Tenemos la solución a este apuro, o por lo menos eso esperamos. Si tienes preguntas puedes dejarlo en el apartado de comentarios, que con gusto te responderemos
Solución:
No uses estos:
viewer.getSettings().setAppCacheMaxSize(1024*1024*8);
viewer.getSettings().setAppCachePath("/data/data/com.your.package.appname/cache");
viewer.getSettings().setAppCacheEnabled(true);
Estos no tienen nada que ver con el caché interno predeterminado de la vista web. Appcache es una característica completamente diferente que te permite ejecutar el sitio web sin conexión a Internet. No funciona tan bien y probablemente no quieras usarlo.
Con configurar esto: viewer.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT) es suficiente.
Por supuesto, el enfoque en caché debería ser más rápido. Esa es la razón exacta por la que el almacenamiento en caché existe en primer lugar.
Pero debería estar bien a menos que deshabilite específicamente el almacenamiento en caché para la vista web. Si no lo hace, usará el caché de forma predeterminada.
/*
public abstract void setAppCacheEnabled (boolean flag)
Sets whether the Application Caches API should be enabled. The default is false.
Note that in order for the Application Caches API to be enabled, a valid database
path must also be supplied to setAppCachePath(String).
Parameters
flag : true if the WebView should enable Application Caches
*/
// Enable the caching for web view
mWebView.getSettings().setAppCacheEnabled(true);
/*
public abstract void setAppCachePath (String appCachePath)
Sets the path to the Application Caches files. In order for the Application Caches
API to be enabled, this method must be called with a path to which the application
can write. This method should only be called once: repeated calls are ignored.
Parameters
appCachePath : a String path to the directory containing Application Caches files.
*/
/*
public abstract File getCacheDir ()
Returns the absolute path to the application specific cache directory on the
filesystem. These files will be ones that get deleted first when the device runs
low on storage. There is no guarantee when these files will be deleted.
Note: you should not rely on the system deleting these files for you; you should
always have a reasonable maximum, such as 1 MB, for the amount of space you consume
with cache files, and prune those files when exceeding that space.
The returned path may change over time if the calling app is moved to an adopted
storage device, so only relative paths should be persisted.
Apps require no extra permissions to read or write to the returned path,
since this path lives in their private storage.
Returns
The path of the directory holding application cache files.
*/
/*
public String getPath ()
Returns the path of this file.
*/
// Specify the app cache path
mWebView.getSettings().setAppCachePath(mContext.getCacheDir().getPath());
/*
public abstract void setCacheMode (int mode)
Overrides the way the cache is used. The way the cache is used is based on the
navigation type. For a normal page load, the cache is checked and content is
re-validated as needed. When navigating back, content is not re-validated, instead
the content is just retrieved from the cache. This method allows the client to
override this behavior by specifying one of
LOAD_DEFAULT,
LOAD_CACHE_ELSE_NETWORK,
LOAD_NO_CACHE or
LOAD_CACHE_ONLY.
The default value is LOAD_DEFAULT.
Parameters
mode : the mode to use
*/
/*
public static final int LOAD_DEFAULT
Default cache usage mode. If the navigation type doesn't impose any specific
behavior, use cached resources when they are available and not expired, otherwise
load resources from the network. Use with setCacheMode(int).
Constant Value: -1 (0xffffffff)
*/
/*
public static final int LOAD_CACHE_ELSE_NETWORK
Use cached resources when they are available, even if they have expired. Otherwise
load resources from the network. Use with setCacheMode(int).
Constant Value: 1 (0x00000001)
*/
/*
public static final int LOAD_NO_CACHE
Don't use the cache, load from the network. Use with setCacheMode(int).
Constant Value: 2 (0x00000002)
*/
/*
public static final int LOAD_CACHE_ONLY
Don't use the network, load from the cache. Use with setCacheMode(int).
Constant Value: 3 (0x00000003)
*/
// Set the cache mode
mWebView.getSettings().setCacheMode(WebSettings.LOAD_DEFAULT);
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