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 int decodeFileLength(String filePath) {
    if (TextUtils.isEmpty(filePath)) {
        return 0;
    }//w  w w .ja va  2  s .  co  m
    File file = new File(filePath);
    if (!file.exists()) {
        return 0;
    }
    return (int) file.length();
}

From source file:Main.java

public static int hex2color(String color) {
    if (TextUtils.isEmpty(color)) {
        color = "#ffffff";
    }//from  w  ww  .  j a v  a 2 s .  c  o  m

    int result;
    if (color.charAt(0) != '#') {
        color = "#" + color;
    }
    result = Color.parseColor(color);
    return result;
}

From source file:Main.java

public static String convertPackageName(String packageName) {
    if (TextUtils.isEmpty(packageName)) {
        return "";
    }//from ww  w.  j a  va 2s  .com
    int num = packageName.indexOf(PACKAGE_STR);
    if (num != -1) {
        return packageName.substring(PACKAGE_STR.length() + num, packageName.length());
    }
    return packageName;
}

From source file:Main.java

public static boolean isPhoneNumber(String phoneNumber) {
    if (!TextUtils.isEmpty(phoneNumber)) {
        String regex = "1([\\d]{10})|((\\+[0-9]{2,4})?\\(?[0-9]+\\)?-?)?[0-9]{7,8}";
        Pattern p = Pattern.compile(regex);
        Matcher matcher = p.matcher(phoneNumber);
        return matcher.find();
    } else {/*from   ww  w  . ja v  a2s  .  co  m*/
        return false;
    }
}

From source file:Main.java

public static int getCPUOnlineCores(String online_info) {
    if (TextUtils.isEmpty(online_info)) {
        return -1;
    }/*from ww w  .j  ava  2s  . c  om*/

    int result = 0;

    String[] nums;
    for (String temp_str : online_info.split(",")) {
        nums = temp_str.split("-");
        switch (nums.length) {
        case 1:
            ++result;
            break;
        case 2:
            result += (Integer.parseInt(nums[1]) - Integer.parseInt(nums[0])) + 1;
        }
    }

    return result;
}

From source file:Main.java

public static boolean hasChinese(String str) {
    if (TextUtils.isEmpty(str))
        return false;
    else {// w w  w. java  2s. c om
        String regEx = "[\u4e00-\u9fa5]";
        Pattern p = Pattern.compile(regEx);
        Matcher m = p.matcher(str);
        if (m.find())
            return true;
        else
            return false;
    }
}

From source file:Main.java

public static String getFormatTime(String format, long time) {
    if (TextUtils.isEmpty(format))
        return null;

    SimpleDateFormat dateFormat = new SimpleDateFormat(format);
    Date date = new Date(time);
    return dateFormat.format(date);
}

From source file:Main.java

public static boolean isExistFile(String fileName) {
    if (TextUtils.isEmpty(fileName)) {
        return false;
    }//from  w  w  w.  jav a2s .c  o m

    File file = new File(fileName);
    if (file.exists() && file.isFile()) {
        return true;
    }

    return false;
}

From source file:Main.java

public static void setupTextView(TextView tv, CharSequence chars) {
    if (TextUtils.isEmpty(chars)) {
        tv.setVisibility(View.GONE);
    } else {/*from   w w  w.  j a va2 s . co m*/
        tv.setVisibility(View.VISIBLE);
        tv.setText(chars);
    }
}

From source file:Main.java

public static boolean isUserNameCorrect(String userName) {
    if (!TextUtils.isEmpty(userName)) {
        Pattern pattern = Pattern.compile("^[0-9a-zA-Z_]{6,20}$");
        Matcher matcher = pattern.matcher(userName);
        return matcher.find();
    }/*from  w w  w  .j a v a2  s . c  om*/
    return false;
}