Produce readable error message when cert failure happens.

Author: tcoxon

comicViewer/src/main/java/net/bytten/comicviewer/Utility.java

@@ -29,6 +29,9 @@ private static URLConnection openRedirectableConnection(URL url, int redirects)
         if (conn instanceof HttpURLConnection) {
             HttpURLConnection http = (HttpURLConnection)conn;
             int status = http.getResponseCode();
+            if (status == -1) {
+                throw new IOException("A certificate failure occurred. Make sure your device is fully up to date."); // In practice, that seems to be when this HTTP failure occurs
+            }
             if (status == HttpURLConnection.HTTP_MOVED_TEMP || status == HttpURLConnection.HTTP_MOVED_PERM || status == HttpURLConnection.HTTP_SEE_OTHER) {
                 if (redirects > 2)
                     throw new IOException("Too many HTTP redirects");

xkcdViewer/build.gradle

@@ -1,7 +1,7 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 12
+    compileSdkVersion 10
     buildToolsVersion "25.0.2"
 
     defaultConfig {
@@ -16,6 +16,9 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
         }
     }
+    compileOptions {
+        targetCompatibility JavaVersion.VERSION_1_6
+    }
 }
 
 dependencies {