Merge pull request #9 from mitchhentges/title-feedback

Title feedback animation

README.md

@@ -12,7 +12,7 @@ Built using Gradle, because it's the default Android build tool supported by And
     * Google Repository
     * Android Support Repository
 3. Get a [Google Maps API Key](https://developers.google.com/maps/documentation/android/signup)
-4. In `~/gradle.properties`, enter `positionMockApiKey=YOUR_KEY_HERE`
+4. In `~/gradle.properties`, enter `positionMockApiKey=YOUR_KEY_HERE` (or just set the environment variable `API_KEY`)
 3. Run `gradle build`
 
 ## Purpose

app/build.gradle

@@ -16,7 +16,7 @@ android {
 
     defaultConfig {
         applicationId "ca.mitchhentges.positionmock"
-        minSdkVersion 11
+        minSdkVersion 12
         //We're forced to use appcompat 21.0.3 due to Travis, and the target sdk should match
         //noinspection OldTargetApi
         targetSdkVersion 21

app/src/main/java/ca/mitchhentges/positionmock/PositionMockActivity.java

@@ -3,7 +3,6 @@
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
-import android.content.pm.PackageManager;
 import android.location.LocationManager;
 import android.os.Bundle;
 import android.provider.Settings;
@@ -12,13 +11,9 @@
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
-
 import com.google.android.gms.maps.GoogleMap;
 import com.google.android.gms.maps.MapFragment;
 import com.google.android.gms.maps.OnMapReadyCallback;
-import com.google.android.gms.maps.model.LatLng;
-
-import java.io.IOException;
 
 /**
  * Created by Mitch
@@ -28,11 +23,13 @@ public class PositionMockActivity extends ActionBarActivity implements OnMapRead
 
     private CurrentLocation currentLocation;
     private Map map;
+    private TitleBarAnimator titleBarAnimator;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.map);
+        titleBarAnimator = new TitleBarAnimator(this);
 
         try {
             map = new Map();
@@ -94,6 +91,7 @@ public boolean onCreateOptionsMenu(Menu menu) {
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
             case R.id.apply:
+                titleBarAnimator.animateTitleBar();
                 map.applyTarget(currentLocation);
                 return true;
             default:

app/src/main/java/ca/mitchhentges/positionmock/TitleBarAnimator.java

@@ -0,0 +1,53 @@
+package ca.mitchhentges.positionmock;
+
+import android.animation.ValueAnimator;
+import android.graphics.Color;
+import android.graphics.drawable.ColorDrawable;
+import android.support.v7.app.ActionBarActivity;
+import android.util.Log;
+
+/**
+ * @author cacti
+ * @since 12/1/2015
+ */
+public class TitleBarAnimator {
+
+    private final ActionBarActivity activity;
+
+    public TitleBarAnimator(ActionBarActivity activity) {
+        this.activity = activity;
+    }
+
+    public void animateTitleBar() {
+        // Initial colors of each system bar.
+        final int toolbarColor = activity.getResources().getColor(R.color.toolbar_color);
+        final int toolbarToColor = activity.getResources().getColor(R.color.toolbar_to_color);
+
+        ValueAnimator anim = ValueAnimator.ofFloat(0, 1);
+        anim.addUpdateListener(new ValueAnimator.AnimatorUpdateListener() {
+            @Override
+            public void onAnimationUpdate(ValueAnimator animation) {
+                float position = animation.getAnimatedFraction();
+
+                if (position > 0.5) {
+                    position = Math.abs(position - 1);
+                }
+
+                int blended = blendColors(toolbarColor, toolbarToColor, position * 2);
+                ColorDrawable background = new ColorDrawable(blended);
+                activity.getSupportActionBar().setBackgroundDrawable(background);
+            }
+        });
+        anim.setDuration(500).start();
+    }
+
+    private int blendColors(int from, int to, float ratio) {
+        final float inverseRatio = 1f - ratio;
+
+        final float r = Color.red(to) * ratio + Color.red(from) * inverseRatio;
+        final float g = Color.green(to) * ratio + Color.green(from) * inverseRatio;
+        final float b = Color.blue(to) * ratio + Color.blue(from) * inverseRatio;
+
+        return Color.rgb((int) r, (int) g, (int) b);
+    }
+}

app/src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="toolbar_color">#212121</color>
+    <color name="toolbar_to_color">#45B223</color>
+</resources>

build.gradle

@@ -19,5 +19,5 @@ allprojects {
 }
 
 task wrapper(type: Wrapper) {
-    gradleVersion = '2.5'
+    gradleVersion = '2.9'
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Fri Aug 07 20:19:40 PDT 2015
+#Tue Dec 01 21:54:51 PST 2015
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.9-bin.zip