add the actual fingerprint check

commons/src/main/kotlin/com/simplemobiletools/commons/adapters/PasswordTypesAdapter.kt

@@ -2,6 +2,7 @@ package com.simplemobiletools.commons.adapters
 
 import android.content.Context
 import android.support.v4.view.PagerAdapter
+import android.util.SparseArray
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -11,15 +12,18 @@ import com.simplemobiletools.commons.interfaces.HashListener
 import com.simplemobiletools.commons.interfaces.SecurityTab
 
 class PasswordTypesAdapter(val context: Context, val requiredHash: String, val hashListener: HashListener) : PagerAdapter() {
+    private val tabs = SparseArray<SecurityTab>()
 
     override fun instantiateItem(container: ViewGroup, position: Int): Any {
         val view = LayoutInflater.from(context).inflate(layoutSelection(position), container, false)
         container.addView(view)
+        tabs.put(position, view as SecurityTab)
         (view as SecurityTab).initTab(requiredHash, hashListener)
         return view
     }
 
     override fun destroyItem(container: ViewGroup, position: Int, item: Any) {
+        tabs.remove(position)
         container.removeView(item as View)
     }
 
@@ -33,4 +37,8 @@ class PasswordTypesAdapter(val context: Context, val requiredHash: String, val h
         2 -> R.layout.tab_fingerprint
         else -> throw RuntimeException("Only 3 tabs allowed")
     }
+
+    fun isTabVisible(position: Int, isVisible: Boolean) {
+        tabs[position]?.visibilityChanged(isVisible)
+    }
 }

commons/src/main/kotlin/com/simplemobiletools/commons/dialogs/SecurityDialog.kt

@@ -4,6 +4,7 @@ import android.support.design.widget.TabLayout
 import android.support.v4.view.ViewPager
 import android.support.v7.app.AlertDialog
 import android.view.LayoutInflater
+import android.view.ViewTreeObserver
 import com.simplemobiletools.commons.R
 import com.simplemobiletools.commons.activities.BaseSimpleActivity
 import com.simplemobiletools.commons.adapters.PasswordTypesAdapter
@@ -22,12 +23,15 @@ import kotlinx.android.synthetic.main.dialog_security.view.*
 class SecurityDialog(val activity: BaseSimpleActivity, val requiredHash: String, val showTabIndex: Int, val callback: (hash: String, type: Int) -> Unit) : HashListener {
     var dialog: AlertDialog? = null
     val view = LayoutInflater.from(activity).inflate(R.layout.dialog_security, null)
+    lateinit var tabsAdapter: PasswordTypesAdapter
+    lateinit var viewPager: MyDialogViewPager
 
     init {
         view.apply {
-            val viewPager = findViewById(R.id.dialog_tab_view_pager) as MyDialogViewPager
+            viewPager = findViewById(R.id.dialog_tab_view_pager) as MyDialogViewPager
             viewPager.offscreenPageLimit = 2
-            viewPager.adapter = PasswordTypesAdapter(context, requiredHash, this@SecurityDialog)
+            tabsAdapter = PasswordTypesAdapter(context, requiredHash, this@SecurityDialog)
+            viewPager.adapter = tabsAdapter
             viewPager.addOnPageChangeListener(object : ViewPager.OnPageChangeListener {
                 override fun onPageScrollStateChanged(state: Int) {
                 }
@@ -40,6 +44,13 @@ class SecurityDialog(val activity: BaseSimpleActivity, val requiredHash: String,
                 }
             })
 
+            viewPager.viewTreeObserver.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener {
+                override fun onGlobalLayout() {
+                    viewPager.viewTreeObserver.removeOnGlobalLayoutListener(this)
+                    updateTabVisibility()
+                }
+            })
+
             if (showTabIndex == SHOW_ALL_TABS) {
                 val textColor = context.baseConfig.textColor
 
@@ -61,6 +72,8 @@ class SecurityDialog(val activity: BaseSimpleActivity, val requiredHash: String,
                             tab.text.toString().equals(resources.getString(R.string.pin), true) -> viewPager.currentItem = PROTECTION_PIN
                             else -> viewPager.currentItem = PROTECTION_FINGERPRINT
                         }
+
+                        updateTabVisibility()
                     }
                 })
             } else {
@@ -81,4 +94,10 @@ class SecurityDialog(val activity: BaseSimpleActivity, val requiredHash: String,
         callback(hash, type)
         dialog!!.dismiss()
     }
+
+    private fun updateTabVisibility() {
+        for (i in 0..2) {
+            tabsAdapter.isTabVisible(i, viewPager.currentItem == i)
+        }
+    }
 }

commons/src/main/kotlin/com/simplemobiletools/commons/helpers/Constants.kt

@@ -60,3 +60,4 @@ val PROTECTION_FINGERPRINT = 2
 val SHOW_ALL_TABS = -1
 val SHOW_PATTERN = 0
 val SHOW_PIN = 1
+val SHOW_FINGERPRINT = 2

commons/src/main/kotlin/com/simplemobiletools/commons/interfaces/SecurityTab.kt

@@ -2,4 +2,6 @@ package com.simplemobiletools.commons.interfaces
 
 interface SecurityTab {
     fun initTab(requiredHash: String, listener: HashListener)
+
+    fun visibilityChanged(isVisible: Boolean)
 }

