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| public class Utils { /** * 用途:判断蓝牙是否有效来判断是否为模拟器 * 返回:true 为模拟器 */ public static boolean notHasBlueTooth() { BluetoothAdapter ba = BluetoothAdapter.getDefaultAdapter(); if (ba == null) { return true; } else { // 如果有蓝牙不一定是有效的。获取蓝牙名称,若为null 则默认为模拟器 String name = ba.getName(); return TextUtils.isEmpty(name); } }
/** * 用途:依据是否存在光传感器来判断是否为模拟器 * 返回:true 为模拟器 */ public static Boolean notHasLightSensorManager(Context context) { SensorManager sensorManager = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE); //光 Sensor sensor8 = sensorManager.getDefaultSensor(Sensor.TYPE_LIGHT); return null == sensor8; }
/** * 用途:根据部分特征参数设备信息来判断是否为模拟器 * 返回:true 为模拟器 */ public static boolean isFeatures() { return Build.FINGERPRINT.startsWith("generic") || Build.FINGERPRINT.toLowerCase().contains("vbox") || Build.FINGERPRINT.toLowerCase().contains("test-keys") || Build.MODEL.contains("google_sdk") || Build.MODEL.contains("Emulator") || Build.MODEL.contains("Android SDK built for x86") || Build.MANUFACTURER.contains("Genymotion") || (Build.BRAND.startsWith("generic") && Build.DEVICE.startsWith("generic")) || "google_sdk".equals(Build.PRODUCT); }
/** * 用途:根据CPU是否为电脑来判断是否为模拟器 * 返回:true 为模拟器 */ public static boolean checkIsNotRealPhone() { String cpuInfo = readCpuInfo(); return cpuInfo.contains("intel") || cpuInfo.contains("amd"); }
/** * 用途:根据CPU是否为电脑来判断是否为模拟器(子方法) * 返回:String */ public static String readCpuInfo() { String result = ""; try { String[] args = {"/system/bin/cat", "/proc/cpuinfo"}; ProcessBuilder cmd = new ProcessBuilder(args);
Process process = cmd.start(); StringBuffer sb = new StringBuffer(); String readLine = ""; BufferedReader responseReader = new BufferedReader(new InputStreamReader(process.getInputStream(), "utf-8")); while ((readLine = responseReader.readLine()) != null) { sb.append(readLine); } responseReader.close(); result = sb.toString().toLowerCase(); } catch (IOException ex) { ex.printStackTrace(); } return result; }
/** * 用途:检测模拟器的特有文件 * 返回:true 为模拟器 */ private static final String[] KNOWN_PIPES = {"/dev/socket/qemud", "/dev/qemu_pipe"};
public static boolean checkPipes() { for (String pipes : KNOWN_PIPES) { File qemuSocket = new File(pipes); if (qemuSocket.exists()) { return true; } } return false; }
/** * 是否存在su命令,并且有执行权限 * * @return 存在su命令,并且有执行权限返回true */ public static boolean isSuEnable() { File file = null; String[] paths = {"/system/bin/", "/system/xbin/", "/system/sbin/", "/sbin/", "/vendor/bin/", "/su/bin/"}; try { for (String path : paths) { file = new File(path + "su"); if (file.exists() && file.canExecute()) { return true; } } } catch (Exception x) { x.printStackTrace(); } return false;
}
/** * 判断手机号格式 * * @param username = phone * @return boolean */ public static boolean isMobile(String username) { //"[1]"代表第1位为数字1,"[34578]"代表第二位可以为3、4、5、7、8中的一个,"\\d{9}"代表后面是可以是0~9的数字,有9位。 String num = "[1][3456789]\\d{9}"; //matches():字符串是否在给定的正则表达式匹配 return !TextUtils.isEmpty(username) && username.matches(num); }
/** * 手机号中间星号 * * @param phone =phone * @return s */ public static String missPhoneIndex(String phone) { return phone.replaceAll("(\\d{3})\\d{4}(\\d{4})", "$1****$2"); }
/** * 拨打电话,跳去拨号页面 * * @param context con * @param phoneNum p */ public static void callPhone(Context context, String phoneNum) { Intent intent = new Intent(Intent.ACTION_DIAL); Uri data = Uri.parse("tel:" + phoneNum); intent.setData(data); context.startActivity(intent); }
/** * 设置沉浸式状态栏 */ public static void setStatusBarTransparent(Activity activity) { Window window = activity.getWindow(); window.clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS | WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION); window.getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_STABLE); window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS); window.setStatusBarColor(Color.TRANSPARENT); }
