From 870623d3964f004649ffb76531749333087e065a Mon Sep 17 00:00:00 2001
From: Renan Rhoden <renan.rhoden@ilegra.com>
Date: Fri, 26 Oct 2018 20:11:06 -0300
Subject: [PATCH] adding behavior to recalc gradiente when size changes

---
 .../android/gradienttextview/sample/MainActivity.kt  |  8 +++++---
 .../android/gradienttextview/sample/MainViewModel.kt |  2 +-
 .../java/com/opencraft/library/GradientTextView.kt   | 12 +++++++++++-
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainActivity.kt b/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainActivity.kt
index 1c60b24..1435b82 100644
--- a/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainActivity.kt
+++ b/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainActivity.kt
@@ -14,8 +14,10 @@ class MainActivity : AppCompatActivity() {
         val vm = MainViewModel(this)
         val binding = DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main)
         binding.vm = vm
-//        binding.gradient.postDelayed({
-//            binding.gradient.gradientColors = intArrayOf(Color.BLUE, Color.GREEN)
-//        }, 1000)
+        binding.gradient.postDelayed({
+            vm.text.set("aaaaaa\naaaaaa\naaaaaaa\naaaaaaaa")
+        }, 1000)
+
+
     }
 }
diff --git a/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainViewModel.kt b/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainViewModel.kt
index c105954..99061eb 100644
--- a/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainViewModel.kt
+++ b/app/src/main/java/com/opencraft/android/gradienttextview/sample/MainViewModel.kt
@@ -5,7 +5,7 @@ import android.databinding.ObservableField
 import com.opencraft.android.gradienttextview.R
 
 class MainViewModel(context: Context) {
-    val text = ObservableField<String>("aaaaaaaaaa\naaaaaaaaaa\naaaaaaaaaa\naaaaaaaaaa\naaaaaaaaaa")
+    val text = ObservableField<String>()
     val colors = context.resources.getIntArray(R.array.gradient_2)
     val colorsSpan = context.resources.getIntArray(R.array.gradient_color_span_2)
 }
\ No newline at end of file
diff --git a/library/src/main/java/com/opencraft/library/GradientTextView.kt b/library/src/main/java/com/opencraft/library/GradientTextView.kt
index f6ec704..89e66da 100644
--- a/library/src/main/java/com/opencraft/library/GradientTextView.kt
+++ b/library/src/main/java/com/opencraft/library/GradientTextView.kt
@@ -16,6 +16,7 @@ class GradientTextView constructor(context: Context, attrs: AttributeSet?, defSt
     private var startOption = -1
     private var endOption = -1
     private var changedColors = true
+    private var changedSize = false
 
     var gradientColors = intArrayOf(Color.BLACK, Color.WHITE)
         set(value) {
@@ -93,10 +94,14 @@ class GradientTextView constructor(context: Context, attrs: AttributeSet?, defSt
     }
 
     override fun onDraw(canvas: Canvas?) {
-        if (changedColors) {
+        if (changedColors ) {
             changedColors = false
             paint.shader = getLinearGradient()
         }
+        if (changedSize) {
+            changedSize = false
+            paint.shader = getLinearGradient()
+        }
         super.onDraw(canvas)
     }
 
@@ -151,6 +156,11 @@ class GradientTextView constructor(context: Context, attrs: AttributeSet?, defSt
         return Point(startX.toInt(), startY.toInt())
     }
 
+    override fun onSizeChanged(w: Int, h: Int, oldw: Int, oldh: Int) {
+        super.onSizeChanged(w, h, oldw, oldh)
+        changedColors = true
+    }
+
     companion object {
         const val TOP_LEFT = 0
         const val TOP_CENTER = 1