Android---工具类Utils（你想不到的完美）
2020-11-18 本文已影响0人
小慧sir
/*
* framework工具�?
*/
public class Utils {
/** tag */
private static final String TAG = "Utils";
/**
* 安装某个应用
*
* @param context
* @param apkFile
* @return
*/
public static boolean installApp(Context context, File apkFile) {
try {
context.startActivity(getInstallAppIntent(apkFile));
return true;
} catch (Exception e) {
Log.w(TAG, e);
}
return false;
}
/**
* 获取安装应用的Intent
*
* @param apkFile
* @return
*/
public static Intent getInstallAppIntent(File apkFile) {
if (apkFile == null || !apkFile.exists()) {
return null;
}
Utils.chmod("777", apkFile.getAbsolutePath());
Uri uri = Uri.fromFile(apkFile);
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
intent.setDataAndType(uri, "application/vnd.android.package-archive");
return intent;
}
/**
* �?查某个包名的App是否已经安装
*
* @param context
* @param packageName
* @return
*/
public static boolean hasAppInstalled(Context context, String packageName) {
try {
PackageManager packageManager = context.getPackageManager();
packageManager.getPackageInfo(packageName,
PackageManager.GET_ACTIVITIES);
} catch (Exception e) {
return false;
}
return true;
}
/**
* 根据包名启动第三方App
*
* @param context
* @param packageName
* @return
*/
public static boolean launchAppByPackageName(Context context,
String packageName) {
if (TextUtils.isEmpty(packageName)) {
return false;
}
try {
Intent intent = context.getPackageManager()
.getLaunchIntentForPackage(packageName);
if (intent != null) {
context.startActivity(intent);
return true;
}
} catch (Exception e) {
Log.w(TAG, e);
}
return false;
}
public static String getAssetsFie(Context context, String name)
throws IOException {
InputStream is = context.getAssets().open(name);
int size = is.available();
// Read the entire asset into a local byte buffer.
byte[] buffer = new byte[size];
is.read(buffer);
is.close();
String content = new String(buffer, "UTF-8");
return content;
}
/**
* 是否为wifi连接状�??
*
* @param context
* @return
*/
public static boolean isWifiConnect(Context context) {
ConnectivityManager connectivitymanager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkinfo = connectivitymanager.getActiveNetworkInfo();
if (networkinfo != null) {
if ("wifi".equals(networkinfo.getTypeName().toLowerCase(Locale.US))) {
return true;
}
}
return false;
}
/**
* 是否有网络连�?
*
* @param context
* @return
*/
public static boolean isNetConnect(Context context) {
ConnectivityManager connectivitymanager = (ConnectivityManager) context
.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkinfo = connectivitymanager.getActiveNetworkInfo();
return networkinfo != null;
}
/**
* 获取权限
*
* @param permission
* 权限
* @param path
* 文件路径
*/
public static void chmod(String permission, String path) {
try {
String command = "chmod " + permission + " " + path;
Runtime runtime = Runtime.getRuntime();
runtime.exec(command);
} catch (IOException e) {
Log.e(TAG, "chmod", e);
}
}
/**
* 是否安装了sdcard�?
*
* @return true表示有，false表示没有
*/
public static boolean haveSDCard() {
if (android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED)) {
return true;
}
return false;
}
/**
* 获取系统内部可用空间大小
*
* @return available size
*/
public static long getSystemAvailableSize() {
File root = Environment.getRootDirectory();
StatFs sf = new StatFs(root.getPath());
long blockSize = sf.getBlockSize();
long availCount = sf.getAvailableBlocks();
return availCount * blockSize;
}
/**
* 获取sd卡可用空间大�?
