Android: Added build gradle and FileProvider

android/AndroidManifest.tmp

@@ -76,6 +76,14 @@
 
     <!-- For adding service(s) please check: https://wiki.qt.io/AndroidServices -->
 
+    <provider android:name="android.support.v4.content.FileProvider"
+        android:authorities="${applicationId}.fileprovider"
+        android:grantUriPermissions="true"
+        android:exported="false">
+        <meta-data android:name="android.support.FILE_PROVIDER_PATHS"
+                   android:resource="@xml/filepaths"/>
+    </provider>
+
     </application>
 
     <uses-sdk android:minSdkVersion="16" android:targetSdkVersion="26"/>

android/build.gradle

+buildscript {
+    repositories {
+        jcenter()
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:2.2.3'
+    }
+}
+
+allprojects {
+    repositories {
+        jcenter()
+    }
+}
+
+apply plugin: 'com.android.application'
+
+dependencies {
+    compile fileTree(dir: 'libs', include: ['*.jar'])
+    compile'com.android.support:support-v4:25.3.1'
+}
+
+android {
+    /*******************************************************
+     * The following variables:
+     * - androidBuildToolsVersion,
+     * - androidCompileSdkVersion
+     * - qt5AndroidDir - holds the path to qt android files
+     *                   needed to build any Qt application
+     *                   on Android.
+     *
+     * are defined in gradle.properties file. This file is
+     * updated by QtCreator and androiddeployqt tools.
+     * Changing them manually might break the compilation!
+     *******************************************************/
+
+    compileSdkVersion androidCompileSdkVersion.toInteger()
+
+    buildToolsVersion androidBuildToolsVersion
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = [qt5AndroidDir + '/src', 'src', 'java']
+            aidl.srcDirs = [qt5AndroidDir + '/src', 'src', 'aidl']
+            res.srcDirs = [qt5AndroidDir + '/res', 'res']
+            resources.srcDirs = ['src']
+            renderscript.srcDirs = ['src']
+            assets.srcDirs = ['assets']
+            jniLibs.srcDirs = ['libs']
+       }
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}

android/res/xml/filepaths.xml

+<?xml version="1.0" encoding="utf-8"?>
+<paths xmlns:android="http://schemas.android.com/apk/res/android">
+    <external-path name="external_files" path="Datovka/Temp/"/>
+</paths>
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