解决安卓11的权限问题

solve permission problems on Android 11
w2016561536 · Nov 27, 2021 · fda5a28 · fda5a28
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Showing 7 changed files with 33 additions and 22 deletions.
diff --git a/README.md b/README.md
@@ -36,7 +36,7 @@ Q1. 大多数情况下,替换前置摄像头的视频需要水平翻转并右旋
 
 
 Q2. 画面黑屏，相机启动失败？  
-A2. 目前有些应用并不能成功替换（特别是系统相机）。或者是因为视频路径不对。
+A2. 目前有些应用并不能成功替换（特别是系统相机）。或者是因为视频路径不对（是否创建了两级Camera1目录，如`./DCIM/Camera1/Camera1/virtual.mp4`，但只需要一级目录）。
 
 
 Q3. 画面花屏？  

diff --git a/README_en.md b/README_en.md
@@ -34,7 +34,7 @@ Q1. The problems of front camera?
 A1. In most cases , the video for replacing front camera need to be flipped horizontally and rotated right 90 degrees. The video's resolution **after being processed** need to same with that in toast message.  But in some came, it doesn't need to make adjustment, so you need to judge it according to situation.
 
 Q2. Black screen ? Open camera fail ?  
-A2. Till now ,there are a few apps that can't be hooked, especially the system camera. Or it caused by wrong `Camera1` directory.
+A2. Till now ,there are a few apps that can't be hooked, especially the system camera. Or it caused by wrong `Camera1` directory（Whether two levels of Camera1 directory were created, like `./DCIM/Camera1/Camera1/virtual.mp4`, only one level is needed）.
 
 Q3. Blurred screen?  
 A3. The resolution of video is wrong.

diff --git a/README_tc.md b/README_tc.md
@@ -34,7 +34,7 @@ A1. 前置攝影機方向問題？
 Q1.大多數情况下，替換前置攝影機的影片需要水准翻轉並右旋90度，並且影片***處理後***的解析度應與氣泡消息內解析度相同。 但有時這並不需要，具體請根據實際情況判斷。
 
 Q2. 畫面黑屏，相機啟動失敗？  
-A2. 現時有些應用並不能成功替換（特別是系統相機）。 或者是因為影片路徑不對。
+A2. 現時有些應用並不能成功替換（特別是系統相機）。 或者是因為影片路徑不對(是否創建了兩級Camera1目錄，如`./DCIM/Camera1/Camera1/virtual.mp4`，但只需要一級目錄)。
 
 Q3. 畫面花屏？  
 A3. 影片解析度不對。

diff --git a/app/build.gradle b/app/build.gradle
@@ -8,9 +8,9 @@ android {
     defaultConfig {
         applicationId "com.example.vcam"
         minSdk 21
-        targetSdk 28
-        versionCode 18
-        versionName "3.5"
+        targetSdk 29
+        versionCode 19
+        versionName "3.6"
 
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }

diff --git a/app/release/app-release.apk b/app/release/app-release.apk
diff --git a/app/release/output-metadata.json b/app/release/output-metadata.json
@@ -11,8 +11,8 @@
       "type": "SINGLE",
       "filters": [],
       "attributes": [],
-      "versionCode": 18,
-      "versionName": "3.5",
+      "versionCode": 19,
+      "versionName": "3.6",
       "outputFile": "app-release.apk"
     }
   ],

diff --git a/app/src/main/java/com/example/vcam/HookMain.java b/app/src/main/java/com/example/vcam/HookMain.java
@@ -275,27 +275,39 @@ protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                         XposedBridge.log("【VCAM】"+ee.toString());
                     }
                     if (toast_content != null){
+                        int auth_statue = 0;
                         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
-                            int auth_statue = PackageManager.PERMISSION_DENIED;
                             try {
-                                auth_statue = toast_content.checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE);
-                            }catch (Exception eee){
+                                auth_statue += (toast_content.checkSelfPermission(Manifest.permission.READ_EXTERNAL_STORAGE) + 1);
+                            } catch (Exception ignored) {
 
                             }
                             try {
                                 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
-                                    auth_statue = toast_content.checkSelfPermission(Manifest.permission.MANAGE_EXTERNAL_STORAGE);
+                                    auth_statue += (toast_content.checkSelfPermission(Manifest.permission.MANAGE_EXTERNAL_STORAGE) + 1);
                                 }
-                            }catch (Exception eee){
+                            } catch (Exception ignored) {
 
                             }
-                            if ( auth_statue != PackageManager.PERMISSION_GRANTED){
-                                File shown_file = new File(Environment.getExternalStorageDirectory()+"/Android/data/"+lpparam.packageName+"/files/Camera1/" + "has_shown.jpg");
+                        }else {
+                            File DCIM_dic = new File(Environment.getExternalStorageDirectory() + "/DCIM/");
+                            if ((!DCIM_dic.canRead()) && auth_statue < 1){
+                                auth_statue = -1;
+                            }
+                        }
+                            if ( auth_statue < 1 ){
+                                File shown_file = new File(toast_content.getExternalFilesDir(null).getAbsolutePath() + "/Camera1/");
+                                if ((!shown_file.isDirectory()) && shown_file.exists()){
+                                    shown_file.delete();
+                                }
+                                if (!shown_file.exists()){
+                                    shown_file.mkdir();
+                                }
+                                shown_file = new File(toast_content.getExternalFilesDir(null).getAbsolutePath() + "/Camera1/"+ "has_shown");
                                 if (!(lpparam.packageName.equals(BuildConfig.APPLICATION_ID) || shown_file.exists())) {
-                                    Toast.makeText(toast_content, "未授予读取本地目录权限，请检查权限\nCamera1目前重定向为 " + Environment.getExternalStorageDirectory() + "/Android/data/" + lpparam.packageName + "/files/Camera1/", Toast.LENGTH_LONG).show();
-                                    String path = Environment.getExternalStorageDirectory()+"/Android/data/"+lpparam.packageName+"/files/Camera1/" ;
+                                    Toast.makeText(toast_content, "未授予读取本地目录权限，请检查权限\nCamera1目前重定向为 " + toast_content.getExternalFilesDir(null).getAbsolutePath() + "/Camera1/", Toast.LENGTH_LONG).show();
                                     try {
-                                        FileOutputStream fos = new FileOutputStream(path+ "has_shown.jpg");
+                                        FileOutputStream fos = new FileOutputStream(toast_content.getExternalFilesDir(null).getAbsolutePath() + "/Camera1/" + "has_shown");
                                         String info = "shown";
                                         fos.write(info.getBytes());
                                         fos.flush();
@@ -304,13 +316,12 @@ protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                                         XposedBridge.log("【VCAM】"+ e.toString());
                                     }
                                 }
-                                video_path = Environment.getExternalStorageDirectory()+"/Android/data/"+lpparam.packageName+"/files/Camera1/";
+                                video_path = toast_content.getExternalFilesDir(null).getAbsolutePath() + "/Camera1/";
                             }else {
                                 video_path = Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera1/";
                             }
-                        }else {
-                            video_path  = Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera1/";
-                        }
+                    }else {
+                        video_path = Environment.getExternalStorageDirectory().getPath() + "/DCIM/Camera1/";
                     }
                 }
             }