Example usage for android.text TextUtils isEmpty

Introduction

In this page you can find the example usage for android.text TextUtils isEmpty.

Prototype

public static boolean isEmpty(@Nullable CharSequence str)

Source Link

Document

Returns true if the string is null or 0-length.

Usage

From source file:Main.java

public final static boolean isValidEmail(CharSequence target) {
    if (TextUtils.isEmpty(target)) {
        return false;
    } else {//from w  w  w . j  ava 2 s  . c o m
        return android.util.Patterns.EMAIL_ADDRESS.matcher(target).matches();
    }
}

From source file:Main.java

public static boolean isEmptyOrWhitespace(String str) {
    if (TextUtils.isEmpty(str)) {
        return true;
    }//from   www.  j  a  v a  2s .com
    for (int i = 0; i < str.length(); i++) {
        if (!Character.isWhitespace(str.charAt(i))) {
            return false;
        }
    }
    return true;
}

From source file:Main.java

public static String safeText(String prefix, String obj) {
    if (TextUtils.isEmpty(obj))
        return "";
    return TextUtils.concat(prefix, obj).toString();
}

From source file:Main.java

public static String getHideMobile(String mobile) {
    if (TextUtils.isEmpty(mobile)) {
        return "";
    }//from  w w w. ja va2  s.  c  o m
    if (mobile.length() <= 3) {
        return mobile;
    }
    String str = mobile.substring(0, 3);
    for (int i = 3; i < mobile.length(); i++) {
        str += "X";
    }
    return str;
}

From source file:Main.java

public static String convertImageURL(String url, int w, int h) {
    url = TextUtils.isEmpty(url) ? "" : url;
    String str = new StringBuilder(url).append("?imageView2").append("/1/w/").append(w).append("/h/").append(h)
            .toString();//w  w  w .  j  a  v  a 2  s . com
    return str;
}

From source file:Main.java

public static String capitalizeFirstLetter(String paramString) {
    if (TextUtils.isEmpty(paramString))
        return paramString;
    if (paramString.length() == 1)
        return paramString.toUpperCase();
    return Character.toUpperCase(paramString.charAt(0)) + paramString.substring(1);
}

From source file:Main.java

public static String getStarMobile(String phoneNumber) {
    if (TextUtils.isEmpty(phoneNumber) || phoneNumber.length() < 11) {
        return "";
    }/*from  w w  w.  j  ava2s . c  o m*/
    StringBuilder builder = new StringBuilder();
    builder.append(phoneNumber.subSequence(0, 3));
    builder.append("****");
    builder.append(phoneNumber.subSequence(7, 11));
    return builder.toString();
}

From source file:Main.java

public static String toLowerCase(String strSrc) {
    if (TextUtils.isEmpty(strSrc)) {
        return strSrc;
    }/*from   w w w .j  a va2  s. c o  m*/
    char[] chars = strSrc.toCharArray();
    if (chars == null) {
        return strSrc;
    }
    for (int i = 0; i < chars.length; i++) {
        char c = chars[i];
        if ('A' <= c && c <= 'Z') {
            chars[i] = (char) (c + 'a' - 'A');
        }
    }
    return String.valueOf(chars);
}

From source file:Main.java

public static String mixPhone(String phone) {
    if (phone == null || TextUtils.isEmpty(phone) || phone.length() != 11) {
        return "";
    }/*w w  w  . j  a v a 2 s .  c  o  m*/
    String prefix = phone.substring(0, 3);
    String suffix = phone.substring(7, 11);
    return prefix + "****" + suffix;
}

From source file:Main.java

public static String convertToQuotedString(String string) {
    if (TextUtils.isEmpty(string))
        return "";

    final int lastPos = string.length() - 1;
    if (lastPos < 0 || (string.charAt(0) == '"' && string.charAt(lastPos) == '"')) {
        return string;
    }//from   w w  w . j  av  a2  s.  c o  m

    return "\"" + string + "\"";
}