#KioskMode Intial Commit.

app/.gitignore

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+/build

app/build.gradle

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+apply plugin: 'com.android.application'
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.3"
+
+    defaultConfig {
+        applicationId "com.android.kisokmode"
+        minSdkVersion 21
+        targetSdkVersion 29
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.core:core-ktx:1.2.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+}

app/proguard-rules.pro

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+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/com/android/kioskmode/ExampleInstrumentedTest.kt

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+package com.android.kioskmode
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.android.kisokmode", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="com.android.kioskmode">
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/AppTheme">
+        <activity android:name="com.android.kioskmode.MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <receiver
+            android:name="com.android.kioskmode.AdminReceiver"
+            android:label="@string/app_name"
+            android:permission="android.permission.BIND_DEVICE_ADMIN">
+            <meta-data
+                android:name="android.app.device_admin"
+                android:resource="@xml/device_admin" />
+
+            <intent-filter>
+                <action android:name="android.app.action.DEVICE_ADMIN_ENABLED" />
+            </intent-filter>
+        </receiver>
+
+    </application>
+
+</manifest>

app/src/main/java/com/android/kioskmode/AdminReceiver.kt

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+package com.android.kioskmode
+
+import android.app.admin.DeviceAdminReceiver
+import android.content.ComponentName
+import android.content.Context
+import android.util.Log
+
+class AdminReceiver :DeviceAdminReceiver(){
+
+    companion object{
+        fun getComponentName(context:Context):ComponentName{
+            Log.d("Component Name",ComponentName(context.applicationContext,
+                AdminReceiver::class.java).toString())
+            return ComponentName(context.applicationContext,
+                AdminReceiver::class.java)
+        }
+    }
+
+}

app/src/main/java/com/android/kioskmode/MainActivity.kt

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+package com.android.kioskmode
+
+
+import android.app.admin.DevicePolicyManager
+import android.content.Context
+import android.os.Bundle
+import android.view.View
+import android.widget.Button
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+
+
+class MainActivity : AppCompatActivity() {
+
+    lateinit var mButton: Button
+
+    private var mDecorView: View? = null
+    private lateinit var mDpm: DevicePolicyManager
+    private var mIsKioskEnabled = false
+
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+
+        mButton= findViewById<Button>(R.id.button_toggle_kiosk)
+
+        mButton.setOnClickListener {
+            enableKioskMode(true)
+        }
+
+        val deviceAdmin = AdminReceiver.getComponentName(this)
+        mDpm = getSystemService(Context.DEVICE_POLICY_SERVICE) as DevicePolicyManager
+        if (!mDpm.isAdminActive(deviceAdmin)) {
+            Toast.makeText(this, getString(R.string.not_device_admin), Toast.LENGTH_SHORT).show()
+        }
+
+        if (mDpm.isDeviceOwnerApp(packageName)) {
+            mDpm.setLockTaskPackages(deviceAdmin, arrayOf(packageName))
+        } else {
+            Toast.makeText(this, getString(R.string.not_device_owner), Toast.LENGTH_SHORT).show()
+        }
+
+        mDecorView = window.decorView
+
+
+    }
+
+    override fun onResume() {
+        super.onResume()
+        hideSystemUI()
+    }
+
+    fun enableKioskMode(enabled: Boolean){
+
+        try{
+            if (enabled) {
+                if (mDpm.isLockTaskPermitted(this.packageName)) {
+                    startLockTask()
+                    mIsKioskEnabled = true
+                    mButton.text = getString(R.string.exit_kiosk_mode)
+                } else {
+                    Toast.makeText(this, getString(R.string.kiosk_not_permitted), Toast.LENGTH_SHORT).show()
+                }
+            } else {
+                stopLockTask()
+                mIsKioskEnabled = false
+                mButton.text = getString(R.string.enter_kiosk_mode)
+            }
+        }catch (e:Exception){
+
+        }
+
+    }
+
+    fun hideSystemUI()
+    {
+        // Set the IMMERSIVE flag.
+        // Set the content to appear under the system bars so that the content
+        // doesn't resize when the system bars hide and show.
+        mDecorView!!.systemUiVisibility = (View.SYSTEM_UI_FLAG_LAYOUT_STABLE
+                or View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION
+                or View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
+                or View.SYSTEM_UI_FLAG_HIDE_NAVIGATION // hide nav bar
+                or View.SYSTEM_UI_FLAG_FULLSCREEN // hide status bar
+                or View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY)
+    }
+
+}

app/src/main/res/drawable-v24/ic_launcher_foreground.xml

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+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>