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 static boolean isEmail(String email) {

    if (TextUtils.isEmpty(email))
        return false;

    String expression = "^[\\w\\.-]+@([\\w\\-]+\\.)+[A-Z]{2,4}$";

    Pattern pattern = Pattern.compile(expression, Pattern.CASE_INSENSITIVE);
    Matcher matcher = pattern.matcher(email);

    return matcher.matches();

}

From source file:Main.java

public static String getDeviceId(TelephonyManager tm) {
    String id = tm.getSubscriberId();
    if (TextUtils.isEmpty(id)) {
        id = tm.getDeviceId();//from   w w  w.j  a  v a2 s .c om
    }
    if (TextUtils.isEmpty(id)) {
        id = UUID.randomUUID().toString();
    }
    return id;
}

From source file:Main.java

static void assertUriSafe(@Nullable Uri uri) {
    if (uri == null || TextUtils.isEmpty(uri.getScheme()) || TextUtils.isEmpty(uri.getHost())) {
        throw new RuntimeException("Unsafe uri provided");
    }//from   w w w  . j  a  v a 2  s. c  o  m
}

From source file:Main.java

public static boolean checkPhoneNumber(String phoneNumber) {
    if (TextUtils.isEmpty(phoneNumber)) {
        return false;
    }//ww w.  j a  v a 2  s.c  o  m
    String reg = "^[0-9]{11}$";
    Pattern pattern = Pattern.compile(reg);
    Matcher matcher = pattern.matcher(phoneNumber);
    return matcher.matches();
}

From source file:Main.java

public static Object jsonToBean(String jsonStr, Class<?> cl) {
    Object obj = null;/*from  w ww.j  ava 2  s  .com*/
    if (gson != null && !TextUtils.isEmpty(jsonStr)) {
        obj = gson.fromJson(jsonStr, cl);
    }
    return obj;
}

From source file:Main.java

public static double getAmount(String amountStr) {
    if (TextUtils.isEmpty(amountStr))
        return 0;
    else {/*from w  ww .j  a va 2 s. co m*/
        if (amountStr.startsWith("+"))
            amountStr = amountStr.substring(1);
        try {
            return NumberFormat.getInstance().parse(amountStr).doubleValue();
        } catch (ParseException e) {
            return 0;
        }
    }
}

From source file:Main.java

public static int isValidate(String... fields) {
    if (fields == null) {
        return 0;
    }/*  ww w. j  a va  2  s.c  o m*/

    for (int i = 0; i < fields.length; i++) {
        if (TextUtils.isEmpty(fields[i])) {
            return i;
        }

    }
    return -1;
}

From source file:Main.java

public static boolean checkUserPassword(String password) {
    if (TextUtils.isEmpty(password) || password.length() < USER_PASSWORD_LEN_MIN
            || password.length() > USER_PASSWORD_LEN_MAX) {
        return false;
    }//from   w w w .j  a v  a2  s  .c  o m

    return true;
}

From source file:Main.java

public static String getTopicUrl(String topicId, String urlArgs) {
    return "http://4pda.ru/forum/index.php?showtopic=" + topicId
            + (TextUtils.isEmpty(urlArgs) ? "" : ("&" + urlArgs));
}

From source file:Main.java

public static String byte2Common(Context context, String fsize) {
    if (TextUtils.isEmpty(fsize)) {
        return "";
    }/*from w  w w .j  a v a2s .c  om*/
    Long sizeLong = Long.parseLong(fsize);
    return Formatter.formatFileSize(context, sizeLong);
}