Android-应用程序更新后WebView html5本地存储不持久 [英] Android - WebView html5 local storage not persistant after app update

问题描述

我有一个使用HTML5本地存储的应用程序.打开或关闭应用程序时，本地存储中的数据在整个应用程序中都是持久的.但是，从商店更新应用程序时，本地存储已被删除.有没有一种方法可以防止在应用程序更新期间丢失本地存储?谢谢！

I have an application that uses HTML5 local storage. The data in local storage is persistent throughout the app, while the app is open or closed. However, when the app was updated from the store, the local storage was erased. Is there a way to prevent the loss of local storage during app updates? Thanks!

mWebView = (WebView) findViewById(R.id.mWebView);
WebSettings mWebSettings = mWebView.getSettings();
mWebSettings.setAllowFileAccess(true);        
mWebSettings.setDatabaseEnabled(true);
mWebSettings.setDatabasePath("/data/data/"+this.getPackageName()+"/databases/");
mWebSettings.setDomStorageEnabled(true);
mWebSettings.setJavaScriptEnabled(true);

推荐答案

在此处

博伊福克斯先生给出的答案是

The answer given by Mr Boyfox was

webView.getSettings().setDomStorageEnabled(true);
webView.getSettings().setDatabaseEnabled(true);
if (Build.VERSION.SDK_INT < Build.VERSION_CODES.KITKAT) {
    webView.getSettings().setDatabasePath("/data/data/" + webView.getContext().getPackageName() + "/databases/");
}

这篇关于Android-应用程序更新后WebView html5本地存储不持久的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！