*
* @return available size
*/
public static long getSDCardAvailableSize() {
long available = 0;
if (haveSDCard()) {
File path = Environment.getExternalStorageDirectory();
StatFs statfs = new StatFs(path.getPath());
long blocSize = statfs.getBlockSize();
long availaBlock = statfs.getAvailableBlocks();
available = availaBlock * blocSize;
} else {
available = -1;
}
return available;
}
/**
* 获取application层级的metadata
*
* @param context
* @param key
* @return
*/
public static String getApplicationMetaData(Context context, String key) {
try {
Object metaObj = context.getPackageManager().getApplicationInfo(
context.getPackageName(), PackageManager.GET_META_DATA).metaData
.get(key);
if (metaObj instanceof String) {
return metaObj.toString();
} else if (metaObj instanceof Integer) {
return ((Integer) metaObj).intValue() + "";
} else if (metaObj instanceof Boolean) {
return ((Boolean) metaObj).booleanValue() + "";
}
} catch (NameNotFoundException e) {
Log.w(TAG, e);
}
return "";
}
/**
* 获取版本�?
*
* @param context
* @return
*/
public static String getVersionName(Context context) {
try {
return context.getPackageManager().getPackageInfo(
context.getPackageName(), 0).versionName;
} catch (NameNotFoundException e) {
Log.w(TAG, e);
}
return null;
}
/**
* 获取版本�?
*
* @param context
* @return
*/
public static int getVersionCode(Context context) {
try {
return context.getPackageManager().getPackageInfo(
context.getPackageName(), 0).versionCode;
} catch (NameNotFoundException e) {
Log.w(TAG, e);
}
return 0;
}
/**
* 将px值转换为dip或dp值，保证尺寸大小不变
*
* @param pxValue
* @param scale
* （DisplayMetrics类中属�?�density�?
* @return
*/
public static int px2dip(Context context, float pxValue) {
float scale = context.getResources().getDisplayMetrics().density;
return (int) (pxValue / scale + 0.5f);
}
/**
* 将dip或dp值转换为px值，保证尺寸大小不变
*
* @param dipValue
* @param scale
* （DisplayMetrics类中属�?�density�?
* @return
*/
public static int dip2px(Context context, float dipValue) {
float scale = context.getResources().getDisplayMetrics().density;
return (int) (dipValue * scale + 0.5f);
}
/**
* 将px值转换为sp值，保证文字大小不变
*
* @param pxValue
* @param fontScale
* （DisplayMetrics类中属�?�scaledDensity�?
* @return
*/
public static int px2sp(Context context, float pxValue) {
float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (pxValue / fontScale + 0.5f);
}
/**
* 将sp值转换为px值，保证文字大小不变
*
* @param spValue
* @param fontScale
* （DisplayMetrics类中属�?�scaledDensity�?
* @return
*/
public static int sp2px(Context context, float spValue) {
float fontScale = context.getResources().getDisplayMetrics().scaledDensity;
return (int) (spValue * fontScale + 0.5f);
}
/**
* 隐藏键盘
*
* @param activity
* activity
*/
public static void hideInputMethod(Activity activity) {
hideInputMethod(activity, activity.getCurrentFocus());
}
/**
* 隐藏键盘
*
* @param context
* context
* @param view
* The currently focused view
*/
public static void hideInputMethod(Context context, View view) {
if (context == null || view == null) {
return;
}
InputMethodManager imm = (InputMethodManager) context
.getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null) {
imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
}
}
/**
* 显示输入键盘
*
* @param context
* context
* @param view
* The currently focused view, which would like to receive soft
* keyboard input
*/
public static void showInputMethod(Context context, View view) {
if (context == null || view == null) {
return;
}
InputMethodManager imm = (InputMethodManager) context
.getSystemService(Context.INPUT_METHOD_SERVICE);
if (imm != null) {
imm.showSoftInput(view, 0);
}
}
/**
* Bitmap缩放，注意源Bitmap在缩放后将会被回收�??
