var activities:MutableList<Activity> = arrayListOf()

fun ActivityAdd(activity:Activity){
  activities.add(activity)
}

fun ActivityFinishAll(){
  for (activity:Activity in activities){
    if (activity != null){
      activity.finish()
      activities.remove(activity)
    }
  }

}

ActivityAdd(this)

  override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    setContentView(R.layout.activity_main)

    ActivityAdd(this)
    ...
  }

fun ActivityRemove(activity: Activity){
  activities.remove(activity)
}

//關(guān)閉當(dāng)前activity方法一 
  finish(); 
//關(guān)閉當(dāng)前界面方法二 
  android.os.Process.killProcess(android.os.Process.myPid());    
//關(guān)閉當(dāng)前界面方法三 
  System.exit(0);  
//關(guān)閉當(dāng)前界面方法四 
  this.onDestroy(); 

Intent intent = new Intent(); 
intent.setClass(TableActivity.this, FrameActivity.class); 
intent.addFlags(Intent.FLAG_ACTIVITY_SINGLE_TOP);//設(shè)置不要刷新將要跳到的界面 
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);//它可以關(guān)掉所要到的界面中間的activity 
startActivity(intent); 

Intent intent = new Intent(); 
intent.setClass(TableActivity.this, FrameActivity.class); 
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);//它可以關(guān)掉所要到的界面中間的activity 
startActivity(intent); 

Intent intent1 = new Intent(TableActivity.this, FrameActivity.class);  
intent1.addFlags(Intent.FLAG_ACTIVITY_REORDER_TO_FRONT);   
startActivity(intent1);  

package com.layout;  
import java.util.LinkedList;  
import java.util.List;  
import android.app.Activity;  
import android.app.Application;  
/** 
 * 一個類 用來結(jié)束所有后臺activity 
 * @author Administrator 
 * 
 */ 
public class SysApplication extends Application { 
  //運(yùn)用list來保存?zhèn)兠恳粋€activity是關(guān)鍵 
  private List<Activity> mList = new LinkedList<Activity>(); 
  //為了實現(xiàn)每次使用該類時不創(chuàng)建新的對象而創(chuàng)建的靜態(tài)對象 
  private static SysApplication instance;  
  //構(gòu)造方法 
  private SysApplication(){} 
  //實例化一次 
  public synchronized static SysApplication getInstance(){  
    if (null == instance) {  
      instance = new SysApplication();  
    }  
    return instance;  
  }  
  // add Activity  
  public void addActivity(Activity activity) {  
    mList.add(activity);  
  }  
  //關(guān)閉每一個list內(nèi)的activity 
  public void exit() {  
    try {  
      for (Activity activity:mList) {  
        if (activity != null)  
          activity.finish();  
      }  
    } catch (Exception e) {  
      e.printStackTrace();  
    } finally {  
      System.exit(0);  
    }  
  }  
  //殺進(jìn)程 
  public void onLowMemory() {  
    super.onLowMemory();    
    System.gc();  
  }  
} 

SysApplication.getInstance().addActivity(this); 

//關(guān)閉整個程序 
SysApplication.getInstance().exit()