/** * 获取相机和存储权限 * * @param activity a */ public static void checkPermission(Activity activity) { if (Build.VERSION.SDK_INT >= 23) { int checkPermission = activity.checkSelfPermission(Manifest.permission.CAMERA); if (checkPermission != PackageManager.PERMISSION_GRANTED) { activity.requestPermissions(new String[]{Manifest.permission.CAMERA, Manifest.permission.WRITE_EXTERNAL_STORAGE}, 100); return; } // 从6.0系统(API 23)开始,访问外置存储需要动态申请权限 checkPermission = activity.checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE); if (checkPermission != PackageManager.PERMISSION_GRANTED) { activity.requestPermissions(new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.CAMERA}, 100); } } }
/** * 获取状态栏高度 */ public static int getStatusBarHeight(Context context) { int result = 0; Resources res = context.getResources(); int resourceId = res.getIdentifier("status_bar_height", "dimen", "android"); if (resourceId > 0) { result = res.getDimensionPixelSize(resourceId); } return result; }
/** * @param target textview * @param title 主文字 * @param tag 标签文字 * @param mContext c */ public static void addTagToTextView(TextView target, String title, String tag, Context mContext) { if (TextUtils.isEmpty(title)) { title = ""; } String content = tag + title; //创建TextView对象,设置drawable背景,设置字体样式,设置间距,设置文本等 // 这里我们为了给TextView设置margin,给其添加了一个父容器LinearLayout。不过他俩都只是new出来的,不会添加进任何布局 LinearLayout layout = new LinearLayout(mContext); TextView textView = new TextView(mContext); textView.setText(tag); textView.setBackground(mContext.getResources().getDrawable(R.drawable.home_news_bg, null)); textView.setTextSize(10); textView.setTextColor(Color.parseColor("#FFFFFF")); textView.setIncludeFontPadding(false); textView.setPadding(dip2px(mContext, 3), 0, dip2px(mContext, 3), 0); textView.setHeight(dip2px(mContext, 16)); textView.setGravity(Gravity.CENTER_VERTICAL); LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT); // 设置左间距 layoutParams.leftMargin = dip2px(mContext, 0); // 设置下间距,简单解决ImageSpan和文本竖直方向对齐的问题 layoutParams.bottomMargin = dip2px(mContext, 3); layout.addView(textView, layoutParams); //第二步,测量,绘制layout,生成对应的bitmap对象 layout.setDrawingCacheEnabled(true); layout.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED)); // 给上方设置的margin留出空间 layout.layout(0, 0, textView.getMeasuredWidth() + dip2px(mContext, (6)), textView.getMeasuredHeight()); // 获取bitmap对象 Bitmap bitmap = Bitmap.createBitmap(layout.getDrawingCache()); //千万别忘最后一步 layout.destroyDrawingCache(); //第三步,通过bitmap生成我们需要的ImageSpan对象 ImageSpan imageSpan = new ImageSpan(mContext, bitmap); //第四步将ImageSpan对象设置到SpannableStringBuilder的对应位置 SpannableStringBuilder ssb = new SpannableStringBuilder(content); //将尾部tag字符用ImageSpan替换 ssb.setSpan(imageSpan, 0, tag.length(), Spanned.SPAN_EXCLUSIVE_INCLUSIVE); target.setText(ssb); }
/** * 根据手机的分辨率从 dp 的单位 转成为 px(像素) */ public static int dip2px(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 */ public static int px2dip(Context context, float pxValue) { final float scale = context.getResources().getDisplayMetrics().density; return (int) (pxValue / scale + 0.5f); }
/** * 字符串是不是空 */ public static String isNullString(String text) { return (TextUtils.isEmpty(text) || "null".equals(text) ? "" : text); }
public static boolean isNullStr(String str) { return str == null || str.length() == 0 || "null".equals(str); }
/** * 获得资源 dimens (dp) * * @param context c * @param id 资源id * @return f */ public static float getDimens(Context context, int id) { DisplayMetrics dm = context.getResources().getDisplayMetrics(); float px = context.getResources().getDimension(id); return px / dm.density; }
/** * dp转px * * @param context c * @param dp f * @return int */ public static int dpToPx(Context context, float dp) { DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics(); return (int) ((dp * displayMetrics.density) + 0.5f); }
