X-Git-Url: https://git.ktnx.net/?a=blobdiff_plain;f=app%2Fsrc%2Fmain%2Fjava%2Fnet%2Fktnx%2Fmobileledger%2Futils%2FMisc.java;h=349a04a5d9866e416cbb0c29216dc852281f255d;hb=40d4f7ebb9085a58133cf47eacf989ed35fa0b4e;hp=d333d4796c3c5dc85f1756134e8227709c451135;hpb=e7cde3553714eb10d2e2df6352334e72c4c7348f;p=mobile-ledger.git

diff --git a/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java b/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
index d333d479..349a04a5 100644
--- a/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
+++ b/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2019 Damyan Ivanov.
+ * Copyright © 2021 Damyan Ivanov.
  * This file is part of MoLe.
  * MoLe is free software: you can distribute it and/or modify it
  * under the term of the GNU General Public License as published by
@@ -19,15 +19,22 @@ package net.ktnx.mobileledger.utils;
 
 import android.app.Activity;
 import android.content.res.Configuration;
+import android.os.Handler;
+import android.os.Looper;
+import android.text.Editable;
 import android.view.WindowManager;
 
+import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 
+import org.jetbrains.annotations.Contract;
+
 public class Misc {
     public static boolean isZero(float f) {
         return (f < 0.005) && (f > -0.005);
     }
+    public static boolean equalFloats(float a, float b) { return isZero(a - b); }
     public static void showSoftKeyboard(Activity activity) {
         // make the keyboard appear
         Configuration cf = activity.getResources()
@@ -57,9 +64,47 @@ public class Misc {
 
     }
     public static String emptyIsNull(String str) {
-        return "".equals(str) ? null : str;
+        return str != null && str.isEmpty() ? null : str;
     }
     public static String nullIsEmpty(String str) {
         return (str == null) ? "" : str;
     }
+    public static String nullIsEmpty(Editable e) {
+        if (e == null)
+            return "";
+        return e.toString();
+    }
+    public static boolean equalStrings(String u, CharSequence text) {
+        return nullIsEmpty(u).equals(text.toString());
+    }
+    public static boolean equalStrings(String a, String b) {
+        return nullIsEmpty(a).equals(nullIsEmpty(b));
+    }
+    public static String trim(@Nullable String string) {
+        if (string == null)
+            return null;
+
+        return string.trim();
+    }
+    @Contract(value = "null, null -> true; null, !null -> false; !null, null -> false", pure = true)
+    public static boolean equalIntegers(Integer a, Integer b) {
+        if (a == null && b == null)
+            return true;
+        if (a == null || b == null)
+            return false;
+
+        return a.equals(b);
+    }
+    @Contract(value = "null, null -> true; null, !null -> false; !null, null -> false", pure = true)
+    public static boolean equalLongs(Long a, Long b) {
+        if (a == null && b == null)
+            return true;
+        if (a == null || b == null)
+            return false;
+
+        return a.equals(b);
+    }
+    public static void onMainThread(Runnable r) {
+        new Handler(Looper.getMainLooper()).post(r);
+    }
 }