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 void makeingCalls(Context context, String phoneNum) {
    if (TextUtils.isEmpty(phoneNum)) {
        return;/*from   w  w w .  jav a 2s  .c o  m*/
    }
    Intent phoneIntent = new Intent("android.intent.action.CALL", Uri.parse("tel:" + phoneNum));
    phoneIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
    context.startActivity(phoneIntent);
}

From source file:Main.java

public static boolean isEmailAdd(String email) {
    String emailRegex = "^([a-z0-9A-Z]+[-|\\.]?)+[a-z0-9A-Z]@([a-z0-9A-Z]+(-[a-z0-9A-Z]+)?\\.)+[a-zA-Z]{2,}$";
    if (TextUtils.isEmpty(email))
        return false;
    else/*  w  ww  . j a va 2  s  .c o m*/
        return email.matches(emailRegex);
}

From source file:Main.java

public static Bitmap bitmapFromBase64(String base64Str) {
    if (TextUtils.isEmpty(base64Str)) {
        return null;
    } else {//ww w.  jav a 2s.  c  om
        byte[] bytes = Base64.decode(base64Str, Base64.NO_WRAP);
        return BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
    }
}

From source file:Main.java

public static boolean isNotNull(String jsonStr, String key) {
    if (TextUtils.isEmpty(key)) {
        return false;
    }/*from   w w  w. ja va2s  .c om*/
    try {
        JSONObject jsonObject = new JSONObject(jsonStr);
        return !jsonObject.isNull(key);
    } catch (Exception e) {
    }
    return false;
}

From source file:Main.java

public static String matchUrl(String text) {
    if (TextUtils.isEmpty(text)) {
        return null;
    }/*w w  w .  ja va  2  s .c  om*/
    Pattern p = Pattern.compile("[http]+[://]+[0-9A-Za-z:/[-]_#[?][=][.][&]]*", Pattern.CASE_INSENSITIVE);
    Matcher matcher = p.matcher(text);
    if (matcher.find()) {
        return matcher.group();
    } else {
        return null;
    }
}

From source file:Main.java

public static Bitmap getMediaFrame(String filePath) {
    if (TextUtils.isEmpty(filePath)) {
        return null;
    }//from w w w  . j ava  2s  .c o  m
    Bitmap bitmap = ThumbnailUtils.createVideoThumbnail(filePath, MediaStore.Images.Thumbnails.MINI_KIND);

    bitmap = ThumbnailUtils.extractThumbnail(bitmap, 720, 387);
    return bitmap;
}

From source file:Main.java

public static String getImageType(String url, String type) {
    if (TextUtils.isEmpty(url)) {
        return null;
    }/*  www  .  java2s.c  o m*/

    return url.concat(type);
}

From source file:Main.java

public static long parseDateTime(String dateTime) {
    if (TextUtils.isEmpty(dateTime)) {
        return 0;
    }/*from  w w  w . j av a 2s. com*/

    long time = 0;
    try {
        Date date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(dateTime);
        if (null != date) {
            time = date.getTime();
        }
    } catch (ParseException e) {
        e.printStackTrace();
    }

    return time;
}

From source file:Main.java

public static Calendar str2calendar(String str) {
    if (TextUtils.isEmpty(str))
        return null;

    String[] strList = str.split("-");
    if (strList.length != 3 || !isNumber(strList[0]) || !isNumber(strList[1]) || !isNumber(strList[2]))
        return null;

    int year = Integer.parseInt(strList[0]);
    int month = Integer.parseInt(strList[1]);
    int day = Integer.parseInt(strList[2]);
    Calendar result = Calendar.getInstance();
    result.set(year, month - 1, day);// w w  w.j ava 2 s.c  o  m
    return result;
}

From source file:Main.java

public static String getFileName(String url) {
    if (TextUtils.isEmpty(url)) {
        return "";
    }//from   ww  w .  ja va  2 s  .c  o m
    return url.substring(url.lastIndexOf("/") + 1);
}