PopWindow

List<Popup> popupList=new ArrayList<>();//Popup是一個類，中存放的是img的圖片，和一個String類型的文字
Popup popup1=new Popup("天氣",R.drawable.tianqitupian);
Popup popup2=new Popup("離線",R.drawable.lixiantupian);
Popup popup3=new Popup("夜間",R.drawable.yejiantupian);
Popup popup4=new Popup("搜索",R.drawable.sousuotupian);
Popup popup5=new Popup("掃一掃",R.drawable.saoyisaotupian);
Popup popup6=new Popup("設置",R.drawable.shezhitupian);
popupList.add(popup1);
popupList.add(popup2);
popupList.add(popup3);
popupList.add(popup4);
popupList.add(popup5);
popupList.add(popup6);
popupView = MainActivity.this.getLayoutInflater().inflate(R.layout.popupwindow, null);//寫一個popupwindow中爲listView
popup_lv = popupView.findViewById(R.id.popup_lv);
PopupAdapter popupAdapter=new PopupAdapter(MainActivity.this,popupList);
popup_lv.setAdapter(popupAdapter);
popup_lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {//執行對應的操作
    @Override
    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
        if(i==0){
            Toast.makeText(MainActivity.this, "0", Toast.LENGTH_SHORT).show();
        }
        if(i==1){
            Intent intent = new Intent(MainActivity.this,LixianActivity.class);
            startActivity(intent);
            Toast.makeText(MainActivity.this, "1", Toast.LENGTH_SHORT).show();
        }
        if(i==2){
            int uiMode;//夜間模式
            uiMode = getResources().getConfiguration().uiMode& Configuration.UI_MODE_NIGHT_MASK;
            if(uiMode == Configuration.UI_MODE_NIGHT_YES){
                getDelegate().setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_NO);
                getSharedPreferences("theme",MODE_PRIVATE).edit().putBoolean("night_theme",false).commit();
            }else if(uiMode == Configuration.UI_MODE_NIGHT_NO){
                getDelegate().setDefaultNightMode(AppCompatDelegate.MODE_NIGHT_YES);
               getSharedPreferences("theme",MODE_PRIVATE).edit().putBoolean("night_theme", true).commit();
            }
            recreate();
            Toast.makeText(MainActivity.this, "2", Toast.LENGTH_SHORT).show();
        }
        if(i==3){
            Toast.makeText(MainActivity.this, "3", Toast.LENGTH_SHORT).show();
        }
        if(i==4){
            Toast.makeText(MainActivity.this, "4", Toast.LENGTH_SHORT).show();
        }
        if(i==5){
            Toast.makeText(MainActivity.this, "5", Toast.LENGTH_SHORT).show();
            Intent intent = new Intent(MainActivity.this,ShezhiActivity.class);
            startActivity(intent);
        }
    }
});
PopupWindow popupWindow=new PopupWindow(popupView,400,600);//設置大小
popupWindow.setBackgroundDrawable(new ColorDrawable(Color.parseColor("#EEEEEE")));//設置顏色
popupWindow.setFocusable(true);
popupWindow.setOutsideTouchable(true);
popupWindow.update();
popupWindow.showAsDropDown(sandian,0,0);//特別重要