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=a79bcf93abee7c4845ea2c288a43d3e983ca9b19;hpb=a24375557ffc7362886df61606252dbd9c382468;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 a79bcf93..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 © 2020 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
@@ -19,16 +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()
@@ -58,11 +64,16 @@ 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());
     }
@@ -75,4 +86,25 @@ public class Misc {
 
         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);
+    }
 }