Android实用工具类方法总结（一）
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前提需要
gson第三方库；
MD5；
import java.security.MessageDigest;public class MD5 { private MD5() {} public final static String getMessageDigest(String buffer) { char hexDigits[] = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; try { MessageDigest mdTemp = MessageDigest.getInstance("MD5"); byte[] md = buffer.getBytes(); 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); } catch (Exception e) { return null; } }}具体实现请看代码：
import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.IOException;import java.io.InputStream;import java.io.UnsupportedEncodingException;import java.lang.reflect.Field;import java.net.InetAddress;import java.net.NetworkInterface;import java.net.SocketException;import java.net.URLDecoder;import java.security.cert.CertificateException;import java.security.cert.CertificateFactory;import java.security.cert.X509Certificate;import java.util.Enumeration;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Map.Entry;import java.util.regex.Matcher;import java.util.regex.Pattern;import java.util.zip.ZipEntry;import java.util.zip.ZipFile;import android.app.ActionBar.LayoutParams;import android.app.Activity;import android.app.Application;import android.content.Context;import android.content.Intent;import android.content.SharedPreferences;import android.content.SharedPreferences.Editor;import android.content.pm.ApplicationInfo;import android.content.pm.PackageInfo;import android.content.pm.PackageManager;import android.content.pm.Signature;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.graphics.Canvas;import android.graphics.Color;import android.graphics.Paint;import android.graphics.Rect;import android.graphics.Typeface;import android.net.Uri;import android.net.wifi.WifiInfo;import android.net.wifi.WifiManager;import android.os.Build;import android.os.Build.VERSION;import android.os.Build.VERSION_CODES;import android.telephony.TelephonyManager;import android.text.ClipboardManager;import android.text.TextUtils;import android.util.Base64;import android.util.DisplayMetrics;import android.util.Log;import android.view.Display;import android.view.View;import android.view.View.MeasureSpec;import android.view.ViewGroup;import android.view.WindowManager;import android.view.inputmethod.InputMethodManager;import android.widget.LinearLayout;import android.widget.TextView;import com.google.gson.Gson;import com.google.gson.GsonBuilder;import com.google.gson.reflect.TypeToken;/** * @author yangshuai * @version 创建时间：2015-7-8 下午4:34:23 * 类说明 : */public class CommontUtils { /** * 按比例压缩图片，大图用这个压缩 * * @param image * @return */ private Bitmap comp(Bitmap image) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); image.compress(Bitmap.CompressFormat.JPEG, 100, baos); if (baos.toByteArray().length / 1024 > 1024) {// 判断如果图片大于1M,进行压缩避免在生成图片（BitmapFactory.decodeStream）时溢出 baos.reset();// 重置baos即清空baos image.compress(Bitmap.CompressFormat.JPEG, 50, baos);// 这里压缩50%，把压缩后的数据存放到baos中 } else { baos.reset();// 重置baos即清空baos image.compress(Bitmap.CompressFormat.JPEG, 80, baos);// 这里压缩50%，把压缩后的数据存放到baos中 } ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray()); BitmapFactory.Options newOpts = new BitmapFactory.Options(); // 开始读入图片，此时把options.inJustDecodeBounds 设回true了 newOpts.inJustDecodeBounds = true; Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, newOpts); newOpts.inJustDecodeBounds = false; int w = newOpts.outWidth; int h = newOpts.outHeight; // 现在主流手机比较多是800*480分辨率，所以高和宽我们设置为 float hh = 800f;// 这里设置高度为800f float ww = 480f;// 这里设置宽度为480f // 缩放比。