Spell checking (#1137)

This adds dictionary-based spell checking to the keyboard. The keyboard looks at the word being typed and matches it against a dictionary to either complete the rest of the word or find alternative spellings.

The core of this feature is implemented in cdict, which is included as a
submodule in vendor/cidct.

Cdict is developped at https://github.com/Julow/cdict
The dictionaries are hosted at https://github.com/Julow/Unexpected-Keyboard-dictionaries/
The wordlists used to build the dictionaries are the same ones used by
HeliBoard from https://codeberg.org/Helium314/aosp-dictionaries

- Add an activity accessible from the launcher app that lists available
  dictionaries with a download button.
  The DictionaryListView view shows the list of available dictionaries and
  handles downloading and installing them.

- The Dictionaries class manages installed dictionaries. Dictionaries are
  installed as individual files into the app's private directory.

- Available dictionaries are listed in dictionaries.xml, which is generated
  when building Unexpected-Keyboard-dictionaries.
  method.xml mentions the dictionary name for each locales.

1 files changed, 8 insertions, 1 deletions

diff --git a/build.gradle.kts b/build.gradle.kts
index e111ac8..782b8db 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -27,7 +27,7 @@ android {
   sourceSets {
     named("main") {
       manifest.srcFile("AndroidManifest.xml")
-      java.srcDirs("srcs/juloo.keyboard2")
+      java.srcDirs("srcs/juloo.keyboard2", "vendor/cdict/java/juloo.cdict")
       res.srcDirs("res", "build/generated-resources")
       assets.srcDirs("assets")
     }
@@ -37,6 +37,12 @@ android {
     }
   }
 
+  externalNativeBuild {
+    ndkBuild {
+      path = file("vendor/Android.mk")
+    }
+  }
+
   signingConfigs {
     // Debug builds will always be signed. If no environment variables are set, a default
     // keystore will be initialized by the task initDebugKeystore and used. This keystore
@@ -116,6 +122,7 @@ val genLayoutsList by tasks.registering(Exec::class) {
 val genMethodXml by tasks.registering(Exec::class) {
   val out = projectDir.resolve("res/xml/method.xml")
   inputs.file(projectDir.resolve("gen_method_xml.py"))
+  inputs.file(projectDir.resolve("res/values/dictionaries.xml"))
   outputs.file(out)
   doFirst { println("\nGenerating res/xml/method.xml") }
   doFirst { standardOutput = FileOutputStream(out) }