*
* @param origin
* @param width
* @param height
* @return
*/
public static Bitmap getScaleBitmap(Bitmap origin, int width, int height) {
float originWidth = origin.getWidth();
float originHeight = origin.getHeight();
Matrix matrix = new Matrix();
float scaleWidth = ((float) width) / originWidth;
float scaleHeight = ((float) height) / originHeight;
matrix.postScale(scaleWidth, scaleHeight);
Bitmap scale = Bitmap.createBitmap(origin, 0, 0, (int) originWidth,
(int) originHeight, matrix, true);
origin.recycle();
return scale;
}
/**
* 计算某一时间与现在时间间隔的文字提示
*/
public static String countTimeIntervalText(long time) {
long dTime = System.currentTimeMillis() - time;
// 15分钟
if (dTime < 15 * 60 * 1000) {
return "刚刚";
} else if (dTime < 60 * 60 * 1000) {
// �?小时
return "�?小时�?";
} else if (dTime < 24 * 60 * 60 * 1000) {
return (int) (dTime / (60 * 60 * 1000)) + "小时�?";
} else {
return DateFormat.format("MM-dd kk:mm", System.currentTimeMillis())
.toString();
}
}
/**
* 获取通知栏高�?
*
* @param context
* @return
*/
public static int getStatusBarHeight(Context context) {
int x = 0, statusBarHeight = 0;
try {
Class<?> c = Class.forName("com.android.internal.R$dimen");
Object obj = c.newInstance();
Field 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;
}
/**
* 获取标题栏高�?
*
* @param context
* @return
*/
public static int getTitleBarHeight(Activity context) {
int contentTop = context.getWindow()
.findViewById(Window.ID_ANDROID_CONTENT).getTop();
return contentTop - getStatusBarHeight(context);
}
/**
* 获取屏幕宽度，px
*
* @param context
* @return
*/
public static float getScreenWidth(Context context) {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
return dm.widthPixels;
}
/**
* 获取屏幕高度，px
*
* @param context
* @return
*/
public static float getScreenHeight(Context context) {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
return dm.heightPixels;
}
/**
* 获取屏幕像素密度
*
* @param context
* @return
*/
public static float getDensity(Context context) {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
return dm.density;
}
/**
* 获取scaledDensity
*
* @param context
* @return
*/
public static float getScaledDensity(Context context) {
DisplayMetrics dm = context.getResources().getDisplayMetrics();
return dm.scaledDensity;
}
/**
* 获取当前小时分钟�?24小时�?
*
* @return
*/
public static String getTime24Hours() {
SimpleDateFormat formatter = new SimpleDateFormat("HH:mm", Locale.CHINA);
Date curDate = new Date(System.currentTimeMillis());// 获取当前时间
return formatter.format(curDate);
}
/**
* 获取电池电量,0~1
*
* @param context
* @return
*/
@SuppressWarnings("unused")
public static float getBattery(Context context) {
Intent batteryInfoIntent = context.getApplicationContext()
.registerReceiver(null,
new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
int status = batteryInfoIntent.getIntExtra("status", 0);
int health = batteryInfoIntent.getIntExtra("health", 1);
boolean present = batteryInfoIntent.getBooleanExtra("present", false);
int level = batteryInfoIntent.getIntExtra("level", 0);
int scale = batteryInfoIntent.getIntExtra("scale", 0);
int plugged = batteryInfoIntent.getIntExtra("plugged", 0);
int voltage = batteryInfoIntent.getIntExtra("voltage", 0);
int temperature = batteryInfoIntent.getIntExtra("temperature", 0); // 温度的单位是10�?
String technology = batteryInfoIntent.getStringExtra("technology");
return ((float) level) / scale;
}
/**
* 获取手机名称
*
* @return
*/
public static String getMobileName() {
return android.os.Build.MANUFACTURER + " " + android.os.Build.MODEL;
}
/**
* 是否安装了sdcard�?
*
* @return true表示有，false表示没有
*/
public static boolean hasSDCard() {
if (android.os.Environment.getExternalStorageState().equals(
android.os.Environment.MEDIA_MOUNTED)) {
return true;
}
return false;
}
/**
* 获取sd卡可用空�?
