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 getPicUrl(String baseProImgUrl, int size, int index) {
    if (TextUtils.isEmpty(baseProImgUrl))
        return "";

    int end = baseProImgUrl.lastIndexOf("?");
    String str_timemark = "";
    if (end > 0) {
        str_timemark = baseProImgUrl.substring(end); // /?123445
    }//from  w w w  .ja va2s .  c om

    end = baseProImgUrl.lastIndexOf("/");
    String innerUrl = baseProImgUrl.substring(0, end);

    end = innerUrl.lastIndexOf("/");
    String head = innerUrl.substring(0, end);
    String mid = innerUrl.substring(end);

    String items[] = mid.split("\\.");
    if (null == items || items.length != 3)
        return "";

    int flag = 0;
    for (int len = PIC_WIDTH.length, i = len - 1; i > -1; i--) {
        if (size >= PIC_WIDTH[i]) {
            flag = i;
            break;
        }
    }
    if (flag >= PIC_WIDTH.length)
        flag = PIC_WIDTH.length - 1;

    int resolution = PIC_WIDTH[flag] == 800 ? 0 : PIC_WIDTH[flag];

    String result = head + items[0] + "." + index + "." + items[2] + "/" + resolution + str_timemark;
    return result;
}

From source file:Main.java

/**
 * isStringEmpty//w w  w .  ja  v a2 s.c  o m
 * <p>
 * Check if the given string is empty
 * 
 * @return return true if the string is null or len-of-zero
 */
public static boolean isStringEmpty(String str) {
    return (str == null || TextUtils.isEmpty(str));
}

From source file:Main.java

public static SpannableString setTextSize(String content, int startIndex, int endIndex, int fontSize) {
    if (TextUtils.isEmpty(content) || fontSize <= 0 || startIndex >= endIndex || startIndex < 0
            || endIndex >= content.length()) {
        return null;
    }/*from  ww  w  . java2 s  .co m*/

    SpannableString spannableString = new SpannableString(content);
    spannableString.setSpan(new AbsoluteSizeSpan(fontSize), startIndex, endIndex,
            Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

    return spannableString;
}

From source file:Main.java

public static boolean isX86CPU() {
    String cpu = getCpuInfo();/*from  w w w .  ja v  a 2  s.co  m*/
    if (!TextUtils.isEmpty(cpu)) {
        if (cpu.contains("x86")) {
            return true;
        }
    }
    return false;
}

From source file:Main.java

public static long str2Long(String obj, Long defValue) {
    try {//from w  w  w.  ja  v  a  2 s  .c om
        if (TextUtils.isEmpty(obj))
            return defValue;
        return Long.parseLong(obj);
    } catch (Exception e) {
        e.printStackTrace();
    }
    return defValue;
}

From source file:Main.java

public static boolean isInstalled(Context context, String packageName) {
    boolean installed = false;
    if (TextUtils.isEmpty(packageName)) {
        return false;
    }/*from  w w  w.  j  a va2s .c  o m*/
    List<ApplicationInfo> installedApplications = context.getPackageManager().getInstalledApplications(0);
    for (ApplicationInfo in : installedApplications) {
        if (packageName.equals(in.packageName)) {
            installed = true;
            break;
        } else {
            installed = false;
        }
    }
    return installed;
}

From source file:Main.java

public static File getAndroidDataFile(String packageName) {
    String internalsd = Environment.getExternalStorageDirectory().getAbsolutePath(); //getInternalSdcardPath();
    return (TextUtils.isEmpty(internalsd) || TextUtils.isEmpty(packageName)) ? null
            : new File(internalsd, "Android/data/" + packageName);
}

From source file:Main.java

@Nullable
public static Uri safeUri(@NonNull String url) {
    if (TextUtils.isEmpty(url)) {
        return null;
    }//from  w  w w  . j a va 2s .  co m

    Uri uri = Uri.parse(url);

    if (TextUtils.isEmpty(uri.getScheme()) || TextUtils.isEmpty(uri.getHost())) {
        return null;
    }

    return uri;
}

From source file:Main.java

public static String getSourceApkPath(Context context, String packageName) {
    if (TextUtils.isEmpty(packageName))
        return null;

    try {/*from w  w w.j  a  va 2s.  com*/
        ApplicationInfo appInfo = context.getPackageManager().getApplicationInfo(packageName, 0);
        return appInfo.sourceDir;
    } catch (NameNotFoundException e) {
        e.printStackTrace();
    }

    return null;
}

From source file:Main.java

public static String getStoragePath() {
    if (!isCardExist())
        return null;
    File path = Environment.getExternalStorageDirectory();
    if (path != null && !TextUtils.isEmpty(path.getAbsolutePath())) {
        return path.getAbsolutePath();
    } else {/* w ww .  jav a2 s  .com*/
        return null;
    }
}