[1].[代码] 删除保存于手机上的缓存. 跳至 [1] [2] [3]
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// clear the cache before time numDays |
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private int clearCacheFolder(File dir, long numDays) { |
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int deletedFiles = 0; |
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if (dir!= null && dir.isDirectory()) { |
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try { |
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for (File child:dir.listFiles()) { |
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if (child.isDirectory()) { |
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deletedFiles += clearCacheFolder(child, numDays); |
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} |
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if (child.lastModified() < numDays) { |
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if (child.delete()) { |
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deletedFiles++; |
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} |
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} |
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} |
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} catch(Exception e) { |
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e.printStackTrace(); |
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} |
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} |
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return deletedFiles; |
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} |
[2].[代码] 打开关闭使用缓存 跳至 [1] [2] [3]
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//优先使用缓存： |
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WebView.getSettings().setCacheMode(WebSettings.LOAD_CACHE_ELSE_NETWORK); |
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//不使用缓存： |
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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]
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File file = CacheManager.getCacheFileBaseDir(); |
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if (file != null && file.exists() && file.isDirectory()) { |
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for (File item : file.listFiles()) { |
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item.delete(); |
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} |
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file.delete(); |
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} |
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|
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context.deleteDatabase("webview.db"); |
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context.deleteDatabase("webviewCache.db"); |