request permissions

app/src/main/AndroidManifest.xml

@@ -2,11 +2,17 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools">
     <uses-permission android:name="android.permission.INTERNET"/>
-    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/>
+    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
-    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
+        tools:ignore="ProtectedPermissions"></uses-permission>
+    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
+
+    <uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE"
+        tools:ignore="ScopedStorage" />
 
     <application
         android:allowBackup="true"
+        android:requestLegacyExternalStorage="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"
         android:icon="@mipmap/ic_launcher"

app/src/main/java/run/evan/gost/MainActivity.java

@@ -1,12 +1,21 @@
 package run.evan.gost;
 
+import android.Manifest;
 import android.app.AlertDialog;
+import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.content.SharedPreferences;
+import android.content.pm.PackageManager;
 import android.content.res.ColorStateList;
+import android.net.Uri;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.Environment;
 import android.os.Handler;
 import android.os.Message;
+import android.os.PowerManager;
+import android.provider.Settings;
 import android.text.InputType;
 import android.text.method.ScrollingMovementMethod;
 import android.view.View;
@@ -17,11 +26,15 @@ import android.widget.EditText;
 import android.widget.Spinner;
 import android.widget.Toast;
 
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
+import androidx.core.content.ContextCompat;
 
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.lang.ref.WeakReference;
+import java.security.Permissions;
 import java.util.Map;
 
 public class MainActivity extends AppCompatActivity {
@@ -90,12 +103,32 @@ public class MainActivity extends AppCompatActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        appPreferences = getSharedPreferences("app", MODE_PRIVATE);
 
+        if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
+                || ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED
+                || ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS) != PackageManager.PERMISSION_GRANTED
+        ) {
+            ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.MOUNT_UNMOUNT_FILESYSTEMS}, 10);
+        }
+        // android 11  且 不是已经被拒绝
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R && !appPreferences.getBoolean("refuse", false)) {
+            // 先判断有没有权限
+            if (!Environment.isExternalStorageManager()) {
+                Intent intent = new Intent(Settings.ACTION_MANAGE_APP_ALL_FILES_ACCESS_PERMISSION);
+                intent.setData(Uri.parse("package:" + getPackageName()));
+                startActivityForResult(intent, 1024);
+            }
+        }
+
+
+        if (!isIgnoringBatteryOptimizations()) {
+            requestIgnoreBatteryOptimizations();
+        }
         textView1 = findViewById(R.id.textView);
         textView1.setMovementMethod(ScrollingMovementMethod.getInstance());
         configEditText = findViewById(R.id.configEditText);
         configPreferences = getSharedPreferences("config", MODE_PRIVATE);
-        appPreferences = getSharedPreferences("app", MODE_PRIVATE);
 
 
         sp = findViewById(R.id.spinner);
@@ -290,6 +323,40 @@ public class MainActivity extends AppCompatActivity {
 
     }
 
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private void requestIgnoreBatteryOptimizations() {
+        try {
+            Intent intent = new Intent(Settings.ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS);
+            intent.setData(Uri.parse("package:" + getPackageName()));
+            startActivity(intent);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @RequiresApi(api = Build.VERSION_CODES.M)
+    private boolean isIgnoringBatteryOptimizations() {
+        boolean isIgnoring = false;
+        PowerManager powerManager = (PowerManager) getSystemService(Context.POWER_SERVICE);
+        if (powerManager != null) {
+            isIgnoring = powerManager.isIgnoringBatteryOptimizations(getPackageName());
+        }
+        return isIgnoring;
+    }
+
+
+    // 带回授权结果
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == 1024 && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            // 检查是否有权限
+            if (!Environment.isExternalStorageManager()) {
+                appPreferences.edit().putBoolean("refuse", true).apply();
+            }
+        }
+    }
+
     private void reloadConfig() {
         starAdapter.clear();
         Map<String, ?> all = configPreferences.getAll();