一键清理应用数据或者清除应用缓存的方法

/**

* 清除应用缓存的用户数据，同时停止所有服务和Alarm定时task
* String cmd = "pm clear " + packageName;
* String cmd = "pm clear " + packageName + " HERE";
* Runtime.getRuntime().exec(cmd)
* @param packageName
* @return
*/
public static Process clearAppUserData(String packageName) {
Process p = execRuntimeProcess("pm clear " + packageName);
if (p == null) {
LogTag.log("Clear app data packageName:" + packageName
+ ", FAILED !");
} else {
LogTag.log("Clear app data packageName:" + packageName
+ ", SUCCESS !");
}
return p;
}


public static Process execRuntimeProcess(String commond) {
Process p = null;
try {
p = Runtime.getRuntime().exec(commond);
} catch (IOException e) {
LogTag.log("exec Runtime commond:" + commond + ", IOException" + e);
e.printStackTrace();
}
LogTag.log("exec Runtime commond:" + commond + ", Process:" + p);
return p;
}
}

/*  * 文 件 名:  DataCleanManager.java  * 描 述:  主要功能有清除内/外缓存，清除数据库，清除sharedPreference，清除files和清除自定义目录  */


import java.io.File;
import android.content.Context;
import android.os.Environment;


/** * 本应用数据清除管理器 */
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());
    }


    /** * 清除本应用所有数据库(/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 item : directory.listFiles()) {
                item.delete();
            }
        }
    }
}