Keyguard - Update emergency button

Match UX guidance: update colors, margins

Bug: 170729566
Test: visual inspection
Change-Id: Ie4097b65848203868a5aec4bd29758377257de50

packages/SystemUI/res-keyguard/drawable/kg_emergency_button_background.xml

@@ -17,9 +17,8 @@
 <ripple xmlns:android="http://schemas.android.com/apk/res/android"
     android:color="?attr/wallpaperTextColorSecondary">
     <item android:id="@android:id/background">
-        <shape
-            android:color="@android:color/transparent">
-            <stroke android:width="1dp" android:color="?android:attr/textColorSecondary"/>
+        <shape android:shape="rectangle">
+            <solid android:color="?android:attr/colorAccent"/>
             <corners android:radius="24dp"/>
         </shape>
     </item>
@@ -29,4 +28,4 @@
             <corners android:radius="24dp"/>
         </shape>
     </item>
-</ripple>
+</ripple>

packages/SystemUI/res-keyguard/layout/keyguard_emergency_carrier_area.xml

@@ -43,7 +43,7 @@
     <com.android.keyguard.EmergencyButton
         android:id="@+id/emergency_call_button"
         android:layout_width="wrap_content"
-        android:layout_height="32dp"
+        android:layout_height="48dp"
         android:layout_marginBottom="12dp"
         android:text="@*android:string/lockscreen_emergency_call"
         style="@style/Keyguard.TextView.EmergencyButton" />

packages/SystemUI/res-keyguard/layout/keyguard_pattern_view.xml

@@ -67,6 +67,7 @@
               android:layout_height="wrap_content"
               android:orientation="vertical"
               android:layout_gravity="bottom|center_horizontal"
+              android:layout_marginTop="@dimen/keyguard_eca_top_margin"
               android:gravity="center_horizontal" />
         </LinearLayout>
     </FrameLayout>

packages/SystemUI/res-keyguard/layout/keyguard_pin_view.xml

@@ -188,6 +188,7 @@
              android:layout_height="wrap_content"
              android:orientation="vertical"
              android:layout_gravity="bottom|center_horizontal"
+             android:layout_marginTop="@dimen/keyguard_eca_top_margin"
              android:gravity="center_horizontal"/>
 
 </com.android.keyguard.KeyguardPINView>

packages/SystemUI/res-keyguard/layout/keyguard_sim_pin_view.xml

@@ -198,6 +198,7 @@
              android:layout_height="wrap_content"
              android:orientation="vertical"
              android:layout_gravity="bottom|center_horizontal"
+             android:layout_marginTop="@dimen/keyguard_eca_top_margin"
              android:gravity="center_horizontal"/>
 
 </com.android.keyguard.KeyguardSimPinView>

packages/SystemUI/res-keyguard/layout/keyguard_sim_puk_view.xml

@@ -199,5 +199,6 @@
              android:layout_height="wrap_content"
              android:orientation="vertical"
              android:layout_gravity="bottom|center_horizontal"
+             android:layout_marginTop="@dimen/keyguard_eca_top_margin"
              android:gravity="center_horizontal"/>
 </com.android.keyguard.KeyguardSimPukView>

packages/SystemUI/res-keyguard/values/dimens.xml

@@ -40,6 +40,8 @@
     <dimen name="keyguard_security_view_top_margin">8dp</dimen>
     <dimen name="keyguard_security_view_lateral_margin">36dp</dimen>
 
+    <dimen name="keyguard_eca_top_margin">24dp</dimen>
+
     <!-- EmergencyCarrierArea overlap - amount to overlap the emergency button and carrier text.
          Should be 0 on devices with plenty of room (e.g. tablets) -->
     <dimen name="eca_overlap">-10dip</dimen>

packages/SystemUI/res-keyguard/values/styles.xml

@@ -23,12 +23,13 @@
         <item name="android:textSize">@dimen/kg_status_line_font_size</item>
     </style>
     <style name="Keyguard.TextView.EmergencyButton" parent="Theme.SystemUI">
-        <item name="android:textColor">?android:attr/textColorSecondary</item>
+        <item name="android:textColor">?android:attr/textColorPrimaryInverse</item>
         <item name="android:textSize">14dp</item>
         <item name="android:background">@drawable/kg_emergency_button_background</item>
         <item name="android:fontFamily">@*android:string/config_headlineFontFamily</item>
         <item name="android:paddingLeft">12dp</item>
         <item name="android:paddingRight">12dp</item>
+        <item name="android:stateListAnimator">@null</item>
     </style>
     <style name="NumPadKey" parent="Theme.SystemUI">
       <item name="android:colorControlNormal">?android:attr/colorBackground</item>

packages/SystemUI/src/com/android/keyguard/EmergencyButton.java

@@ -154,7 +154,7 @@ public class EmergencyButton extends Button {
      **/
     public void reloadColors() {
         int color = Utils.getColorAttrDefaultColor(getContext(),
-                android.R.attr.textColorSecondary);
+                android.R.attr.textColorPrimaryInverse);
         setTextColor(color);
         setBackground(getContext()
                 .getDrawable(com.android.systemui.R.drawable.kg_emergency_button_background));