DEX file in Android

-

Overview

DEX files are Dalvik Executable file. You can view the content of a dex file an APK analyzer. With the help of an APK analyzer you can analyze your APK file and even compare it with the previous versions. 

Reference



Comments

Post a Comment

Popular posts from this blog

SQLite in Android

-
Image
Overview SQLite is an opensource SQL database that is used to store data into a text file on a device. SQLite only supports NULL INTEGER REAL TEXT BLOB SQLite with MVVM Add the required dependency in build.gradle (Module) file. Create a data class data class User( val name : String , val dob : String , val address : String , val pin : String , val username : String , val password : String , val isLoggedIn : Int ) Create a class name DBHelper and extend it with SQLiteOpenHelper Create the repositories Some Syntax of SQL commands Do's and Dont's You cannot store a BOOLEAN value in SQLite, you have to use INTEGER for this purpose. Code to Open Database from external file public class DatabaseHelper extends SQLiteOpenHelper { public static final String DATABASE_NAME = "appDatabase.db" ; private static final int DATABASE_VERSION = 1 ; private static String DATABASE_PATH ; private final Context context ; private SQLiteDat...
Read more

BioMetrics in Android Studio

-
Image
Overview Biometric login provides a way to authorize access to private content.  Code for Fingerprint Scanning implementation "androidx.biometric:biometric:1.1.0" <uses-permission android :name ="android.permission.USE_BIOMETRIC" /> class BioMetricUtil( private val context : Context) { private lateinit var biometricPrompt : BiometricPrompt private lateinit var biometricPromptInfo : BiometricPrompt.PromptInfo private val tvText : TextView = ( context as MainActivity).findViewById(R.id. tvText ) private val btnLogin : Button = ( context as MainActivity).findViewById(R.id. btnLogin ) init { setBioMetric() } private fun setBioMetric () { val biometricManager : BiometricManager = BiometricManager.from( context ) when (biometricManager.canAuthenticate( BIOMETRIC_STRONG )) { BiometricManager. BIOMETRIC_SUCCESS -> { tvText . text = "You can use the f...
Read more

Convert Password Characters into a placeholder character.

-
Image
Overview This code is used to covert password characters into an Asterisk. To do that you have to create a class and extend the class with PasswordTransformationMethod public class AsteriskMethod extends PasswordTransformationMethod { public CharSequence mPassword ; @Override public CharSequence getTransformation (CharSequence source , View view) { return new AsteriskMethod.PasswordCharSequence(source) ; } private class PasswordCharSequence implements CharSequence { public PasswordCharSequence (CharSequence source) { mPassword = source ; // Store char sequence } public char charAt ( int index) { return '*' ; // This is the important part } public int length () { return mPassword .length() ; // Return default } public CharSequence subSequence ( int start , int end) { return mPassword .subSequence(start , end) ; // Return default ...
Read more