总结的常用方法
public class Toolkit { /** * * Role:Telecom service providers获取手机服务商信息 <BR> * * 需要加入权限<uses-permission * android:name="android.permission.READ_PHONE_STATE"/> <BR> * Date:2012-3-12 <BR> * * @author CODYY)allen */ public static String getProvidersName(Context context) { String ProvidersName = "nosim"; try { // 返回唯一的用户ID;就是这张卡的编号神马的 TelephonyManager telephonyManager = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); String IMSI = telephonyManager.getSubscriberId(); // IMSI号前面3位460是国家,紧接着后面2位00 02是中国移动,01是中国联通,03是中国电信。 if (IMSI.startsWith("46000") || IMSI.startsWith("46002")) ProvidersName = "中国移动"; else if (IMSI.startsWith("46001")) ProvidersName = "中国联通"; else if (IMSI.startsWith("46003")) ProvidersName = "中国电信"; } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); return ProvidersName; } return ProvidersName; } /** * 获取手机号 * * @param context * @return */ public static String getPhone(Context context) { TelephonyManager phoneMgr = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); return phoneMgr.getLine1Number(); } /** * 获取手机型号 * * @return */ public static String getPhoneType() { return Build.MODEL; } /** * 获取sdk版本 * * @return */ public static String getSDKVersion() { return Build.VERSION.SDK; } /** * 获取版本号 * * @return */ public static String getVersion() { return Build.VERSION.RELEASE; } public static class TelephonyManagerInfo { /** * 电话状态: 1.tm.CALL_STATE_IDLE=0 无活动 * * 2.tm.CALL_STATE_RINGING=1 响铃 * * 3.tm.CALL_STATE_OFFHOOK=2 摘机 */ public static int CallState; /** * * 电话方位:(需要权限:android.permission.ACCESS_COARSE_LOCATION) */ public static String CellLocation; /** * * 唯一的设备ID: * * GSM手机的 IMEI 和 CDMA手机的 MEID. * * Return null if device ID is not available. */ public static String DeviceId; /** * * 设备的软件版本号: * * 例如:the IMEI/SV(software version) for GSM phones. * * Return null if the software version is not available. */ public static String DeviceSoftwareVersion; /** * * 手机号: * * GSM手机的 MSISDN. * * Return null if it is unavailable. */ public static String Line1Number; /** * * 附近的电话的信息: * * 类型:List<NeighboringCellInfo> * * 需要权限:android.Manifest.permission#ACCESS_COARSE_UPDATES */ public static List<NeighboringCellInfo> NeighboringCellInfo;// List<NeighboringCellInfo> /** * * 获取ISO标准的国家码,即国际长途区号。 * * 注意:仅当用户已在网络注册后有效。 * * 在CDMA网络中结果也许不可靠。 */ public static String NetworkCountryIso; /** * * MCC+MNC(mobile country code + mobile network code) * * 注意:仅当用户已在网络注册时有效。 * * 在CDMA网络中结果也许不可靠。 */ public static String NetworkOperator; /** * * 按照字母次序的current registered operator(当前已注册的用户)的名字 * * 注意:仅当用户已在网络注册时有效。 * * 在CDMA网络中结果也许不可靠。 */ public static String NetworkOperatorName;// String /** * 当前使用的网络类型: * * 例如: NETWORK_TYPE_UNKNOWN 网络类型未知 0 NETWORK_TYPE_GPRS GPRS网络 1 * * NETWORK_TYPE_EDGE EDGE网络 2 * * NETWORK_TYPE_UMTS UMTS网络 3 * * NETWORK_TYPE_HSDPA HSDPA网络 8 * * NETWORK_TYPE_HSUPA HSUPA网络 9 * * NETWORK_TYPE_HSPA HSPA网络 10 * * NETWORK_TYPE_CDMA CDMA网络,IS95A 或 IS95B. 4 * * NETWORK_TYPE_EVDO_0 EVDO网络, revision 0. 5 * * NETWORK_TYPE_EVDO_A EVDO网络, revision A. 6 * * NETWORK_TYPE_1xRTT 1xRTT网络 7 */ public static int NetworkType;// int /** * * 手机类型: * * 例如: PHONE_TYPE_NONE 无信号 * * PHONE_TYPE_GSM GSM信号 * * PHONE_TYPE_CDMA CDMA信号 */ public static int PhoneType;// int /** * * Returns the ISO country code equivalent for the SIM provider's * country code. * * 获取ISO国家码,相当于提供SIM卡的国家码。 */ public static String SimCountryIso;// String /** * * Returns the MCC+MNC (mobile country code + mobile network code) of * the provider of the SIM. 5 or 6 decimal digits. * * 获取SIM卡提供的移动国家码和移动网络码.5或6位的十进制数字. * * SIM卡的状态必须是 SIM_STATE_READY(使用getSimState()判断). */ public static String SimOperator;// String /** * * 服务商名称: * * 例如:中国移动、联通 * * SIM卡的状态必须是 SIM_STATE_READY(使用getSimState()判断). */ public static String SimOperatorName;// String /** * * SIM卡的序列号: * * 需要权限:READ_PHONE_STATE */ public static String SimSerialNumber;// String /** * * SIM的状态信息: * * SIM_STATE_UNKNOWN 未知状态 0 * * SIM_STATE_ABSENT 没插卡 1 * * SIM_STATE_PIN_REQUIRED 锁定状态,需要用户的PIN码解锁 2 * * SIM_STATE_PUK_REQUIRED 锁定状态,需要用户的PUK码解锁 3 * * SIM_STATE_NETWORK_LOCKED 锁定状态,需要网络的PIN码解锁 4 * * SIM_STATE_READY 就绪状态 5 */ public static int SimState;// int /** * * 唯一的用户ID: * * 例如:IMSI(国际移动用户识别码) for a GSM phone. * * 需要权限:READ_PHONE_STATE */ public static String SubscriberId;// String /** * * 取得和语音邮件相关的标签,即为识别符 * * 需要权限:READ_PHONE_STATE */ public static String VoiceMailAlphaTag;// String /** * * 获取语音邮件号码: * * 需要权限:READ_PHONE_STATE */ public static String VoiceMailNumber;// String /** * * ICC卡是否存在 */ public static boolean hasIccCard;// boolean /** * * 是否漫游: * * (在GSM用途下) */ public static boolean isNetworkRoaming; } /** * 获取手机唯一ID * * @param context * @return */ public static String getPhoneUniqueId(Context context) { TelephonyManager tm = (TelephonyManager) context .getSystemService(context.TELEPHONY_SERVICE); return tm.getDeviceId(); } /** * 获取手机信息实体 * * @param context * @return */ public static TelephonyManagerInfo getTelephonyInfo(Context context) { TelephonyManagerInfo info = new TelephonyManagerInfo(); TelephonyManager tm = (TelephonyManager) context .getSystemService(context.TELEPHONY_SERVICE); info.CallState = tm.getCallState(); info.CellLocation = tm.getCellLocation().toString(); info.DeviceId = tm.getDeviceId(); info.DeviceSoftwareVersion = tm.getDeviceSoftwareVersion(); info.hasIccCard = tm.hasIccCard(); info.isNetworkRoaming = tm.isNetworkRoaming(); info.Line1Number = tm.getLine1Number(); info.NeighboringCellInfo = tm.getNeighboringCellInfo(); info.NetworkCountryIso = tm.getNetworkCountryIso(); info.NetworkOperator = tm.getNetworkOperator(); info.NetworkOperatorName = tm.getNetworkOperatorName(); info.NetworkType = tm.getNetworkType(); info.PhoneType = tm.getPhoneType(); info.SimCountryIso = tm.getSimCountryIso(); info.SimOperator = tm.getSimOperator(); info.SimOperatorName = tm.getSimOperatorName(); info.SimSerialNumber = tm.getSimSerialNumber(); info.SimState = tm.getSimState(); info.SubscriberId = tm.getSubscriberId(); info.VoiceMailAlphaTag = tm.getVoiceMailAlphaTag(); info.VoiceMailNumber = tm.getVoiceMailNumber(); return info; } /** * 取得屏幕分辨率大小 * * @param context * Activity上下文 * @return第一个值为宽度 */ public static int[] getDisplayPixes(Activity context) { DisplayMetrics dm = new DisplayMetrics(); context.getWindowManager().getDefaultDisplay().getMetrics(dm); return new int[] { dm.widthPixels, dm.heightPixels }; } /** * 取得屏幕分辨宽度和高度 * * @param context * Activity上下文 * @return第一个值为宽度 */ public static int[] getDisplayWidthHeight(Activity context) { Display dis = context.getWindowManager().getDefaultDisplay(); return new int[] { dis.getWidth(), dis.getHeight() }; } /** * 检查是否有可用的网络 * * @param context * 上下文 * @return true:有网络 */ public static boolean isAvaliable(Context context) { if (isWiFiActive(context) || isNetworkAvailable(context)) // Toast.makeText(context, "有网络!", 300).show(); return true; else // Toast.makeText(context, "网络不正常!", 300).show(); return false; } /** 返回当前网速 */ public static long getNetworkSpeed() { // TODO Auto-generated method stub ProcessBuilder cmd; long readBytes = 0; BufferedReader rd = null; try { String[] args = { "/system/bin/cat", "/proc/net/dev" }; cmd = new ProcessBuilder(args); Process process = cmd.start(); rd = new BufferedReader(new InputStreamReader( process.getInputStream())); String line; int linecount = 0; while ((line = rd.readLine()) != null) { linecount++; if (line.contains("wlan0") || line.contains("eth0")) { // L.E("获取流量整条字符串",line); String[] delim = line.split(":"); if (delim.length >= 2) { String[] numbers = delim[1].trim().split(" ");// 提取数据 readBytes = Long.parseLong(numbers[0].trim());// break; } } } rd.close(); } catch (Exception ex) { ex.printStackTrace(); } finally { if (rd != null) { try { rd.close(); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } return readBytes; } /** * 检查wifi是否可用 * * @param inContext * @return */ public static boolean isWiFiActive(Context inContext) { WifiManager mWifiManager = (WifiManager) inContext .getSystemService(Context.WIFI_SERVICE); WifiInfo wifiInfo = mWifiManager.getConnectionInfo(); int ipAddress = wifiInfo == null ? 0 : wifiInfo.getIpAddress(); if (mWifiManager.isWifiEnabled() && ipAddress != 0) { System.out.println("**** WIFI is on"); return true; } else { System.out.println("**** WIFI is off"); return false; } } /** * 检查手机网络(非wifi)是否有用 * * @param context * @return */ public static boolean isNetworkAvailable(Context context) { ConnectivityManager connectivity = (ConnectivityManager) context .getSystemService(Context.CONNECTIVITY_SERVICE); if (connectivity == null) { return false; } else { NetworkInfo info = connectivity.getActiveNetworkInfo(); if (info == null) { return false; } else { if (info.isAvailable()) { return true; } } } return false; } /** * 判断是否为wifi的连接ip * * @return */ public static boolean isWifiConnected(Context context) { int ipAddress = getWifiIpInfo(context); if (ipAddress > 0) return true; else return false; } private static int getWifiIpInfo(Context context) { // 获取wifi服务 WifiManager wifiManager = (WifiManager) context .getSystemService(Context.WIFI_SERVICE); // 判断wifi是否开启 if (!wifiManager.isWifiEnabled()) { wifiManager.setWifiEnabled(true); } WifiInfo wifiInfo = wifiManager.getConnectionInfo(); // return String.valueOf(wifiInfo.getIpAddress()); int ipAddress = wifiInfo.getIpAddress(); return ipAddress; } /** * 获取wifi ip * * @return */ public static String getWifiAddress(Context context) { int ipAddress = getWifiIpInfo(context); return intToIp(ipAddress); } private static String intToIp(int i) { return (i & 0xFF) + "." + ((i >> 8) & 0xFF) + "." + ((i >> 16) & 0xFF) + "." + (i >> 24 & 0xFF); } /** * 获取手机mac地址<br/> * 错误返回12个0 */ public static String getMacAddress(Context context) { // 获取mac地址: String macAddress = "000000000000"; try { WifiManager wifiMgr = (WifiManager) context .getSystemService(Context.WIFI_SERVICE); WifiInfo info = (null == wifiMgr ? null : wifiMgr .getConnectionInfo()); if (null != info) { if (!TextUtils.isEmpty(info.getMacAddress())) macAddress = info.getMacAddress().replace(":", ""); else return macAddress; } } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); return macAddress; } return macAddress; } /** * 获取手机ip(此方法在android中使用获取3G网络ip地址) * * @return * @throws SocketException * @throws UnknownHostException */ public static String getLocalIpAddress() throws SocketException { for (Enumeration<NetworkInterface> en = NetworkInterface .getNetworkInterfaces(); en.hasMoreElements();) { NetworkInterface intf = en.nextElement(); for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr .hasMoreElements();) { InetAddress inetAddress = enumIpAddr.nextElement(); if (!inetAddress.isLoopbackAddress()) { return inetAddress.getHostAddress().toString(); } } } return null; } /** * 获取本机ip(此方法仅在java程序中) * * @return * @throws UnknownHostException */ public static String getHostAddress() throws UnknownHostException { InetAddress address = null; address = InetAddress.getLocalHost(); return address.getHostAddress(); } /** * 读取文本,一次读取多个字节,默认为1024 * * @param file * 文件名称(在sd卡下面的data/data/应用程序包下面) * @param context * 上下文 * @param encode * 编码方式 * @return * @throws IOException */ public static String readFromFileByChar(String file, Context context, String encode) throws IOException { FileInputStream fis = context.openFileInput(file); BufferedReader br = new BufferedReader(new InputStreamReader(fis, encode)); // Log.i(TAG, br.readLine()); int index = 0; char[] buffer = new char[1024];// 一次性读取1024个字符 StringBuffer sb = new StringBuffer(); while ((index = br.read(buffer)) != -1) {// 一次读多个字符 // 同样屏蔽掉r不显示 if ((index == buffer.length) && (buffer[buffer.length - 1] != 'r')) { sb.append(buffer); } else { for (int i = 0; i < index; i++) { if (buffer[i] == 'r') { continue;// 停止执行当前的迭代,然后退回循环开始处 } else { sb.append(buffer[i]); } } } } br.close(); fis.close(); return sb.toString(); // return br.readLine(); } /** * 按行读取文本 * * @param file * 文件名 * @param context * 上下文 * @param encode * 编码方式 * @return * @throws IOException */ public static String readFromFileByLine(String file, Context context, String encode) throws IOException { FileInputStream fis = context.openFileInput(file); BufferedReader br = new BufferedReader(new InputStreamReader(fis, encode)); // Log.i(TAG, br.readLine()); StringBuffer sb = new StringBuffer(); String temp; while ((temp = br.readLine()) != null) {// 一次读一行 sb.append(temp); } br.close(); fis.close(); return sb.toString(); // return br.readLine(); } /** * 一次将string内容写入到文件 * * @param context * 上下文 * @param file * 文件名 * @param content * 写入的内容 * @throws IOException */ public static void writeToFile(Context context, String file, String content) throws IOException { FileOutputStream fos = context.openFileOutput(file, context.MODE_PRIVATE); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(fos)); bw.write(content); bw.flush(); bw.close(); fos.close(); } /** * 将object序列化到filename文件中 * * @param fileName * 文件名,包括路径 * @param object * 序列化的对象 */ public static boolean writeFileByObject(String fileName, Object object) { try { FileOutputStream fos = new FileOutputStream(fileName); ObjectOutputStream oos = new ObjectOutputStream(fos); oos.writeObject(object); oos.flush(); oos.close(); fos.close(); return true; } catch (Exception e) { e.printStackTrace(); return false; } } /** * 反序列化 * * @param fileName * 文件名,包括详细路径 * @return Object类型的对象 */ public static Object readFileByObject(String fileName) { try { FileInputStream fis = new FileInputStream(fileName); ObjectInputStream ois = new ObjectInputStream(fis); Object o = ois.readObject(); ois.close(); fis.close(); return o; } catch (Exception e) { return null; } } /** * 按照指定的宽度和高度压缩图片(这是android 2.2以上才有的方法) * * @param bm * @param w * @param h * @return */ public static Bitmap compressBitmap(Bitmap bm, int w, int h) { return ThumbnailUtils.extractThumbnail(bm, w, h); } /** * 等比例压缩图片 * * @param is * 图片输入流 * @param scalePix * 压缩的尺寸 * @return */ public static Bitmap compressBitmapByscale(InputStream is, int scalePix) { BitmapFactory.Options opt = new Options(); opt.inSampleSize = scalePix; return BitmapFactory.decodeStream(is, null, opt); } /** * 等比例压缩图片 * * @param data * byte[]数组 * * @param ratio * 压缩的尺寸 * @return */ public static Bitmap compressBitmap(byte[] data, int ratio) { BitmapFactory.Options opts = new Options(); opts.inJustDecodeBounds = false; opts.inSampleSize = ratio; // 得到新的图片 return BitmapFactory.decodeByteArray(data, 0, data.length, opts); } /** * 自动压缩图片(根据能够压缩的比例) * * @param map * @return */ public static Bitmap compressBitmapAuto(Bitmap map, int scalePix) { BitmapFactory.Options opts = new BitmapFactory.Options(); ByteArrayOutputStream os = new ByteArrayOutputStream(); byte[] data = os.toByteArray(); opts.inJustDecodeBounds = true; map.compress(CompressFormat.PNG, 100, os); Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); opts.inJustDecodeBounds = false; int be = (int) (opts.outHeight / (float) scalePix); if (be <= 0) be = 1; opts.inSampleSize = be; bitmap = BitmapFactory.decodeByteArray(data, 0, data.length, opts); return bitmap; } /** 根据屏幕大小适屏压缩 --2012/11/13-- */ public static Bitmap compressBitmapFixDisplay(Activity context, byte[] data) { BitmapFactory.Options opts = new Options(); opts.inJustDecodeBounds = true;// 设置查看图片的大小,不分配内存 BitmapFactory.decodeByteArray(data, 0, data.length, opts); int height = context.getWindowManager().getDefaultDisplay().getHeight();// 获取屏幕大小 int width = context.getWindowManager().getDefaultDisplay().getWidth(); int hratio = (int) Math.ceil(opts.outHeight / (float) height);// 图片的高度比上屏幕的高度 int wratio = (int) Math.ceil(opts.outWidth / (float) width); if (hratio > 1 || wratio > 1) {// 如果图片超出屏幕范围 if (hratio > wratio)// 如果高度大于宽度 opts.inSampleSize = hratio; else opts.inSampleSize = wratio; } opts.inJustDecodeBounds = false;// 设置分配图片的大小 Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length, opts); return bitmap; } /** * 压缩图片 * * @param bm * 所要转换的bitmap * @param newWidth新的宽 * @param newHeight新的高 * @return 指定宽高的bitmap */ public static Bitmap zoomImg(Bitmap bm, int newWidth, int newHeight) { // 获得图片的宽高 int width = bm.getWidth(); int height = bm.getHeight(); // 计算缩放比例 float scaleWidth = ((float) newWidth) / width; float scaleHeight = ((float) newHeight) / height; // 取得想要缩放的matrix参数 Matrix matrix = new Matrix(); matrix.postScale(scaleWidth, scaleHeight); // 得到新的图片 Bitmap newbm = Bitmap.createBitmap(bm, 0, 