[Android] 로딩화면 구현

1. activity_loading.xml, LoadingActivity.java 파일 생성

  원하는 로딩화면(activity_loading.xml)을 만들어주시면 됩니다.

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
    xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:gravity="center"
        android:textSize="30dp"
        android:text="로딩화면"/>
    
</androidx.constraintlayout.widget.ConstraintLayout>

 

2. LoadingActivity

2초뒤 intent에 설정한 MainActivity로 이동합니다.

public class LoadingActivity extends Activity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_loading);

        startLoading();
    }

    private void startLoading(){

        Handler handler = new Handler();
        handler.postDelayed(new Runnable() {
            @Override
            public void run() {
            	Intent intent = new Intent(getBaseContext(), MainActivity.class);
				startActivity(intent);
                finish();
            }
        }, 2000);
    }
}

 

3. AndroidManifest.xml 설정

LoadingActivity를 생성하고 앱 실행 시 먼저 실행하기 위해 intent-filter태그를 잘라와서 넣어주시면 됩니다.

<activity 
	android:name=".LoadingActivity"
	android:theme="@android:style/Theme.NoTitleBar.Fullscreen">

	<intent-filter>
		<action android:name="android.intent.action.MAIN" />
		<category android:name="android.intent.category.LAUNCHER" />
	</intent-filter>
</activity>