[Java]  SharedPreferences  +  Singleton Pattern

activity_main.xml MainActivity.java package com.jwsoft.javaproject; import androidx.appcompat.app.AppCompatActivity; import android.content.SharedPreferences; import android.os.Bundle; import android.view.View; import android.widget.Button; import android.widget.EditText; public class MainActivity extends AppCompatActivity { EditText etId; EditText etName; EditText etAge; Button btnSave; Button ..
Android/Java 2020. 6. 30. 22:54
[Kotlin]  SharedPreferences  +  Singleton Pattern

activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import android.content.Context import android.content.SharedPreferences import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity() { lateinit var sharedPreferences: SharedPreferences lateinit var editor: SharedPreferences...
Android/Kotlin 2020. 6. 30. 22:11
[Kotlin]  Handler   vs   runOnUiThread   vs   AsyncTask

Handler.post() vs runOnUiThread() vs AsyncTask.execute() activity_main.xml MainActivity.kt package com.jwsoft.kotlinproject import android.os.AsyncTask import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.os.Handler import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?)..
Android/Kotlin 2020. 6. 29. 23:43
[Java]  Handler   vs   runOnUiThread   vs   AsyncTask

Handler.post() vs runOnUiThread() vs AsyncTask.execute() activity_main.xml MainActivity.java package com.jwsoft.javaproject; import androidx.appcompat.app.AppCompatActivity; import android.os.AsyncTask; import android.os.Bundle; import android.os.Handler; import android.view.View; import android.widget.Button; import android.widget.TextView; public class MainActivity extends AppCompatActivity { ..
Android/Java 2020. 6. 29. 23:05
[Java]  AsyncTask

activity_main.xml MyAsyncTask.java package com.jwsoft.javaproject; import android.os.AsyncTask; import android.widget.TextView; public class MyAsyncTask extends AsyncTask { TextView tvText; public MyAsyncTask(TextView tvText) { this.tvText = tvText; } @Override protected void onPreExecute() { super.onPreExecute(); } @Override protected Boolean doInBackground(Void... voids) { for (int i=1; i
Android/Java 2020. 6. 29. 22:42
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