Update my.enableAlertBeforeUnload.md #2120
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1、修改弹窗示例图片。 2、修改错误码 8 解决方案。
hbhftgf
reviewed
Nov 28, 2022
| @@ -47,7 +47,7 @@ Object 类型，参数如下： | |||
| | **错误码** | **描述** | **解决方案** | | |||
| | --- | --- | --- | | |||
| | 7 | has not found page when enableAlertBeforeUnload has been invoked | 执行接口时小程序还未创建出任何一个页面实例，建议在 Page.onReady 回调内执行 my.enableAlertBeforeUnload。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 若某个页面比较复杂（即可能是第一个页面，也可能不是第一个页面），可以通过 [getCurrentPages](https://opendocs.alipay.com/mini/framework/getcurrentpages) 获取页面栈并判断当前页面实例是不是处于第一个。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 不支持在首页调用此弹窗，暂无解决方案。 | | |||
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"不支持在首页调用此弹窗，暂无解决方案" -- 1，是调 API ，不是调用弹窗；2，不是”暂无解决方案“，而是”不需要处理“。
hbhftgf
reviewed
Nov 28, 2022
| @@ -47,7 +47,7 @@ Object 类型，参数如下： | |||
| | **错误码** | **描述** | **解决方案** | | |||
| | --- | --- | --- | | |||
| | 7 | has not found page when enableAlertBeforeUnload has been invoked | 执行接口时小程序还未创建出任何一个页面实例，建议在 Page.onReady 回调内执行 my.enableAlertBeforeUnload。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 若某个页面比较复杂（即可能是第一个页面，也可能不是第一个页面），可以通过 [getCurrentPages](https://opendocs.alipay.com/mini/framework/getcurrentpages) 获取页面栈并判断当前页面实例是不是处于第一个。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 不支持在首页调用此弹窗，暂无解决方案。 | | |||
| | 9 | client not support enableAlertBeforeUnload | 一般不会出现，此时表明当前客户端不支持调用此接口，暂无解决方案。 | | |||
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不是”暂无解决方案“，而是”不需要处理“。给人积极有效的建议。不要吓唬人
修改解决方案 8、 9 描述，需要去核实一下错误码 9 怎么复现，暂时先不和
错误码 8 添加不需要处理此报错
amei1998
reviewed
Nov 29, 2022
| @@ -47,7 +47,7 @@ Object 类型，参数如下： | |||
| | **错误码** | **描述** | **解决方案** | | |||
| | --- | --- | --- | | |||
| | 7 | has not found page when enableAlertBeforeUnload has been invoked | 执行接口时小程序还未创建出任何一个页面实例，建议在 Page.onReady 回调内执行 my.enableAlertBeforeUnload。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 不支持在首页调用此接口，建议在非首页的页面去调用此接口。 | | |||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 不支持在首页调用此接口，不需要处理此报错，建议在非首页的页面去调用此接口。 | | |||
| | 9 | client not support enableAlertBeforeUnload | 一般不会出现，出现则表明当前客户端不支持调用此接口，请使用支持的客户端版本调用此接口。 | | |||
|
突然有个疑问：这个 API 是对当前页面生效，还是在应用级生效？ |
@hbhftgf 这个 api 是只对当前页面生效的，当小程序离开当前页面时，会有弹窗弹出 |
hbhftgf
reviewed
Feb 20, 2023
| | 7 | has not found page when enableAlertBeforeUnload has been invoked | 执行接口时小程序还未创建出任何一个页面实例，建议在 Page.onReady 回调内执行 my.enableAlertBeforeUnload。 | | ||
| | 8 | can not invoke enableAlertBeforeUnload at first page | 若某个页面比较复杂（即可能是第一个页面，也可能不是第一个页面），可以通过 [getCurrentPages](https://opendocs.alipay.com/mini/framework/getcurrentpages) 获取页面栈并判断当前页面实例是不是处于第一个。 | | ||
| | 9 | client not support enableAlertBeforeUnload | 一般不会出现，此时表明当前客户端不支持调用此接口，暂无解决方案。 | | ||
| | 7 | has not found page when enableAlertBeforeUnload has been invoked | 调用接口时小程序还未创建出任何一个页面实例。请在 Page.onReady 以后调用。 | |
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“调用接口时小程序还未创建出任何一个页面实例” --- 这意思是只要之前已经创建过页面实例就可以成功吗？如果之前创建的是 A 和 B，现在是在 C 的页面 JS 文件里调用，什么是什么结果？从 C 回到 B 有弹框，还是从 B 回到 A 会有弹框？
1、修改示例图片。 2、修改错误码 7 的解决方案
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1、修改弹窗示例图片。
2、修改错误码 8 解决方案。