*
* @return available size
*/
public static long getAvailableExternalSize() {
long available = 0;
if (hasSDCard()) {
File path = Environment.getExternalStorageDirectory();
StatFs statfs = new StatFs(path.getPath());
long blocSize = statfs.getBlockSize();
long availaBlock = statfs.getAvailableBlocks();
available = availaBlock * blocSize;
} else {
available = -1;
}
return available;
}
/**
* 获取内存可用空间
*
* @return available size
*/
public static long getAvailableInternalSize() {
long available = 0;
if (hasSDCard()) {
File path = Environment.getRootDirectory();
StatFs statfs = new StatFs(path.getPath());
long blocSize = statfs.getBlockSize();
long availaBlock = statfs.getAvailableBlocks();
available = availaBlock * blocSize;
} else {
available = -1;
}
return available;
}
/*
* 版本控制部分
*/
/**
* 是否�?2.2版本及以�?
*
* @return
*/
public static boolean hasFroyo() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.FROYO;
}
/**
* 是否�?2.3版本及以�?
*
* @return
*/
public static boolean hasGingerbread() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.GINGERBREAD;
}
/**
* 是否�?3.0版本及以�?
*
* @return
*/
public static boolean hasHoneycomb() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB;
}
/**
* 是否�?3.1版本及以�?
*
* @return
*/
public static boolean hasHoneycombMR1() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR1;
}
/**
* 是否�?4.1版本及以�?
*
* @return
*/
public static boolean hasJellyBean() {
return Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN;
}
public static String getPhoneType() {
String phoneType = android.os.Build.MODEL;
Log.d(TAG, "phoneType is : " + phoneType);
return phoneType;
}
/**
* 获取系统版本�?
*
* @return
*/
public static String getOsVersion() {
String osversion;
int osversion_int = getOsVersionInt();
osversion = osversion_int + "";
return osversion;
}
/**
* 获取系统版本�?
*
* @return
*/
public static int getOsVersionInt() {
return Build.VERSION.SDK_INT;
}
/**
* 获取ip地址
*
* @return
*/
public static String getHostIp() {
try {
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()
&& InetAddressUtils.isIPv4Address(inetAddress
.getHostAddress())) {
if (!inetAddress.getHostAddress().toString()
.equals("null")
&& inetAddress.getHostAddress() != null) {
return inetAddress.getHostAddress().toString()
.trim();
}
}
}
}
} catch (Exception ex) {
Log.e("WifiPreference IpAddress", ex.toString());
}
return "";
}
/**
* 获取手机号，几乎获取不到
*
* @param context
* @return
*/
public static String getPhoneNum(Context context) {
TelephonyManager mTelephonyMgr = (TelephonyManager) context
.getApplicationContext().getSystemService(
Context.TELEPHONY_SERVICE);
String phoneNum = mTelephonyMgr.getLine1Number();
return TextUtils.isEmpty(phoneNum) ? "" : phoneNum;
}
/**
* 获取imei�?
*
* @param context
* @return
*/
public static String getPhoneImei(Context context) {
TelephonyManager mTelephonyMgr = (TelephonyManager) context
.getApplicationContext().getSystemService(
Context.TELEPHONY_SERVICE);
String phoneImei = mTelephonyMgr.getDeviceId();
Log.d(TAG, "IMEI is : " + phoneImei);
return TextUtils.isEmpty(phoneImei) ? "" : phoneImei;
}
/**
* 获取imsi�?
