小程序离开当前页面可以监听吗？

Uncle Drew 2020-09-10 11238 浏览问题模块：其他开发相关的问题

就是用户离开当前页面了，返回上一页了，我需要监听，因为需求是用户离开时，需要提示是否离开，需要弹窗的，如果自定义顶部返回按钮的话,现在好多手机都是右滑或者手势返回的，有哪位大佬知道咋解决吗？

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<div style="text-align:center;margin-top:20px;"><button class="btn btn-primary">确定</button><button class="btn btn-default" style="margin-left:20px;">取消</button></div></div></div></div></div></div></div></div><div class="anwser__area"><div class="answer_container"><div class="anwser__hd"><p class="anwser__title">3 个回答</p></div><div id="comment-list" class=" anwsers__list"><div class="answer_container"><div class="post_comment_area"><ul class="post_comment_list"><li itemprop="answer" itemscope="itemscope" itemtype="http://schema.org/Answer" id="00066e18660a1814f7ea88ac35b4" class="widget_comment js_post_comment_item post_comment_item "><meta check-reduce="" itemprop="image"/><meta check-reduce="" itemprop="upvoteCount" content="0"/><meta check-reduce="" itemprop="url" content="https://developers.weixin.qq.com/community/develop/doc/00088cd46506e8a3feea44dc551800?jumpto=comment&commentid=00066e18660a1814f7ea88ac35b4"/><meta check-reduce="" itemprop="dateCreated" content="Thu Sep 10 2020 20:10:59 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="dateModified" content="Thu Sep 10 2020 20:10:59 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="commentCount" content="0"/><a href="/community/personal/oCJUsw0wzVUrquL2Rwp1V-ikrf14" target="_blank" class="post_comment_owner"><span class="popover__box popover_appreciate popover__box_hide" data-v-0a980b96=""><span class="popover_target"><div class="post_comment_owner_avatar"><img src="https://wx.qlogo.cn/mmhead/hqDXUD6csU8Ox0dPAohoutuJkNPdqW1Qt3YL1tVJhITGydWGtFzBag/64" alt="Jacob" class="post_comment_owner_avatar_image"/></div><strong data-component-identifier="replybox__nick_name" class="post_comment_owner_nickname">Jacob</strong></span></span></a><div class="checking_state_new"></div><span class="post_comment_pos"><span check-reduce="" class="post_comment_time">2020-09-10</span></span><div check-reduce="" class="post_comment_editor_area comment_editor_box" style=";"><div class="post_comment_content post_editor_box"><div class="mode__rich-text-editor mode__rich-text-editor__normal"><div class="mode__rich-text-editor__header mode__rich-text-editor__header__normal"><div class="mode__rich-text-editor__header__extend"/><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__bold"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__bold ql-bold"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>加粗</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__red"><button value="red" class="mode__rich-text-editor__icon mode__rich-text-editor__icon__red ql-red"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>标红</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-code-block"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__code-block ql-code-block"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入代码</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-link"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__link ql-link"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入链接</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-image"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__image ql-image"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入图片</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-video"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__video ql-video"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>上传视频</p></span></div></div><div class="mode__rich-text-editor__body" style=";"/><div class="mode__rich-text-editor__body" style="display:;"><div> 请 <a>登录</a> 后发表内容 </div></div><div class="dialog_wrapper dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component" style="width:600px;"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>新增或编辑超链接</h3></div><div class="dialog_bd"><div class="frm_control_group"><label for="" class="frm_label">链接地址</label><div class="frm_controls"><span class="frm_input_box"><input type="text" value="https://" class="frm_input"/></span></div></div></div><div class="dialog_ft"><a href="javascript:;" class="btn btn_info">确认</a><a href="javascript:;" class="btn btn_default">取消</a></div></div></div></div><div class="dialog_wrapper dialog__insert-video dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component" style="width:600px;"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>插入视频</h3></div><div class="dialog_bd"><div class="frm_control_group"><label for="" class="frm_label">视频链接</label><div class="frm_controls"><span class="frm_input_box"><input type="text" placeholder="仅支持插入腾讯视频" value="" class="frm_input"/></span></div></div></div><div class="dialog_ft"><a href="javascript:;" class="btn btn_info">确认</a><a href="javascript:;" class="btn btn_default">取消</a></div></div></div></div></div><div class="tool_bar tr"><a href="javascript:;" class="btn btn_primary edui-default">发表</a></div></div></div><div itemprop="text" class="post_comment_content" style="display:;"><p>目前能做到的是</p><ol><li>用2.12.0新增的API：wx.enableAlertBeforeUnload</li><li>wx.reLaunch到该页面，返回的时候就不会退出页面了，而是小程序进入后台。</li></ol></div><div itemprop="text" class="post_comment_content" style=";"><p>你好，麻烦通过点击下方“反馈信息”按钮，提供出现问题的。</p><a href="javascript:;" disabled="disabled" class="btn btn_default" style="margin: 12px 0; color: #999">待楼主反馈</a></div><div class="post_comment_info" style="display:;"><div class="mobile_post_comment_info_hd"><div class="mobile_post_comment_time">2020-09-10</div></div><div class="post_comment_opr"><div data-component-identifier="comment-like" class="best_comment_agree click "><div class="comment_topic_agree"><i class="icon_post_opr icon_topic_unagree"/>有用 </div></div><div class="best_comment_unagree"><div class="comment_topic_agree"><i class="icon_post_opr icon_topic_unagree"/></div></div><div class="js_comment best_comment_discuss"><i class="icon_post_opr discuss"/><span check-reduce="" class="post_opr_wording">回复 </span></div></div></div><div check-reduce="" class="dialog_wrapper page_mode_dialog_complain dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>请选择投诉理由</h3></div><div class="dialog_bd"><div class="dialog_complain_list"><div class="mod_access"><ul class="access_list"><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">广告内容</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">违法违规</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">恶意灌水内容</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">其他</div></li></ul></div></div></div></div></div></div><div></div><div></div></li><li itemprop="answer" itemscope="itemscope" itemtype="http://schema.org/Answer" id="0006eefc27090804f1eae2bc3508" class="widget_comment js_post_comment_item post_comment_item "><meta check-reduce="" itemprop="image"/><meta check-reduce="" itemprop="upvoteCount" content="0"/><meta check-reduce="" itemprop="url" content="https://developers.weixin.qq.com/community/develop/doc/00088cd46506e8a3feea44dc551800?jumpto=comment&commentid=0006eefc27090804f1eae2bc3508"/><meta check-reduce="" itemprop="dateCreated" content="Thu Sep 10 2020 19:43:01 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="dateModified" content="Thu Sep 10 2020 19:43:01 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="commentCount" content="0"/><a href="/community/personal/oCJUsw3Zvk-aUNRBjCMwHoUuOTcM" target="_blank" class="post_comment_owner"><span class="popover__box popover_appreciate popover__box_hide" data-v-0a980b96=""><span class="popover_target"><div class="post_comment_owner_avatar"><img src="https://wx.qlogo.cn/mmhead/Axb1eK4AicIA2ys3EKlMmCicute1vmFdnE87Dw2ibEbkVA/64" alt="HF" class="post_comment_owner_avatar_image"/></div><strong data-component-identifier="replybox__nick_name" class="post_comment_owner_nickname">HF</strong></span></span></a><div class="checking_state_new"></div><span class="post_comment_pos"><span check-reduce="" class="post_comment_time">2020-09-10</span></span><div check-reduce="" class="post_comment_editor_area comment_editor_box" style=";"><div class="post_comment_content post_editor_box"><div class="mode__rich-text-editor mode__rich-text-editor__normal"><div class="mode__rich-text-editor__header mode__rich-text-editor__header__normal"><div class="mode__rich-text-editor__header__extend"/><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__bold"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__bold ql-bold"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>加粗</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__red"><button value="red" class="mode__rich-text-editor__icon mode__rich-text-editor__icon__red ql-red"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>标红</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-code-block"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__code-block ql-code-block"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入代码</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-link"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__link ql-link"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入链接</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-image"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__image ql-image"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入图片</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-video"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__video ql-video"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>上传视频</p></span></div></div><div class="mode__rich-text-editor__body" style=";"/><div class="mode__rich-text-editor__body" style="display:;"><div> 请 <a>登录</a> 后发表内容 </div></div><div class="dialog_wrapper dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component" style="width:600px;"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>新增或编辑超链接</h3></div><div class="dialog_bd"><div class="frm_control_group"><label for="" class="frm_label">链接地址</label><div class="frm_controls"><span class="frm_input_box"><input type="text" value="https://" class="frm_input"/></span></div></div></div><div class="dialog_ft"><a href="javascript:;" class="btn btn_info">确认</a><a href="javascript:;" class="btn btn_default">取消</a></div></div></div></div><div class="dialog_wrapper dialog__insert-video dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component" style="width:600px;"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>插入视频</h3></div><div class="dialog_bd"><div class="frm_control_group"><label for="" class="frm_label">视频链接</label><div class="frm_controls"><span class="frm_input_box"><input type="text" placeholder="仅支持插入腾讯视频" value="" class="frm_input"/></span></div></div></div><div class="dialog_ft"><a href="javascript:;" class="btn btn_info">确认</a><a href="javascript:;" class="btn btn_default">取消</a></div></div></div></div></div><div class="tool_bar tr"><a href="javascript:;" class="btn btn_primary edui-default">发表</a></div></div></div><div itemprop="text" class="post_comment_content" style="display:;"><p>没有。</p></div><div itemprop="text" class="post_comment_content" style=";"><p>你好，麻烦通过点击下方“反馈信息”按钮，提供出现问题的。</p><a href="javascript:;" disabled="disabled" class="btn btn_default" style="margin: 12px 0; color: #999">待楼主反馈</a></div><div class="post_comment_info" style="display:;"><div class="mobile_post_comment_info_hd"><div class="mobile_post_comment_time">2020-09-10</div></div><div class="post_comment_opr"><div data-component-identifier="comment-like" class="best_comment_agree click "><div class="comment_topic_agree"><i class="icon_post_opr icon_topic_unagree"/>有用 </div></div><div class="best_comment_unagree"><div class="comment_topic_agree"><i class="icon_post_opr icon_topic_unagree"/></div></div><div class="js_comment best_comment_discuss"><i class="icon_post_opr discuss"/><span check-reduce="" class="post_opr_wording">回复 </span></div></div></div><div check-reduce="" class="dialog_wrapper page_mode_dialog_complain dialog_with_head" style=";"><div class="dialog_wrp_new dialog_component"><div class="dialog"><a href="javascript:;" class="icon16_opr closed pop_closed">关闭</a><div class="dialog_hd"><h3>请选择投诉理由</h3></div><div class="dialog_bd"><div class="dialog_complain_list"><div class="mod_access"><ul class="access_list"><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">广告内容</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">违法违规</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">恶意灌水内容</div></li><li class="access_list_item access_list_item_hasMore"><div class="access_list_item_head">其他</div></li></ul></div></div></div></div></div></div><div></div><div></div></li><li itemprop="answer" itemscope="itemscope" itemtype="http://schema.org/Answer" id="0006488bcb46e0b4f0ead5f8751c" class="widget_comment js_post_comment_item post_comment_item "><meta check-reduce="" itemprop="image"/><meta check-reduce="" itemprop="upvoteCount" content="0"/><meta check-reduce="" itemprop="url" content="https://developers.weixin.qq.com/community/develop/doc/00088cd46506e8a3feea44dc551800?jumpto=comment&commentid=0006488bcb46e0b4f0ead5f8751c"/><meta check-reduce="" itemprop="dateCreated" content="Thu Sep 10 2020 19:41:35 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="dateModified" content="Thu Sep 10 2020 19:41:35 GMT+0800 (China Standard Time)"/><meta check-reduce="" itemprop="commentCount" content="0"/><a href="/community/personal/oCJUsw_2Sw6k-tduvV5RPAGZCzlE" target="_blank" class="post_comment_owner"><span class="popover__box popover_appreciate popover__box_hide" data-v-0a980b96=""><span class="popover_target"><div class="post_comment_owner_avatar"><img src="https://wx.qlogo.cn/mmhead/IlxmQLqA0RZDeU1R6Teo7yuvwIiaEf9P1xicPib3CfonUU/64" alt="拾忆" class="post_comment_owner_avatar_image"/></div><strong data-component-identifier="replybox__nick_name" class="post_comment_owner_nickname">拾忆</strong></span></span></a><div class="checking_state_new"><span class="ic_contributer"/><span class="ic_professor"/></div><span class="post_comment_pos"><span check-reduce="" class="post_comment_time">2020-09-10</span></span><div check-reduce="" class="post_comment_editor_area comment_editor_box" style=";"><div class="post_comment_content post_editor_box"><div class="mode__rich-text-editor mode__rich-text-editor__normal"><div class="mode__rich-text-editor__header mode__rich-text-editor__header__normal"><div class="mode__rich-text-editor__header__extend"/><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__bold"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__bold ql-bold"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>加粗</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__red"><button value="red" class="mode__rich-text-editor__icon mode__rich-text-editor__icon__red ql-red"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>标红</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-code-block"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__code-block ql-code-block"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入代码</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-link"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__link ql-link"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入链接</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-image"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__image ql-image"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>插入图片</p></span></div><div class="weui-desktop-tooltip__wrp weui-desktop-tooltip__wrp__ql-video"><button class="mode__rich-text-editor__icon mode__rich-text-editor__icon__video ql-video"/><span class="weui-desktop-tooltip weui-desktop-tooltip__" style=";"><p>上传视频</p></span></div></div><div class="mode__rich-text-editor__body" style=";"/><div class="mode__rich-text-editor__body" style="display:;"><div>

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