0, width, height, matrix, true); if (!bm.isRecycled())// 回收bitmap bm.recycle(); return newbm; } /** * 动态设置ImageView的布局宽度和高度 * * @param iv * ImageView对象 * @param width * 要设置的宽度(0:充满父容器) * @param height * 要设置的高度(0:充满父容器) */ public static void setImagePixes(ImageView iv, int width, int height) { ViewGroup.LayoutParams params = iv.getLayoutParams(); if (width == 0 && height != 0)// 如果宽度为0 { params.height = height; params.width = ViewGroup.LayoutParams.FILL_PARENT; } else if (height == 0 && width != 0) {// 高度为 0 params.height = ViewGroup.LayoutParams.FILL_PARENT; params.width = width; } else if (width == 0 && height == 0) { params.height = ViewGroup.LayoutParams.FILL_PARENT; params.width = ViewGroup.LayoutParams.FILL_PARENT; } else { params.height = height; params.width = width; } iv.setLayoutParams(params); } /** activity转换为view */ @SuppressWarnings("deprecation") public static View activityToView(Context parent, Intent intent) { LocalActivityManager mLocalActivityManager = new LocalActivityManager( (Activity) parent, true); final Window w = mLocalActivityManager.startActivity("TagName", intent); final View wd = w != null ? w.getDecorView() : null; if (wd != null) { wd.setVisibility(View.VISIBLE); wd.setFocusableInTouchMode(true); ((ViewGroup) wd) .setDescendantFocusability(ViewGroup.FOCUS_AFTER_DESCENDANTS); } return wd; } /*** * 动态设置listview的高度 * * @param listView */ public static void setListViewHeightBasedOnChildren(ListView listView) { ListAdapter listAdapter = listView.getAdapter(); if (listAdapter == null) { return; } int totalHeight = 0; for (int i = 0; i < listAdapter.getCount(); i++) { View listItem = listAdapter.getView(i, null, listView); listItem.measure(0, 0); totalHeight += listItem.getMeasuredHeight(); } ViewGroup.LayoutParams params = listView.getLayoutParams(); params.height = totalHeight + (listView.getDividerHeight() * (listAdapter.getCount() - 1)); // params.height += 5;// if without this statement,the listview will be // a // little short // listView.getDividerHeight()获取子项间分隔符占用的高度 // params.height最后得到整个ListView完整显示需要的高度 listView.setLayoutParams(params); } /** * 将Drawable转化为Bitmap * * @param drawable * @return */ public static Bitmap drawableToBitmap(Drawable drawable) { int width = drawable.getIntrinsicWidth(); int height = drawable.getIntrinsicHeight(); Bitmap bitmap = Bitmap.createBitmap(width, height, drawable .getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888 : Bitmap.Config.RGB_565); Canvas canvas = new Canvas(bitmap); drawable.setBounds(0, 0, width, height); drawable.draw(canvas); return bitmap; } /** * 将图片的四角圆化 * * @param bitmap * @param radius * 圆角弧度,数值越大弧度越大 * @return */ public static Bitmap getRoundedCornerBitmap(Bitmap bitmap, int radius) { Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Config.ARGB_8888); // 得到画布 Canvas canvas = new Canvas(output); // 将画布的四角圆化 final int color = Color.RED; final Paint paint = new Paint(); // 得到与图像相同大小的区域 由构造的四个值决定区域的位置以及大小 final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight()); final RectF rectF = new RectF(rect); // 值越大角度越明显 final float roundPx = radius; paint.setAntiAlias(true); canvas.drawARGB(0, 0, 0, 0); paint.setColor(color); // drawRoundRect的第2,3个参数一样则画的是正圆的一角,如果数值不同则是椭圆的一角 canvas.drawRoundRect(rectF, roundPx, roundPx, paint); paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN)); // 设置形式为背景 canvas.drawBitmap(bitmap, rect, rect, paint); return output; } /** * 获得带倒影的图片方法 * * @param bitmap * @return */ public static Bitmap createReflectionImageWithOrigin(Bitmap bitmap) { final int reflectionGap = 4; int width = bitmap.getWidth(); int height = bitmap.getHeight(); Matrix matrix = new Matrix(); matrix.preScale(1, -1); Bitmap reflectionImage = Bitmap.createBitmap(bitmap, 0, height / 2, width, height / 2, matrix, false); Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height / 2), Config.ARGB_8888); Canvas canvas = new Canvas(bitmapWithReflection); canvas.drawBitmap(bitmap, 0, 0, null); Paint deafalutPaint = new Paint(); canvas.drawRect(0, height, width, height + reflectionGap, deafalutPaint); canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null); Paint paint = new Paint(); LinearGradient shader = new LinearGradient(0, bitmap.getHeight(), 0, bitmapWithReflection.getHeight() + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP); paint.setShader(shader);// 设置阴影 // Set the Transfer mode to be porter duff and destination in paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN)); // Draw a rectangle using the paint with our linear gradient canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint); return bitmapWithReflection; } /** * 向preferences写入数据 * * @param context * 上下文 * @param key * 键 * @param value * 写入的内容 */ public static void writeToPreferences(Context context, String filename, String key, String value) { // 得到preferences对象 SharedPreferences.Editor editor = context.getSharedPreferences( filename, android.content.Context.MODE_PRIVATE).edit(); // editor = preferences.edit(); editor.putString(key, value); editor.commit(); } /** * 向preference中读取数据 data/data/package/shared_prefs * * @param context * 上下文 * @param filename * 文件名 * @param key * 键 * @param defaultValue * 默认值 * @return */ public static String readFromPreferences(Context context, String filename, String key, String defaultValue) { // 得到preferences对象 SharedPreferences preferences = context.getSharedPreferences(filename, android.content.Context.MODE_PRIVATE | android.content.Context.MODE_APPEND); return