*
* @param context
* @return
*/
public static String getPhoneImsi(Context context) {
TelephonyManager mTelephonyMgr = (TelephonyManager) context
.getApplicationContext().getSystemService(
Context.TELEPHONY_SERVICE);
String phoneImsi = mTelephonyMgr.getSubscriberId();
Log.d(TAG, "IMSI is : " + phoneImsi);
return TextUtils.isEmpty(phoneImsi) ? "" : phoneImsi;
}
/**
* 获取mac地址
*
* @return
*/
public static String getLocalMacAddress() {
String Mac = null;
try {
String path = "sys/class/net/wlan0/address";
if ((new File(path)).exists()) {
FileInputStream fis = new FileInputStream(path);
byte[] buffer = new byte[8192];
int byteCount = fis.read(buffer);
if (byteCount > 0) {
Mac = new String(buffer, 0, byteCount, "utf-8");
}
fis.close();
}
if (Mac == null || Mac.length() == 0) {
path = "sys/class/net/eth0/address";
FileInputStream fis = new FileInputStream(path);
byte[] buffer_name = new byte[8192];
int byteCount_name = fis.read(buffer_name);
if (byteCount_name > 0) {
Mac = new String(buffer_name, 0, byteCount_name, "utf-8");
}
fis.close();
}
if (Mac == null || Mac.length() == 0) {
return "";
} else if (Mac.endsWith("\n")) {
Mac = Mac.substring(0, Mac.length() - 1);
}
} catch (Exception io) {
Log.w(TAG, "Exception", io);
}
return TextUtils.isEmpty(Mac) ? "" : Mac;
}
/**
* 获取重复字段�?多的个数
*
* @param s
* @return
*/
public static int getRepeatTimes(String s) {
if (TextUtils.isEmpty(s)) {
return 0;
}
int mCount = 0;
char[] mChars = s.toCharArray();
HashMap<Character, Integer> map = new HashMap<Character, Integer>();
for (int i = 0; i < mChars.length; i++) {
char key = mChars[i];
Integer value = map.get(key);
int count = value == null ? 0 : value.intValue();
map.put(key, ++count);
if (mCount < count) {
mCount = count;
}
}
return mCount;
}
/**
* �?单判断是否为手机号码
*
* @param num
* @return
*/
public static boolean isPhoneNum(String num) {
// 确保每一位都是数�?
return !TextUtils.isEmpty(num) && num.matches("1[0-9]{10}")
&& !isRepeatedStr(num) && !isContinuousNum(num);
}
/**
* 判断是否400服务代码
*
* @param num
* @return
*/
public static boolean is400or800(String num) {
return !TextUtils.isEmpty(num)
&& (num.startsWith("400") || num.startsWith("800"))
&& num.length() == 10;
}
/**
* 判断是否区域号码
*
* @param num
* @return
*/
public static boolean isAdCode(String num) {
return !TextUtils.isEmpty(num) && num.matches("[0]{1}[0-9]{2,3}")
&& !isRepeatedStr(num);
}
/**
* 判断是否座机号码
*
* @param num
* @return
*/
public static boolean isPhoneHome(String num) {
return !TextUtils.isEmpty(num) && num.matches("[0-9]{7,8}")
&& !isRepeatedStr(num);
}
/**
* 判断是否为重复字符串
*
* @param str
* ，需要检查的字符�?
*/
public static boolean isRepeatedStr(String str) {
if (TextUtils.isEmpty(str)) {
return false;
}
int len = str.length();
if (len <= 1) {
return false;
} else {
char firstChar = str.charAt(0);// 第一个字�?
for (int i = 1; i < len; i++) {
char nextChar = str.charAt(i);// 第i个字�?
if (firstChar != nextChar) {
return false;
}
}
return true;
}
}
/**
* 判断字符串是否为连续数字 45678901�?
*/
public static boolean isContinuousNum(String str) {
if (TextUtils.isEmpty(str))
return false;
if (!isNumbericString(str))
return true;
int len = str.length();
for (int i = 0; i < len - 1; i++) {
char curChar = str.charAt(i);
char verifyChar = (char) (curChar + 1);
if (curChar == '9')
verifyChar = '0';
char nextChar = str.charAt(i + 1);
if (nextChar != verifyChar) {
return false;
}
}
return true;
}
/**
* 判断字符串是否为连续字母 xyZaBcd�?
*/
public static boolean isContinuousWord(String str) {
if (TextUtils.isEmpty(str))
return false;
if (!isAlphaBetaString(str))
return true;
int len = str.length();
String local = str.toLowerCase();
for (int i = 0; i < len - 1; i++) {
char curChar = local.charAt(i);
char verifyChar = (char) (curChar + 1);
if (curChar == 'z')
verifyChar = 'a';
char nextChar = local.charAt(i + 1);
if (nextChar != verifyChar) {
return false;
}
}
return true;
}
/**
* 判断是否为纯数字
*
* @param str
* ，需要检查的字符�?
