Restore support for Android < 12, set minimal version to 4

API level 12 is required for "subtype" code introduced in 1.7.
This adds a fallback for older version, "subtype" features are not
available but the keyboard is usable.

Changet he minimal version to 4 to be able to query the API level.

Using integer constant for versions because that's how it's presented in
the documentation. Build.VERSION_CODES is WTF.

2 files changed, 25 insertions, 4 deletions

diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index e3881df..fa4bf3f 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -5,7 +5,7 @@
 		android:versionName="1.8"
 		android:hardwareAccelerated="false">
 
-	<uses-sdk android:minSdkVersion="3"
+	<uses-sdk android:minSdkVersion="4"
 			android:targetSdkVersion="29" />
 
 	<application android:label="@string/app_name"
diff --git a/srcs/juloo.keyboard2/Keyboard2.java b/srcs/juloo.keyboard2/Keyboard2.java
index ef497ff..e32de42 100644
--- a/srcs/juloo.keyboard2/Keyboard2.java
+++ b/srcs/juloo.keyboard2/Keyboard2.java
@@ -6,6 +6,7 @@ import android.content.Intent;
 import android.content.SharedPreferences;
 import android.graphics.Typeface;
 import android.inputmethodservice.InputMethodService;
+import android.os.Build.VERSION;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.text.InputType;
@@ -114,13 +115,33 @@ public class Keyboard2 extends InputMethodService
     _config.accent_flags_to_remove = ~to_keep & KeyValue.FLAGS_ACCENTS;
   }
 
+  private void refreshSubtypeLegacyFallback()
+  {
+    // Fallback for the accents option: Only respect the "None" case
+    switch (_config.accents)
+    {
+      case 1: case 2: case 3: _config.accent_flags_to_remove = 0; break;
+      case 4: _config.accent_flags_to_remove = KeyValue.FLAGS_ACCENTS; break;
+    }
+    // Fallback for the layout option: Use qwerty in the "system settings" case
+    _currentTextLayout = (_config.layout == -1) ? R.xml.qwerty : _config.layout;
+  }
+
   private void refreshSubtypeImm()
   {
     InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
     _config.shouldOfferSwitchingToNextInputMethod = imm.shouldOfferSwitchingToNextInputMethod(getConnectionToken());
-    InputMethodSubtype subtype = imm.getCurrentInputMethodSubtype();
-    refreshSubtypeLayout(subtype);
-    refreshAccentsOption(imm, subtype);
+    if (VERSION.SDK_INT < 12)
+    {
+      // Subtypes won't work well under API level 12 (getExtraValueOf)
+      refreshSubtypeLegacyFallback();
+    }
+    else
+    {
+      InputMethodSubtype subtype = imm.getCurrentInputMethodSubtype();
+      refreshSubtypeLayout(subtype);
+      refreshAccentsOption(imm, subtype);
+    }
   }
 
 	@Override