[Android] 안드로이드 Activity 뒤로가기 (MainBackPressCloseHandler) 딜레이 주기

결과화면

 

 

 

 

 

 

 

MainBackPressCloseHandler.class 생성

 

 

import android.app.Activity;
import android.widget.Toast;

public class MainBackPressCloseHandler {

    private long backKeyPressedTime = 0;
    private Toast toast;

    private Activity activity;

    public MainBackPressCloseHandler(Activity context) {
        this.activity = context;
    }

    public void onBackPressed() {
        if (System.currentTimeMillis() > backKeyPressedTime + 2000) {
            backKeyPressedTime = System.currentTimeMillis();
            showGuide();
            return;
        }
        if (System.currentTimeMillis() <= backKeyPressedTime + 2000) {
            activity.finish();
            android.os.Process.killProcess(android.os.Process.myPid());
            toast.cancel();
        }
    }

    public void showGuide() {
        toast = Toast.makeText(activity, "\'뒤로\'버튼을 한번 더 누르시면 종료됩니다.",
                Toast.LENGTH_SHORT);
        toast.show();
    }
}

 

 

 

private MainBackPressCloseHandler mainBackPressCloseHandler ;

사용하고 싶은 페이지에

MainBackPressCloseHandler 선언

 

 

 

mainBackPressCloseHandler = new MainBackPressCloseHandler(this);

객체 생성

 

 

 

 

@Override
public void onBackPressed() {
    mainBackPressCloseHandler.onBackPressed();
}

onBackPressed() 오버라이드

 

 

 

 

 

MainActivity.class

import android.app.Activity;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

import java.util.ArrayList;

public class MainActivity extends Activity {
    private MainBackPressCloseHandler mainBackPressCloseHandler;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mainBackPressCloseHandler = new MainBackPressCloseHandler(this);

    }

    @Override
    public void onBackPressed() {
        mainBackPressCloseHandler.onBackPressed();
    }

}