package com.yunpai.tms.application;

import android.app.Activity;

import android.app.ActivityManager;

import android.content.Context;

import com.yunpai.tms.R;

import com.yunpai.tms.activity.LoginActivity;

import com.yunpai.tms.activity.MainActivity;

import java.util.Stack;

public class AppStackManager {

    // Activity栈

    private static Stack<Activity> activityStack;

    // 单例模式

    private static AppStackManager instance;

    /**

     * 单一实例

     */

    public static AppStackManager getInstance() {

        if (instance == null) {

            instance = new AppStackManager();

        }

        return instance;

    }

    /**

     * 添加Activity到堆栈

     */

    public void addActivity(Activity activity) {

        if (activityStack == null) {

            activityStack = new Stack<Activity>();

        }

        if (!activityStack.contains(activity))

        activityStack.add(activity);

    }

    /**

     * 获取当前Activity（堆栈中最后一个压入的）

     */

    public Activity currentActivity() {

        Activity activity = activityStack.lastElement();

        return activity;

    }

    /**

     * 结束当前Activity（堆栈中最后一个压入的）

     */

    public void finishActivity() {

        Activity activity = activityStack.lastElement();

        finishActivity(activity);

    }

    /**

     * 结束指定的Activity

     */

    public void finishActivity(Activity activity) {

        if (activity != null) {

            activityStack.remove(activity);

            activity.finish();

            activity.overridePendingTransition(R.anim.push_right_out, R.anim.push_right_out);

        }

    }

    /**

     * 结束指定类名的Activity

     */

    public void finishActivity(Class<?> cls) {

        for (Activity activity : activityStack) {

            if (activity.getClass().equals(cls)) {

                finishActivity(activity);

            }

        }

    }

    /**

     * 弹出栈顶

     */

    public void finishAfterActivity(Class<?> cls) {

        for (int i = activityStack.size() - 1; i > 0; i--) {

            if (null != activityStack.get(i)) {

                if (activityStack.get(i).getClass().equals(cls))

                    break;

                activityStack.get(i).finish();

            }

        }

    }

    /**

     * 结束所有Activity

     */

    public void finishAllActivity() {

        for (int i = 0; i < activityStack.size(); i++) {

            if (null != activityStack.get(i)) {

                activityStack.get(i).finish();

            }

        }

        activityStack.clear();

       // System.exit(0);

    }

    /**

     * 重新登录Activity

     */

    public void LoginActivity() {

        for (int i = 0; i < activityStack.size(); i++) {

            if (null != activityStack.get(i) && !activityStack.get(i).getClass().getName().equals(LoginActivity.class.getName())) {

                activityStack.get(i).finish();

            }

        }

    }

    /**

     * 到首页

     */

    public void goToMainActivity() {

        for (int i = 0; i < activityStack.size(); i++) {

            if (null != activityStack.get(i) && !activityStack.get(i).getClass().getName().equals(MainActivity.class.getName())) {

                activityStack.get(i).finish();

            }

        }

    }

    /**

     * 退出应用程序

     */

    public void AppExit(Context context) {

        try {

            finishAllActivity();

            ActivityManager activityMgr = (ActivityManager) context

                    .getSystemService(Context.ACTIVITY_SERVICE);

            activityMgr.killBackgroundProcesses(context.getPackageName());

            System.exit(0);

        } catch (Exception e) {

        }

    }

}