安卓Activity管理利器-优快云博客

安卓开发一般都需要进行Activity的管理，常用操作老司机已为你封装完毕，经常有小伙伴问怎么进行管理，那我告诉你，你可以用这份工具进行管理，具体可以查看源码，现在为你开车，Demo传送门。

站点

管理和回收Activity → AppDavikActivityMgr

getScreenManager      : 单例堆栈集合对象
removeActivity        : 堆栈中销毁并移除
removeAllActivity     : 栈中销毁并移除所有Act对象
currentActivity       : 取当前Act对象
getCurrentActivityName: 获得当前Act的类名
addActivity           : 将Act纳入推栈集合中
exitApp               : 退出栈中所有Activity

具体路线

public class AppDavikActivityMgr {


//存储ActivityStack
private static Stack<Activity> activityStack = new Stack<Activity>();

//单例模式 private static AppDavikActivityMgr instance;

/**
 * 单列堆栈集合对象
 * @return AppDavikActivityMgr 单利堆栈集合对象
 */
public static AppDavikActivityMgr getScreenManager() { if (instance == null) { synchronized (AppDavikActivityMgr.class){ if (instance == null) { instance = new AppDavikActivityMgr(); } } } return instance; } /** * 堆栈中销毁并移除 * @param activity 指定Act对象 */ public void removeActivity(Activity activity) { AppLogMessageMgr.i("AppDavikActivityMgr-->>removeActivity", activity != null ? activity.toString() : ""); if (null != activity) { activityStack.remove(activity); activity.finish(); activity = null; } }

/**
 * 栈中销毁并移除所有Act对象
 */
public void removeAllActivity() {
    if (null != activityStack && activityStack.size() > 0) { //创建临时集合对象 Stack<Activity> activityTemp = new Stack<Activity>(); for (Activity activity : activityStack) { if (null != activity) { //添加到临时集合中 activityTemp.add(activity); //结束Activity activity.finish(); } } activityStack.removeAll(activityTemp); } AppLogMessageMgr.i("AppDavikActivityMgr-->>removeAllActivity", "removeAllActivity"); System.gc(); System.exit(0); }

/**
 * 获取当前Act对象
 * @return Activity 当前act
 */
public Activity currentActivity() {
    Activity activity = null;
    if (!activityStack.empty()){ activity = activityStack.lastElement(); } AppLogMessageMgr.i("AppDavikActivityMgr-->>currentActivity", activity + ""); return activity; }

/**
 * 获得当前Act的类名
 * @return String
 */
public String getCurrentActivityName() {
    String actSimpleName = "";
    if (!activityStack.empty()) { actSimpleName = activityStack.lastElement().getClass().getSimpleName(); } AppLogMessageMgr.i("AppDavikActivityMgr-->>getCurrentActivityName", actSimpleName); return actSimpleName; }

/**
 * 将Act纳入推栈集合中
 * @param activity Act对象
 */
public void addActivity(Activity activity) {
    AppLogMessageMgr.i("AppDavikActivityMgr-->>addActivity",  activity != null ? activity.toString() : ""); if (null == activityStack) { activityStack = new Stack<Activity>(); } activityStack.add(activity); } /** * 退出栈中所有Activity * @param cls * @return void */ public void exitApp(Class<?> cls) { AppLogMessageMgr.i("AppDavikActivityMgr-->>exitApp", "exitApp-->>占用内存：" + Runtime.getRuntime().totalMemory()); while (true) { Activity activity = currentActivity(); if (null == activity) { break; } if (activity.getClass().equals(cls)) { break; } removeActivity(activity); } System.gc(); System.exit(0); }