由于是固定比例缩放，只用高或者宽其中一个数据进行计算即可 int be = 1;// be=1表示不缩放 if (w > h && w > ww) {// 如果宽度大的话根据宽度固定大小缩放 be = (int) (newOpts.outWidth / ww); } else if (w < h && h > hh) {// 如果高度高的话根据宽度固定大小缩放 be = (int) (newOpts.outHeight / hh); } if (be <= 0) be = 1; newOpts.inSampleSize = be;// 设置缩放比例 // 重新读入图片，注意此时已经把options.inJustDecodeBounds 设回false了 isBm = new ByteArrayInputStream(baos.toByteArray()); bitmap = BitmapFactory.decodeStream(isBm, null, newOpts); return compressImage(bitmap);// 压缩好比例大小后再进行质量压缩 } /** * 按质量压缩 * * @param image * @return */ private Bitmap compressImage(Bitmap image) { ByteArrayOutputStream baos = new ByteArrayOutputStream(); image.compress(Bitmap.CompressFormat.JPEG, 100, baos);// 质量压缩方法，这里100表示不压缩，把压缩后的数据存放到baos中 int options = 100; int len = baos.toByteArray().length; while (len / 1024 > 100) { // 循环判断如果压缩后图片是否大于100kb,大于继续压缩 // Log.d("BeautifulPrintActivity",len+"kb"); baos.reset();// 重置baos即清空baos image.compress(Bitmap.CompressFormat.JPEG, options, baos);// 这里压缩options%，把压缩后的数据存放到baos中 options -= 10;// 每次都减少10 len = baos.toByteArray().length; } ByteArrayInputStream isBm = new ByteArrayInputStream(baos.toByteArray());// 把压缩后的数据baos存放到ByteArrayInputStream中 Bitmap bitmap = BitmapFactory.decodeStream(isBm, null, null);// 把ByteArrayInputStream数据生成图片 return bitmap; } /** * 等比压缩 * * @param bitmap * @param scala * @return */ public static final Bitmap extractThumbNail(Bitmap bitmap, float scala) { try { int newHeight = (int) ((bitmap.getHeight()) * scala); int newWidth = (int) ((bitmap.getWidth()) * scala); final Bitmap scale = Bitmap.createScaledBitmap(bitmap, newWidth, newHeight, true); if (scale != null) { return scale; } } catch (final OutOfMemoryError e) { e.printStackTrace(); } return null; } /** * 封装链接上的键值对并保存到hashmap * * @param url * @return HashMap<key,value> */ public static HashMap<String, String> handleUrlParams(String url) { HashMap<String, String> hm = new HashMap<String, String>(); if (TextUtils.isEmpty(url)) { return hm; } if (url.contains("?") && url.indexOf("?") != url.length() - 1) { String params = url.substring(url.indexOf("?") + 1); if (params.contains("&")) { String[] paramArr = params.split("&"); for (int i = 0; i < paramArr.length; i++) { String str = paramArr[i]; if (str.contains("=")) { try { hm.put(str.substring(0, str.indexOf("=")), URLDecoder.decode( str.substring(str.indexOf("=") + 1, str.length()), "UTF-8")); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } } } } else { if (params.contains("=")) { try { hm.put(params.substring(0, params.indexOf("=")), URLDecoder.decode(params.substring( params.indexOf("=") + 1, params.length()), "UTF-8")); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } } } } return hm; } public static final Bitmap drawText2Bitmap(Context context, Bitmap bitmap, final String text) { int width = bitmap.getWidth(); int height = bitmap.getHeight(); Bitmap imgTemp = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(imgTemp); Paint paint = new Paint(); // 建立画笔 paint.setDither(true); paint.setFilterBitmap(true); Rect src = new Rect(0, 0, width, height); Rect dst = new Rect(0, 0, width, height); canvas.drawBitmap(bitmap, src, dst, paint); Paint textPaint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.DEV_KERN_TEXT_FLAG); textPaint.setTextSize(20.0f); textPaint.setTypeface(Typeface.DEFAULT_BOLD); // 采用默认的宽度 textPaint.setColor(Color.WHITE); canvas.drawText(text, width / 2 - 5, height / 2 + 5, textPaint); canvas.save(Canvas.ALL_SAVE_FLAG); canvas.restore(); return imgTemp; } /** * 绘制带文字的图片 * * @param color * 背景色 * @return */ public static final Bitmap imageAddText(Context context, final String text) { TextView txt = new TextView(context); txt.setText(text); txt.setDrawingCacheEnabled(true); txt.