做專案的時候發現了這個問題

setOutsideTouchable（true）導致setOnClickListener裡面的判斷條件失效

第一次點選“三國演義”按鈕彈出下面“張飛，關羽”PopupWindow，第二次點選“三國演義”關閉popwindow,需求就是如此簡單，但是卻發現第二次點選popwindow的時候無論如何關閉不了

程式碼也很簡單

public class MainActivity extends AppCompatActivity {

    PopupWindow window;
    @Override
    protected
 
 void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                if
 
(window!=null&&window.isShowing()){
                    window.dismiss();
                }else {
                    showPopwindow(view);
                }
            }
        });
    }

    private void showPopwindow(View view) {
        View contentView = LayoutInflater.from(this).inflate(R.layout.pop_item, null
 
, false);
        window = new PopupWindow(contentView, LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, false);//並不獲取焦點，防止攔截其他點選事件
        window.setOutsideTouchable(true);
        window.setBackgroundDrawable(new ColorDrawable(Color.WHITE));
        window.showAsDropDown(view, 0, 2);
    }
}

原來window.setOutsideTouchable(true);這句話意味著只要點選windows之外的地方都要銷燬這個windows，所以setOnClickListener中window的狀態一定是關閉的了，這樣才會每次都去建立windows，造成了popupwindow一直顯示的錯誤

解決方案：

package com.listenerconflict;

import android.graphics.Color;
import android.graphics.drawable.ColorDrawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.PopupWindow;

public class MainActivity extends AppCompatActivity {

    PopupWindow window;
    private int firstTime = 0;
    private int secondTime = 0;
    private boolean hasDimiss = false;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        findViewById(R.id.btn).setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                secondTime = (int) System.currentTimeMillis();

                if(hasDimiss&&secondTime-firstTime<=200&&secondTime-firstTime!=0){//時間這麼短就進入這個方法說明不是手點選的而是直接攔截的
                    secondTime = firstTime = 0;
                    hasDimiss = false;
                }else {
                    if(window!=null&&window.isShowing()){
                        window.dismiss();
                    }else {
                        showPopwindow(view);
                    }
                }

            }
        });
    }

    private void showPopwindow(View view) {
        View contentView = LayoutInflater.from(this).inflate(R.layout.pop_item, null, false);
        window = new PopupWindow(contentView, LinearLayout.LayoutParams.MATCH_PARENT, LinearLayout.LayoutParams.WRAP_CONTENT, false);//並不獲取焦點，防止攔截其他點選事件
        window.setOutsideTouchable(true);
        window.setBackgroundDrawable(new ColorDrawable(Color.WHITE));
        window.setOnDismissListener(new PopupWindow.OnDismissListener() {
            @Override
            public void onDismiss() {
                firstTime = (int) (System.currentTimeMillis());
                hasDimiss = true;
            }
        });
        window.showAsDropDown(view, 0, 2);
    }
}