* addActivity(Activity activity) //添加Activity到堆栈
* currentActivity() //获取当前Activity（堆栈中最后一个压入的
* finishActivity() //结束当前Activity（堆栈中最后一个压入的）
* finishActivity(Activity activity) //结束指定的Activity
* finishActivity(Class<?> cls) //结束指定类名的Activity
* finishAllActivity() //结束所有Activity
* Activity getActivity(String activityName) //根据ActivityName获取堆中Activity实例
* appExit(Context context) //退出应用程序

* String getChannelFromApk(Context context, String channelKey) //从apk中获取Meta-Data信息
* boolean isAppInstalled(Context context, String packageName) //判断某个应用是否已经安装
* uninstall(Context context, String packageName) //卸载一个app
* install(Context context, File uriFile) //安装一个apk文件

* Drawable bitmapToDrawable(Bitmap bitmap) //Bitmap转换为Drawable
* Bitmap drawableToBitmap(Drawable drawable) //Drawable转换为Bitmap
* String bitmapToString(Bitmap bitmap) //Bitmap转换为Base64 String
* Bitmap byteToBitmap(byte[] bytes) //byte[]转换为Bitmap
* byte[] bitmapToByte(Bitmap bitmap) //Bitmap转换为byte[]
* Bitmap scaleImage(Bitmap originBitmap, float scaleWidth, float scaleHeight) //
* ...

* boolean isPhone(Context context) //判断当前设备是否为手机
* sendSms(Context context, String phoneNumber, String content) //发送短信
* callDial(Context context, String phoneNumber) //跳转至拨号界面
* callPhone(Context context, String phoneNumber) //拨打电话 *request android.permission.CALL_PHONE* self check permission
* int getPhoneType(Context context) //返回移动终端类型
    1. PHONE_TYPE_NONE :0 手机制式未知
    2. PHONE_TYPE_GSM  :1 手机制式为GSM，移动和联通
    3. PHONE_TYPE_CDMA :2 手机制式为CDMA，电信
		4. PHONE_TYPE_SIP  :3
* goHome(Context context) //主动回到Home，后台运行
* boolean isActiveSoftInput(Context context) //判断输入法是否处于激活状态
* showInputSoftFromWindowMethod(Context context, View view) //显示键盘
* hideInputSoftFromWindowMethod(Context context, View view) //隐藏键盘
* int getTopBarHeight(Activity activity) //获取状态栏高度＋标题栏(ActionBar)高度 (注意，如果没有ActionBar，那么获取的高度将和上面的是一样的，只有状态栏的高度)
* int getNavigationBarHeight(Context context) //获取navigationbar高度
* int getStatusBarHeight(Context context) //获取statusbar高度
* boolean isSoftKeyAvailable(Activity activity) //判断是否有软控制键（手机底部几个按钮）
* List<String> getAppPackageNameList(Context context) //获取非系统应用包名
* copyToClipBoard(Context context, String content) //复制到剪切板
* DisplayMetrics getScreenPix(Activity activity) //获取手机大小（分辨率）
* vibrate(Context context, long duration) //震动 request android.Manifest.permission#VIBRATE
* String getUUID(Context context) //获取UUID
* String getMac(Context context) //获取MAC地址 *request android.permission.ACCESS_WIFI_STATE*
* String getIMEI(Context context) //获取IMEI *request android.permission.READ_PHONE_STATE*
* boolean isProcessRunning(Context context, String processName) //进程是否运行
* boolean isServiceRunning(Context context, String className) //服务是否运行
* String getLocalIPAddress() //获取本机IP地址

* boolean isAvailable() //判断sdCard是否可用
* String getSdCardPath()//获取sdcard路径 e.g.:/storage/emulated/0/
* boolean isWritable() //判断sdcard是否可写
* Map<String, File> getAllStorageLocations() //获取所有存储路径 [e.g.:{sdCard=/mnt/sdcard}]

* readFile(String, String) read file
* readFileToList(String, String) read file to string list
* writeFile(String, String, boolean) write file from String
* writeFile(String, String) write file from String
* writeFile(String, List, boolean) write file from String List
* writeFile(String, List) write file from String List
* writeFile(String, InputStream) write file
* writeFile(String, InputStream, boolean) write file
* writeFile(File, InputStream) write file
* writeFile(File, InputStream, boolean) write file

* moveFile(File, File)
* moveFile(String, String)
* copyFile(String, String)
* getFileExtension(String)
* getFileName(String)
* getFileNameWithoutExtension(String)
* getFileSize(String)
* deleteFile(String)
* isFileExist(String)
* isFolderExist(String)
* makeFolders(String)
* makeDirs(String)
*
* long getFileSize(String path)
* String getUrlFileName(String url)
* String getUrlFileBaseName(String url)
* String getUrlFileExtension(String url)
* String getFileBaseName(String filename)
* String showFileSize(long size)
* boolean createIfNoExists(String path)
* long getFileSizes(File f) throws Exception

* int getVersionCode(Context context)
* String getVersionName(Context context)
* String getMetaData(Context context, String metaKey)
* String getChannel(Context context, String channelKey)

* int getNetworkType(Context context) //判断手机连接的网络类型(wifi,2G,3G,4G) 
    1. 联通的3G为UMTS或HSDPA，
    2. 移动和联通的2G为GPRS或EGDE，
    3. 电信的2G为CDMA，
    4. 电信的3G为EVDO

* String getPackageName(Context context)
* PackageInfo getPackageInfo(Context context, String packageName)
* String getJarSignature(String filePath) throws Exception
* byte[] getPKBytes(PublicKey pk) //根据公钥获取key
* int hashCode(String str) //计算签名时的hashcode算法
* String getInstalledPackageSignature(Context context, String packageName) //通过包名读取已安装APP数字签名
* Resources getAPKResources(Context context, String apkPath) //获取指定路径的apk的资源

* int getLayoutId(Context context, String resName) //获取 layout 布局文件
* int getStringId(Context context, String resName) //获取 string 值
* int getDrawableId(Context context, String resName) //获取 drawable
* int getMipmapId(Context context, String resName) //获取 mipmap
* int getStyleId(Context context, String resName) //获取 style
* Object getStyleableId(Context context, String resName) //获取 styleable
* int getAnimId(Context context, String resName) //获取 anim
* int getId(Context context, String resName) //获取 id
* int getColorId(Context context, String resName) //color

* boolean checkRootPermission()
* CommandResult execCommand(String command, boolean isRoot)
* CommandResult execCommand(String command, boolean isRoot, boolean isNeedResultMessage)
* CommandResult execCommand(List<String> commands, boolean isRoot)
* ......

* File getCacheDirectory(Context context) //[e.g.:/storage/emulated/0/Android/data/com.cjs.androidutils/cache]
* File getExternalCacheDir(Context context)
* File getIndividualCacheDirectory(Context context)
* File getIndividualCacheDirectory(Context context, String cacheDir) //[e.g.:/storage/emulated/0/Android/data/com.cjs.androidutils/cache/image]
* File getOwnCacheDirectory(Context context, String cacheDir) //[e.g:/data/data/com.cjs.androidutils/cache]
* boolean existSDCard()
* long getAvailaleSize() //获取可用空间大小
* long getAllSize() //获取SD大小
* String getExternalStorageDirectory() //多个SD卡时 取外置SD卡

* boolean isBlank(String str)
* boolean isEmpty(String str)
* int length(CharSequence str)
* String nullStrToEmpty(Object str)
* String getHrefInnerHtml(String href)
* String htmlEscapeCharsToString(String source)