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); txt.layout(0, 0, txt.getMeasuredWidth(), txt.getMeasuredHeight()); Bitmap bitmap = txt.getDrawingCache(); return bitmap; } /** * 获取内部版本号全部信息，包括内部版本号与渠道信息 * * @return */ public static final String getVersionCodeAll(Application application) { if (TextUtils.isEmpty(channelCode)) { ApplicationInfo appinfo = application.getApplicationInfo(); String sourceDir = appinfo.sourceDir; String ret = ""; ZipFile zipfile = null; try { zipfile = new ZipFile(sourceDir); Enumeration<?> entries = zipfile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = ((ZipEntry) entries.nextElement()); String entryName = entry.getName(); if (entryName.startsWith("META-INF/cmbchannel")) { ret = entryName; break; } } } catch (IOException e) { // LogUtils.defaultLog(e); } finally { if (zipfile != null) { try { zipfile.close(); } catch (IOException e) { e.printStackTrace(); } } } String[] split = ret.split("_"); if (split != null && split.length >= 3) { Pattern p = Pattern.compile("\\d{3}?"); Matcher m = p.matcher(split[2]); if (m.find()) { channelCode = m.group(0); } else { channelCode = "000"; } } else { channelCode = "000"; } } return channelCode; } private static String channelCode = ""; private static String channel = ""; public static String getChannel(Context context) { if (TextUtils.isEmpty(channel)) { ApplicationInfo appinfo = context.getApplicationInfo(); String sourceDir = appinfo.sourceDir; String ret = ""; ZipFile zipfile = null; try { zipfile = new ZipFile(sourceDir); Enumeration<?> entries = zipfile.entries(); while (entries.hasMoreElements()) { ZipEntry entry = ((ZipEntry) entries.nextElement()); String entryName = entry.getName(); if (entryName.startsWith("META-INF/cmbchannel")) { ret = entryName; break; } } } catch (IOException e) { // LogUtils.defaultLog(e); } finally { if (zipfile != null) { try { zipfile.close(); } catch (IOException e) { e.printStackTrace(); } } } String[] split = ret.split("_"); if (split != null && split.length >= 3) { channel = split[1]; } else { channel = "unknown"; } } return channel; } /** * 拼接URL。返回主机地址及参数 * * @param map * @return */ public static String getHost(String url, HashMap<String, String> map) { return url + handlerURLParams(map); } /** * hashmap生成url参数地址 * * @param map * @return */ public static String handlerURLParams(HashMap<String, String> map) { if (map == null || map.size() == 0) { return ""; } StringBuilder sb = new StringBuilder(); for (Entry<String, String> entry : map.entrySet()) { String value = entry.getValue(); if (TextUtils.isEmpty(value)) { value = ""; } sb.append(entry.getKey() + "=" + value + "&"); } if (sb.length() > 0) { sb.deleteCharAt(sb.length() - 1); } return sb.toString(); } /** * 获取已完整安装签名信息 * * @return */ public static String getSignInfo(Context context) { try { PackageManager manager = context.getPackageManager(); PackageInfo packageInfo = manager.getPackageInfo( context.getPackageName(), PackageManager.GET_SIGNATURES); Signature[] signs = packageInfo.signatures; Signature sign = signs[0]; return parseSignature(sign.toByteArray()); } catch (Exception e) { e.printStackTrace(); return null; } } private static String parseSignature(byte[] signature) { try { CertificateFactory certFactory = CertificateFactory .getInstance("X.509"); X509Certificate