Fine tune UI layout files of WifiDppQrCodeScannerFragment &

WifiDppQrCodeGeneratorFragment

    1. Remove footer in landscape QR code scanner fragment
    2. Move header icon from activity layout file to header layout file
    3. Fine tune header layout file
    4. set icons for the 2 fragments

Bug: 118797380
Bug: 118794858
Test: atest WifiDppConfiguratorActivityTest
      atest WifiDppQrCodeScannerFragmentTest
      atest WifiDppQrCodeGeneratorFragmentTest
      atest RunSettingsRoboTests

Change-Id: I7e547d7c29dd947a890e902e61b8244fec399354

res/layout-land/wifi_dpp_qrcode_scanner_fragment.xml

@@ -44,8 +44,5 @@
         android:layout_height="wrap_content"
         android:layout_gravity="center"/>
 
-    <include layout="@layout/wifi_dpp_fragment_footer"
-        android:gravity="center|bottom"/>
-
 </LinearLayout>
 

res/layout/wifi_dpp_activity.xml

@@ -22,12 +22,6 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
-    <ImageView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:src="@drawable/ic_wifi_signal_4"
-        android:layout_gravity="center"/>
-
     <LinearLayout
         android:id="@+id/fragment_container"
         android:layout_width="match_parent"

res/layout/wifi_dpp_fragment_header.xml

@@ -17,18 +17,42 @@
 
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
+    style="@style/EntityHeader"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:orientation="vertical">
+    android:layout_centerHorizontal="true"
+    android:gravity="center_horizontal"
+    android:orientation="vertical"
+    android:paddingStart="16dp"
+    android:paddingEnd="16dp">
 
-    <TextView android:id="@+id/title"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_gravity="center"/>
+    <ImageView
+        android:id="@+id/header_icon"
+        android:layout_width="48dp"
+        android:layout_height="48dp"
+        android:scaleType="fitCenter"/>
 
-    <TextView android:id="@+id/description"
-        android:layout_width="wrap_content"
+    <TextView
+        android:id="@+id/title"
+        style="@style/TextAppearance.EntityHeaderTitle"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_gravity="center"/>
+        android:gravity="center_horizontal"
+        android:textAlignment="center"
+        android:layout_marginTop="8dp"
+        android:paddingStart="32dp"
+        android:paddingEnd="32dp"/>
+
+    <TextView
+        android:id="@+id/description"
+        style="@style/TextAppearance.EntityHeaderSummary"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:singleLine="false"
+        android:gravity="center_horizontal"
+        android:textAlignment="center"
+        android:layout_marginTop="2dp"
+        android:paddingStart="32dp"
+        android:paddingEnd="32dp"/>
 
 </LinearLayout>

src/com/android/settings/wifi/dpp/WifiDppQrCodeBaseFragment.java

@@ -47,6 +47,7 @@ import com.android.settings.R;
  * {@code WifiDppAddDeviceFragment}
  */
 public abstract class WifiDppQrCodeBaseFragment extends InstrumentedFragment {
+    private ImageView mHeaderIcon;
     private TextView mTitle;
     private TextView mDescription;
 
@@ -89,6 +90,7 @@ public abstract class WifiDppQrCodeBaseFragment extends InstrumentedFragment {
     }
 
     private void initView(View view) {
+        mHeaderIcon = view.findViewById(R.id.header_icon);
         mTitle = view.findViewById(R.id.title);
         mDescription = view.findViewById(R.id.description);
 
@@ -108,6 +110,10 @@ public abstract class WifiDppQrCodeBaseFragment extends InstrumentedFragment {
         mButtonRight = view.findViewById(R.id.button_right);
     }
 
+    protected void setHeaderIconImageResource(int resId) {
+        mHeaderIcon.setImageResource(resId);
+    }
+
     protected void setTitle(String title) {
         mTitle.setText(title);
     }

src/com/android/settings/wifi/dpp/WifiDppQrCodeGeneratorFragment.java

@@ -45,6 +45,7 @@ public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment {
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
+        setHeaderIconImageResource(R.drawable.ic_qrcode_24dp);
         WifiNetworkConfig wifiNetworkConfig = ((WifiNetworkConfig.Retriever) getActivity())
                 .getWifiNetworkConfig();
         if (!WifiNetworkConfig.isValidConfig(wifiNetworkConfig)) {
@@ -79,7 +80,7 @@ public class WifiDppQrCodeGeneratorFragment extends WifiDppQrCodeBaseFragment {
     @Override
     public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
         MenuItem item = menu.add(0, Menu.FIRST, 0, R.string.next_label);
-        item.setIcon(R.drawable.ic_menu_add);
+        item.setIcon(R.drawable.ic_scan_24dp);
         item.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
 
         super.onCreateOptionsMenu(menu, inflater);

src/com/android/settings/wifi/dpp/WifiDppQrCodeScannerFragment.java

@@ -76,6 +76,8 @@ public class WifiDppQrCodeScannerFragment extends WifiDppQrCodeBaseFragment impl
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
 
+        setHeaderIconImageResource(R.drawable.ic_scan_24dp);
+
         if (mConfiguratorMode) {
             setTitle(getString(R.string.wifi_dpp_add_device_to_network));