package com.yisu.afterten;

import java.util.ArrayList;

import java.util.List;

import android.app.Activity;

public class ActivityManager {

private List<Activity> listActivity;

private static ActivityManager manager;

private ActivityManager() {

listActivity = new ArrayList<Activity>();

}

public static ActivityManager getInstance(){

if (manager == null ) {

manager = new ActivityManager();

}

return manager;

}

public void addActivity(Activity activity){

if (!listActivity.contains(activity)) {

listActivity.add(activity);

}

}

public void removeActivity(Activity activity){

if (listActivity.contains(activity)) {

listActivity.remove(activity);

}

}

public void startActivity(Activity activity){

activity.overridePendingTransition(R.anim.activity_in_from_right, R.anim.activity_out_to_left);

}

public void exitActivityAnimation(Activity activity){

removeActivity(activity);

activity.finish();

activity.overridePendingTransition(R.anim.activity_in_from_left, R.anim.activity_out_to_right);

}

public List<Activity> getListActivity() {

return listActivity;

}

}