Activity管理类

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) {
}
}
}

@Override
protected void onStart() {
super.onStart();
AppStackManager.getInstance().addActivity(this);//加入栈
}

@Override
protected void onDestroy() {

AppStackManager.getInstance().finishActivity(this);
super.onDestroy();
}