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 getWifiName(Context mContext) {
    String str;//  w  ww .  j  a va 2 s  .co m
    str = ((WifiManager) mContext.getSystemService(Context.WIFI_SERVICE)).getConnectionInfo().getBSSID();
    return TextUtils.isEmpty(str) ? "" : str;
}

From source file:Main.java

public static Bitmap getBitmapFromUrl(String imageUrl) {
    Bitmap bmp = null;/*from ww w.  jav a 2s . c om*/
    try {
        if (!TextUtils.isEmpty(imageUrl) && imageUrl.startsWith("http")) {
            URL url = new URL(imageUrl);
            bmp = BitmapFactory.decodeStream(url.openStream());
        } else {
            bmp = BitmapFactory.decodeFile(imageUrl);
        }
    } catch (Throwable ex) {

    }
    return bmp;
}

From source file:Main.java

public static SpannableString setTextBackground(String content, int startIndex, int endIndex,
        int backgroundColor) {
    if (TextUtils.isEmpty(content) || startIndex < 0 || endIndex >= content.length()
            || startIndex >= endIndex) {
        return null;
    }// w ww  .  j  a  v  a 2s  .  c  o  m

    SpannableString spannableString = new SpannableString(content);
    spannableString.setSpan(new BackgroundColorSpan(backgroundColor), startIndex, endIndex,
            Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

    return spannableString;
}

From source file:Main.java

/**
 * counter ASCII character as one, otherwise two
 *
 * @param str/*  ww  w  .j a va 2  s  .com*/
 * @return count
 */
public static int counterChars(String str) {
    // return
    if (TextUtils.isEmpty(str)) {
        return 0;
    }
    int count = 0;
    for (int i = 0; i < str.length(); i++) {
        int tmp = (int) str.charAt(i);
        if (tmp > 0 && tmp < 127) {
            count += 1;
        } else {
            count += 2;
        }
    }
    return count;
}

From source file:Main.java

public static void invokeMethod(String paramString, Object paramObject, Object[] paramArrayOfObject)
        throws Exception {
    if (TextUtils.isEmpty(paramString))
        throw new RuntimeException("method name can not be empty");
    if (paramObject == null)
        throw new RuntimeException("target object can not be null");
    ArrayList localArrayList = new ArrayList();
    int i = paramArrayOfObject.length;
    for (int j = 0; j < i; j++)
        localArrayList.add(paramArrayOfObject[j].getClass());
    Method localMethod = paramObject.getClass().getDeclaredMethod(paramString,
            (Class[]) localArrayList.toArray());
    if (localMethod == null)
        throw new RuntimeException(
                "target object: " + paramObject.getClass().getName() + " do not have this method: "
                        + paramString + " with parameters: " + localArrayList.toString());
    localMethod.setAccessible(true);//from ww w .  j av a  2 s. com
    localMethod.invoke(paramObject, paramArrayOfObject);
}

From source file:Main.java

public static List<String> getSubtitlePath(String videoPath) {
    List<String> sbPathList = new ArrayList<String>();
    if (TextUtils.isEmpty(videoPath))
        return sbPathList;
    if (videoPath.contains("file")) {
        videoPath = videoPath.substring(7);
    }/*w  ww  . j  ava  2  s  . c o  m*/

    int end = videoPath.lastIndexOf("/", videoPath.length());
    String path = videoPath.substring(0, end + 1);
    end = videoPath.lastIndexOf(".", videoPath.length());
    if (-1 == end || null == path)
        return sbPathList;

    String subffix = videoPath.substring(0, end);
    File files = new File(path);
    if ((files != null) && (files.exists()) && (files.isDirectory())) {
        File[] filesInDir = files.listFiles();
        long count = filesInDir.length;
        for (int num = 0; num < count; num++) {
            String filePath = filesInDir[num].getPath();
            File subTitleFile = new File(filePath);
            if ((subTitleFile != null) && (subTitleFile.isFile()) && (subTitleFile.canRead())) {
                int pos = filePath.lastIndexOf(".", filePath.length());
                String sub = filePath.substring(pos + 1, filePath.length());
                if ((filePath.startsWith(subffix)) && (sub != null)
                        && ((sub.equalsIgnoreCase("srt")) || (sub.equalsIgnoreCase("ass"))
                                || (sub.equalsIgnoreCase("smi")) || (sub.equalsIgnoreCase("ssa")))) {
                    sbPathList.add(filePath);
                }
            }
        }
        if (sbPathList.size() != 0) {
            return sbPathList;
        }
    }
    return sbPathList;
}

From source file:Main.java

public static void toast(Context context, String message) {
    if (!TextUtils.isEmpty(message)) {
        Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
    }/*  w  ww  .ja va  2 s .  c  om*/
}

From source file:Main.java

public static void uninstallApk(Context context, String packageName) {
    if (context == null)
        return;/*  w w  w.  j ava2 s .com*/
    if (TextUtils.isEmpty(packageName))
        return;
    Intent intent = new Intent(Intent.ACTION_DELETE);
    Uri packageURI = Uri.parse("package:" + packageName);
    intent.setData(packageURI);
    context.startActivity(intent);
}

From source file:Main.java

public static boolean isMobileNum(String mobiles) {
    Pattern p = Pattern.compile("^((13[0-9])|(15[^4,\\D])|(17[0-9])|(14[0-9])|(18[0-9]))\\d{8}$");
    Matcher m = p.matcher(mobiles);

    return !TextUtils.isEmpty(mobiles) && m.matches();
}

From source file:Main.java

public static boolean isNamedProcess(Context context, String processName) {
    if (context == null || TextUtils.isEmpty(processName)) {
        return false;
    }/*from  ww w  . ja  v a2s .com*/

    int pid = android.os.Process.myPid();
    ActivityManager manager = (ActivityManager) context.getSystemService(Context.ACTIVITY_SERVICE);
    List<ActivityManager.RunningAppProcessInfo> processInfoList = manager.getRunningAppProcesses();
    if (processInfoList == null) {
        return true;
    }

    for (ActivityManager.RunningAppProcessInfo processInfo : manager.getRunningAppProcesses()) {
        if (processInfo.pid == pid && processName.equalsIgnoreCase(processInfo.processName)) {
            return true;
        }
    }
    return false;
}