cert = (X509Certificate) certFactory .generateCertificate(new ByteArrayInputStream(signature)); String pubKey = cert.getPublicKey().toString(); String signNumber = cert.getSerialNumber().toString(); return MD5.getMessageDigest(signNumber + cert.getSubjectDN().toString()); } catch (CertificateException e) { e.printStackTrace(); return null; } } private static DisplayMetrics displayMetrics = null; /** * dip 转 px * * @param dip * @return */ public static final int dip2px(float dip) { if (null == displayMetrics) displayMetrics = Resources.getSystem().getDisplayMetrics(); return (int) (displayMetrics.density * dip); } private static Typeface tf; /** * 修改textView的字体 * * @param textView */ public static final void setTypeFace(Context context,TextView textView) { getTypeFace(context.getApplicationContext()); textView.setTypeface(getTypeFace(context)); } public static final Typeface getTypeFace(Context context) { if (null == tf) { try { tf = Typeface.createFromAsset(context.getAssets(), "fonts/2B721B_0_0.ttf");//写放到asstes文件夹下面的字体文件 } catch (Exception e) { // LogUtils.defaultLog(e); } } return tf; } /** * 在指定的文件中读取数据 * * @param fileName * 文件名称 * @param objs * 数组{key,defaultValue} */ public static Object getSpFromFile(String fileName, Context context, Object[] objs) { try { SharedPreferences sp = getSP(fileName, context); if (objs[1] instanceof String) { return sp.getString(objs[0].toString(), objs[1].toString()); } else if (objs[1] instanceof Integer) { return sp.getInt(objs[0].toString(), Integer.parseInt(objs[1].toString())); } else if (objs[1] instanceof Long) { return sp.getLong(objs[0].toString(), Long.parseLong((objs[1].toString()))); } else if (objs[1] instanceof Float) { return sp.getFloat(objs[0].toString(), Float.parseFloat((objs[1].toString()))); } else if (objs[1] instanceof Boolean) { return sp.getBoolean(objs[0].toString(), Boolean.parseBoolean((objs[1].toString()))); } } catch (Exception e) { e.printStackTrace(); } return null; } /** * 获得指定名称文件存储数据库 * * @return */ private static SharedPreferences getSP(String name, Context context) { return context.getSharedPreferences(name, Context.MODE_WORLD_READABLE); } /** * 在指定的文件中保存数据 * * @param fileName * 文件名称 * @param objs * 数组{key,value} */ public static void saveSp2File(String fileName, Context context, Object[] objs) { try { SharedPreferences sp = getSP(fileName, context); Editor editor = sp.edit(); if (objs[1] instanceof String) { editor.putString(objs[0].toString(), objs[1].toString()); } else if (objs[1] instanceof Integer) { editor.putInt(objs[0].toString(), Integer.parseInt(objs[1].toString())); } else if (objs[1] instanceof Long) { editor.putLong(objs[0].toString(), Long.parseLong((objs[1].toString()))); } else if (objs[1] instanceof Float) { editor.putFloat(objs[0].toString(), Float.parseFloat((objs[1].toString()))); } else if (objs[1] instanceof Boolean) { editor.putBoolean(objs[0].toString(), Boolean.parseBoolean((objs[1].toString()))); } editor.commit(); } catch (Exception e) { e.printStackTrace(); } } /*** * 将json字符串转换为map * * @param json * @return */ public static Map<String, Object> parseDataToMap(String json) { GsonBuilder gb = new GsonBuilder(); Gson g = gb.create(); Map<String, Object> map = g.fromJson(json, new TypeToken<Map<String, Object>>() { }.getType()); return map; } /*** * 复制内容到系统的剪贴板 * * @param str */ public static void copy(Context ctx, String str) { // 获取剪贴板服务 ClipboardManager clipboard = (ClipboardManager) ctx .getSystemService(Context.CLIPBOARD_SERVICE); clipboard.setText(str.trim()); } /*** * 实现粘贴功能 * * @param ctx * @return */ public static String paste(Context ctx) { ClipboardManager clipboard = (ClipboardManager) ctx .getSystemService(Context.CLIPBOARD_SERVICE); return clipboard.getText().toString().trim(); } /*** * 从字符串中截取网址 * * @param str * 字符串 * @return */ public static String cutOutUrl(String str) { String url = ""; // Pattern p = Pattern.compile("(?