Fix gradle support while keeping ant support

Most of this was done by pserwylo on his branch feature/gradle. The only thing
left is merging the fixes into nanohttpd.

AndroidManifest.xml

@@ -302,7 +302,9 @@
         </activity>
         
         <!--Used for SSL TOFU, supported by extern/MemorizingTrustManager lib -->
-        <activity android:name="de.duenndns.ssl.MemorizingActivity" />
+        <activity
+                android:name="de.duenndns.ssl.MemorizingActivity"
+                android:theme="@android:style/Theme.Translucent.NoTitleBar" />
 
         <receiver android:name=".StartupReceiver" >
             <intent-filter>

ant-prepare.sh

@@ -3,7 +3,7 @@
 android update lib-project --path extern/UniversalImageLoader/library
 android update lib-project --path extern/AndroidPinning
 android update lib-project --path extern/MemorizingTrustManager
-android update lib-project --path extern/nanohttpd
+android update lib-project --path extern/nanohttpd/core
 android update lib-project --path extern/libsuperuser/libsuperuser
 android update project --path . --name F-Droid
 

build.gradle

@@ -7,14 +7,17 @@ buildscript {
 	}
 }
 
+def toolVersion = "19.1"
 apply plugin: 'android'
 
 dependencies {
 	compile files('libs/android-support-v4.jar')
+	compile files('libs/core-3.0.1.jar')
 	compile project(':extern:AndroidPinning')
 	compile project(':extern:UniversalImageLoader:library')
 	compile project(':extern:MemorizingTrustManager')
 	compile project(':extern:libsuperuser:libsuperuser')
+	compile project(':extern:nanohttpd:core')
 }
 
 project(':extern:UniversalImageLoader:library') {
@@ -27,11 +30,11 @@ project(':extern:UniversalImageLoader:library') {
 		}
 	}
 
-	apply plugin: 'android'
+	apply plugin: 'android-library'
 
 	android {
 		compileSdkVersion 16
-		buildToolsVersion '19.0.3'
+		buildToolsVersion toolVersion
 
 		sourceSets {
 			main {
@@ -47,7 +50,7 @@ project(':extern:UniversalImageLoader:library') {
 
 android {
 	compileSdkVersion 19
-	buildToolsVersion '19.0.3'
+    buildToolsVersion toolVersion
 
 	sourceSets {
 		main {
@@ -70,7 +73,47 @@ android {
 		}
 	}
 
-	tasks.withType(Compile) {
+    tasks.withType(Compile) { task ->
 		options.encoding = "UTF-8"
 	}
+
+}
+
+// TODO: This person took the example code below from another blogpost online, however
+// I lost the reference to it:
+// http://stackoverflow.com/questions/23297562/gradle-javadoc-and-android-documentation
+android.applicationVariants.all { variant ->
+
+    task("generate${variant.name}Javadoc", type: Javadoc) {
+        title = "$name $version API"
+        description "Generates Javadoc for F-Droid."
+        source = variant.javaCompile.source
+        ext.androidJar = "${android.plugin.sdkDirectory}/platforms/${android.compileSdkVersion}/android.jar"
+        classpath = files(variant.javaCompile.classpath.files) + files(ext.androidJar)
+        options.links("http://docs.oracle.com/javase/7/docs/api/");
+        options.links("http://d.android.com/reference/");
+        exclude '**/BuildConfig.java'
+        exclude '**/R.java'
+    }
+}
+
+// This is the hacky way which we force the subprojects to use the same build tools:
+// http://stackoverflow.com/a/21032272
+subprojects {
+    afterEvaluate {
+        android {
+
+            // The android build task only lets you configure the buildToolsVersion once, so if
+            // we execute the closure below to configure our subprojects, it will fail when it
+            // hits the second subproject. Therefore, we will only do it once, and I guess the
+            // android plubin will re-use the existing value I set. 
+            // https://android.googlesource.com/platform/tools/build/+/master/gradle/src/main/groovy/com/android/build/gradle/BaseExtension.groovy
+            try {
+                buildToolsVersion toolVersion
+                logger.info("Set buildToolsVersion to $toolVersion")
+            } catch (GradleException e) {
+                logger.info("Tried to set the buildToolsVersion, however we were not allowed to: $e.message")
+            }
+        }
+    }
 }

project.properties

@@ -6,4 +6,5 @@ android.library.reference.1=extern/UniversalImageLoader/library
 android.library.reference.2=extern/MemorizingTrustManager
 android.library.reference.3=extern/AndroidPinning
 android.library.reference.4=extern/nanohttpd
+# Once nanohttpd pull request is merged use android.library.reference.4=extern/nanohttpd/core
 android.library.reference.5=extern/libsuperuser/libsuperuser

settings.gradle

@@ -1 +1,5 @@
-include ':extern:AndroidPinning', ':extern:UniversalImageLoader:library', ':extern:MemorizingTrustManager', ':extern:libsuperuser:libsuperuser'
+include ':extern:AndroidPinning',
+    ':extern:UniversalImageLoader:library',
+    ':extern:MemorizingTrustManager',
+	':extern:libsuperuser:libsuperuser',
+	':extern:nanohttpd:core'