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10th class and 11th class added
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‎10-TenthClass/README.md

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# Android Ninja - Class No: 9
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Date: 23 September, 2017
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# Android Ninja - Class No: 10
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Date: 06 October, 2017
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## Topics ##
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- Capture image using default camera App of device
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- Web scraping using JSOUP library
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- `ProgressBar`
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- Implement an Abstraction Layer for Retrofit Network call
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- Android debugging
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- Refactor/rename (class, variable, method etc.)
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- Rename Android unique package name
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- Change Launcher Icon of Android App
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- Some Android Studio keyboard shortcuts
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### Resources ###
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- [Bengali Blog Post on JSOUP Library](https://hellohasan.com/2017/02/25/android-web-scraping-jsoup/)
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- [Android working with Camera - AndroidHive](https://www.androidhive.info/2013/09/android-working-with-camera-api/)
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- [Android Uploading Camera Image, Video to Server with Progress Bar - AndroidHive](https://www.androidhive.info/2014/12/android-uploading-camera-image-video-to-server-with-progress-bar/)
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- [Bengali Blog Post on ***Abstraction in network layer using Retrofit***](https://hellohasan.com/2017/10/01/android-retrofit-get-post-method-different-network-layer/)
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- [Debug your App - Android Official Documentation](https://developer.android.com/studio/debug/index.html)
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- [Refactor/rename file in Android Studio](https://stackoverflow.com/a/28269008/6200296)
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- [Refactor your code in Android Studio - OneTouchCode](http://onetouchcode.com/2016/10/12/code-refactor-android-studio/)
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- [Rename package in Android Studio](https://stackoverflow.com/a/29092698/6200296)
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- [Change Launcher icon](https://stackoverflow.com/a/21385148/6200296)
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- [Android Studio Keyboard Shortcuts - Android Official Documentation](https://developer.android.com/studio/intro/keyboard-shortcuts.html)

‎10-TenthClass/app/src/main/java/com/hellohasan/tenthclass/UserInfoShow/UserInfoActivity.java

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@@ -62,7 +62,7 @@ public void seeRepositories() {
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}
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@OnClick(R.id.seeRepoButton)
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public void getUserInfo() {
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public void getRepositoryList() {
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String userId = userIdEditText.getText().toString();
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‎11-EleventhClass/README.md

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# Android Ninja - Class No: 11
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Date: 07 October, 2017
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## Topics ##
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- SQLite Database
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- Create Database
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- Create Table
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- Write a record (row) into table
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- Read all records from table
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- Count the number of row in table
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### Resources ###
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- [Android SQLite Database - TutorialsPoint](https://www.tutorialspoint.com/android/android_sqlite_database.htm)
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- [Local Databases with SQLiteOpenHelper - CodePath](http://guides.codepath.com/android/local-databases-with-sqliteopenhelper)
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- [Android SQLite Database Tutorial - AndroidHive](https://www.androidhive.info/2011/11/android-sqlite-database-tutorial/)

‎11-EleventhClass/app/src/main/java/com/hellohasan/eleventhclass/Database/DatabaseQuery.java

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@@ -3,6 +3,7 @@
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.DatabaseUtils;
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import android.database.sqlite.SQLiteDatabase;
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import android.database.sqlite.SQLiteException;
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import android.widget.Toast;
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if(cursor.moveToFirst()){
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studentList = new ArrayList<>();
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do {
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long id = cursor.getLong(cursor.getColumnIndex(Config.COLUMN_STUDENT_ID));
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String name = cursor.getString(cursor.getColumnIndex(Config.COLUMN_STUDENT_NAME));
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long registrationNumber = cursor.getLong(cursor.getColumnIndex(Config.COLUMN_STUDENT_REGISTRATION));
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String phone = cursor.getString(cursor.getColumnIndex(Config.COLUMN_STUDENT_PHONE));
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String email = cursor.getString(cursor.getColumnIndex(Config.COLUMN_STUDENT_EMAIL));
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studentList.add(new Student(name, registrationNumber, phone, email));
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studentList.add(new Student(id, name, registrationNumber, phone, email));
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} while (cursor.moveToNext());
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}
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} catch (Exception e){
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Logger.d("Exception: " + e.getMessage());
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return studentList;
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}
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public long getStudentCount(){
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DatabaseHelper databaseHelper = DatabaseHelper.getInstance(context);
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SQLiteDatabase sqLiteDatabase = databaseHelper.getReadableDatabase();
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long count = DatabaseUtils.queryNumEntries(sqLiteDatabase, Config.TABLE_STUDENT);
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sqLiteDatabase.close();
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return count;
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}
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}

‎11-EleventhClass/app/src/main/java/com/hellohasan/eleventhclass/StudentCreate/Student.java

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package com.hellohasan.eleventhclass.StudentCreate;
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public class Student {
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private long id;
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private String name;
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private long registrationNumber;
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private String phoneNumber;
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this.email = email;
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}
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public Student(String name, long registrationNumber) {
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public Student(long id, String name, long registrationNumber, String phoneNumber, String email) {
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this.id = id;
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this.name = name;
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this.registrationNumber = registrationNumber;
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this.phoneNumber = phoneNumber;
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this.email = email;
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}
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public String getName() {

‎11-EleventhClass/app/src/main/java/com/hellohasan/eleventhclass/StudentCreate/StudentCreateActivity.java

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import android.os.Bundle;
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import android.support.v7.app.AppCompatActivity;
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import android.view.View;
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import android.widget.TextView;
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import com.hellohasan.eleventhclass.Database.DatabaseQuery;
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import com.hellohasan.eleventhclass.R;
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import com.orhanobut.logger.Logger;
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import java.util.List;
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import butterknife.BindView;
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import butterknife.ButterKnife;
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public class StudentCreateActivity extends AppCompatActivity {
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@BindView(R.id.studentCountTextView)
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TextView studentCountTextView;
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private DatabaseQuery databaseQuery = new DatabaseQuery(this);
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@Override
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protected void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.activity_student_create);
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ButterKnife.bind(this);
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//print number of students in db
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studentCountTextView.setText(String.valueOf(databaseQuery.getStudentCount()));
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}
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public void addEntryToDatabase(View view) {
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//every time we'll create student object with same data. and insert to database
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Student student = new Student("John", 123522, "01522235524", "[email protected]");
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DatabaseQuery databaseQuery = new DatabaseQuery(this);
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databaseQuery.insertStudent(student);
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databaseQuery.insertStudent(student); //insert student object (actually data) into database
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//you'll find all students of db in studentList
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List<Student> studentList = databaseQuery.getAllStudent();
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Logger.d("List Length: " + studentList.size());
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Logger.d("Number of Student: " + studentList.size()); //get student count
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//place a debugging breakpoint at this line or above line and check the studentList in debug monitor
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//another way to count students in db
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long count = databaseQuery.getStudentCount();
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studentCountTextView.setText(String.valueOf(count)); //print the counter into TextView
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}
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}

‎11-EleventhClass/app/src/main/res/layout/activity_student_create.xml

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android:layout_height="match_parent"
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tools:context="com.hellohasan.eleventhclass.StudentCreate.StudentCreateActivity">
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<TextView
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<Button
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android:id="@+id/addStudentButton"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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android:text="Hello World!"
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android:text="Add Student to DB"
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app:layout_constraintBottom_toBottomOf="parent"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toRightOf="parent"
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app:layout_constraintTop_toTopOf="parent" />
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app:layout_constraintTop_toTopOf="parent"
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android:onClick="addEntryToDatabase"/>
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<TextView
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android:id="@+id/studentCountTitle"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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app:layout_constraintTop_toBottomOf="@id/addStudentButton"
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app:layout_constraintLeft_toLeftOf="parent"
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app:layout_constraintRight_toLeftOf="@+id/studentCountTextView"
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android:text="Number of Student: "
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android:textStyle="bold"
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android:textSize="20sp"
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app:layout_constraintHorizontal_chainStyle="packed" />
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<TextView
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android:id="@+id/studentCountTextView"
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android:layout_width="wrap_content"
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android:layout_height="wrap_content"
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app:layout_constraintTop_toBottomOf="@id/addStudentButton"
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app:layout_constraintLeft_toRightOf="@id/studentCountTitle"
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app:layout_constraintRight_toRightOf="parent"
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android:textSize="20sp"
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tools:text="12"/>
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</android.support.constraint.ConstraintLayout>

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