preferences.getString(key, defaultValue); } /** * 加载properties文件 * * @param context * @param file * @return * @throws Exception */ public static Properties loadProperties(Context context, String file, String encode) throws Exception { Properties properties = new Properties(); FileInputStream s = new FileInputStream(file); properties.load(s); return properties; } /** * 保存到properties文件中 * * @param context * @param file * @param properties * @throws Exception */ public static void saveProperties(Context context, String file, String encode, Properties properties) throws Exception { FileOutputStream s = new FileOutputStream(file, false); properties.store(s, ""); } // --------------------------------------------------------------------------------------------------- /** * 从网络上下载 * * @param url * @return * @throws IOException */ public static Bitmap getBitMapFromUrl(String url) throws IOException { Bitmap bitmap = null; URL u = null; HttpURLConnection conn = null; InputStream is = null; u = new URL(url); conn = (HttpURLConnection) u.openConnection(); is = conn.getInputStream(); bitmap = BitmapFactory.decodeStream(is); return bitmap; } /** * 异步加载网络图片 * * @param src图片路径 * @param iv * imageview * @param callback回调接口 */ public static void loadImage(final String src, final ImageView iv, final ImageCallBack callback) { final Handler handler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); callback.setImageBitmap((Bitmap) msg.obj, iv, src); } }; new Thread(new Runnable() { @Override public void run() { Bitmap bitmap = null; try { bitmap = getBitMapFromUrl(src); } catch (IOException e) { e.printStackTrace(); } if (bitmap != null) { Message msg = handler.obtainMessage(0, bitmap); handler.sendMessage(msg); } } }).start(); } /** * 获取网络byte流的图片 * * @param src * @return * @throws Exception */ public static byte[] getImageBytes(String src) throws Exception { URL url = new URL(src); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); conn.setDoInput(true); conn.setRequestMethod("GET"); conn.setConnectTimeout(5000);// 设置延迟时间为5s InputStream is = conn.getInputStream(); ByteArrayOutputStream bos = new ByteArrayOutputStream(); int len = 0; byte[] buffer = new byte[1024]; while ((len = is.read(buffer)) != -1) { bos.write(buffer, 0, len); } return bos.toByteArray(); } /** * 压缩图片 * * @param bm * 所要转换的bitmap * @param newWidth新的宽 * @param newHeight新的高 * @return 指定宽高的bitmap */ public static Bitmap zoomBitmap(byte[] data, int newWidth, int newHeight) { BitmapFactory.Options opts = new Options(); opts.inJustDecodeBounds = false; opts.inSampleSize = 10; // 得到新的图片 Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length, opts); // 获得图片的宽高 int width = bitmap.getWidth(); int height = bitmap.getHeight(); // 计算缩放比例 float scaleWidth = ((float) newWidth) / width; float scaleHeight = ((float) newHeight) / height; // 取得想要缩放的matrix参数 Matrix matrix = new Matrix(); matrix.postScale(scaleWidth, scaleHeight); Bitmap newbm = Bitmap.createBitmap(bitmap, 0, 0, width, height, matrix, true); if (!bitmap.isRecycled())// 回收bitmap bitmap.recycle(); return newbm; } /** * 异步加载网络图片 * * @param src * url地址 * @param iv * 传入的iamgeView * @param callback * 回调函数 */ public static void AsycloadImage(final String src, final ImageView iv, final ImageCallBack callback) { final Handler handler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); callback.setImageBitmap((Bitmap) msg.obj, iv, src); } }; new Thread(new Runnable() { @Override public void run() { byte[] data = null; Bitmap bitmap = null; try { data = getImageBytes(src); bitmap = compressBitmap(data, 3); } catch (Exception e) { e.printStackTrace(); } if (bitmap != null) { Message msg = handler.obtainMessage(0, bitmap); handler.sendMessage(msg); } } }).start(); } /** * 异步加载图片 * * @param url * 图片路径 * @param iv * ImageView * @param imgCache * 缓存 * @param callback * 回调接口 */ public static void AyncLoadImageFromUrl(final String url, final ImageView iv, final Map<String, SoftReference<Bitmap>> imgCache, final ImageCallBack callback) { if (imgCache.containsKey(url))// 如果缓存中存在 { iv.setImageBitmap(imgCache.get(url).get()); return; } final Handler handler = new Handler() { public void handleMessage(Message msg) { super.handleMessage(msg); callback.setImageBitmap((Bitmap) msg.obj, iv, url); } }; new Thread(new Runnable() { @Override public void run() { byte[] data = null; Bitmap bitmap = null; try { data = getImageBytes(url); bitmap = compressBitmap(data, 3); } catch (Exception e) { e.printStackTrace(); } if (bitmap != null) { // 保存到缓存中 // 将图片保存到缓存中 imgCache.put(url, new SoftReference<Bitmap>(bitmap)); Message msg = handler.obtainMessage(0, bitmap); handler.sendMessage(msg); } } }).start(); } /** * 保存图片到sdcard,并且返回图片名称,带后缀名 * * @param context * @param fileName * 图片目录名称 * @param photo * 图片路径 * @throws IOException */ public static String saveImgToSdcard(Context context, String fileName, String photo) throws IOException { String url = photo; // 获取图片名称,包含后缀 String imgName = url.substring(url.lastIndexOf("/") + 1, url.length()); URL Url = new URL(url); HttpURLConnection conn = (HttpURLConnection) Url.openConnection(); InputStream is = conn.getInputStream(); String saveUrl = context.getFilesDir() + "/" + fileName + "/" + imgName; File file = new File(saveUrl); // 如果图片文件存在 if (file.exists()) return imgName; FileOutputStream fos = new FileOutputStream(file); byte[] data = new byte[512]; int len = 0; while ((len = is.read(data)) != -1) { fos.write(data, 