/** * 数据删除工具类 * @author FireAnt(http://my.oschina.net/LittleDY) * @version 创建时间:2014年10月27日 上午10:18:22 * */ public class DataCleanManager { /** * 清除本应用内部缓存 * (/data/data/com.xxx.xxx/cache) * @param context */ public static void cleanInternalCache(Context context) { deleteFilesByDirectory(context.getCacheDir()); deleteFilesByDirectory(context.getFilesDir()); } /** * 清楚本应用所有数据库 * (/data/data/com.xxx.xxx/databases) * @param context */ public static void cleanDatabases(Context context) { deleteFilesByDirectory(new File("/data/data/" + context.getPackageName() + "/databases")); } /** * 清除本应用SharedPreference * (/data/data/com.xxx.xxx/shared_prefs) * @param context */ public static void cleanSharedPreference(Context context) { deleteFilesByDirectory(new File("/data/data/" + context.getPackageName() + "/shared_prefs")); } /** * 按名字清除本应用数据库 * @param context * @param dbName */ public static void cleanDatabaseByName(Context context, String dbName) { context.deleteDatabase(dbName); } /** * 清除/data/data/com.xxx.xxx/files下的内容 * @param context */ public static void cleanFiles(Context context) { deleteFilesByDirectory(context.getFilesDir()); } /** * 清除外部cache下的内容(/mnt/sdcard/android/data/com.xxx.xxx/cache) * @param context */ public static void cleanExternalCache(Context context) { if (Environment.getExternalStorageState().equals( Environment.MEDIA_MOUNTED)) { deleteFilesByDirectory(context.getExternalCacheDir()); } } /** * 清除自定义路径下的文件,使用需小心,请不要误删。而且只支持目录下的文件删除 * @param filePath */ public static void cleanCustomCache(String filePath) { deleteFilesByDirectory(new File(filePath)); } /** * 清除自定义路径下的文件,使用需小心,请不要误删。而且只支持目录下的文件删除 * @param filePath */ public static void cleanCustomCache(File file) { deleteFilesByDirectory(file); } /** * 清除本应用所有的数据 * @param context * @param filepath */ public static void cleanApplicationData(Context context, String... filepath) { cleanInternalCache(context); cleanExternalCache(context); cleanDatabases(context); cleanSharedPreference(context); cleanFiles(context); for (String filePath : filepath) { cleanCustomCache(filePath); } } /** * 删除方法 这里只会删除某个文件夹下的文件,如果传入的directory是个文件,将不做处理 * @param directory */ private static void deleteFilesByDirectory(File directory) { if (directory != null && directory.exists() && directory.isDirectory()) { for (File child : directory.listFiles()) { if (child.isDirectory()) { deleteFilesByDirectory(child); } child.delete(); } } } }
/** * Android各版本的兼容方法 * @author liux (http://my.oschina.net/liux) * @version 1.0 * @created 2012-8-6 */ public class MethodsCompat { @TargetApi(5) public static void overridePendingTransition(Activity activity, int enter_anim, int exit_anim) { activity.overridePendingTransition(enter_anim, exit_anim); } @TargetApi(7) public static Bitmap getThumbnail(ContentResolver cr, long origId, int kind, Options options) { return MediaStore.Images.Thumbnails.getThumbnail(cr,origId,kind, options); } @TargetApi(8) public static File getExternalCacheDir(Context context) { // // return context.getExternalCacheDir(); API level 8 // // // e.g. "<sdcard>/Android/data/<package_name>/cache/" // final File extCacheDir = new File(Environment.getExternalStorageDirectory(), // "/Android/data/" + context.getApplicationInfo().packageName + "/cache/"); // extCacheDir.mkdirs(); // return extCacheDir; return context.getExternalCacheDir(); } @TargetApi(11) public static void recreate(Activity activity) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { activity.recreate(); } } @TargetApi(11) public static void setLayerType(View view, int layerType, Paint paint) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) { view.setLayerType(layerType, paint); } } @TargetApi(14) public static void setUiOptions(Window window, int uiOptions) { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) { window.setUiOptions(uiOptions); } } }
public void setProperties(Properties ps) { AppConfig.getAppConfig(this).set(ps); } public Properties getProperties() { return AppConfig.getAppConfig(this).get(); } public void setProperty(String key, String value) { AppConfig.getAppConfig(this).set(key, value); }
/** * 清除app缓存 */ public void clearAppCache() { DataCleanManager.cleanDatabases(this); // 清除数据缓存 DataCleanManager.cleanInternalCache(this); // 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)) { DataCleanManager.cleanCustomCache(MethodsCompat .getExternalCacheDir(this)); } // 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); } new KJBitmap().cleanCache(); } /** * 判断当前版本是否兼容目标版本的方法 * * @param VersionCode * @return */ public static boolean isMethodsCompat(int VersionCode) { int currentVersion = android.os.Build.VERSION.SDK_INT; return currentVersion >= VersionCode; }
/** * 获取cookie时传AppConfig.CONF_COOKIE * * @param key * @return */ public String getProperty(String key) { String res = AppConfig.getAppConfig(this).get(key); return res; } public void removeProperty(String... key) { AppConfig.getAppConfig(this).remove(key); }
public static AppConfig getAppConfig(Context context) { if (appConfig == null) { appConfig = new AppConfig(); appConfig.mContext = context; } return appConfig; } /** * 获取Preference设置 */ public static SharedPreferences getSharedPreferences(Context context) { return PreferenceManager.getDefaultSharedPreferences(context); }