<=//|)((\\w)+\\.)+\\w+"); Pattern p = Pattern.compile("^.*[com|cn|html]{1}$"); Matcher m = p.matcher(str); if (m.find()) { url = m.group(); } return url; } /*** * 根据网址打开网页 * * @param ctx * @param url * 网址 */ public static void jumpToURL(Context ctx, String url) { try { Uri uri = Uri.parse(url); Intent intent = new Intent(Intent.ACTION_VIEW, uri); ctx.startActivity(intent); } catch (Exception e) { if (!url.contains("http")) { Uri uri = Uri.parse("http://" + url); Intent intent = new Intent(Intent.ACTION_VIEW, uri); ctx.startActivity(intent); } } } /**** * 去除字符串中的空格、回车、换行符、制表符 * * @param str * @return */ public static String replaceBlank(String str) { String dest = ""; if (str != null) { Pattern p = Pattern.compile("\\s*|\t|\r|\n"); Matcher m = p.matcher(str); dest = m.replaceAll(""); } return dest; } /** * 当前是否是html * * @param str * @return */ public static final boolean isHtmlString(String str) { if (TextUtils.isEmpty(str)) return false; String regex = "<(\\S*?)[^>]*>.*?</\1>|<.*? />"; return str.matches(regex); } /*** * 将字节流转化成Bitmap * * @param code * @return */ public static Bitmap getBitmap(String code) { if (null == code) { return null; } Bitmap bitmap = null; byte[] data = Base64.decode(code, Base64.DEFAULT); if (null != data) { bitmap = BitmapFactory.decodeByteArray(data, 0, data.length); } else { return null; } return bitmap; } /** * 获取当前API Level * * @return */ public static int getCurrentApiLevel() { return android.os.Build.VERSION.SDK_INT; } /** * 获取设备厂商 * * @return */ public static String getDeviceBrand() { String deviceBrand = Build.BRAND; return deviceBrand; } /** * 最省内存的方式读取本地资源的图片 * * @param context * @param resId * @return */ public static Bitmap readBitMap(Context context, int resId) { BitmapFactory.Options opt = new BitmapFactory.Options(); opt.inPreferredConfig = Bitmap.Config.ARGB_8888; opt.inPurgeable = true; opt.inInputShareable = true; // 获取资源图片 InputStream is = context.getResources().openRawResource(resId); return BitmapFactory.decodeStream(is, null, opt); } /*** * 隐藏软键盘 * {@link #dismissSoftKeyboard(Activity)} */ @Deprecated public static void hideSoftInput(Context context) { if (((Activity) context).getCurrentFocus() != null && ((Activity) context).getCurrentFocus().getWindowToken() != null) { ((InputMethodManager) context.getSystemService(context.INPUT_METHOD_SERVICE)) .hideSoftInputFromWindow( ((Activity) context).getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); } } /** * 关闭系统的软键盘 * @param activity */ public static void dismissSoftKeyboard(Activity activity) { View view = activity.getWindow().peekDecorView(); if (view != null) { InputMethodManager inputmanger = (InputMethodManager)activity.getSystemService(Context.INPUT_METHOD_SERVICE); inputmanger.hideSoftInputFromWindow(view.getWindowToken(), 0); } } private static long lastClickTime; /** * 防暴力点击 * * @return ture:多次点击，不处理 */ public static boolean isFastDoubleClick() { long time = System.currentTimeMillis(); long timeD = time - lastClickTime; Log.e("点击时间差：", timeD + ""); if (0 < timeD && timeD < 1000) { lastClickTime = time; return true; } lastClickTime = time; return false; } /** * 获取状态栏高度 * @return */ protected int getStatusBarHeight(Context context) { Class<?