0, len); } fos.flush(); fos.close(); return imgName; } /** * 保存图片到指定的目录 * * @param context * 上下文 * @param filedir * 图片目录名称 * @param name * 图片名称 * @param bitmap * 图片 * @throws Exception */ public static void saveBitmapToSdcard(Context context, String filedir, String name, Bitmap bitmap) throws Exception { String path = context.getFilesDir() + File.separator + filedir + File.separator; File file = new File(path); if (!file.exists()) { file.mkdir(); } file = new File(path + name + ".png"); if (file.exists()) return; FileOutputStream fos = new FileOutputStream(file); bitmap.compress(CompressFormat.PNG, 100, fos); fos.close(); } /** 从sdcard制定目录读取图片 */ public static Bitmap getBitmapFromSdcard(Context context, String file, String name) { String src = context.getFilesDir() + "/" + file + "/" + name; Bitmap bitmap = BitmapFactory.decodeFile(src); return bitmap; } /** * 从缓存中读取 * * @param url * @return * @throws Exception */ public static Bitmap getImgFromCache(final String url, final ImageView iv, final Map<String, SoftReference<Bitmap>> imgCache, final ImageCallBack callback) throws Exception { // 从内存中读取 if (imgCache.containsKey(url)) { synchronized (imgCache) { SoftReference<Bitmap> bitmapReference = imgCache.get(url); if (null != bitmapReference) { return bitmapReference.get(); } } } final Handler handler = new Handler() { @Override public void handleMessage(Message msg) { super.handleMessage(msg); callback.setImageBitmap((Bitmap) msg.obj, iv, url); } }; // 從網絡中下載 new Thread(new Runnable() { @Override public void run() { Bitmap bitmap = null; try { bitmap = getBitMapFromUrl(url); } catch (IOException e) { e.printStackTrace(); } // 将图片保存进内存中 imgCache.put(url, new SoftReference<Bitmap>(bitmap)); Message msg = handler.obtainMessage(0, bitmap); handler.sendMessage(msg); } }).start(); return null; } public interface ImageCallBack { public void setImageBitmap(Bitmap bitmap, ImageView iv, String url); } /** * get 请求 * * @param url路径 * @return * @throws Exception * @throws ClientProtocolException */ public static HttpResponse get(String url) throws Exception { HttpResponse response = null; HttpClient client = new DefaultHttpClient(); // 设置连接超时 client.getParams().setIntParameter( HttpConnectionParams.CONNECTION_TIMEOUT, 10000); // 设置编码 // client.getParams().setParameter(CoreProtocolPNames.HTTP_CONTENT_CHARSET, // "gb2312"); // get方式 HttpGet httpRequest = new HttpGet(url); // 发出一个request,并返回一个基于http协议的response // System.out.println("------toolkit 1066----------"); response = client.execute(httpRequest); return response; } /** * post请求 * * @param path * 请求的地址 * @param params * 参数列表 * @return * @throws Exception */ public static InputStream postRequest(String path, Map<String, String> params) throws Exception { // 封装请求参数 List<NameValuePair> pair = new ArrayList<NameValuePair>(); if (params != null && !params.isEmpty()) { for (Map.Entry<String, String> entry : params.entrySet()) { pair.add(new BasicNameValuePair(entry.getKey(), entry .getValue())); } } // 把请求参数变成请求体部分 UrlEncodedFormEntity uee = new UrlEncodedFormEntity(pair, "utf-8"); // 使用HttpPost对象设置发送的URL路径 final HttpPost post = new HttpPost(path); // 发送请求体 post.setEntity(uee); // 创建一个浏览器对象,以把POST对象向服务器发送,并返回响应消息 DefaultHttpClient dhc = new DefaultHttpClient(); // 设置连接超时 dhc.getParams().setIntParameter( HttpConnectionParams.CONNECTION_TIMEOUT, 10000); dhc.getParams().setIntParameter(HttpConnectionParams.SO_TIMEOUT, 10000); // 设置等待数据超时10s HttpResponse response = dhc.execute(post); Log.e("TAG", "服务器返回状态:----" + response.getStatusLine().getStatusCode()); if (response != null && response.getStatusLine().getStatusCode() == 200) { return response.getEntity().getContent(); } else post.abort(); return null; } /** * post请求 * * @param url路径 * @param list * 参数列表 * @return * @throws IOException * @throws ClientProtocolException */ public static HttpResponse post(String url, List<BasicNameValuePair> list, String encode) throws Throwable { HttpResponse response = null; HttpClient client = new DefaultHttpClient(); // 设置连接超时 client.getParams().setIntParameter( HttpConnectionParams.CONNECTION_TIMEOUT, 5000); client.getParams().setIntParameter(HttpConnectionParams.SO_TIMEOUT, 5000); // 设置等待数据超时5s // 创建一个 基于http协议的请求(post方式) HttpPost httpRequest = new HttpPost(url); if (list != null) { UrlEncodedFormEntity entity = new UrlEncodedFormEntity(list, encode); // 将请求中的参数信息放置到request中 httpRequest.setEntity(entity); } // 发出一个request,并返回一个基于http协议的response response = client.execute(httpRequest); return response; } /* * 参数说明: uploadUrl: Servlet的url fileName: 上传图片的文件名(如: qq.png) fileUrl: * 上传文件在手机客户端的完整路径(如: /sdcard/qq.png) */ public static InputStream upload(String uploadUrl, String fileName, String fileUrl) throws Exception { String end = "\r\n"; String twoHyphens = "--"; String boundary = "*****"; InputStream is = null; URL url = new URL(uploadUrl); HttpURLConnection conn = (HttpURLConnection) url.openConnection(); /* 允许Input、Output,不使用Cache */ conn.setDoInput(true); conn.setDoOutput(true); conn.setUseCaches(false); /* 设置传送的method=POST */ conn.setRequestMethod("POST"); /* setRequestProperty */ conn.setRequestProperty("Connection", "Keep-Alive"); conn.setRequestProperty("Charset", "UTF-8"); conn.