Allow numeric value in secret code, user can set own secret code

close #45 (closed)

android/app/build.gradle

@@ -23,22 +23,22 @@ android {
         }
     }
 
-    signingConfigs {
-        release {
-            keyAlias keystoreProperties['keyAlias']
-            keyPassword keystoreProperties['keyPassword']
-            storeFile file(keystoreProperties['storeFile'])
-            storePassword keystoreProperties['storePassword']
-        }
-    }
+   signingConfigs {
+       release {
+           keyAlias keystoreProperties['keyAlias']
+           keyPassword keystoreProperties['keyPassword']
+           storeFile file(keystoreProperties['storeFile'])
+           storePassword keystoreProperties['storePassword']
+       }
+   }
 
-    buildTypes {
-        release {
-            signingConfig signingConfigs.release
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
+   buildTypes {
+       release {
+           signingConfig signingConfigs.release
+           minifyEnabled false
+           proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+       }
+   }
 }
 
 repositories {