*/
public static boolean isNumbericString(String str) {
if (TextUtils.isEmpty(str)) {
return false;
}
Pattern p = Pattern.compile("^[0-9]+$");// 从开头到结尾必须全部为数�?
Matcher m = p.matcher(str);
return m.find();
}
/**
* 判断是否为纯字母
*
* @param str
* @return
*/
public static boolean isAlphaBetaString(String str) {
if (TextUtils.isEmpty(str)) {
return false;
}
Pattern p = Pattern.compile("^[a-zA-Z]+$");// 从开头到结尾必须全部为字母或者数�?
Matcher m = p.matcher(str);
return m.find();
}
/**
* 判断是否为纯字母或数�?
*
* @param str
* @return
*/
public static boolean isAlphaBetaNumbericString(String str) {
if (TextUtils.isEmpty(str)) {
return false;
}
Pattern p = Pattern.compile("^[a-zA-Z0-9]+$");// 从开头到结尾必须全部为字母或者数�?
Matcher m = p.matcher(str);
return m.find();
}
private static String regEx = "[\u4e00-\u9fa5]";
private static Pattern pat = Pattern.compile(regEx);
/**
* 判断是否包含中文
*
* @param str
* @return
*/
public static boolean isContainsChinese(String str) {
return pat.matcher(str).find();
}
public static boolean patternMatcher(String pattern, String input) {
if (TextUtils.isEmpty(pattern) || TextUtils.isEmpty(input)) {
return false;
}
Pattern pat = Pattern.compile(pattern);
Matcher matcher = pat.matcher(input);
return matcher.find();
}
/****************************************************************************/
// import PPutils
private static int id = 1;
public static int getNextId() {
return id++;
}
/**
* 将输入流转为字节数组
*
* @param inStream
* @return
* @throws Exception
*/
public static byte[] read2Byte(InputStream inStream) throws Exception {
ByteArrayOutputStream outSteam = new ByteArrayOutputStream();
byte[] buffer = new byte[1024];
int len = 0;
while ((len = inStream.read(buffer)) != -1) {
outSteam.write(buffer, 0, len);
}
outSteam.close();
inStream.close();
return outSteam.toByteArray();
}
/**
* 判断是否符合月和年的过期时间规则
*
* @param date
* @return
*/
public static boolean isMMYY(String date) {
try {
if (!TextUtils.isEmpty(date) && date.length() == 4) {
int mm = Integer.parseInt(date.substring(0, 2));
return mm > 0 && mm < 13;
}
} catch (Exception e) {
Log.e(TAG, "Exception", e);
}
return false;
}
/**
* 20120506 共八位，前四�?-年，中间两位-月，�?后两�?-�?
*
* @param date
* @return
*/
public static boolean isRealDate(String date, int yearlen) {
// if(yearlen != 2 && yearlen != 4)
// return false;
int len = 4 + yearlen;
if (date == null || date.length() != len)
return false;
if (!date.matches("[0-9]+"))
return false;
int year = Integer.parseInt(date.substring(0, yearlen));
int month = Integer.parseInt(date.substring(yearlen, yearlen + 2));
int day = Integer.parseInt(date.substring(yearlen + 2, yearlen + 4));
if (year <= 0)
return false;
if (month <= 0 || month > 12)
return false;
if (day <= 0 || day > 31)
return false;
switch (month) {
case 4:
case 6:
case 9:
case 11:
return day > 30 ? false : true;
case 2:
if (year % 4 == 0 && year % 100 != 0 || year % 400 == 0)
return day > 29 ? false : true;
return day > 28 ? false : true;
default:
return true;
}
}
/**
* 判断字符串是否为连续字符 abcdef 45678�?