/** * bitmap转byteArr */ public static String buildTransaction(final String type) { return (type == null) ? String.valueOf(System.currentTimeMillis()) : type + System.currentTimeMillis(); }
public static byte[] bmpToByteArray(Bitmap bmp, boolean isRecycle) { ByteArrayOutputStream output = new ByteArrayOutputStream(); bmp.compress(Bitmap.CompressFormat.PNG, 100, output); if (isRecycle) { bmp.recycle(); } byte[] result = output.toByteArray(); try { output.close(); } catch (Exception e) { e.printStackTrace(); } return result; }
/** * 获取时间 */ public static String getYearTime(long time) { SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+0")); return simpleDateFormat.format(new Date(time)); }
/** * 获取时间 */ public static String getTime(long time) { DateFormat simpleDateFormat = new SimpleDateFormat(" HH:mm:ss", Locale.getDefault()); simpleDateFormat.setTimeZone(TimeZone.getTimeZone("GMT+0")); return simpleDateFormat.format(new Date(time)); }
/** * 将时间转换为时间戳 * * @param s s * @return s * @throws Exception e */ public static String dateToStamp(String s) throws Exception { //设置时间格式,将该时间格式的时间转换为时间戳 String res; SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); Date date = simpleDateFormat.parse(s); assert date != null; long time = date.getTime(); res = String.valueOf(time); return res; }
/** * 获取与当前时间的相差时间 * * @param s s * @return l */ public static long dateToStampLong(String s) {
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); Date date = new Date(); try { date = simpleDateFormat.parse(s); } catch (ParseException e) { e.printStackTrace(); } assert date != null; return date.getTime() - System.currentTimeMillis(); }
/** * 将时间戳转换为时间 * * @param s s * @return s * @throws Exception e */ public static String stampToTime(String s) throws Exception { String res; SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss", Locale.getDefault()); //将时间戳转换为时间 long lt = Long.parseLong(s); //将时间调整为yyyy-MM-dd HH:mm:ss时间样式 Date date = new Date(lt); res = simpleDateFormat.format(date); return res; }
/** * 参数进行XML化 * * @param map m,sign s * @return s */ public static String parseString2Xml(Map<String, String> map, String sign) { StringBuilder sb = new StringBuilder(); sb.append("<xml>"); Set es = map.entrySet(); for (Object e : es) { Map.Entry<String,String> entry = (Map.Entry) e; String k = (String) entry.getKey(); String v = (String) entry.getValue(); sb.append("<").append(k).append(">").append(v).append("</").append(k).append(">"); } sb.append("<sign>").append(sign).append("</sign>"); sb.append("</xml>"); return sb.toString(); }
/** * 获取签名 md5加密(微信支付必须用MD5加密) * 获取支付签名 * * @param params s * @return s */ public static String getSign(SortedMap<String, String> params, String wx_private_key) { String sign = null; StringBuffer sb = new StringBuffer(); Set es = params.entrySet(); for (Object e : es) { Map.Entry<String,String> entry = (Map.Entry) e; String k = (String) entry.getKey(); String v = (String) entry.getValue(); if (null != v && !"".equals(v) && !"sign".equals(k) && !"key".equals(k)) { sb.append(k + "=" + v + "&"); } } sb.append("key=" + wx_private_key); sign = MD5.getMessageDigest(sb.toString().getBytes()).toUpperCase(); return sign; }
/** * 获取一定长度的随机字符串 * * @param length 指定字符串长度 * @return 一定长度的字符串 */ public static String getRandomStringByLength(int length) { String base = "abcdefghijklmnopqrstuvwxyz0123456789"; Random random = new Random(); StringBuffer sb = new StringBuffer(); for (int i = 0; i < length; i++) { int number = random.nextInt(base.length()); sb.append(base.charAt(number)); } return sb.toString(); }
/** * 获取当前时间 yyyyMMddHHmmss * * @return String */ public static String getCurrTime() { Date now = new Date(); SimpleDateFormat outFormat = new SimpleDateFormat("yyyyMMddHHmmss", Locale.getDefault()); return outFormat.format(now); }
