背景:由於主介面可能彈窗很多彈窗,需求要求某個dialog必須在前面顯示,如果再消失監聽中,線性判斷,每個dialog都去判斷工作量巨大,且不易閱讀。所以做了一個彈窗排序的專案。這裡只是講解單個activity中的彈窗排序,demo中還有維護多個activity 彈窗排序,詳細看最下面github
做到工具元件化,不侵入原專案程式碼,無需繼承,使用方便。
原理:當有一個dialog新增顯示時,判斷等級是否大於,大於則顯示,否則則新增到等待佇列
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));
}
}
新增集合中要根據等級排序
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消失監聽,整理集合,判斷最上層dialog 和等待佇列dialog等級對比
@Override
public 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;
}
}
}
呼叫:
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);
}
結果展示:
這裡只是單個activity中新增排列顯示dialog的部分重要程式碼,要想要全部程式碼,下面github