April 2017 – Page 2

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/drawerLayout"
    android:layout_gravity="start"
    android:fitsSystemWindows="true"
    tools:openDrawer="end"
    tools:context="ir.mhdr.bmi.MainActivity">


    <!--Content-->
    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="vertical">

        <include
            layout="@layout/toolbar_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content" />

        <RelativeLayout
            android:id="@+id/relativeLayoutMainContainer"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <android.support.design.widget.BottomNavigationView
                android:id="@+id/bottomNavigationView"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignParentBottom="true"
                app:itemBackground="@color/colorBottomNavigation"
                app:menu="@menu/bottom_navigation">

            </android.support.design.widget.BottomNavigationView>

        </RelativeLayout>

    </RelativeLayout>

    <!--Drawer-->
    <android.support.design.widget.NavigationView
        android:id="@+id/navigationView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_gravity="end">

    </android.support.design.widget.NavigationView>

</android.support.v4.widget.DrawerLayout>

MainActivity.java

public class MainActivity extends AppCompatActivity {

    DrawerLayout drawerLayout;
    Toolbar toolbar;
    ActionBarDrawerToggle actionBarDrawerToggle;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        ViewCompat.setLayoutDirection(toolbar, ViewCompat.LAYOUT_DIRECTION_RTL);
        getSupportActionBar().setTitle(R.string.app_name_fa);

        drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
        actionBarDrawerToggle = new ActionBarDrawerToggle(this, drawerLayout, R.string.drawer_open, R.string.drawer_close);
        drawerLayout.addDrawerListener(actionBarDrawerToggle);
        getSupportActionBar().setDisplayHomeAsUpEnabled(true);
        getSupportActionBar().setHomeButtonEnabled(true);
    }

    @Override
    protected void onPostCreate(@Nullable Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        actionBarDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        actionBarDrawerToggle.onConfigurationChanged(newConfig);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        // it will not work for right to left navigation drawer
/*        if (actionBarDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }*/


        // so we have to open and close the navigation drawer ourselves
        if(item.getItemId() == android.R.id.home) {
            if(drawerLayout.isDrawerOpen(Gravity.END)) {
                drawerLayout.closeDrawer(Gravity.END);
            }
            else {
                drawerLayout.openDrawer(Gravity.END);
            }
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/065

Blender PPA

April 21, 2017

sudo add-apt-repository ppa:thomas-schiex/blender
sudo apt-get update

References
https://launchpad.net/~thomas-schiex/+archive/ubuntu/blender

Android Right to Left Toolbar

April 21, 2017

MainActivity.java

public class MainActivity extends AppCompatActivity {

    Toolbar toolbar;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        toolbar= (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        ViewCompat.setLayoutDirection(toolbar,ViewCompat.LAYOUT_DIRECTION_RTL);
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/064

Inkscape PPA

April 21, 2017

sudo add-apt-repository ppa:inkscape.dev/stable
sudo apt-get update

References
https://launchpad.net/~inkscape.dev/+archive/ubuntu/stable

Turn off the beep in Linux terminal tab autocomplete

April 21, 2017

nano /etc/inputrc

set bell-style none

Nvidia PPA

April 15, 2017

sudo add-apt-repository ppa:graphics-drivers/ppa

References
https://launchpad.net/~graphics-drivers/+archive/ubuntu/ppa

Android Working with TableLayout

April 13, 2017

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context="mhdr.ir.a063.MainActivity">


    <TableLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true"
        android:stretchColumns="1"
        android:layout_centerHorizontal="true">

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="First Name"
                android:gravity="right"
                android:layout_marginRight="2dp"
                android:layout_column="0"/>

            <EditText
                android:id="@+id/editText"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:ems="10"
                android:inputType="textPersonName" />
        </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:gravity="right"
                android:text="Last Name"
                android:layout_marginRight="2dp"
                android:layout_column="0"/>

            <EditText
                android:id="@+id/editText2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:ems="10"
                android:inputType="textPersonName" />

