Solve Android security exposed app error

android/gradle/wrapper/gradle-wrapper.properties

-#Sat Aug 12 07:48:35 CEST 2017
+#Fri Jun 01 10:33:07 BRT 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip

android/src/main/AndroidManifest.xml

 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="com.RNFetchBlob">
 
-    <application
-        android:label="@string/app_name">
+    <!-- Required to access Google Play Licensing -->
+    <uses-permission android:name="com.android.vending.CHECK_LICENSE" />
 
+    <!-- Required to download files from Google Play -->
+    <uses-permission android:name="android.permission.INTERNET" />
+
+    <!-- Required to keep CPU alive while downloading files
+        (NOT to keep screen awake) -->
+    <uses-permission android:name="android.permission.WAKE_LOCK" />
+
+    <!-- Required to poll the state of the network connection
+        and respond to changes -->
+    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
+
+    <!-- Required to check whether Wi-Fi is enabled -->
+    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
+
+    <!-- Required to read and write the expansion files on shared storage -->
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
+
+    <application android:label="@string/app_name">
+
+        <provider
+            android:name="android.support.v4.content.FileProvider"
+            android:authorities="${applicationId}.provider"
+            android:exported="false"
+            android:grantUriPermissions="true">
+            <meta-data
+                android:name="android.support.FILE_PROVIDER_PATHS"
+                android:resource="@xml/provider_paths" />
+        </provider>
     </application>
 
-</manifest>
+</manifest>

android/src/main/java/com/RNFetchBlob/RNFetchBlob.java

 import android.app.Activity;
 import android.app.DownloadManager;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.net.Uri;
+import android.os.Build;
+import android.support.v4.content.FileProvider;
 import android.util.SparseArray;
 
 import com.facebook.react.bridge.ActivityEventListener;
 import com.facebook.react.modules.network.ForwardingCookieHandler;
 import com.facebook.react.modules.network.CookieJarContainer;
 import com.facebook.react.modules.network.OkHttpClientProvider;
+import com.squareup.okhttp.OkHttpClient;
+
 import okhttp3.OkHttpClient;
 import okhttp3.JavaNetCookieJar;
 
+import java.io.File;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.concurrent.LinkedBlockingQueue;
     @ReactMethod
     public void actionViewIntent(String path, String mime, final Promise promise) {
         try {
-            Intent intent= new Intent(Intent.ACTION_VIEW)
-                    .setDataAndType(Uri.parse("file://" + path), mime);
-            intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-            this.getReactApplicationContext().startActivity(intent);
+            Uri uriForFile = FileProvider.getUriForFile(getCurrentActivity(),
+                    this.getReactApplicationContext().getPackageName() + ".provider", new File(path));
+
+            if (Build.VERSION.SDK_INT >= 24) {
+                // Create the intent with data and type
+                Intent intent = new Intent(Intent.ACTION_VIEW)
+                        .setDataAndType(uriForFile, mime);
+
+                // Set flag to give temporary permission to external app to use FileProvider
+                intent.setFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
+
+                // Validate that the device can open the file
+                PackageManager pm = getCurrentActivity().getPackageManager();
+                if (intent.resolveActivity(pm) != null) {
+                    this.getReactApplicationContext().startActivity(intent);
+                }
+
+            } else {
+                Intent intent = new Intent(Intent.ACTION_VIEW)
+                        .setDataAndType(Uri.parse("file://" + path), mime).setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+                this.getReactApplicationContext().startActivity(intent);
+            }
             ActionViewVisible = true;
 
             final LifecycleEventListener listener = new LifecycleEventListener() {

android/src/main/res/xml/provider_paths.xml

+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external-path
+        name="external_files"
+        path="." />
+    <files-path
+        name="files-path"
+        path="." /> <!-- Used to access into application data files -->
+</paths>