Move the test text field to a separate activity and process

Fixes some jank exhibited by the fact that the keyboard and the EditText are running in the same process

java/AndroidManifest.xml

@@ -167,6 +167,26 @@
             android:label="@string/payment"
             android:clearTaskOnLaunch="false"
             android:launchMode="singleInstance" />
+
+
+        <activity
+            android:name=".uix.TextEditPopupActivity"
+            android:exported="true"
+            android:label="Testing Popup"
+            android:clearTaskOnLaunch="true"
+            android:launchMode="singleInstance"
+            android:visibleToInstantApps="true"
+            android:configChanges="orientation|screenLayout|screenSize|keyboardHidden|keyboard|uiMode|density"
+            android:process=":texteditpopup"
+            android:theme="@style/Theme.TextEditPopup">
+
+            <intent-filter>
+                <action android:name="android.speech.action.RECOGNIZE_SPEECH" />
+
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
     </application>
 
     <!-- To query enabled input methods for voice IME detection -->

java/res/values/themes.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <style name="Theme.TextEditPopup" parent="Theme.AppCompat.DayNight.Dialog">
+        <item name="windowNoTitle">true</item>
+        <item name="android:windowBackground">@null</item>
+        <item name="android:windowCloseOnTouchOutside">true</item>
+        <item name="android:windowIsFloating">true</item>
+        <item name="android:backgroundDimEnabled">true</item>
+    </style>
+</resources>

java/src/org/futo/inputmethod/latin/uix/TextEditPopupActivity.kt

@@ -0,0 +1,68 @@
+package org.futo.inputmethod.latin.uix
+
+import android.os.Bundle
+import android.view.inputmethod.EditorInfo
+import android.widget.EditText
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.graphics.toArgb
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalInspectionMode
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.viewinterop.AndroidView
+import org.futo.inputmethod.latin.R
+
+@Composable
+fun AndroidTextInput() {
+    val context = LocalContext.current
+    val bgColor = MaterialTheme.colorScheme.background
+    val fgColor = MaterialTheme.colorScheme.onBackground
+
+    if(!LocalInspectionMode.current) {
+        val editText = remember {
+            EditText(context).apply {
+                inputType = EditorInfo.TYPE_CLASS_TEXT
+                isSingleLine = false
+                this.
+
+                setHint(R.string.try_typing)
+                setBackgroundColor(bgColor.toArgb())
+                setTextColor(fgColor.toArgb())
+                setHintTextColor(fgColor.copy(alpha = 0.7f).toArgb())
+            }
+        }
+
+        LaunchedEffect(bgColor, fgColor) {
+            editText.setBackgroundColor(bgColor.toArgb())
+            editText.setTextColor(fgColor.toArgb())
+            editText.setHintTextColor(fgColor.copy(alpha = 0.7f).toArgb())
+        }
+
+        AndroidView({ editText }, modifier = Modifier
+            .fillMaxWidth()
+            .padding(16.dp), update = { editText.requestFocus() })
+    }
+}
+
+
+class TextEditPopupActivity : ComponentActivity() {
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setContent {
+            Surface(modifier = Modifier.padding(8.dp), shape = RoundedCornerShape(16.dp)) {
+                AndroidTextInput()
+            }
+        }
+    }
+
+}

java/src/org/futo/inputmethod/latin/uix/settings/pages/Home.kt

@@ -1,19 +1,17 @@
 package org.futo.inputmethod.latin.uix.settings.pages
 
-import android.widget.EditText
+import android.content.Intent
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
-import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
+import androidx.compose.material3.TextButton
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.platform.LocalInspectionMode
 import androidx.compose.ui.res.painterResource
@@ -21,11 +19,11 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
-import androidx.compose.ui.viewinterop.AndroidView
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.rememberNavController
 import org.futo.inputmethod.latin.BuildConfig
 import org.futo.inputmethod.latin.R
+import org.futo.inputmethod.latin.uix.TextEditPopupActivity
 import org.futo.inputmethod.latin.uix.USE_SYSTEM_VOICE_INPUT
 import org.futo.inputmethod.latin.uix.settings.NavigationItem
 import org.futo.inputmethod.latin.uix.settings.NavigationItemStyle
@@ -34,27 +32,6 @@ import org.futo.inputmethod.latin.uix.settings.useDataStoreValueBlocking
 import org.futo.inputmethod.latin.uix.theme.Typography
 import org.futo.inputmethod.updates.ConditionalUpdate
 
-@Composable
-fun AndroidTextInput() {
-    val context = LocalContext.current
-    val bgColor = MaterialTheme.colorScheme.background
-    val fgColor = MaterialTheme.colorScheme.onBackground
-
-    if(!LocalInspectionMode.current) {
-        val editText = remember {
-            EditText(context).apply {
-                setHint(R.string.try_typing)
-                setBackgroundColor(bgColor.toArgb())
-                setTextColor(fgColor.toArgb())
-                setHintTextColor(fgColor.copy(alpha = 0.7f).toArgb())
-            }
-        }
-        AndroidView({ editText }, modifier = Modifier
-            .fillMaxWidth()
-            .padding(8.dp))
-    }
-}
-
 @Preview(showBackground = true)
 @Composable
 fun HomeScreen(navController: NavHostController = rememberNavController()) {
@@ -166,6 +143,15 @@ fun HomeScreen(navController: NavHostController = rememberNavController()) {
             )
             Spacer(modifier = Modifier.height(32.dp))
         }
-        AndroidTextInput()
+        TextButton(onClick = {
+            val intent = Intent()
+            intent.setClass(context, TextEditPopupActivity::class.java)
+            intent.setFlags(
+                Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP or Intent.FLAG_ACTIVITY_CLEAR_TOP
+            )
+            context.startActivity(intent)
+        }, modifier = Modifier.fillMaxWidth()) {
+            Text(stringResource(R.string.try_typing), color = MaterialTheme.colorScheme.onBackground.copy(alpha = 0.7f), modifier = Modifier.fillMaxWidth())
+        }
     }
 }