            </TableRow>

        <TableRow
            android:layout_width="match_parent"
            android:layout_height="match_parent">

            <TextView
                android:id="@+id/textView3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Age"
                android:gravity="right"
                android:layout_marginRight="2dp"
                android:layout_column="0"/>

            <EditText
                android:id="@+id/editText3"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_column="1"
                android:ems="10"
                android:inputType="textPersonName" />
            </TableRow>

        <TableRow
            android:layout_marginTop="30dp"
            android:layout_width="match_parent"
            android:layout_height="match_parent">


            <Button
                android:id="@+id/button"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_span="2"
                android:text="Save" />
        </TableRow>
    </TableLayout>
</RelativeLayout>

References
https://github.com/mhdr/AndroidSamples/tree/master/063
https://www.mkyong.com/android/android-tablelayout-example/
https://www.tutorialspoint.com/android/android_table_layout.htm

Which application is using a specific port in Linux

April 13, 2017

$ lsof -i :8080

COMMAND   PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
java    10165 mkyong   52u  IPv6 191544      0t0  TCP *:http-alt (LISTEN)

$ ps -ef | grep 10165

mkyong   10165  4364  1 11:58 ?        00:00:20 /opt/jdk/jdk1.8.0_66/jre/bin/java
//...
-Djava.endorsed.dirs=/home/mkyong/software/apache-tomcat-8.0.30/endorsed
-classpath /home/mkyong/software/apache-tomcat-8.0.30/bin/bootstrap.jar:
/home/mkyong/software/apache-tomcat-8.0.30/bin/tomcat-juli.jar
-Dcatalina.base=/home/mkyong/.IntelliJIdea15/system/tomcat/Unnamed_hc_2
-Dcatalina.home=/home/mkyong/software/apache-tomcat-8.

0.30
-Djava.io.tmpdir=/home/mkyong/software/apache-tomcat-8.0.30
/temp org.apache.catalina.startup.Bootstrap start

References
https://www.mkyong.com/linux/linux-which-application-is-using-port-8080/

Android SQLite Database Tutorial

April 13, 2017

Insert

View

Search

Update

Delete

Contact.java

package com.androidhive.androidsqlite; 
 
public class Contact {
     
    //private variables
    int _id;
    String _name;
    String _phone_number;
     
    // Empty constructor
    public Contact(){
         
    }
    // constructor
    public Contact(int id, String name, String _phone_number){
        this._id = id;
        this._name = name;
        this._phone_number = _phone_number;
    }
     
    // constructor
    public Contact(String name, String _phone_number){
        this._name = name;
        this._phone_number = _phone_number;
    }
    // getting ID
    public int getID(){
        return this._id;
    }
     
    // setting id
    public void setID(int id){
        this._id = id;
    }
     
    // getting name
    public String getName(){
        return this._name;
    }
     
    // setting name
    public void setName(String name){
        this._name = name;
    }
     
    // getting phone number
    public String getPhoneNumber(){
        return this._phone_number;
    }
     
    // setting phone number
    public void setPhoneNumber(String phone_number){
        this._phone_number = phone_number;
    }
}

DatabaseHandler.java

public class DatabaseHandler extends SQLiteOpenHelper {

    public static class Schema_DB {
        private static int DATABASE_VERSION = 5;
        private static String DATABASE_NAME = "062";
    }

    public DatabaseHandler(Context context) {
        super(context, Schema_DB.DATABASE_NAME, null, Schema_DB.DATABASE_VERSION);
    }

