Add support for TaiChi

Author: tiann

app/src/main/AndroidManifest.xml

@@ -49,6 +49,7 @@
 
         <provider
             android:name=".VXP"
+            android:exported="true"
             android:authorities="eu.faircode.xlua.vxp"
             android:process=":vxp" />
     </application>

app/src/main/java/eu/faircode/xlua/Util.java

@@ -19,6 +19,7 @@
 
 package eu.faircode.xlua;
 
+import android.annotation.SuppressLint;
 import android.app.Dialog;
 import android.app.Notification;
 import android.app.NotificationChannel;
@@ -28,23 +29,25 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.res.Resources;
+import android.net.Uri;
 import android.os.Build;
+import android.os.Bundle;
 import android.os.Process;
 import android.os.UserHandle;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.TypedValue;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Method;
-import java.security.MessageDigest;
-
 import androidx.appcompat.app.AlertDialog;
 import androidx.lifecycle.Lifecycle;
 import androidx.lifecycle.LifecycleObserver;
 import androidx.lifecycle.LifecycleOwner;
 import androidx.lifecycle.OnLifecycleEvent;
 
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Method;
+import java.security.MessageDigest;
+
 class Util {
     private final static String TAG = "XLua.Util";
 
@@ -167,8 +170,36 @@ static void cancelAsUser(Context context, String tag, int id, int userid) throws
         Log.i(TAG, "Cancelled " + tag + ":" + id + " as " + userid);
     }
 
+    private static Boolean isExp;
+    private static boolean isExpModuleActive() {
+        if (isExp != null) {
+            return isExp;
+        }
+        try {
+            @SuppressLint("PrivateApi") Context context = (Context) Class.forName("android.app.ActivityThread")
+                    .getDeclaredMethod("currentApplication", new Class[0]).invoke(null, new Object[0]);
+            if (context == null) {
+                return isExp = false;
+            }
+            try {
+                Bundle call = context.getContentResolver().call(Uri.parse("content://me.weishu.exposed.CP/"), "active", null, null);
+                if (call == null) {
+                    return isExp = false;
+                }
+                isExp = call.getBoolean("active", false);
+                return isExp;
+            } catch (Throwable th) {
+                return isExp = false;
+            }
+        } catch (Throwable th2) {
+            return isExp = false;
+        }
+    }
+
     static boolean isVirtualXposed() {
-        return !TextUtils.isEmpty(System.getProperty("vxp"));
+        return !TextUtils.isEmpty(System.getProperty("vxp"))
+                || !TextUtils.isEmpty(System.getProperty("exp"))
+                || isExpModuleActive();
     }
 
     public static int resolveColor(Context context, int attr) {

app/src/main/java/eu/faircode/xlua/XProvider.java

@@ -48,6 +48,7 @@
 import java.io.File;
 import java.lang.reflect.Method;
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.Comparator;
 import java.util.HashMap;
@@ -332,6 +333,40 @@ public int compare(XHook h1, XHook h2) {
         return result;
     }
 
+    private static List<String> getExpApps(Context context) {
+        try {
+            Bundle call = context.getContentResolver().call(Uri.parse("content://me.weishu.exposed.CP/"), "apps", null, null);
+            if (call == null) {
+                return Collections.emptyList();
+            }
+            ArrayList<String> stringArrayList = call.getStringArrayList("apps");
+            if (stringArrayList == null) {
+                return Collections.emptyList();
+            }
+            return stringArrayList;
+        } catch (Throwable th) {
+            return Collections.emptyList();
+        }
+    }
+
+    private static Collection<ApplicationInfo> getApplications(Context context) {
+        List<String> expApps = getExpApps(context);
+        PackageManager packageManager = context.getPackageManager();
+        if (expApps.isEmpty()) {
+            return packageManager.getInstalledApplications(0);
+        } else {
+            List<ApplicationInfo> apps = new ArrayList<>();
+            for (String expApp : expApps) {
+                try {
+                    apps.add(packageManager.getApplicationInfo(expApp, 0));
+                } catch (PackageManager.NameNotFoundException e) {
+                    e.printStackTrace();
+                }
+            }
+            return apps;
+        }
+    }
+
     private static Cursor getApps(Context context, String[] selection, boolean marshall) throws Throwable {
         Map<String, XApp> apps = new HashMap<>();
 
@@ -342,8 +377,9 @@ private static Cursor getApps(Context context, String[] selection, boolean marsh
         long ident = Binder.clearCallingIdentity();
         try {
             // Get installed apps for current user
-            PackageManager pm = Util.createContextForUser(context, userid).getPackageManager();
-            for (ApplicationInfo ai : pm.getInstalledApplications(0))
+            Context contextForUser = Util.createContextForUser(context, userid);
+            PackageManager pm = contextForUser.getPackageManager();
+            for (ApplicationInfo ai : getApplications(contextForUser))
                 if (!ai.packageName.startsWith(BuildConfig.APPLICATION_ID))
                     try {
                         int esetting = pm.getApplicationEnabledSetting(ai.packageName);