2 * Copyright © 2020 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.text.Editable;
23 import android.view.WindowManager;
25 import androidx.annotation.Nullable;
26 import androidx.fragment.app.Fragment;
27 import androidx.fragment.app.FragmentActivity;
29 import org.jetbrains.annotations.Contract;
32 public static boolean isZero(float f) {
33 return (f < 0.005) && (f > -0.005);
35 public static void showSoftKeyboard(Activity activity) {
36 // make the keyboard appear
37 Configuration cf = activity.getResources()
39 if (cf.keyboard == Configuration.KEYBOARD_NOKEYS ||
40 cf.keyboardHidden == Configuration.KEYBOARDHIDDEN_YES)
42 .setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
44 public static void showSoftKeyboard(Fragment fragment) {
45 final FragmentActivity activity = fragment.getActivity();
47 showSoftKeyboard(activity);
49 public static void hideSoftKeyboard(Fragment fragment) {
50 final FragmentActivity activity = fragment.getActivity();
52 hideSoftKeyboard(activity);
54 public static void hideSoftKeyboard(Activity activity) {
55 Configuration cf = activity.getResources()
57 if (cf.keyboard == Configuration.KEYBOARD_NOKEYS ||
58 cf.keyboardHidden == Configuration.KEYBOARDHIDDEN_NO)
60 .setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
63 public static String emptyIsNull(String str) {
64 return "".equals(str) ? null : str;
66 public static String nullIsEmpty(String str) {
67 return (str == null) ? "" : str;
69 public static String nullIsEmpty(Editable e) {
74 public static boolean equalStrings(String u, CharSequence text) {
75 return nullIsEmpty(u).equals(text.toString());
77 public static boolean equalStrings(String a, String b) {
78 return nullIsEmpty(a).equals(nullIsEmpty(b));
80 public static String trim(@Nullable String string) {
86 @Contract(value = "null, null -> true; null, !null -> false; !null, null -> false", pure = true)
87 public static boolean equalIntegers(Integer a, Integer b) {
88 if ( a == null && b == null) return true;
89 if (a == null || b == null) return false;
93 @Contract(value = "null, null -> true; null, !null -> false; !null, null -> false", pure = true)
94 public static boolean equalLongs(Long a, Long b) {
95 if ( a == null && b == null) return true;
96 if (a == null || b == null) return false;