    @Override
    public void onCreate(SQLiteDatabase db) {
        db.execSQL(Schema_Contacts.QUERY_CREATE_TABLE);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        if (newVersion > oldVersion) {
            db.execSQL(Schema_Contacts.QUERY_DROP_TABLE);
            db.execSQL(Schema_Contacts.QUERY_CREATE_TABLE);
        }
    }


    public static class Schema_Contacts {
        public static final String TABLE_NAME = "contacts";
        public static final String COL1_ID = "_id";
        public static final String COL2_NAME = "name";
        public static final String COL3_PHONE_NUMBER = "phone_number";
        public static final String COL4_EMAIL_ADDRESS = "email_address";
        public static final String QUERY_CREATE_TABLE =String.format("CREATE TABLE \"%s\" (\n" +
                "\"%s\"  INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,\n" +
                "\"%s\"  TEXT NOT NULL,\n" +
                "\"%s\"  TEXT,\n" +
                "\"%s\"  TEXT\n" +
                ");",TABLE_NAME,COL1_ID,COL2_NAME,COL3_PHONE_NUMBER,COL4_EMAIL_ADDRESS);

        public static final String QUERY_DROP_TABLE =String.format("DROP TABLE IF EXISTS \"%s\";",TABLE_NAME);
    }
}

Contacts.java

public class Contacts {
    private DatabaseHandler dbHandler;

    public Contacts(DatabaseHandler dbHandler) {
        this.dbHandler = dbHandler;
    }


    public long addContact(Contact contact) {
        SQLiteDatabase db = this.dbHandler.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(DatabaseHandler.Schema_Contacts.COL2_NAME, contact.getName());
        values.put(DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER, contact.getPhoneNumber());
        values.put(DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS, contact.getEmailAddress());

        long inserted_id = db.insert(DatabaseHandler.Schema_Contacts.TABLE_NAME, null, values);
        db.close();

        return inserted_id;
    }

    public Cursor getContactCursor(int id) {
        SQLiteDatabase db = this.dbHandler.getReadableDatabase();


        String[] columns = {
                DatabaseHandler.Schema_Contacts.COL1_ID,
                DatabaseHandler.Schema_Contacts.COL2_NAME,
                DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER,
                DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS
        };

        String selection = DatabaseHandler.Schema_Contacts.COL1_ID + " = ?";
        String[] selectionArgs = {String.valueOf(id)};

        Cursor cursor = db.query(DatabaseHandler.Schema_Contacts.TABLE_NAME, columns,
                selection,
                selectionArgs, null, null, null, null);

        return cursor;
    }

    public Contact getContact(int id) {
        SQLiteDatabase db = this.dbHandler.getReadableDatabase();

        String[] columns = {
                DatabaseHandler.Schema_Contacts.COL1_ID,
                DatabaseHandler.Schema_Contacts.COL2_NAME,
                DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER,
                DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS
        };

        String selection = DatabaseHandler.Schema_Contacts.COL1_ID + " = ?";
        String[] selectionArgs = {String.valueOf(id)};

        Cursor cursor = db.query(DatabaseHandler.Schema_Contacts.TABLE_NAME, columns,
                selection,
                selectionArgs, null, null, null, null);

        if (cursor != null)
            cursor.moveToFirst();

        Contact contact = new Contact(cursor.getInt(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL1_ID)),
                cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL2_NAME)),
                cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER)),
                cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS)));


        cursor.close();
        db.close();

        return contact;
    }

    public List<Contact> getAllContacts() {
        List<Contact> contactList = new ArrayList<Contact>();

        String selectQuery = String.format("SELECT * FROM %s", DatabaseHandler.Schema_Contacts.TABLE_NAME);

        SQLiteDatabase db = this.dbHandler.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        if (cursor.moveToFirst()) {
            do {
                Contact contact = new Contact(cursor.getInt(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL1_ID)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL2_NAME)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS)));

                contactList.add(contact);
            } while (cursor.moveToNext());
        }


        cursor.close();
        db.close();

        return contactList;
    }

    public Cursor getAllContactsCursor() {
        String selectQuery = String.format("SELECT * FROM %s", DatabaseHandler.Schema_Contacts.TABLE_NAME);

        SQLiteDatabase db = this.dbHandler.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        return cursor;
    }

    public List<Contact> getContactsByName(String name) {
        List<Contact> contactList = new ArrayList<Contact>();

        SQLiteDatabase db = this.dbHandler.getWritableDatabase();

