change title color dynamically based on the profile image2017-10-12

2 files changed, 28 insertions, 11 deletions

diff --git a/app/build.gradle b/app/build.gradle
index fe05f417..3ac1259c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -45,6 +45,7 @@ dependencies {
 
     implementation 'com.android.support:support-core-ui:26.1.0'
     implementation 'com.android.support:support-v13:26.1.0'
+    implementation 'com.android.support:palette-v7:26.1.0'
 
     // Anko; not using Anko Layouts and Anko SQLite for now
     implementation "org.jetbrains.anko:anko-commons:$anko_version"
diff --git a/app/src/main/java/net/lacolaco/smileessence/activity/MainActivity.kt b/app/src/main/java/net/lacolaco/smileessence/activity/MainActivity.kt
index ce0b9ee8..ef915e21 100644
--- a/app/src/main/java/net/lacolaco/smileessence/activity/MainActivity.kt
+++ b/app/src/main/java/net/lacolaco/smileessence/activity/MainActivity.kt
@@ -6,10 +6,12 @@ import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
 import android.graphics.drawable.BitmapDrawable
+import android.graphics.drawable.ColorDrawable
 import android.net.Uri
 import android.os.Bundle
 import android.provider.MediaStore
 import android.support.v4.view.ViewPager
+import android.support.v7.graphics.Palette
 import android.text.TextUtils
 import android.util.DisplayMetrics
 import android.view.Menu
@@ -23,14 +25,12 @@ import net.lacolaco.smileessence.Application
 import net.lacolaco.smileessence.R
 import net.lacolaco.smileessence.World
 import net.lacolaco.smileessence.data.ExtractionWord
+import net.lacolaco.smileessence.data.ImageCache
 import net.lacolaco.smileessence.logging.Logger
 import net.lacolaco.smileessence.twitter.TwitterTaskException
 import net.lacolaco.smileessence.twitter.task.getTweetAsync
 import net.lacolaco.smileessence.twitter.task.getUserAsync
-import net.lacolaco.smileessence.util.BitmapURLTask
-import net.lacolaco.smileessence.util.bg
-import net.lacolaco.smileessence.util.getMainActivityOrCancel
-import net.lacolaco.smileessence.util.launchUi
+import net.lacolaco.smileessence.util.*
 import net.lacolaco.smileessence.view.DialogHelper
 import net.lacolaco.smileessence.view.adapter.PageListAdapter
 import net.lacolaco.smileessence.view.confirm
@@ -102,6 +102,9 @@ class MainActivity : Activity(), ViewPager.OnPageChangeListener {
         val label = getString(R.string.app_name) + " - @" + world.account.user.screenName
         setTaskDescription(ActivityManager.TaskDescription(label))
 
+        if (!world.account.user.profileImageUrl.startsWith("http"))
+            return
+
         // XXX: It doesn't seem possible to change scaleType of the ImageButton to fitXY
         launchUi {
             val bitmap = bg {
@@ -110,9 +113,7 @@ class MainActivity : Activity(), ViewPager.OnPageChangeListener {
                     inputStream = URL(world.account.user.profileImageUrl).openStream()
                     val opt = BitmapFactory.Options()
                     opt.inPurgeable = true // GC可能にする
-                    val orig = BitmapFactory.decodeStream(inputStream, null, opt)
-                    val r = 32.0 * resources.displayMetrics.density
-                    return@bg Bitmap.createScaledBitmap(orig, r.toInt(), r.toInt(), false)
+                    return@bg BitmapFactory.decodeStream(inputStream, null, opt)
                 } catch (e: IOException) {
                     e.printStackTrace()
                     return@bg null
@@ -123,10 +124,25 @@ class MainActivity : Activity(), ViewPager.OnPageChangeListener {
                         e.printStackTrace()
                     }
                 }
-            }.await()
-            if (bitmap != null) {
-                val d = BitmapDrawable(resources, bitmap)
-                actionBar.setHomeAsUpIndicator(d)
+            }.await() ?: return@launchUi
+
+            val dScaledBitmap = bg {
+                val r = 32.0 * resources.displayMetrics.density
+                Bitmap.createScaledBitmap(bitmap, r.toInt(), r.toInt(), false)
+            }
+            val dPalette = bg { Palette.from(bitmap).generate() }
+
+            val scaledBitmap = dScaledBitmap.await()
+            actionBar.setHomeAsUpIndicator(BitmapDrawable(resources, scaledBitmap))
+
+            val palette = dPalette.await()
+            val textSwatch = palette.mutedSwatch
+            if (textSwatch == null) {
+                world.notifyError("Null swatch :(")
+            } else {
+                actionBar.setBackgroundDrawable(ColorDrawable(textSwatch.rgb))
+                window.statusBarColor = textSwatch.rgb
+                setTaskDescription(ActivityManager.TaskDescription(label, bitmap, textSwatch.rgb))
             }
         }
     }