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 String urlEncode(String msg) {
    if (TextUtils.isEmpty(msg)) {
        return null;
    }//from   ww  w .  j  a  v  a2s.co m
    try {
        return URLEncoder.encode(msg, "UTF-8");
    } catch (UnsupportedEncodingException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    return null;
}

From source file:Main.java

public static String patternCode(String patternContent) {
    if (TextUtils.isEmpty(patternContent)) {
        return null;
    }//from  w w  w  .  j a va  2  s . c  o  m
    Pattern p = Pattern.compile("(?<!\\d)\\d{4}(?!\\d)");
    Matcher matcher = p.matcher(patternContent);
    if (matcher.find()) {
        return matcher.group();
    }
    return null;
}

From source file:Main.java

public static boolean deleteFile(String path) {
    if (TextUtils.isEmpty(path)) {
        return true;
    }//w  w  w. j  av a2  s. c  o m

    File file = new File(path);
    if (!file.exists()) {
        return true;
    }
    if (file.isFile()) {
        return file.delete();
    }
    if (!file.isDirectory()) {
        return false;
    }

    File[] files = file.listFiles();
    if (files == null || files.length == 0) {
        return file.delete();
    }

    for (File f : files) {
        if (isFileExists(f)) {
            f.delete();
        } else if (f.isDirectory()) {
            deleteFile(f.getAbsolutePath());
        }
    }
    return file.delete();
}

From source file:Main.java

public static boolean isValidWebAddress(CharSequence target) {
    return !TextUtils.isEmpty(target) && Patterns.DOMAIN_NAME.matcher(target).matches();
}

From source file:Main.java

public static boolean createDirectory(String dir) {
    if (TextUtils.isEmpty(dir)) {
        return false;
    }//from  w  ww .  j a v a  2 s  . c  om

    boolean result = true;
    File file = new File(dir);

    if (!file.exists()) {
        result = file.mkdirs();
    }
    return result;
}

From source file:Main.java

public static boolean isEmailAddress(String emailAddress) {
    if (!TextUtils.isEmpty(emailAddress)) {
        Pattern pattern = Pattern.compile("^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+.[a-zA-Z0-9-.]+$");
        Matcher matcher = pattern.matcher(emailAddress);
        return matcher.find();
    }/*  w w w  .jav a 2 s. com*/
    return false;
}

From source file:Main.java

@Nullable
public static Uri createSDCardUri(String url) {
    if (TextUtils.isEmpty(url)) {
        return null;
    }/*w ww  .  ja v  a 2s.  c  om*/
    return Uri.parse("file:///" + url);
}

From source file:Main.java

public static String getMIUIVersion() {
    if (TextUtils.isEmpty(miui_version)) {
        miui_version = getSystemProperties("ro.miui.ui.version.name");
    }//  w w w  .ja  v a  2  s  .c  o m

    return miui_version;
}

From source file:Main.java

public static boolean isVehiclePlate(String plate) {
    String telRegex = "/^[\\u4e00-\\u9fa5]{1}[a-zA-Z]{1}[a-zA-Z_0-9]{5}$/";
    if (TextUtils.isEmpty(plate))
        return false;
    else/* w  w w .j  a v  a2 s .  c o m*/
        return plate.matches(telRegex);
}

From source file:Main.java

public static void showToast(Context context, String msg) {
    if (TextUtils.isEmpty(msg)) {
        return;//ww  w.  jav  a  2 s .  c om
    }

    Toast.makeText(context, msg, Toast.LENGTH_SHORT).show();
}