        String[] columns = {
                DatabaseHandler.Schema_Contacts.COL1_ID,
                DatabaseHandler.Schema_Contacts.COL2_NAME,
                DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER,
                DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS
        };

        String selection = DatabaseHandler.Schema_Contacts.COL2_NAME + " LIKE ?";
        String[] selectionArgs = {"%" + name + "%"};

        Cursor cursor = db.query(DatabaseHandler.Schema_Contacts.TABLE_NAME, columns, selection, selectionArgs, null, null, null);

        if (cursor.moveToFirst()) {
            do {
                Contact contact = new Contact(cursor.getInt(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL1_ID)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL2_NAME)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER)),
                        cursor.getString(cursor.getColumnIndex(DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS)));

                contactList.add(contact);
            } while (cursor.moveToNext());
        }


        cursor.close();
        db.close();

        return contactList;
    }

    public Cursor getContactsByNameCursor(String name) {

        SQLiteDatabase db = this.dbHandler.getWritableDatabase();

        String[] columns = {
                DatabaseHandler.Schema_Contacts.COL1_ID,
                DatabaseHandler.Schema_Contacts.COL2_NAME,
                DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER,
                DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS
        };

        String selection = DatabaseHandler.Schema_Contacts.COL2_NAME + " LIKE ?";
        String[] selectionArgs = {name};

        Cursor cursor = db.query(DatabaseHandler.Schema_Contacts.TABLE_NAME, columns, selection, selectionArgs, null, null, null);


        return cursor;
    }

    public int getContactsCount() {
        String countQuery = "SELECT  * FROM " + DatabaseHandler.Schema_Contacts.TABLE_NAME;
        SQLiteDatabase db = this.dbHandler.getReadableDatabase();
        Cursor cursor = db.rawQuery(countQuery, null);

        int count = cursor.getCount();

        cursor.close();
        db.close();


        return count;
    }

    public int updateContact(Contact contact) {
        SQLiteDatabase db = this.dbHandler.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(DatabaseHandler.Schema_Contacts.COL2_NAME, contact.getName());
        values.put(DatabaseHandler.Schema_Contacts.COL3_PHONE_NUMBER, contact.getPhoneNumber());
        values.put(DatabaseHandler.Schema_Contacts.COL4_EMAIL_ADDRESS, contact.getEmailAddress());


        int rows_affected = db.update(DatabaseHandler.Schema_Contacts.TABLE_NAME, values,
                DatabaseHandler.Schema_Contacts.COL1_ID + " = ?",
                new String[]{String.valueOf(contact.getId())});
        db.close();

        return rows_affected;
    }

    public int deleteContact(Contact contact) {
        SQLiteDatabase db = this.dbHandler.getWritableDatabase();
        int rows_affected = db.delete(DatabaseHandler.Schema_Contacts.TABLE_NAME,
                DatabaseHandler.Schema_Contacts.COL1_ID + " = ?",
                new String[]{String.valueOf(contact.getId())});
        db.close();

        return rows_affected;
    }
}

References
https://github.com/mhdr/AndroidSamples/tree/master/062
http://www.androidhive.info/2011/11/android-sqlite-database-tutorial/
https://www.youtube.com/watch?v=38DOncHIazs&t=1510s&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=34
https://www.youtube.com/watch?v=ahE8bQRD4f0&t=3s&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=35
https://www.youtube.com/watch?v=V4FqE83K1n0&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=36
https://www.youtube.com/watch?v=Im6oY8QSVHU&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=37
https://www.youtube.com/watch?v=HSTt_M4bpBY&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=38
https://www.youtube.com/watch?v=g2x1lzBKB8M&list=PLshdtb5UWjSp0879mLeCsDQN6L73XBZTk&index=39

Month: April 2017

Integrating QML and C++

Android Open Navigation Drawer from Right

Blender PPA

Android Right to Left Toolbar

Inkscape PPA

Turn off the beep in Linux terminal tab autocomplete

Nvidia PPA

Android Working with TableLayout

Which application is using a specific port in Linux

Android SQLite Database Tutorial