diff --git a/app/.gitignore b/app/.gitignore
index 327034ee..f724c35a 100644
--- a/app/.gitignore
+++ b/app/.gitignore
@@ -1,3 +1,5 @@
 /build
 /release
 /debug
+/src/androidTest
+/src/test
\ No newline at end of file
diff --git a/app/src/androidTest/java/com/lt2333/simplicitytools/ExampleInstrumentedTest.java b/app/src/androidTest/java/com/lt2333/simplicitytools/ExampleInstrumentedTest.java
deleted file mode 100644
index f841a052..00000000
--- a/app/src/androidTest/java/com/lt2333/simplicitytools/ExampleInstrumentedTest.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.lt2333.simplicitytools;
-
-import android.content.Context;
-
-import androidx.test.platform.app.InstrumentationRegistry;
-import androidx.test.ext.junit.runners.AndroidJUnit4;
-
-import org.junit.Test;
-import org.junit.runner.RunWith;
-
-import static org.junit.Assert.*;
-
-/**
- * Instrumented test, which will execute on an Android device.
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-@RunWith(AndroidJUnit4.class)
-public class ExampleInstrumentedTest {
-    @Test
-    public void useAppContext() {
-        // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
-        assertEquals("com.lt2333.myapplication", appContext.getPackageName());
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4b31bd77..1929e001 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -11,7 +11,8 @@
         android:theme="@style/Theme.MyApplication">
         <activity
             android:name=".activity.SettingsActivity"
-            android:exported="true">
+            android:exported="true"
+            android:launchMode="singleTop">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER"/>
diff --git a/app/src/main/java/com/lt2333/simplicitytools/activity/SettingsActivity.kt b/app/src/main/java/com/lt2333/simplicitytools/activity/SettingsActivity.kt
index d2bf72de..b09d39cb 100644
--- a/app/src/main/java/com/lt2333/simplicitytools/activity/SettingsActivity.kt
+++ b/app/src/main/java/com/lt2333/simplicitytools/activity/SettingsActivity.kt
@@ -43,7 +43,12 @@ class SettingsActivity : AppCompatActivity() {
         } catch (exception: SecurityException) {
             AlertDialog.Builder(this)
                 .setMessage("您似乎正在使用过时的 LSPosed 版本或 LSPosed 未激活，请更新 LSPosed 或者激活后再试。")
+                .setCancelable(false)
+                .setPositiveButton("确定", DialogInterface.OnClickListener { dialogInterface, i ->
+                    android.os.Process.killProcess(android.os.Process.myPid())
+                })
                 .show()
+
         }
     }
 
diff --git a/app/src/test/java/com/lt2333/simplicitytools/ExampleUnitTest.java b/app/src/test/java/com/lt2333/simplicitytools/ExampleUnitTest.java
deleted file mode 100644
index a511e4f8..00000000
--- a/app/src/test/java/com/lt2333/simplicitytools/ExampleUnitTest.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.lt2333.simplicitytools;
-
-import org.junit.Test;
-
-import static org.junit.Assert.*;
-
-/**
- * Example local unit test, which will execute on the development machine (host).
- *
- * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
- */
-public class ExampleUnitTest {
-    @Test
-    public void addition_isCorrect() {
-        assertEquals(4, 2 + 2);
-    }
-}
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
index 7e1366d9..92704788 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,7 +5,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:7.0.4"
+        classpath 'com.android.tools.build:gradle:7.1.1'
         classpath 'org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.10'
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 9f550eda..f37c82dd 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Sun Feb 13 16:53:34 CST 2022
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME