Sketchware Help

 In this example, the user can save details of pupils (name, age and place) in sqlite database in android app, and view the data in a ListView. Create a new project in Sketchware. In Options/Configuration, click on Java/Kotlin manager. Create a new Java class file with name DbHandler. Put following codes as contents of this DbHandler.java file. package com.my.newproject2; import android.content.ContentValues; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.database.Cursor; public class DbHandler extends SQLiteOpenHelper { private static final String DB_NAME = "studentdb"; private static final int DB_VERSION = 1; private static final String TABLE_NAME = "students"; private static final String ID_COL = "id"; private static final String NAME_COL = "name"; private static final String AGE_COL = "age"; private s...

Create a new app with four pages or Activity: MainActivity, NewnoteActivity, OldnoteActivity, ViewnoteActivity . In main.xml add two buttons. On button_new click, move to NewnoteActivity. On button_old click, move to OldnoteActivity. In newnote.xml View, add an Edittext (edittext1) and a Button (fab1) . In NewnoteActivity , add a Shared preferences component (sp:sp) . Add a more block called newitems and put following code in it: } byte[] cipherText; byte[] secretKeyen; byte[] IV = new byte[16]; { Add another more block called encrypt and put following code in it: } public static byte[] encrypt(byte[] plaintext, javax.crypto.SecretKey key, byte[] IV) throws Exception{ javax.crypto.Cipher cipher = javax.crypto.Cipher.getInstance("AES"); javax.crypto.spec.SecretKeySpec keySpec = new javax.crypto.spec.SecretKeySpec(key.getEncoded(), "AES"); javax.crypto.spec.IvParameterSpec ivSpec = new javax.crypto.spec.IvParameterSpec(IV); cipher.init(javax.crypto...