Fix a crash

.idea/misc.xml

@@ -5,7 +5,7 @@
       <configuration PROFILE_NAME="Debug" CONFIG_NAME="Debug" />
     </configurations>
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

viewcomponents/src/main/java/com/afollestad/nocknock/viewcomponents/ext/StringExt.kt

@@ -0,0 +1,30 @@
+/**
+ * Designed and developed by Aidan Follestad (@afollestad)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.afollestad.nocknock.viewcomponents.ext
+
+fun String?.asSafeInt(defaultValue: Int = 0): Int {
+  if (this == null || this.trim().isEmpty()) {
+    return defaultValue
+  }
+  return this.toInt()
+}
+
+fun String?.asSafeLong(defaultValue: Long = 0): Long {
+  if (this == null || this.trim().isEmpty()) {
+    return defaultValue
+  }
+  return this.toLong()
+}

viewcomponents/src/main/java/com/afollestad/nocknock/viewcomponents/livedata/LiveDataViewExt.kt

@@ -26,6 +26,8 @@ import androidx.lifecycle.Observer
 import com.afollestad.nocknock.utilities.ext.onTextChanged
 import com.afollestad.nocknock.utilities.ext.setTextAndMaintainSelection
 import com.afollestad.nocknock.utilities.livedata.distinct
+import com.afollestad.nocknock.viewcomponents.ext.asSafeInt
+import com.afollestad.nocknock.viewcomponents.ext.asSafeLong
 import com.afollestad.nocknock.viewcomponents.ext.onItemSelected
 import com.afollestad.nocknock.viewcomponents.ext.showOrHide
 
@@ -54,10 +56,10 @@ inline fun <reified T> EditText.attachLiveData(
   if (pushOutChanges) {
     when {
       T::class == Int::class -> {
-        onTextChanged(debounce) { data.postValue(it.trim().toInt() as T) }
+        onTextChanged(debounce) { data.postValue(it.asSafeInt() as T) }
       }
       T::class == Long::class -> {
-        onTextChanged(debounce) { data.postValue(it.trim().toLong() as T) }
+        onTextChanged(debounce) { data.postValue(it.asSafeLong() as T) }
       }
       T::class == String::class -> {
         onTextChanged(debounce) { data.postValue(it as T) }