[1].[代码] 删除保存于手机上的缓存. 跳至 [1] [2] [3]
01 |
// clear the cache before time numDays |
02 |
private int clearCacheFolder(File dir, long numDays) {
|
03 |
int deletedFiles = 0;
|
04 |
if (dir!= null && dir.isDirectory()) {
|
05 |
try {
|
06 |
for (File child:dir.listFiles()) {
|
07 |
if (child.isDirectory()) {
|
08 |
deletedFiles += clearCacheFolder(child, numDays);
|
09 |
}
|
10 |
if (child.lastModified() < numDays) {
|
11 |
if (child.delete()) {
|
12 |
deletedFiles++;
|
13 |
}
|
14 |
}
|
15 |
}
|
16 |
} catch(Exception e) {
|
17 |
e.printStackTrace();
|
18 |
}
|
19 |
}
|
20 |
return deletedFiles;
|
21 |
} |
[2].[代码] 打开关闭使用缓存 跳至 [1] [2] [3]
1 |
//优先使用缓存： |
2 |
WebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK); |
3 |
4 |
//不使用缓存： |
5 |
WebView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE); |
[3].[代码] 在退出应用的时候加上如下代码 跳至 [1] [2] [3]
01 |
File file = CacheManager.getCacheFileBaseDir(); |
02 |
if (file != null && file.exists() && file.isDirectory()) {
|
03 |
for (File item : file.listFiles()) {
|
04 |
item.delete();
|
05 |
}
|
06 |
file.delete();
|
07 |
}
|
08 |
|
09 |
context.deleteDatabase("webview.db");
|
10 |
context.deleteDatabase("webviewCache.db");
|