feat: 安装权限不足时自动跳转系统设置页面

packages/client-android/android/app/src/main/java/dev/yuzu/gca/MainActivity.kt

@@ -4,7 +4,9 @@ import android.app.PendingIntent
 import android.content.Intent
 import android.content.pm.PackageInstaller
 import android.graphics.Color
+import android.net.Uri
 import android.os.Bundle
+import android.provider.Settings
 import android.widget.Button
 import android.widget.LinearLayout
 import android.widget.ScrollView
@@ -209,7 +211,12 @@ class MainActivity : AppCompatActivity() {
 
     private fun installApk(apkFile: File) {
         if (!packageManager.canRequestPackageInstalls()) {
-            throw SecurityException("需要允许安装未知应用权限")
+            val intent = Intent(Settings.ACTION_MANAGE_UNKNOWN_APP_SOURCES).apply {
+                data = Uri.parse("package:$packageName")
+                addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            }
+            startActivity(intent)
+            throw SecurityException("请开启安装未知应用权限后重试")
         }
         val packageInstaller = packageManager.packageInstaller
         val params = PackageInstaller.SessionParams(PackageInstaller.SessionParams.MODE_FULL_INSTALL)