*/
public static boolean isContinuousStr(String str) {
if (TextUtils.isEmpty(str))
return false;
int len = str.length();
for (int i = 0; i < len; i++) {
char curChar = str.charAt(i);
char nextChar = (char) (curChar + 1);
if (i + 1 < len) {
nextChar = str.charAt(i + 1);
}
if (nextChar != (curChar + 1)) {
return false;
}
}
return true;
}
public static final String REGULAR_NUMBER = "(-?[0-9]+)(,[0-9]+)*(\\.[0-9]+)?";
/**
* 为字符串中的数字染颜�?
*
* @param str
* ，待处理的字符串
* @param color
* ，需要染的颜�?
* @return
*/
public static SpannableString setDigitalColor(String str, int color) {
if (str == null)
return null;
SpannableString span = new SpannableString(str);
Pattern p = Pattern.compile(REGULAR_NUMBER);
Matcher m = p.matcher(str);
while (m.find()) {
int start = m.start();
int end = start + m.group().length();
span.setSpan(new ForegroundColorSpan(color), start, end,
Spannable.SPAN_EXCLUSIVE_INCLUSIVE);
}
return span;
}
public static boolean isChineseByREG(String str) {
if (str == null) {
return false;
}
Pattern pattern = Pattern.compile("[\\u4E00-\\u9FBF]+");
return pattern.matcher(str.trim()).find();
}
public static String getFixedNumber(String str, int length) {
if (str == null || length <= 0 || str.length() < length) {
return null;
}
Log.d(TAG, "getFixedNumber, str is : " + str);
Pattern p = Pattern.compile("\\d{" + length + "}");
Matcher m = p.matcher(str);
String result = null;
if (m.find()) {
int start = m.start();
int end = start + m.group().length();
result = str.substring(start, end);
}
return result;
}
public static int getLengthWithoutSpace(CharSequence s) {
int len = s.length();
int rlen = 0;
for (int i = 0; i < len; i++) {
if (s.charAt(i) != ' ')
rlen++;
}
return rlen;
}
/**
* 获取控件的宽度，如果获取的高度为0，则重新计算尺寸后再返回高度
*
* @param view
* @return
*/
public static int getViewMeasuredWidth(TextView view) {
// int height = view.getMeasuredHeight();
// if(0 < height){
// return height;
// }
calcViewMeasure(view);
return view.getMeasuredWidth();
}
/**
* 获取控件的高度，如果获取的高度为0，则重新计算尺寸后再返回高度
*
* @param view
* @return
*/
public static int getViewMeasuredHeight(TextView view) {
// int height = view.getMeasuredHeight();
// if(0 < height){
// return height;
// }
calcViewMeasure(view);
return view.getMeasuredHeight();
}
/**
* 测量控件的尺�?
*
* @param view
*/
public static void calcViewMeasure(View view) {
// int width =
// View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
// int height =
// View.MeasureSpec.makeMeasureSpec(0,View.MeasureSpec.UNSPECIFIED);
// view.measure(width,height);
int width = View.MeasureSpec.makeMeasureSpec(0,
View.MeasureSpec.UNSPECIFIED);
int expandSpec = View.MeasureSpec.makeMeasureSpec(
Integer.MAX_VALUE >> 2, View.MeasureSpec.AT_MOST);
view.measure(width, expandSpec);
}
public static String getDisDsrc(float dis) {
if (dis <= 0) {
return "";
}
String disStr = null;
if (dis > 1000) {
disStr = (float) Math.round(dis / 1000 * 10) / 10 + "km";
} else {
disStr = dis + "m";
}
return disStr;
}
public static boolean isValidDate(String str) {
boolean convertSuccess = true;
// 指定日期格式为四位年/两位月份/两位日期，注意yyyy/MM/dd区分大小写；
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM");
try {
// 设置lenient为false.
// 否则SimpleDateFormat会比较宽松地验证日期，比�?2007/02/29会被接受，并转换�?2007/03/01
format.setLenient(false);
format.parse(str);
} catch (ParseException e) {
// e.printStackTrace();
// 如果throw java.text.ParseException或�?�NullPointerException，就说明格式不对
convertSuccess = false;
}
return convertSuccess;
}
}