> c = null; Object obj = null; Field field = null; int x = 0, statusBarHeight = 0; try { c = Class.forName("com.android.internal.R$dimen"); obj = c.newInstance(); field = c.getField("status_bar_height"); x = Integer.parseInt(field.get(obj).toString()); statusBarHeight = context.getResources().getDimensionPixelSize(x); } catch (Exception e1) { e1.printStackTrace(); } return statusBarHeight; } /** * 改变状态栏颜色 */ protected void changeStatusBarHeight(Context context){ if(VERSION.SDK_INT >= VERSION_CODES.KITKAT) { //透明状态栏 ((Activity) context).getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS); //透明导航栏 ((Activity) context).getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION); // 创建TextView TextView textView = new TextView(context); LinearLayout.LayoutParams lParams = new LinearLayout.LayoutParams(LayoutParams.MATCH_PARENT, getStatusBarHeight(context)); textView.setBackgroundResource(Color.parseColor("#A52A2A")); textView.setLayoutParams(lParams); // 获得根视图并把TextView加进去。 ViewGroup view = (ViewGroup) ((Activity) context).getWindow().getDecorView(); view.addView(textView); } } /** * 保存手机分辨率内部类 * @author yangshuai * */ public static class Screen{ public static int SCREEN_WIDTH = 0; public static int SCREEN_HEIGHT = 0; } /** * 获取手机分辨率 */ public static String getDisplayMetrix(Context context) { if (Screen.SCREEN_WIDTH == 0 || Screen.SCREEN_HEIGHT == 0) { if (context != null) { int width = 0; int height = 0; SharedPreferences DiaplayMetrixInfo = context.getSharedPreferences("display_metrix_info", 0); if (context instanceof Activity) { WindowManager windowManager = ((Activity)context).getWindowManager(); Display display = windowManager.getDefaultDisplay(); DisplayMetrics dm = new DisplayMetrics(); display.getMetrics(dm); width = dm.widthPixels; height = dm.heightPixels; Editor editor = DiaplayMetrixInfo.edit(); editor.putInt("width", width); editor.putInt("height", height); editor.commit(); } else { width = DiaplayMetrixInfo.getInt("width", 0); height = DiaplayMetrixInfo.getInt("height", 0); } Screen.SCREEN_WIDTH = width; Screen.SCREEN_HEIGHT = height; } } return Screen.SCREEN_WIDTH + "×" + Screen.SCREEN_HEIGHT; } /** * 检测某程序是否安装 */ public static boolean isInstalledApp(Context context, String packageName) { Boolean flag = false; try { PackageManager pm = context.getPackageManager(); List<PackageInfo> pkgs = pm.getInstalledPackages(PackageManager.GET_UNINSTALLED_PACKAGES); for (PackageInfo pkg : pkgs) { // 当找到了名字和该包名相同的时候，返回 if ((pkg.packageName).equals(packageName)) { return flag = true; } } } catch (Exception e) { e.printStackTrace(); } return flag; } /** * 安装.apk文件 * * @param context */ public void install(Context context, String fileName) { if (TextUtils.isEmpty(fileName) || context == null) { return; } try { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(android.content.Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(new File(fileName)), "application/vnd.android.package-archive"); context.startActivity(intent); } catch (Exception e) { e.printStackTrace(); } } /** * 安装.apk文件 * * @param context */ public void install(Context context, File file) { try { Intent intent = new Intent(Intent.ACTION_VIEW); intent.setDataAndType(Uri.fromFile(file), "application/vnd.android.package-archive"); context.startActivity(intent); } catch (Exception e) { e.printStackTrace(); } } /** * 根据手机的分辨率从 dp 的单位 转成为 px(像素) * * @return 返回像素值 */ public static int dp2px(Context context, float dpValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (dpValue * scale + 0.5f); } /** * 根据手机的分辨率从 px(像素) 的单位 转成为 dp * * @return 返回dp值 */ public static int px2dp(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); } /** * 设备唯一编码 */ private static String DEVICEKEY = ""; /** * 根据mac地址+deviceid * 获取设备唯一编码 * @return * @see #DEVICEKEY 设备唯一编码 */ public static String getDeviceKey(Context context) { if ("".equals(DEVICEKEY)) { String macAddress = ""; WifiManager wifiMgr = (WifiManager)context.getSystemService(context.WIFI_SERVICE); WifiInfo info = (null == wifiMgr ? null : wifiMgr.getConnectionInfo()); if (null != info) { macAddress = info.getMacAddress(); } TelephonyManager telephonyManager = (TelephonyManager)context.getSystemService(context.TELEPHONY_SERVICE); String deviceId = telephonyManager.getDeviceId(); DEVICEKEY = macAddress +","+ deviceId; } return DEVICEKEY; } /** * 获取手机及SIM卡相关信息 * @param context * @return */ public static Map<String, String> getPhoneInfo(Context context) { Map<String, String> map = new HashMap<String, String>(); TelephonyManager tm = (TelephonyManager) context .getSystemService(Context.TELEPHONY_SERVICE); String imei = tm.getDeviceId(); String imsi = tm.getSubscriberId(); String phoneMode = android.os.Build.MODEL; String phoneSDk = android.os.Build.VERSION.RELEASE; map.put("imei", imei); map.put("imsi", imsi); map.put("phoneMode", phoneMode+"##"+phoneSDk); map.put("model", phoneMode); map.put("sdk", phoneSDk); return map; } /** * 获取本地网络ip * @return */ public static String getLocalIpAddress() { String IP = null; StringBuilder IPStringBuilder = new StringBuilder(); try { Enumeration<NetworkInterface> networkInterfaceEnumeration = NetworkInterface.getNetworkInterfaces(); while (networkInterfaceEnumeration.hasMoreElements()) { NetworkInterface networkInterface = networkInterfaceEnumeration.nextElement(); Enumeration<InetAddress> inetAddressEnumeration = networkInterface.getInetAddresses(); while (inetAddressEnumeration.hasMoreElements()) { InetAddress inetAddress = inetAddressEnumeration.nextElement(); if (!inetAddress.isLoopbackAddress()&& !inetAddress.isLinkLocalAddress()&& inetAddress.isSiteLocalAddress()) { IPStringBuilder.append(inetAddress.getHostAddress().toString()); } } } } catch (SocketException ex) { ex.printStackTrace(); } IP = IPStringBuilder.toString(); return IP; } /** * dip转像素 * @param context * @param dip * @return */ public static int DipToPixels(Context context, int dip) { final float SCALE = context.getResources().getDisplayMetrics().density; float valueDips = dip; int valuePixels = (int) (valueDips * SCALE + 0.5f); return valuePixels; } /** * 像素转dip * @param context * @param Pixels * @return */ public static float PixelsToDip(Context context, int Pixels) { final float SCALE = context.getResources().getDisplayMetrics().density; float dips = Pixels / SCALE; return dips; } /** * 判断字符串是否为有效的url * @param url * @return */ public boolean isURL(String url) { // 转换为小写 url = url.toLowerCase(); String regex = "^((https|http|ftp|rtsp|mms)?://)" + "?(([0-9a-z_!~*'().&=+$%-]+: )?[0-9a-z_!~*'().&=+$%-]+@)?" // ftp的user@ + "(([0-9]{1,3}\\.){3}[0-9]{1,3}" // IP形式的URL- 199.194.52.184 + "|" // 允许IP和DOMAIN（域名） + "([0-9a-z_!~*'()-]+\\.)*" // 域名- www. + "([0-9a-z][0-9a-z-]{0,61})?[0-9a-z]\\." // 二级域名 + "[a-z]{2,6})" // first level domain- .com or .museum + "(:[0-9]{1,4})?" // 端口- :80 + "((/?)|" // a slash isn't required if there is no file name + "(/[0-9a-z_!~*'().;?:@&=+$,%#-]+)+/?)$"; return url.matches(regex); }} 0 0
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