Page 378 - MDP2022-2

public class SplashActivity extends AppCompatActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_splash);

ActionBar actionBar = getSupportActionBar();
actionBar.hide();
//ImageView gitImageView = (ImageView) findViewById(R.id.gitImageView);
//gitImageView.setVisibility(View.INVISIBLE);
//Glide.with(this).load(R.drawable.Loading).into(gitImageView);

Handler handler = new Handler();
handler.postDelayed(new splashHandler() ,1500);
}
private class splashHandler implements Runnable {
@Override
public void run() {
Intent intent = new Intent(SplashActivity.this, LoginActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION);
startActivity(intent);
SplashActivity.this.finish();
}
}
}

MainActivity -
import android.os.Bundle;
import android.view.WindowManager;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import androidx.appcompat.app.ActionBar;
import androidx.appcompat.app.AppCompatActivity;
public class MainActivity extends AppCompatActivity {
private String TAG = MainActivity.class.getSimpleName();
private WebView webView = null;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
//타이틀바 없애기
ActionBar actionBar = getSupportActionBar();
actionBar.hide();
webView = (WebView) findViewById(R.id.webview);
webView.setWebViewClient(new WebViewClient()); // 새 창 띄우기 않기
webView.getSettings().setLoadWithOverviewMode(true); // WebView 화면크기에 맞추도록 설정-
setUseWideViewPort 와 같이 써야함
webView.getSettings().setUseWideViewPort(true); // wide viewport 설정- setLoadWithOverviewMode 와 같이
써야함
webView.getSettings().setSupportZoom(false); // 줌 설정 여부
webView.getSettings().setBuiltInZoomControls(false); // 줌 확대/축소 버튼 여부
webView.getSettings().setJavaScriptEnabled(true); // 자바스크립트 사용여부
webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true); // javascript가window.open()을 사용할
수 있도록 설정
webView.getSettings().setSupportMultipleWindows(true); // 멀티 윈도우 사용 여부
webView.getSettings().setDomStorageEnabled(true); // 로컬 스토리지(localStorage) 사용여부
getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
webView.clearCache(true);
webView.loadUrl("https://console.firebase.google.com/project/prototype-de155/database/prototype-de155-default
-rtdb/data");
}
}

Login Activity -
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;