2.getParcelable("data");
// convert bitmap to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
yourImage.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte imageInByte[] = stream.toByteArray();
Log.e("output before conversion", imageInByte.toString());
// Inserting Contacts
Log.d("Insert: ", "Inserting ..");
db.addContact(new Contact("Android", imageInByte));
Intent i = new Intent(SQLiteDemoActivity.this,
SQLiteDemoActivity.class);
startActivity(i);
finish();
}
break;
}
}
/**
* open camera method
*/
public void callCamera() {
Intent cameraIntent = new Intent(
android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
cameraIntent.putExtra("crop", "true");
cameraIntent.putExtra("aspectX", 0);
cameraIntent.putExtra("aspectY", 0);
cameraIntent.putExtra("outputX", 200);
cameraIntent.putExtra("outputY", 150);
startActivityForResult(cameraIntent, CAMERA_REQUEST);
}
/**
* open gallery method
*/
public void callGallery() {
Intent intent = new Intent();
intent.setType("image/*");
intent.setAction(Intent.ACTION_GET_CONTENT);
intent.putExtra("crop", "true");
intent.putExtra("aspectX", 0);
intent.putExtra("aspectY", 0);
intent.putExtra("outputX", 200);
intent.putExtra("outputY", 150);
intent.putExtra("return-data", true);
startActivityForResult(
Intent.createChooser(intent, "Complete action using"),
PICK_FROM_GALLERY);
}
}
2)DataBaseHandler.java
package com.manish.sqlite;
import java.util.ArrayList;
import java.util.List;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
public class DataBaseHandler extends SQLiteOpenHelper {
// All Static variables
// Database Version
private static final int DATABASE_VERSION = 1;
// Database Name
private static final String DATABASE_NAME = "imagedb";
// Contacts table name
private static final String TABLE_CONTACTS = "contacts";
// Contacts Table Columns names
private static final String KEY_ID = "id";
private static final String KEY_NAME = "name";
private static final String KEY_IMAGE = "image";
public DataBaseHandler(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Creating Tables
@Override
public void onCreate(SQLiteDatabase db) {
String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_CONTACTS + "("
+ KEY_ID + " INTEGER PRIMARY KEY," + KEY_NAME + " TEXT,"
+ KEY_IMAGE + " BLOB" + ")";
db.execSQL(CREATE_CONTACTS_TABLE);
}
// Upgrading database
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// Drop older table if existed
db.execSQL("DROP TABLE IF EXISTS " + TABLE_CONTACTS);
// Create tables again
onCreate(db);
}
/**
* All CRUD(Create, Read, Update, Delete) Operations
*/
public// Adding new contact
void addContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, contact._name); // Contact Name
values.put(KEY_IMAGE, contact._image); // Contact Phone
// Inserting Row
db.insert(TABLE_CONTACTS, null, values);
db.close(); // Closing database connection
}
// Getting single contact
Contact getContact(int id) {
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.query(TABLE_CONTACTS, new String[] { KEY_ID,
KEY_NAME, KEY_IMAGE }, KEY_ID + "=?",
new String[] { String.valueOf(id) }, null, null, null, null);
if (cursor != null)
cursor.moveToFirst();
Contact contact = new Contact(Integer.parseInt(cursor.getString(0)),
cursor.getString(1), cursor.getBlob(2));
// return contact
return contact;
}
// Getting All Contacts
public List<Contact> getAllContacts() {
List<Contact> contactList = new ArrayList<Contact>();
// Select All Query
String selectQuery = "SELECT * FROM contacts ORDER BY name";
SQLiteDatabase db = this.getWritableDatabase();
Cursor cursor = db.rawQuery(selectQuery, null);
// looping through all rows and adding to list
if (cursor.moveToFirst()) {
do {
Contact contact = new Contact();
contact.setID(Integer.parseInt(cursor.getString(0)));
contact.setName(cursor.getString(1));
contact.setImage(cursor.getBlob(2));
// Adding contact to list
contactList.add(contact);
} while (cursor.moveToNext());
}
// close inserting data from database
db.close();
// return contact list
return contactList;
}
// Updating single contact
public int updateContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
ContentValues values = new ContentValues();
values.put(KEY_NAME, contact.getName());
values.put(KEY_IMAGE, contact.getImage());
// updating row
return db.update(TABLE_CONTACTS, values, KEY_ID + " = ?",
new String[] { String.valueOf(contact.getID()) });
}
// Deleting single contact
public void deleteContact(Contact contact) {
SQLiteDatabase db = this.getWritableDatabase();
db.delete(TABLE_CONTACTS, KEY_ID + " = ?",
new String[] { String.valueOf(contact.getID()) });
db.close();
}
// Getting contacts Count
public int getContactsCount() {
String countQuery = "SELECT * FROM " + TABLE_CONTACTS;
SQLiteDatabase db = this.getReadableDatabase();
Cursor cursor = db.rawQuery(countQuery, null);
cursor.close();
// return count
return cursor.getCount();
}
}
3)ContactImageAdapter.java
package com.manish.sqlite;
import java.io.ByteArrayInputStream;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.TextView;
public class ContactImageAdapter extends ArrayAdapter<Contact>{
Context context;
int layoutResourceId;
// BcardImage data[] = null;
ArrayList<Contact> data=new ArrayList<Contact>();
public ContactImageAdapter(Context context, int layoutResourceId, ArrayList<Contact> data) {
super(context, layoutResourceId, data);
this.layoutResourceId = layoutResourceId;
this.context = context;
this.data = data;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View row = convertView;
ImageHolder holder = null;
if(row == null)
{
LayoutInflater inflater = ((Activity)context).getLayoutInflater();
row = inflater.inflate(layoutResourceId, parent, false);
holder = new ImageHolder();
holder.txtTitle = (TextView)row.findViewById(R.id.txtTitle);
holder.imgIcon = (ImageView)row.findViewById(R.id.imgIcon);
row.setTag(holder);
}
else
{
holder = (ImageHolder)row.getTag();
}
Contact picture = data.get(position);
holder.txtTitle.setText(picture._name);
//convert byte to bitmap take from contact class
byte[] outImage=picture._image;
ByteArrayInputStream imageStream = new ByteArrayInputStream(outImage);
Bitmap theImage = BitmapFactory.decodeStream(imageStream);
holder.imgIcon.setImageBitmap(theImage);
return row;
}
static class ImageHolder
{
ImageView imgIcon;
TextView txtTitle;
}
}
4)Contact.java
package com.manish.sqlite;
public class Contact {
// private variables
int _id;
String _name;
byte[] _image;
// Empty constructor
public Contact() {
}
// constructor
public Contact(int keyId, String name, byte[] image) {
this._id = keyId;
this._name = name;
this._image = image;
}
public Contact(int keyId) {
this._id = keyId;
}
// getting ID
public int getID() {
return this._id;
}
// setting id
public void setID(int keyId) {
this._id = keyId;
}
// getting name
public String getName() {
return this._name;
}
// setting name
public void setName(String name) {
this._name = name;
}
// getting phone number
public byte[] getImage() {
return this._image;
}
// setting phone number
public void setImage(byte[] image) {
this._image = image;
}
}
5)DisplayImageActivity.java
package com.manish.sqlite;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
public class DisplayImageActivity extends Activity {
Button btnDelete;
ImageView imageDetail;
int imageId;
Bitmap theImage;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.display);
btnDelete = (Button) findViewById(R.id.btnDelete);
imageDetail = (ImageView) findViewById(R.id.imageView1);
/**
* getting intent data from search and previous screen
*/
Intent intnt = getIntent();
theImage = (Bitmap) intnt.getParcelableExtra("imagename");
imageId = intnt.getIntExtra("imageid", 20);
Log.d("Image ID:****", String.valueOf(imageId));
imageDetail.setImageBitmap(theImage);
btnDelete.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
/**
* create DatabaseHandler object
*/
DataBaseHandler db = new DataBaseHandler(
DisplayImageActivity.this);
/**
* Deleting records from database
*/
Log.d("Delete Image: ", "Deleting.....");
db.deleteContact(new Contact(imageId));
// /after deleting data go to main page
Intent i = new Intent(DisplayImageActivity.this,
SQLiteDemoActivity.class);
startActivity(i);
finish();
}
});
}
}
6)main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000"
android:orientation="vertical" >
<Button
android:id="@+id/btnAdd"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:text="Add Image" />
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="0.55"
android:cacheColorHint="#00000000" >
</ListView>
</LinearLayout>
7)screen_list.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal"
android:padding="10dp" >
<ImageView
android:id="@+id/imgIcon"
android:layout_width="0dp"
android:layout_height="100dp"
android:layout_weight="0.71"
android:gravity="center_vertical" />
<TextView
android:id="@+id/txtTitle"
android:layout_width="80dp"
android:layout_height="wrap_content"
android:gravity="center_vertical"
android:textSize="14dp"
android:text="@string/hello"
android:textColor="#ffffff"
android:layout_marginLeft="7dp" />
</LinearLayout>
8)display.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#000000"
android:orientation="vertical" >
<Button
android:id="@+id/btnDelete"
android:layout_width="fill_parent"
android:layout_height="60dp"
android:text="Delete Image" />
<ImageView
android:id="@+id/imageView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="@drawable/facebook" />
Your comments and suggestion requested!
Thanks,
You can refer my other blog for database in android-
1)Simple SqLite Data base Demo with Log
2)Image In SqLite Database from Drawable
Happy Coding :)
Android Hub 4 You Team
