Java 类android.webkit.CacheManager 实例源码

/**
 * 清除app缓存
 */
public void clearAppCache() {
    //清除webview缓存
    File file = CacheManager.getCacheFileBaseDir();
    if (file != null && file.exists() && file.isDirectory()) {
        for (File item : file.listFiles()) {
            item.delete();
        }
        file.delete();
    }
    deleteDatabase("webview.db");
    deleteDatabase("webview.db-shm");
    deleteDatabase("webview.db-wal");
    deleteDatabase("webviewCache.db");
    deleteDatabase("webviewCache.db-shm");
    deleteDatabase("webviewCache.db-wal");
    //清除数据缓存
    clearCacheFolder(getFilesDir(), System.currentTimeMillis());
    clearCacheFolder(getCacheDir(), System.currentTimeMillis());
    //2.2版本才有将应用缓存转移到sd卡的功能
    if (isMethodsCompat(android.os.Build.VERSION_CODES.FROYO)) {
        clearCacheFolder(MethodsCompat.getExternalCacheDir(this), System.currentTimeMillis());
    }
    //清除编辑器保存的临时内容
    Properties props = getProperties();
    for (Object key : props.keySet()) {
        String _key = key.toString();
        if (_key.startsWith("temp"))
            removeProperty(_key);
    }
}

/**
 * 清除缓存
 */
public void clearAppCache() {
    // 清除webview缓存
    File file = CacheManager.getCacheFileBaseDir();
    if (file != null && file.exists() && file.isDirectory()) {
        for (File item : file.listFiles()) {
            item.delete();
        }
        file.delete();
    }

    deleteDatabase("webview.db");
    deleteDatabase("webview.db-shm");
    deleteDatabase("webview.db-wal");
    deleteDatabase("webviewCache.db");
    deleteDatabase("webviewCache.db-shm");
    deleteDatabase("webviewCache.db-wal");

    // 清除数据缓存
    clearCacheFolder(getFilesDir(), System.currentTimeMillis());
    clearCacheFolder(getCacheDir(), System.currentTimeMillis());

    // 2.2版本才有将应用缓存转移到sd卡的功能
    if (isMethodsCompat(android.os.Build.VERSION_CODES.FROYO)) {
        clearCacheFolder(getExternalCacheDir(), System.currentTimeMillis());
    }
    // 清楚编辑器保存的临时文件
    Properties props = getProperties();

    for (Object key : props.keySet()) {
        String _key = key.toString();
        if (_key.startsWith("temp"))
            removeProperty(_key);
    }
}

/**
 * 清除app缓存
 */
public void clearAppCache()
{
    //清除webview缓存
    File file = CacheManager.getCacheFileBaseDir();  
    if (file != null && file.exists() && file.isDirectory()) {  
        for (File item : file.listFiles()) {  
            item.delete();  
        }  
        file.delete();  
    }         
    deleteDatabase("webview.db");  
    deleteDatabase("webview.db-shm");  
    deleteDatabase("webview.db-wal");  
    deleteDatabase("webviewCache.db");  
    deleteDatabase("webviewCache.db-shm");  
    deleteDatabase("webviewCache.db-wal");  
    //清除数据缓存
    clearCacheFolder(getFilesDir(),System.currentTimeMillis());
    clearCacheFolder(getCacheDir(),System.currentTimeMillis());
    //2.2版本才有将应用缓存转移到sd卡的功能
    if(isMethodsCompat(android.os.Build.VERSION_CODES.FROYO)){
        clearCacheFolder(MethodsCompat.getExternalCacheDir(this),System.currentTimeMillis());
    }
    //清除编辑器保存的临时内容
    Properties props = getProperties();
    for(Object key : props.keySet()) {
        String _key = key.toString();
        if(_key.startsWith("temp"))
            removeProperty(_key);
    }
}

/**
 * 清除app缓存
 */
public void clearAppCache()
{
    //清除webview缓存
    File file = CacheManager.getCacheFileBaseDir();  
    if (file != null && file.exists() && file.isDirectory()) {  
        for (File item : file.listFiles()) {  
            item.delete();  
        }  
        file.delete();  
    }         
    deleteDatabase("webview.db");  
    deleteDatabase("webview.db-shm");  
    deleteDatabase("webview.db-wal");  
    deleteDatabase("webviewCache.db");  
    deleteDatabase("webviewCache.db-shm");  
    deleteDatabase("webviewCache.db-wal");  
    //清除数据缓存
    clearCacheFolder(getFilesDir(),System.currentTimeMillis());
    clearCacheFolder(getCacheDir(),System.currentTimeMillis());
    //2.2版本才有将应用缓存转移到sd卡的功能
    if(isMethodsCompat(android.os.Build.VERSION_CODES.FROYO)){
        clearCacheFolder(MethodsCompat.getExternalCacheDir(this),System.currentTimeMillis());
    }
    //清除编辑器保存的临时内容
    Properties props = getProperties();
    for(Object key : props.keySet()) {
        String _key = key.toString();
        if(_key.startsWith("temp"))
            removeProperty(_key);
    }
}