J_Bin

* Thread_1 * activity_main.xml * 화면 * MainActivity.java package com.example.thread_1; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.ProgressBar; import android.widget.SeekBar; import android.widget.TextView; public class MainActivity extends AppCompatActivity { @Override protected void onCr..

SQLite에 INSERT, SELECT, DROP 하는 프로그램 만들기 * activity_main.xml * MainActivity.java (Java 코드 1) package com.example.sqlite_1; import androidx.appcompat.app.AppCompatActivity; import android.content.Context; import android.database.sqlite.SQLiteDatabase; import android.database.sqlite.SQLiteOpenHelper; import android.os.Bundle; public class MainActivity extends AppCompatActivity { @Override protecte..

로그캣을 이용하여 액티비티 생명주기 확인하기 1-1. activity_main.xml 1-2. MainActivity.java package com.example.logcat; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.Button; public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState..