背景：由于主界面可能彈窗很多彈窗，需求要求某個(gè)dialog必須在前面顯示，如果再消失監(jiān)聽中，線性判斷，每個(gè)dialog都去判斷工作量巨大，且不易閱讀。所以做了一個(gè)彈窗排序的項(xiàng)目。這里只是講解單個(gè)activity中的彈窗排序，demo中還有維護(hù)多個(gè)activity 彈窗排序，詳細(xì)看最下面github

做到工具組件化，不侵入原項(xiàng)目代碼，無需繼承，使用方便。

原理：當(dāng)有一個(gè)dialog添加顯示時(shí)，判斷等級(jí)是否大于，大于則顯示，否則則添加到等待隊(duì)列

private void show(int level, Dialog dialog, DialogInterface.OnDismissListener onDismissListener){ if(dialog == null){ return; } DialogLevelModel topDialog = getTopShowingDialog(); DialogLevelModel inModel = new DialogLevelModel(level, dialog, activity); new DismissListenerBinder(inModel,this,onDismissListener).bind(); if(topDialog ==null || level >= topDialog.level){ realShow(inModel); }else { waitList.sortAdd(new DialogLevelModel(level, dialog, activity)); }}

添加集合中要根據(jù)等級(jí)排序

public boolean sortAdd(DialogLevelModel inModel){ Log.e('DLArrayList','add---'+inModel.level); int lastSize = size(); if(lastSize == 0){ return super.add(inModel); } int index = 0; for (int i = size()-1; i >=0; i--){ DialogLevelModel temp = get(i); if(inModel.level >= temp.level){ index = i+1; break; } } super.add(index,inModel); return true;}

顯示的時(shí)候，判斷activity是否存在，整理集合

private void realShow(DialogLevelModel dialogLevelModel){ waitList.remove(dialogLevelModel); showList.add(dialogLevelModel); if(dialogLevelModel.activity != null && dialogLevelModel.activity.get() != null && !dialogLevelModel.activity.get().isFinishing()){ dialogLevelModel.dialog.show(); }else{ destory(); }}

收到dialog消失監(jiān)聽，整理集合，判斷最上層dialog 和等待隊(duì)列dialog等級(jí)對(duì)比

@Overridepublic void onDismiss(DialogLevelModel dialogLevelModel) { for(int i = showList.size()-1;i>=0;i--){ if(showList.get(i).dialog == dialogLevelModel.dialog){ showList.remove(i); break; } } boolean flag =true; while (flag) { if(waitList.size() == 0){ break; } DialogLevelModel tempModel = waitList.get(waitList.size() -1); if (getTopShowingDialog() == null) { realShow(tempModel); } else if (tempModel.level >= getTopShowingDialog().level) { realShow(tempModel); } else { break; } }}

調(diào)用：

for(int i = 0;i<15;i++){ final int level2 = (int)(1+Math.random()*1000); final Dialog dialog2 = showCommonDialog('content:level-'+level2); Log.e('dialoglevl','level:'+level2); if(i ==13){ dialogLevelManager.showDelay(level2,2000,dialog2,MainActivity.this); continue; } if(i ==14){ dialogLevelManager.showDelay(level2,3000,dialog2,MainActivity.this); continue; } dialogLevelManager.show(level2,dialog2,MainActivity.this);}

結(jié)果展示：

這里只是單個(gè)activity中添加排列顯示dialog的部分重要代碼，要想要全部代碼，下面github

DialogLevel如果感覺有用，請(qǐng)star哦

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