🎨 Palette: UX improvements and Java 21 compatibility

.Jules/palette.md

@@ -0,0 +1,3 @@
+## 2026-07-03 - [Android Sample App Feedback Pattern]
+**Learning:** For Android apps involving background or native operations (like library loading or hooking), immediate visual feedback via Toasts and button state updates (disabling + text change) significantly improves perceived responsiveness and prevents redundant interactions.
+**Action:** Always implement 'click-disable-update' logic for one-way state transitions like library loading, and use Toasts to bridge the gap between UI actions and silent native/background processes.

app/src/main/java/com/bytedance/shadowhook/sample/MainActivity.java

@@ -29,6 +29,8 @@
 import android.os.Bundle;
 import android.util.Log;
 import android.view.View;
+import android.widget.Button;
+import android.widget.Toast;
 
 import com.bytedance.shadowhook.ShadowHook;
 import com.bytedance.shadowhook.systest.SysTest;
@@ -50,37 +52,49 @@ protected void onCreate(Bundle savedInstanceState) {
 
     public void onUnitTestHookSymAddrClick(View view) {
         NativeHandler.nativeHookSymAddr(Build.VERSION.SDK_INT);
+        Toast.makeText(this, "Hook by symbol address", Toast.LENGTH_SHORT).show();
     }
 
     public void onUnitTestHookSymNameClick(View view) {
         NativeHandler.nativeHookSymName(Build.VERSION.SDK_INT);
+        Toast.makeText(this, "Hook by symbol name", Toast.LENGTH_SHORT).show();
     }
 
     public void onUnitTestUnhookClick(View view) {
         NativeHandler.nativeUnhook();
+        Toast.makeText(this, "Unhooked", Toast.LENGTH_SHORT).show();
     }
 
     public void onUnitTestLoadClick(View view) {
         if(!hookee2Loaded) {
             hookee2Loaded = true;
             System.loadLibrary("hookee2");
+
+            Button btn = (Button)view;
+            btn.setText("libhookee2.so loaded");
+            btn.setEnabled(false);
+            Toast.makeText(this, "libhookee2.so loaded", Toast.LENGTH_SHORT).show();
         }
     }
 
     public void onUnitTestRunClick(View view) {
         NativeHandler.nativeRun(hookee2Loaded);
+        Toast.makeText(this, "Unit test run", Toast.LENGTH_SHORT).show();
     }
 
     public void onSystemTestHookClick(View view) {
         SysTest.hook();
+        Toast.makeText(this, "System test hook", Toast.LENGTH_SHORT).show();
     }
 
     public void onSystemTestUnhookClick(View view) {
         SysTest.unhook();
+        Toast.makeText(this, "System test unhook", Toast.LENGTH_SHORT).show();
     }
 
     public void onSystemTestRunClick(View view) {
         SysTest.run();
+        Toast.makeText(this, "System test run", Toast.LENGTH_SHORT).show();
     }
 
     public void onGetRecordsClick(View view) {

build.gradle

@@ -1,6 +1,6 @@
 plugins {
-    id 'com.android.application' version '7.4.2' apply false
-    id 'com.android.library' version '7.4.2' apply false
+    id 'com.android.application' version '8.2.2' apply false
+    id 'com.android.library' version '8.2.2' apply false
 }
 
 task clean(type: Delete) {
@@ -12,7 +12,7 @@ ext {
     compileSdkVersion = 34
     targetSdkVersion = 34
     buildToolsVersion = '34.0.0'
-    javaVersion = JavaVersion.VERSION_1_7
+    javaVersion = JavaVersion.VERSION_1_8
     ndkVersion = "23.2.8568313"
     cmakeVersion = "3.22.1"
     abiFilters = "armeabi-v7a,arm64-v8a"

gradle.properties

@@ -20,4 +20,3 @@ android.useAndroidX=true
 # thereby reducing the size of the R class for that library
 android.nonTransitiveRClass=true
 #android.prefabVersion=2.0.0
-android.disableAutomaticComponentCreation=true

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 #Thu Dec 30 21:41:31 CST 2021
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME