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

private static boolean hasAction(String actionText, View.OnClickListener onClickListener) {
    return !TextUtils.isEmpty(actionText) && onClickListener != null;
}

From source file:Main.java

public static boolean isValidEmail(String s) {
    if (TextUtils.isEmpty(s)) {
        return false;
    }//ww w . jav  a  2  s . co  m
    String strPattern = "\\w+([-+.]\\w+)*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*";
    Pattern p = Pattern.compile(strPattern);
    Matcher m = p.matcher(s);
    return m.matches();
}

From source file:Main.java

public static boolean isFixedPhoneNumber(String telNum) {
    if (TextUtils.isEmpty(telNum)) {
        return false;
    }//from w  w  w  .  j av  a  2 s. c o  m

    telNum = telNum.replaceAll("^\\+{0,1}86", "");

    boolean flag = false;
    if (telNum.matches("^0[1|2]\\d[1-9]\\d{4,6}$")) {
        flag = true;
    } else if (telNum.matches("^0[3-9]\\d{2}[1-9]\\d{4,5}$")) {
        flag = true;
    }

    return flag;
}

From source file:Main.java

public static boolean isEmail(String email) {
    if (TextUtils.isEmpty(email))
        return false;
    Pattern pattern = Pattern
            .compile("^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$");
    Matcher matcher = pattern.matcher(email);
    return matcher.matches();
}

From source file:Main.java

public static int getStringUTF8Length(final String str) {
    if (TextUtils.isEmpty(str)) {
        return 0;
    }/*from   ww w .  ja va  2s .  c  o m*/

    try {
        return str.getBytes("UTF-8").length;
    } catch (final UnsupportedEncodingException e) {
        return 0;
    }
}

From source file:Main.java

public static float getTextWidth(Paint paint, String text, float textSize) {
    if (TextUtils.isEmpty(text)) {
        return 0;
    }/*from  w  ww .j  a  v a  2  s  . com*/
    paint.setTextSize(textSize);
    float[] widths = new float[text.length()];
    paint.getTextWidths(text, widths);
    float totalWidth = 0;
    for (int i = 0; i < widths.length; i++) {
        totalWidth += widths[i];
    }
    return totalWidth;
}

From source file:Main.java

public static boolean isIDNumber(String id) {
    if (!TextUtils.isEmpty(id)) {
        Pattern pattern = Pattern
                .compile("^[1-9]\\d{5}[1-9]\\d{3}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}([0-9]|X)$");
        Matcher matcher = pattern.matcher(id);
        return matcher.find();
    }//ww w  .j  a  va 2 s .co m
    return false;
}

From source file:Main.java

public static String getLocation(String city, String country) {
    if (!TextUtils.isEmpty(city) && !TextUtils.isEmpty(country)) {
        return city + ", " + country;
    } else if (!TextUtils.isEmpty(city)) {
        return city;
    } else if (!TextUtils.isEmpty(country)) {
        return country;
    } else {/*from   w w  w.  jav  a  2  s.  co  m*/
        return "";
    }
}

From source file:Main.java

public static boolean isFileExist(String filePath) {
    if (TextUtils.isEmpty(filePath)) {
        return false;
    }// w w w  . j  ava  2s .  c om

    File file = new File(filePath);
    return (file.exists() && file.isFile());
}

From source file:Main.java

private static String getFileName(String fileName) {
    if (!TextUtils.isEmpty(fileName)) {
        int fragment = fileName.lastIndexOf('#');
        if (fragment > 0) {
            fileName = fileName.substring(0, fragment);
        }//from ww  w .  j  a v a2 s  . c  o m

        int query = fileName.lastIndexOf('?');
        if (query > 0) {
            fileName = fileName.substring(0, query);
        }

        return fileName;
    } else {
        return "";
    }
}