/** * xml解析 * @param xmlString s * @return map * @throws ParserConfigurationException s * @throws IOException s * @throws SAXException s */ public static Map<String, String> getMapFromXML(String xmlString) throws ParserConfigurationException, IOException, SAXException { //这里用Dom的方式解析回包的最主要目的是防止API新增回包字段 DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); DocumentBuilder builder = factory.newDocumentBuilder(); InputStream is = new ByteArrayInputStream(xmlString.getBytes()); Document document = builder.parse(is); //获取到document里面的全部结点 NodeList allNodes = document.getFirstChild().getChildNodes(); Node node; Map<String, String> map = new HashMap<String, String>(); int i = 0; while (i < allNodes.getLength()) { node = allNodes.item(i); if (node instanceof Element) { map.put(node.getNodeName(), node.getTextContent()); } i++; } return map; }
/** * 适配图文中的图片 * * @param bodyHTML xxx * @return xx */ public static String getHtmlData(String bodyHTML) { String head = "<head><style>img{max-width: 100%; width:auto; height: auto;}</style></head>"; return "<html>" + head + "<body>" + bodyHTML + "</body></html>"; } /** *Toast * */ private static Toast lastToast; public static void showToast(int resourceId) { showToast(resourceId, Toast.LENGTH_SHORT); } public static void showToast(int resourceId, int duration) { showToast(MallApp.getApplication().getResources().getString(resourceId), duration); } public static void showToast(String message) { showToast(message, Toast.LENGTH_SHORT); } public static void showToast(String message, int duration) { if (TextUtils.isEmpty(message)) { return; } // 9.0 以上直接用调用即可防止重复的显示的问题,且如果复用 Toast 会出现无法再出弹出对话框问题 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) { Toast.makeText(MallApp.getApplication(), message, duration).show(); } else { if (lastToast != null) { lastToast.setText(message); } else { lastToast = Toast.makeText(MallApp.getApplication(), message, duration); } lastToast.show(); } } /** *验证码倒计时 * */ public static class CountDownTimerUtils extends CountDownTimer { private TextView mTextView; public CountDownTimerUtils(TextView textView, long millisInFuture, long countDownInterval) { super(millisInFuture, countDownInterval); this.mTextView = textView; }
@SuppressLint("SetTextI18n") @Override public void onTick(long millisUntilFinished) { //设置不可点击 mTextView.setClickable(false); //设置倒计时时间 mTextView.setText("重新发送 " + millisUntilFinished / 1000 + "s");
String time = mTextView.getText().toString(); //获取按钮上的文字 SpannableString spannableString = new SpannableString(time); ForegroundColorSpan span = new ForegroundColorSpan(mTextView.getContext().getColor(R.color.orange)); mTextView.setText(spannableString); }
@Override public void onFinish() { mTextView.setText("重新发送"); //重新获得点击 mTextView.setClickable(true); } } /*** * MD5加码 生成32位md5码 */ public static String string2MD5(String inStr){ MessageDigest md5 = null; try{ md5 = MessageDigest.getInstance("MD5"); }catch (Exception e){ System.out.println(e.toString()); e.printStackTrace(); return ""; } char[] charArray = inStr.toCharArray(); byte[] byteArray = new byte[charArray.length];
for (int i = 0; i < charArray.length; i++) { byteArray[i] = (byte) charArray[i]; } byte[] md5Bytes = md5.digest(byteArray); StringBuilder hexValue = new StringBuilder(); for (byte md5Byte : md5Bytes) { int val = ((int) md5Byte) & 0xff; if (val < 16) { hexValue.append("0"); } hexValue.append(Integer.toHexString(val)); } return hexValue.toString(); }
/** * 加密解密算法 执行一次加密,两次解密 */ public static String convertMD5(String inStr){
char[] a = inStr.toCharArray(); for (int i = 0; i < a.length; i++){ a[i] = (char) (a[i] ^ 't'); } String s = new String(a); return s;
} }
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