求解，手機(jī)微信頁面能否檢測(cè)后退頁面或者在任務(wù)管理器關(guān)閉微信程序了
花花E王子
2017-01-06 11:08:59
3 回答
一瞬兒光
TA貢獻(xiàn)178條經(jīng)驗(yàn) 獲得超70個(gè)贊
????????function?getPage()?{
????????????var?hidden,?state,?visibilityChange;
????????????if?(typeof?document.hidden?!==?"undefined")?{
????????????????hidden?=?"hidden";
????????????????visibilityChange?=?"visibilitychange";
????????????????state?=?"visibilityState";
????????????}?else?if?(typeof?document.mozHidden?!==?"undefined")?{
????????????????hidden?=?"mozHidden";
????????????????visibilityChange?=?"mozvisibilitychange";
????????????????state?=?"mozVisibilityState";
????????????}?else?if?(typeof?document.msHidden?!==?"undefined")?{
????????????????hidden?=?"msHidden";
????????????????visibilityChange?=?"msvisibilitychange";
????????????????state?=?"msVisibilityState";
????????????}?else?if?(typeof?document.webkitHidden?!==?"undefined")?{
????????????????hidden?=?"webkitHidden";
????????????????visibilityChange?=?"webkitvisibilitychange";
????????????????state?=?"webkitVisibilityState";
????????????}
????????????return?{
????????????????'hidden':?hidden,
????????????????'visibilityChange':?visibilityChange,
????????????????'state':?state
????????????};
????????}
????????var?Page=?getPage();
????????document.addEventListener(Page['visibilityChange'],?function()?{
????????????????if(document[Page['state']]?==?'hidden')?{
???????????????????//關(guān)閉
????????????????}?else?{
???????????????????//未關(guān)閉
????????????????}
????????},?false);
一瞬兒光
TA貢獻(xiàn)178條經(jīng)驗(yàn) 獲得超70個(gè)贊
回退和關(guān)閉時(shí)兩個(gè)需求，都可以監(jiān)聽。
后退：
window.addEventListener("popstate",function(){
????//dosthing...???????
});退出：
?document.addEventListener(Page['visibilityChange'],?function()?{
????????if(document[Page['state']]?==?'hidden')?{
???????????//關(guān)閉
????????}?else?{
???????????//未關(guān)閉
????????}
},?false);
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