Update android example project and link with iconv (#423)

IB-7131

Signed-off-by: Raul Metsma <raul@metsma.ee>

examples/android/README.md

@@ -5,8 +5,4 @@
 1. Install dependencies see [README.md](../../README.md#macOS)
 2. Build example and run
 
-        open project with Android Studio, build and run
-
-Shared libraries must placed app/src/main/jniLibs/[armeabi-v7a,arm64-v8a,x86]/.
-Also /Library/libdigidocpp.androidarm/etc/digidocpp/schema content should be ziped and included app/src/main/res/raw/schema.zip path.
-It will be extracted on application execution and path given to library special digidoc.initializeLib(appName, path) JNI function.
+    ./gradlew installDebug

examples/android/app/build.gradle

@@ -1,11 +1,13 @@
 apply plugin: 'com.android.application'
 
+def libsPath = '/Library/libdigidocpp'
+
 android {
-    compileSdkVersion 29
+    compileSdkVersion 30
     defaultConfig {
         applicationId "ee.ria.libdigidocpp"
         minSdkVersion 21
-        targetSdkVersion 29
+        targetSdkVersion 30
         versionCode 1
         versionName "1.0"
         if (System.getenv("BUILD_NUMBER")) {
@@ -24,47 +26,48 @@ android {
         targetCompatibility JavaVersion.VERSION_1_8
         sourceCompatibility JavaVersion.VERSION_1_8
     }
+    sourceSets.main.java.srcDirs += [libsPath + '.androidarm/include']
 }
 
 dependencies {
-    implementation 'androidx.core:core:1.0.0'
+    implementation 'androidx.core:core:1.6.0'
 }
 
 task schemaZip(type:Zip) {
-    from ('/Library/libdigidocpp.androidarm/etc/digidocpp/schema/') {
+    println "Create schema zip"
+    from (libsPath + '.androidarm/etc/digidocpp/schema/') {
         include '*'
     }
-    destinationDir file('src/main/res/raw/')
-    archiveName 'schema.zip'
+    destinationDirectory = file('src/main/res/raw/')
+    archiveFileName = 'schema.zip'
 }
 
 task copyLibs {
+    println "Copy jniLibs"
     copy {
-        from fileTree('/Library/libdigidocpp.androidarm') {
+        from fileTree(libsPath + '.androidarm') {
             include 'lib/libdigidoc_java.so', 'arm-linux-androideabi/lib/armv7-a/libc++_shared.so'
         }.files
         into 'src/main/jniLibs/armeabi-v7a'
     }
     copy {
-        from fileTree('/Library/libdigidocpp.androidarm64') {
+        from fileTree(libsPath + '.androidarm64') {
             include 'lib/libdigidoc_java.so', 'aarch64-linux-android/lib/libc++_shared.so'
         }.files
         into 'src/main/jniLibs/arm64-v8a'
     }
     copy {
-        from fileTree('/Library/libdigidocpp.androidx86') {
+        from fileTree(libsPath + '.androidx86') {
             include 'lib/libdigidoc_java.so', 'i686-linux-android/lib/libc++_shared.so'
         }.files
         into 'src/main/jniLibs/x86'
     }
     copy {
-        from fileTree('/Library/libdigidocpp.androidx86_64') {
+        from fileTree(libsPath + '.androidx86_64') {
             include 'lib/libdigidoc_java.so', 'x86_64-linux-android/lib64/libc++_shared.so'
         }.files
         into 'src/main/jniLibs/x86_64'
     }
-    copy {
-        from fileTree('/Library/libdigidocpp.androidarm/include/ee/ria/libdigidocpp').files
-        into 'src/main/java/ee/ria/libdigidocpp/'
-    }
 }
+
+preBuild.dependsOn schemaZip, copyLibs