모든 액티비티 종료 시키기

package com.hrupin;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;

public abstract class AppBaseActivity extends Activity {
	public static final String FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION = "com.hrupin.FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION";
	private BaseActivityReceiver baseActivityReceiver = new BaseActivityReceiver();
	public static final IntentFilter INTENT_FILTER = createIntentFilter();

	private static IntentFilter createIntentFilter() {
		IntentFilter filter = new IntentFilter();
		filter.addAction(FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION);
		return filter;
	}

	protected void registerBaseActivityReceiver() {
		registerReceiver(baseActivityReceiver, INTENT_FILTER);
	}

	protected void unRegisterBaseActivityReceiver() {
		unregisterReceiver(baseActivityReceiver);
	}

	public class BaseActivityReceiver extends BroadcastReceiver {
		@Override
		public void onReceive(Context context, Intent intent) {
			if (intent.getAction().equals(FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION)) {
				finish();
			}
		}
	}

	protected void closeAllActivities() {
		sendBroadcast(new Intent(FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION));
	}
}

적용해야 하는 액티비티 구현시 AppBaseActivity를 상속하고

액티비티들을 종료하고 싶은때 sendBroadCast(FINISH_ALL_ACTIVITIES_ACTIVITY_ACTION) 메소드 호출 

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