Activity管理类：用于管理Activity和退出程序

import java.util.Stack; 

   
import android.app.Activity; 
import android.app.ActivityManager; 
import android.content.Context; 
   
/**
 * 
 * @ClassName: com.qust.myutils.AppManager
 * @Description: Activity管理类：用于管理Activity和退出程序
 * 
 */ 
public class AppManager { 
   
    // Activity栈 
    private static Stack<Activity> activityStack; 
    // 单例模式 
    private static AppManager instance; 
   
    private AppManager() { 
    } 
   
    /**
     * 单一实例
     */ 
    public static AppManager getAppManager() { 
        if (instance == null) { 
            instance = new AppManager(); 
        } 
        return instance; 
    } 
   
    /**
     * 添加Activity到堆栈
     */ 
    public void addActivity(Activity activity) { 
        if (activityStack == null) { 
            activityStack = new Stack<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 = null; 
        } 
    } 
   
    /**
     * 结束指定类名的Activity
     */ 
    public void finishActivity(Class<?> cls) { 
        for (Activity activity : activityStack) { 
            if (activity.getClass().equals(cls)) { 
                finishActivity(activity); 
            } 
        } 
    } 
   
    /**
     * 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(); 
    } 
   
    /**
     * 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) { 
        } 
    } 
}
posted @ 2015-12-15 12:31  蜗牛眼里的世界  阅读(335)  评论(0)  编辑  收藏  举报