commons/src/main/kotlin/com/simplemobiletools/commons/views/FingerprintTab.kt

@@ -10,35 +10,38 @@ import com.github.ajalt.reprint.core.AuthenticationListener
 import com.github.ajalt.reprint.core.Reprint
 import com.simplemobiletools.commons.extensions.baseConfig
 import com.simplemobiletools.commons.extensions.updateTextColors
+import com.simplemobiletools.commons.helpers.PROTECTION_FINGERPRINT
 import com.simplemobiletools.commons.interfaces.HashListener
 import com.simplemobiletools.commons.interfaces.SecurityTab
 import kotlinx.android.synthetic.main.tab_fingerprint.view.*
 
 class FingerprintTab(context: Context, attrs: AttributeSet) : RelativeLayout(context, attrs), SecurityTab {
-    private var hash = ""
-    private var requiredHash = ""
     lateinit var hashListener: HashListener
 
     override fun onFinishInflate() {
         super.onFinishInflate()
         val textColor = context.baseConfig.textColor
         context.updateTextColors(fingerprint_lock_holder)
-        finterprint_image.colorFilter = PorterDuffColorFilter(textColor, PorterDuff.Mode.SRC_IN)
+        fingerprint_image.colorFilter = PorterDuffColorFilter(textColor, PorterDuff.Mode.SRC_IN)
+    }
 
+    override fun initTab(requiredHash: String, listener: HashListener) {
+        hashListener = listener
+    }
+
+    override fun visibilityChanged(isVisible: Boolean) {
+        if (isVisible) {
             Reprint.authenticate(object : AuthenticationListener {
                 override fun onSuccess(moduleTag: Int) {
-
+                    hashListener.receivedHash("", PROTECTION_FINGERPRINT)
                 }
 
                 override fun onFailure(failureReason: AuthenticationFailureReason, fatal: Boolean, errorMessage: CharSequence?, moduleTag: Int, errorCode: Int) {
 
                 }
             })
+        } else {
+            Reprint.cancelAuthentication()
         }
-
-    override fun initTab(requiredHash: String, listener: HashListener) {
-        this.requiredHash = requiredHash
-        hash = requiredHash
-        hashListener = listener
     }
 }

commons/src/main/kotlin/com/simplemobiletools/commons/views/PatternTab.kt

@@ -32,11 +32,9 @@ class PatternTab(context: Context, attrs: AttributeSet) : RelativeLayout(context
                 receivedHash(PatternLockUtils.patternToSha1(pattern_lock_view, pattern))
             }
 
-            override fun onCleared() {
+            override fun onCleared() {}
-            }
 
-            override fun onStarted() {
+            override fun onStarted() {}
-            }
 
             override fun onProgress(progressPattern: MutableList<PatternLockView.Dot>?) {
             }
@@ -50,16 +48,19 @@ class PatternTab(context: Context, attrs: AttributeSet) : RelativeLayout(context
     }
 
     private fun receivedHash(newHash: String) {
-        if (hash.isEmpty()) {
+        when {
+            hash.isEmpty() -> {
                 hash = newHash
                 pattern_lock_view.clearPattern()
                 pattern_lock_title.setText(R.string.repeat_pattern)
-        } else if (hash == newHash) {
+            }
+            hash == newHash -> {
                 pattern_lock_view.setViewMode(PatternLockView.PatternViewMode.CORRECT)
                 Handler().postDelayed({
                     hashListener.receivedHash(hash, PROTECTION_PATTERN)
                 }, 300)
-        } else {
+            }
+            else -> {
                 pattern_lock_view.setViewMode(PatternLockView.PatternViewMode.WRONG)
                 context.toast(R.string.wrong_pattern)
                 Handler().postDelayed({
@@ -71,4 +72,7 @@ class PatternTab(context: Context, attrs: AttributeSet) : RelativeLayout(context
                 }, 1000)
             }
         }
+    }
+
+    override fun visibilityChanged(isVisible: Boolean) {}
 }

commons/src/main/kotlin/com/simplemobiletools/commons/views/PinTab.kt

@@ -97,4 +97,6 @@ class PinTab(context: Context, attrs: AttributeSet) : RelativeLayout(context, at
         val bigInteger = BigInteger(1, digest)
         return String.format(Locale.getDefault(), "%0${digest.size * 2}x", bigInteger).toLowerCase()
     }
+
+    override fun visibilityChanged(isVisible: Boolean) {}
 }

commons/src/main/res/layout/tab_fingerprint.xml

@@ -13,7 +13,7 @@
         android:text="@string/add_fingerprint"/>
 
     <ImageView
-        android:id="@+id/finterprint_image"
+        android:id="@+id/fingerprint_image"
         android:layout_width="@dimen/fingerprint_icon_size"
         android:layout_height="@dimen/fingerprint_icon_size"
         android:layout_below="@+id/fingerprint_lock_title"
@@ -21,4 +21,16 @@
         android:layout_marginTop="@dimen/activity_margin"
         android:src="@drawable/ic_fingerprint"/>
 
+    <com.simplemobiletools.commons.views.MyTextView
+        android:id="@+id/fingerprint_label"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/fingerprint_image"
+        android:layout_centerHorizontal="true"
+        android:layout_marginLeft="@dimen/activity_margin"
+        android:layout_marginRight="@dimen/activity_margin"
+        android:gravity="center"
+        android:padding="@dimen/activity_margin"
+        android:text="@string/place_finger"/>
+
 </com.simplemobiletools.commons.views.FingerprintTab>

commons/src/main/res/values/strings.xml

@@ -167,6 +167,7 @@
     <string name="repeat_pattern">Repeat pattern</string>
     <string name="fingerprint">Fingerprint</string>
     <string name="add_fingerprint">Add fingerprint</string>
+    <string name="place_finger">Please place your finger on the fingerprint sensor</string>
     <string name="protection_setup_successfully">Password setup successfully. Please reinstall the app in case you forget it.</string>
 
     <!-- Times -->