From 9b86c694ff82d88036deba374a208861788f7874 Mon Sep 17 00:00:00 2001
From: tibbi <tibor@kaputa.sk>
Date: Sun, 23 Sep 2018 10:58:51 +0200
Subject: [PATCH] implement char clearing at the dialpad

---
 .../contacts/activities/DialpadActivity.kt    | 19 +++++++++++++++++++
 app/src/main/res/layout/activity_dialpad.xml  | 18 ++++++++++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/app/src/main/kotlin/com/simplemobiletools/contacts/activities/DialpadActivity.kt b/app/src/main/kotlin/com/simplemobiletools/contacts/activities/DialpadActivity.kt
index 0c5ad59a..5f8190dd 100644
--- a/app/src/main/kotlin/com/simplemobiletools/contacts/activities/DialpadActivity.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/contacts/activities/DialpadActivity.kt
@@ -1,8 +1,11 @@
 package com.simplemobiletools.contacts.activities
 
 import android.os.Bundle
+import android.text.SpannableStringBuilder
+import com.simplemobiletools.commons.extensions.applyColorFilter
 import com.simplemobiletools.commons.extensions.updateTextColors
 import com.simplemobiletools.contacts.R
+import com.simplemobiletools.contacts.extensions.config
 import kotlinx.android.synthetic.main.activity_dialpad.*
 
 class DialpadActivity : SimpleActivity() {
@@ -22,14 +25,30 @@ class DialpadActivity : SimpleActivity() {
         dialpad_9.setOnClickListener { dialpadPressed("9") }
         dialpad_asterisk.setOnClickListener { dialpadPressed("*") }
         dialpad_hashtag.setOnClickListener { dialpadPressed("#") }
+        dialpad_clear_char.setOnClickListener { clearChar() }
+        dialpad_clear_char.setOnLongClickListener { clearInput(); true }
     }
 
     override fun onResume() {
         super.onResume()
         updateTextColors(dialpad_wrapper)
+        dialpad_clear_char.applyColorFilter(config.textColor)
     }
 
     private fun dialpadPressed(char: String) {
         dialpad_input.append(char)
     }
+
+    private fun clearChar() {
+        val curPostion = dialpad_input.selectionEnd
+        val reducedPos = Math.max(curPostion - 1, 0)
+        val selectedString = SpannableStringBuilder(dialpad_input.text)
+        selectedString.replace(reducedPos, curPostion, "")
+        dialpad_input.text = selectedString
+        dialpad_input.setSelection(reducedPos)
+    }
+
+    private fun clearInput() {
+        dialpad_input.setText("")
+    }
 }
diff --git a/app/src/main/res/layout/activity_dialpad.xml b/app/src/main/res/layout/activity_dialpad.xml
index 80e2955e..5a9f8f5d 100644
--- a/app/src/main/res/layout/activity_dialpad.xml
+++ b/app/src/main/res/layout/activity_dialpad.xml
@@ -18,13 +18,27 @@
 
         <com.simplemobiletools.commons.views.MyEditText
             android:id="@+id/dialpad_input"
-            android:layout_width="match_parent"
+            android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:gravity="center"
             android:inputType="phone"
             android:textCursorDrawable="@null"
             android:textSize="@dimen/dialpad_input_text_size"
-            app:layout_constraintBottom_toTopOf="@+id/dialpad_2"/>
+            app:layout_constraintBottom_toTopOf="@+id/dialpad_2"
+            app:layout_constraintEnd_toStartOf="@+id/dialpad_clear_char"
+            app:layout_constraintStart_toStartOf="parent"/>
+
+        <ImageView
+            android:id="@+id/dialpad_clear_char"
+            style="@style/MyBorderlessBackgroundStyle"
+            android:layout_width="wrap_content"
+            android:layout_height="0dp"
+            android:paddingLeft="@dimen/activity_margin"
+            android:paddingRight="@dimen/activity_margin"
+            android:src="@drawable/ic_clear_char"
+            app:layout_constraintBottom_toBottomOf="@+id/dialpad_input"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintTop_toTopOf="@+id/dialpad_input"/>
 
         <com.simplemobiletools.commons.views.MyTextView
             android:id="@+id/dialpad_1"