Onboarding [Part 1]

this Commit adds a Onboarding Activity, it is currently not usefull or fully working, see #36

app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt

@@ -97,6 +97,9 @@ class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelecte
         // open the activeFragment, default is the HomeFragment
         fragmentTransaction.replace(R.id.fragment_container, activeFragment)
         fragmentTransaction.commit()
+
+        //println("starting Onboarding")
+        //startActivity(Intent(this, OnboardingActivity::class.java))
     }
 
     override fun onNewIntent(intent: Intent) {

app/src/main/java/org/mosad/seil0/projectlaogai/OnboardingActivity.kt

@@ -0,0 +1,99 @@
+package org.mosad.seil0.projectlaogai
+
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.text.Html
+import android.view.View
+import android.widget.LinearLayout
+import android.widget.TextView
+import androidx.appcompat.app.AppCompatActivity
+import androidx.viewpager.widget.ViewPager
+import kotlinx.android.synthetic.main.activity_onboarding.*
+import org.mosad.seil0.projectlaogai.fragments.SettingsFragment
+import org.mosad.seil0.projectlaogai.onboarding.ViewPagerAdapter
+
+
+class OnboardingActivity : AppCompatActivity() {
+
+    companion object {
+        val layouts = intArrayOf(R.layout.fragment_on_welcome, R.layout.fragment_on_course) //, R.layout.fragment_on_login)
+    }
+    private lateinit var viewPager: ViewPager
+    private lateinit var viewPagerAdapter: ViewPagerAdapter
+    private lateinit var linLayoutDots: LinearLayout
+    private lateinit var dots: Array<TextView>
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_onboarding)
+
+        viewPager = findViewById(R.id.viewPager)
+        linLayoutDots = findViewById(R.id.linLayout_Dots)
+
+        addBottomDots(0)
+
+        viewPagerAdapter = ViewPagerAdapter(this)
+        viewPager.adapter = viewPagerAdapter
+        viewPager.addOnPageChangeListener(viewPagerPageChangeListener)
+
+        btn_Skip.visibility = View.GONE // without the the skip button is visible
+    }
+
+    fun btnNextClick(v: View) {
+        if (viewPager.currentItem < layouts.size - 1) {
+            viewPager.currentItem++
+        } else {
+            launchHomeScreen()
+        }
+    }
+
+    fun btnSkipClick(v: View) {
+        launchHomeScreen()
+    }
+
+    fun btnSelectCourseClick(v: View) {
+        SettingsFragment().selectCourse(this) // TODO
+    }
+
+    private fun addBottomDots(currentPage: Int) {
+        dots = Array(layouts.size) { TextView(this) }
+        linLayoutDots.removeAllViews()
+
+        dots.forEach {
+            it.text = Html.fromHtml("&#8226;")
+            it.textSize = 35f
+            it.setTextColor(Color.parseColor("#cccccc"))
+            linLayoutDots.addView(it)
+        }
+
+        if (dots.isNotEmpty())
+            dots[currentPage].setTextColor(Color.parseColor("#000000"))
+    }
+
+    private fun launchHomeScreen() {
+        startActivity(Intent(this, MainActivity::class.java))
+        //finish()
+    }
+
+    private var viewPagerPageChangeListener: ViewPager.OnPageChangeListener = object : ViewPager.OnPageChangeListener {
+
+        override fun onPageSelected(position: Int) {
+            addBottomDots(position)
+            // changing the next button text
+            if (position == layouts.size - 1) {
+                btn_Next.text = getString(R.string.start)
+                btn_Next.visibility = View.VISIBLE
+                btn_Skip.visibility = View.GONE
+            } else {
+                btn_Next.visibility = View.GONE
+                btn_Skip.visibility = View.GONE
+            }
+        }
+
+        override fun onPageScrolled(arg0: Int, arg1: Float, arg2: Int) {}
+        override fun onPageScrollStateChanged(arg0: Int) {}
+    }
+
+
+}

app/src/main/java/org/mosad/seil0/projectlaogai/fragments/SettingsFragment.kt

@@ -171,7 +171,9 @@ class SettingsFragment : Fragment() {
                 resources.getString(R.string.themeDark),
                 resources.getString(R.string.themeBlack)
             )
-            MaterialDialog(context!!).show {
+            MaterialDialog(context!!)
+                .title(R.string.theme)
+                .show {
                 listItemsSingleChoice(items = themes) { _, index, _ ->
                     Aesthetic.config {
                         when (index) {

app/src/main/java/org/mosad/seil0/projectlaogai/onboarding/ViewPagerAdapter.kt

@@ -0,0 +1,59 @@
+/**
+ * ProjectLaogai
+ *
+ * Copyright 2019-2020  <seil0@mosad.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ */
+
+package org.mosad.seil0.projectlaogai.onboarding
+
+import android.content.Context
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.viewpager.widget.PagerAdapter
+import org.mosad.seil0.projectlaogai.OnboardingActivity.Companion.layouts
+
+/**
+ * TODO
+ */
+class ViewPagerAdapter(cont: Context) : PagerAdapter() {
+
+    private val context = cont
+
+    override fun isViewFromObject(view: View, `object`: Any): Boolean {
+        return view === `object`
+    }
+
+    override fun getCount(): Int {
+        return layouts.size
+    }
+
+    override fun instantiateItem(container: ViewGroup, position: Int): Any {
+        val view = LayoutInflater.from(context).inflate(layouts[position], container, false)
+        container.addView(view)
+
+        return view
+    }
+
+    override fun destroyItem(container: ViewGroup, position: Int, `object`: Any) {
+        val view = `object` as View
+        container.removeView(view)
+    }
+
+}