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + boundary); // 将phone放置到请求的头部 if (fileName != null && fileUrl != null) { conn.setRequestProperty("picName", fileName); /* 设置DataOutputStream */ DataOutputStream ds = new DataOutputStream(conn.getOutputStream()); ds.writeBytes(twoHyphens + boundary + end); ds.writeBytes("Content-Disposition: form-data; " + "name=\"file1\";filename=\"" + fileName + "\"" + end); ds.writeBytes(end); /* 取得文件的FileInputStream */ FileInputStream fStream = new FileInputStream(fileUrl); /* 设置每次写入1024bytes */ int bufferSize = 1024; byte[] buffer = new byte[bufferSize]; int length = -1; /* 从文件读取数据至缓冲区 */ while ((length = fStream.read(buffer)) != -1) { /* 将资料写入DataOutputStream中 */ ds.write(buffer, 0, length); } ds.writeBytes(end); ds.writeBytes(twoHyphens + boundary + twoHyphens + end); /* close streams */ fStream.close(); ds.flush(); ds.close(); } /* 取得Response内容 */ is = conn.getInputStream(); return is; } // -------------------------------------加密,验证,转换系列----------------------------------------------------------- /** * 验证是否为手机号码 * * @param mobiles * @return */ public static boolean isMobileNO(String mobiles) { // Pattern p = // Pattern.compile("^((13[0-9])|(15[^4,\\D])|(18[0,1,2,5-9]))\\d{8}$"); Pattern p = Pattern.compile("^([0-9]{3})\\d{8}$"); Matcher m = p.matcher(mobiles); return m.matches(); } /** * 验证输入是否为邮箱 * * @param strEmail * @return */ public static boolean isEmail(String strEmail) { String strPattern = "^[a-zA-Z][\\w\\.-]*[a-zA-Z0-9]@[a-zA-Z0-9][\\w\\.-]*[a-zA-Z0-9]\\.[a-zA-Z][a-zA-Z\\.]*[a-zA-Z]$"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(strEmail); return m.matches(); } /** * 验证输入是否6位数字 * * @param strEmail * @return */ public static boolean isCode(String strCode) { String strPattern = "^[0-9]{6}"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(strCode); return m.matches(); } /** * 验证输入是否6位字符包含数字和字母,不包含特殊字符 * * @param strEmail * @return */ public static boolean isCheckCode(String strCode) { String strPattern = "^[0-9a-zA-Z]{6}"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(strCode); return m.matches(); } /** * 验证输入是否6到12位上字符包含数字和字母,包含特殊字符 * * @param strEmail * @return */ public static boolean isPassCode(String strCode) { String strPattern = "^[0-9a-zA-Z@*%#()><!_~]{6,12}"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(strCode); return m.matches(); } /** * 过滤url * * @param str * @return */ public static boolean isLegalUrlParameters(String str) { String strPattern = "[&=\\s]+"; Pattern p = Pattern.compile(strPattern); Matcher m = p.matcher(str); return m.find(); } /** * 验证ip * * @param text * @return */ public static boolean isIp(String text) { if (text != null && text != "") { // 定义正则表达式 String regex = "^(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|[1-9])\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)\\." + "(1\\d{2}|2[0-4]\\d|25[0-5]|[1-9]\\d|\\d)$"; // 判断ip地址是否与正则表达式匹配 if (text.matches(regex)) { // 返回判断信息 return true; } else { return false; } } return false; } /** * md5加密 * * @param s * @return * @throws Exception */ public final static String MD5(String s) throws Exception { char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; byte[] strTemp = s.getBytes(); MessageDigest mdTemp = MessageDigest.getInstance("MD5"); mdTemp.update(strTemp); byte[] md = mdTemp.digest(); int j = md.length; char str[] = new char[j * 2]; int k = 0; for (int i = 0; i < j; i++) { byte byte0 = md[i]; str[k++] = hexDigits[byte0 >>> 4 & 0xf]; str[k++] = hexDigits[byte0 & 0xf]; } return new String(str); } /** * 加密 * * @param sSrc * 原文 * @param sKey * 密码是16位 * @return * @throws Exception */ public static String AESEncrypt(String sSrc, String sKey) throws Exception { if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key无效"); return null; } byte[] raw = sKey.getBytes(); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes()); cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv); byte[] encrypted = cipher.doFinal(sSrc.getBytes()); return byte2hex(encrypted).toLowerCase(); } /** * 解密 * * @param sSrc * @param sKey密码是16位 * @return * @throws Exception */ public static String AESDecrypt(String sSrc, String sKey) throws Exception { // 判断Key是否正确 if (sKey == null) { System.out.print("Key为空null"); return null; } // 判断Key是否为16位 if (sKey.length() != 16) { System.out.print("Key无效"); return null; } byte[] raw = sKey.getBytes("ASCII"); SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); IvParameterSpec iv = new IvParameterSpec("0102030405060708".getBytes()); cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv); byte[] encrypted1 = hex2byte(sSrc); byte[] original = cipher.doFinal(encrypted1); String originalString = new String(original); return originalString; } private static final byte[] HEX_CHAR_TABLE = { (byte) '0', (byte) '1', (byte) '2', (byte) '3', (byte) '4', (byte) '5', (byte) '6', (byte) '7', (byte) '8', (byte) '9', (byte) 'A', (byte) 'B', (byte) 'C', (byte) 'D', (byte) 'E', (byte) 'F' }; /** * 十六进制无符号整数形式 * * @param raw * @param len * @return */ public static String getHex(byte[] raw, int len) { byte[] hex = new byte[2 * len]; int index = 0; int pos = 0; for (byte b : raw) { if (pos >= len) break; pos++; int v = b & 0xFF; hex[index++] = HEX_CHAR_TABLE[v >>> 4]; hex[index++] = HEX_CHAR_TABLE[v & 0xF]; } return new String(hex); } /** * 转换为10进制无符号字符串 * * @param bytes * @return */ public static long getDec(byte[] bytes) { long result = 0; long factor = 1; for (int i = 0; i < bytes.length; ++i) { long value = bytes[i] & 0xffl; result += value * factor; factor *= 256l; } return result; } /** * 二进制转换为16进制 * * @param b * @return */ public static String byte2hex(byte[] b) { String hs = ""; String stmp = ""; for (int n = 0; n < b.length; n++) { stmp = (java.lang.Integer.toHexString(b[n] & 0XFF)); if (stmp.length() == 1) { hs = hs + "0" + stmp; } else { hs = hs + stmp; } } return hs.toUpperCase(); } /** * 16进制转换为二进制 * * @param strhex * @return */ public static byte[] hex2byte(String strhex) { if (strhex == null) { return null; } int l = strhex.length(); if (l % 2 == 1) { return null; } byte[] b = new byte[l / 2]; for (int i = 0; i != l / 2; i++) { b[i] = (byte) Integer.parseInt(strhex.substring(i * 2, i * 2 + 2), 16); } return b; } /** * 16进制字符转换为int * * @param c * @return */ public static int reverseToInt(char c) { if (c == 'A') return 10; else if (c == 'B') return 11; else if (c == 'C') return 12; else if (c == 'D') return 13; else if (c == 'E') return 14; else if (c == 'F') return 15; else return Integer.parseInt(String.valueOf(c)); } /** * 16进制加法 * * @param src1 * @param src2 * @return */ public static String hexAdd(String src1, String src2) { int length1 = src1.toUpperCase().length(); int length2 = src2.toUpperCase().length(); String extend = ""; char sum[] = null; if (length1 > length2) {// 如果src1的长度大于src2 int num = length1 - length2; sum = new char[length1]; String zero = ""; for (int i = 0; i < num; i++) { zero += "0"; } src2 = zero + src2; // 遍历数组,然后相加 int add = 0, rest = 0; for (int i = length1 - 1; i >= 0; i--) { int a = reverseToInt(src1.toUpperCase().charAt(i)); int b = reverseToInt(src2.toUpperCase().charAt(i)); if (a + b + add >= 16) { int temp = add; add = (a + b + add) / 16; rest = (a + b + temp) % 16; sum[i] = reverseToChar(rest); } else { sum[i] = reverseToChar(a + b + add); add = 0; } } } else if (length1 < length2) {// src1的长度小于src2 int num = length2 - length1; sum = new char[length2]; String zero = ""; for (int i = 0; i < num; i++) { zero += "0"; } src1 = zero + src1; // 遍历数组,然后相加 int add = 0, rest = 0; for (int i = length2 - 1; i >= 0; i--) { int a = reverseToInt(src1.toUpperCase().charAt(i)); int b = reverseToInt(src2.toUpperCase().charAt(i)); if (a + b + add >= 16) { int temp = add; add = (a + b + add) / 16; rest = (a + b + temp) % 16; sum[i] = reverseToChar(rest); } else { sum[i] = reverseToChar(a + b + add); add = 0; } } } else {// 如果相等 // 遍历数组,然后相加 sum = new char[length2]; int add = 0, rest = 0; for (int i = length2 - 1; i >= 0; i--) { int a = reverseToInt(src1.toUpperCase().charAt(i)); int b = reverseToInt(src2.toUpperCase().charAt(i)); if (a + b + add >= 16) { int temp = add; add = (a + b + add) / 16; rest = (a + b + temp) % 16; sum[i] = reverseToChar(rest); if (i == 0) {// 如果i==0 extend = String.valueOf(add); } } else { sum[i] = reverseToChar(a + b + add); add = 0; } } } return extend + String.valueOf(sum); } /** * 整形转为16进制表示的char * * @param num * @return */ public static char reverseToChar(int num) { /* * if (num == 10) return 'A'; else if (num == 11) return 'B'; else if * (num == 12) return 'C'; else if (num == 13) return 'D'; else if (num * == 14) return 'E'; else if (num == 15) return 'F'; else return * String.valueOf(num).charAt(0); */ return Integer.toHexString(num).charAt(0); } /** * 16进制字符按位取反 * * @param num * @return */ public static String revers(String num) { num = num.toUpperCase(); char array[] = num.toCharArray(); for (int i = 0; i < array.length; i++) { if (array[i] == 'A') array[i] = reverseToChar(15 - 10); else if (array[i] == 'B') array[i] = reverseToChar(15 - 11); else if (array[i] == 'C') array[i] = reverseToChar(15 - 12); else if (array[i] == 'D') array[i] = reverseToChar(15 - 13); else if (array[i] == 'E') array[i] = reverseToChar(15 - 14); else if (array[i] == 'F') array[i] = reverseToChar(15 - 15); else array[i] = reverseToChar(15 - Integer.parseInt(String .valueOf(array[i]))); } // return String.valueOf(array); } /** * 输入流转换为byte数组 * * @param is * @return * @throws IOException */ public static byte[] streamToBytes(InputStream is) throws IOException { ByteArrayOutputStream os = new ByteArrayOutputStream(); byte[] buffer = new byte[1024]; int len; while ((len = is.read(buffer)) != -1) { os.write(buffer, 0, len); } return os.toByteArray(); } /** * 将输入流转为字符串 * * @param is * 输入流 * @param encode * 编码方式 * @return * @throws Exception */ public static String streamToString(InputStream is, String encode) throws Exception { byte[] data = streamToBytes(is); return new String(data, encode); } /** * 将String转换成InputStream * * @param in * @return * @throws UnsupportedEncodingException * @throws Exception */ public static InputStream StringTOInputStream(String in, String encode) throws IOException { ByteArrayInputStream is = new ByteArrayInputStream(in.getBytes(encode)); return is; } /** * 将byte数组转换为输入流 * * @param data * @return */ public static InputStream ByteToStream(byte[] data) { ByteArrayInputStream os = new ByteArrayInputStream(data); return os; } /** * 资源文件转换为bitmap * * @param context * @param resId * @return */ public static Bitmap getBitmapFromResource(Context context, int resId) { InputStream is = context.getResources().openRawResource(resId); return BitmapFactory.decodeStream(is); } /** * 返回当前日期xxxx年x月xx日x星期 * * @return */ public static String getDate() { Date date = new Date(); Calendar c = Calendar.getInstance(); c.setTime(date); String[] weekDays = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; int w = c.get(Calendar.DAY_OF_WEEK) - 1; if (w < 0) { w = 0; } String mDate = c.get(Calendar.YEAR) + "年" + c.get(Calendar.MONTH) + "月" + c.get(Calendar.DATE) + "日 " + weekDays[w]; return mDate; } }