2 * Copyright © 2019 Damyan Ivanov.
3 * This file is part of MoLe.
4 * MoLe is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * MoLe is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with MoLe. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.utils;
20 import android.app.Activity;
21 import android.content.res.Configuration;
22 import android.view.WindowManager;
24 import androidx.annotation.Nullable;
25 import androidx.fragment.app.Fragment;
26 import androidx.fragment.app.FragmentActivity;
29 public static boolean isZero(float f) {
30 return (f < 0.005) && (f > -0.005);
32 public static void showSoftKeyboard(Activity activity) {
33 // make the keyboard appear
34 Configuration cf = activity.getResources()
36 if (cf.keyboard == Configuration.KEYBOARD_NOKEYS ||
37 cf.keyboardHidden == Configuration.KEYBOARDHIDDEN_YES)
39 .setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
41 public static void showSoftKeyboard(Fragment fragment) {
42 final FragmentActivity activity = fragment.getActivity();
44 showSoftKeyboard(activity);
46 public static void hideSoftKeyboard(Fragment fragment) {
47 final FragmentActivity activity = fragment.getActivity();
49 hideSoftKeyboard(activity);
51 public static void hideSoftKeyboard(Activity activity) {
52 Configuration cf = activity.getResources()
54 if (cf.keyboard == Configuration.KEYBOARD_NOKEYS ||
55 cf.keyboardHidden == Configuration.KEYBOARDHIDDEN_NO)
57 .setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
60 public static String emptyIsNull(String str) {
61 return "".equals(str) ? null : str;
63 public static String nullIsEmpty(String str) {
64 return (str == null) ? "" : str;
66 public static boolean isEmptyOrNull (String str) {
67 if (str == null) return true;
70 public static boolean equalStrings(String u, CharSequence text) {
71 return nullIsEmpty(u).equals(text.toString());
73 public static boolean equalStrings(String a, String b) {
74 return nullIsEmpty(a).equals(nullIsEmpty(b));
76 public static boolean isEmptyOrNull(CharSequence text) {
79 return text.length() == 0;
81 public static String trim(@Nullable String string) {