WIP: Fixing swap UI for earlier versions of Android.

Replaced `Switch` with `SwitchCompat`. In the future, should completely remove
F-Droid's `SwitchCompat` class. Fixed paddingLeft/paddingStart, except for some
places where lint complained. Apparantly that is for some Samsung tablets on
Android-16. Will have to create a layout-v17 version in the end for these.

F-Droid/res/layout/swap_activity.xml

@@ -10,6 +10,7 @@
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:titleTextAppearance="@style/SwapTheme.Wizard.Text"
+        titleTextAppearance="@style/SwapTheme.Wizard.Text"
         android:minHeight="?attr/actionBarSize"
         android:background="?attr/colorPrimary" />
 

F-Droid/res/layout/swap_blank.xml

@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 
+<!-- TODO: Add paddingStart in places where there is only paddingLeft. However Android Studio lint
+     gives an error, which is discussed here:
+     http://stackoverflow.com/questions/27449776/conflicting-lint-messages-regarding-paddingstart-usage?lq=1
+     -->
 <org.fdroid.fdroid.views.swap.StartSwapView
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
@@ -27,8 +31,10 @@
                 android:layout_width="24dp"
                 android:layout_height="24dp"
                 android:src="@drawable/ic_info_white"
+                android:layout_alignParentRight="true"
                 android:layout_alignParentEnd="true"
                 android:layout_alignParentTop="true"
+                android:layout_marginRight="10dp"
                 android:layout_marginEnd="10dp"
                 android:layout_marginTop="10dp"
                 />
@@ -39,7 +45,8 @@
                 android:layout_centerHorizontal="true"
                 android:layout_alignParentBottom="true"
                 android:padding="20dp"
-                android:paddingStart="30dp"
+                android:paddingLeft="30dp"
+                android:paddingRight="30dp"
                 android:paddingEnd="30dp"
                 android:textAlignment="center"
                 android:text="@string/swap_intro"
@@ -65,6 +72,7 @@
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical"
+                android:paddingLeft="15dp"
                 android:paddingStart="15dp"
                 android:layout_weight="1.00">
 
@@ -84,7 +92,7 @@
 
             </LinearLayout>
 
-            <Switch
+            <android.support.v7.widget.SwitchCompat
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 tools:checked="true"
@@ -108,6 +116,7 @@
                 android:layout_width="fill_parent"
                 android:layout_height="wrap_content"
                 android:orientation="vertical"
+                android:paddingLeft="15dp"
                 android:paddingStart="15dp"
                 android:layout_weight="1.00">
 
@@ -135,7 +144,7 @@
 
             </LinearLayout>
 
-            <Switch
+            <android.support.v7.widget.SwitchCompat
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
                 tools:checked="false"
@@ -178,7 +187,7 @@
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:text="@string/swap_cant_find_peers"
-            android:paddingStart="20dp"
+            android:paddingLeft="20dp"
             android:paddingTop="20dp"
             android:textColor="@color/swap_light_text" />
 
@@ -191,10 +200,12 @@
                 android:id="@+id/btn_send_fdroid"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
+                android:drawableLeft="@drawable/ic_fdroid_grey"
                 android:drawableStart="@drawable/ic_fdroid_grey"
                 android:text="@string/swap_send_fdroid"
                 android:drawablePadding="10dp"
-                android:paddingStart="25dp"
+                android:paddingLeft="25dp"
+                android:paddingRight="25dp"
                 android:paddingEnd="25dp"
                 android:background="@android:color/transparent" />
 
@@ -202,10 +213,12 @@
                 android:id="@+id/btn_qr_scanner"
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
+                android:drawableLeft="@drawable/ic_qr_grey"
                 android:drawableStart="@drawable/ic_qr_grey"
                 android:text="@string/swap_scan_qr_code"
                 android:drawablePadding="10dp"
-                android:paddingStart="25dp"
+                android:paddingLeft="25dp"
+                android:paddingRight="25dp"
                 android:paddingEnd="25dp"
                 android:background="@android:color/transparent" />
 

F-Droid/res/layout/swap_bluetooth_header.xml

@@ -1,72 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-
-<LinearLayout
-    xmlns:tools="http://schemas.android.com/tools"
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
-    android:gravity="center"
-    android:layout_width="wrap_content"
-    android:layout_height="wrap_content"
-    android:background="@color/fdroid_blue"
-    >
-
-    <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/device_name_prefix"
-            android:text="@string/swap_bluetooth_your_device"
-            android:gravity="center_horizontal"
-            style="@style/SwapTheme.BluetoothDeviceList.Heading"
-            android:paddingTop="10dp"
-            android:paddingBottom="5dp"
-            android:textSize="24sp"
-            android:textColor="@color/white"
-        />
-
-    <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/device_name"
-            tools:text="Phone v2.0"
-            android:gravity="center_horizontal"
-            style="@style/SwapTheme.BluetoothDeviceList.Heading"
-            android:paddingBottom="5dp"
-            android:textColor="@color/white"
-        />
-
-    <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:id="@+id/device_address"
-            tools:text="(01:02:03:ab:cd:ef)"
-            android:gravity="center_horizontal"
-            style="@style/SwapTheme.BluetoothDeviceList.Heading"
-            android:paddingBottom="10dp"
-            android:textSize="18sp"
-            android:textColor="@color/white"
-        />
-
-    <TextView
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:text="@string/swap_bluetooth_select_or_scan"
-            android:gravity="center_horizontal"
-            style="@style/SwapTheme.BluetoothDeviceList.Text"
-            android:paddingLeft="20dp"
-            android:paddingRight="20dp"
-            android:paddingBottom="5dp"
-            android:textColor="@color/white"
-
-        />
-
-    <android.support.v4.widget.ContentLoadingProgressBar
-            android:layout_width="match_parent"
-            android:layout_height="wrap_content"
-            android:id="@+id/loading_indicator"
-            android:paddingLeft="5dp"
-            android:paddingRight="5dp"
-            android:visibility="gone"
-            android:indeterminate="true"
-            style="?android:attr/android:progressBarStyleHorizontal"/>
-
-</LinearLayout>

F-Droid/res/values/styles.xml

@@ -34,13 +34,11 @@
     </style>
 
     <style name="SwapTheme.Wizard" parent="Theme.AppCompat.Light.NoActionBar">
-        <!--<item name="android:windowBackground">@drawable/swap_window_background</item>-->
-        <!--<item name="android:actionBarStyle">@style/Widget.AppCompat.ActionBar.Solid</item>-->
-        <item name="actionButtonStyle">@style/SwapTheme.Wizard.ActionButton</item>
         <item name="colorButtonNormal">@color/swap_bright_blue</item>
-        <item name="android:windowBackground">@drawable/swap_window_background</item>
         <item name="android:actionBarStyle">@style/Widget.AppCompat.ActionBar.Solid</item>
         <item name="android:actionButtonStyle">@style/SwapTheme.Wizard.ActionButton</item>
+        <item name="actionButtonStyle">@style/SwapTheme.Wizard.ActionButton</item>
+        <item name="actionBarStyle">@style/Widget.AppCompat.ActionBar.Solid</item>
     </style>
 
     <style name="SwapTheme.StartSwap" parent="AppThemeLight">
@@ -53,16 +51,6 @@
     <style name="SwapTheme.BluetoothDeviceList" parent="@style/SwapTheme.Wizard">
     </style>
 
-    <style name="SwapTheme.BluetoothDeviceList.ListItem" parent="AppThemeDark">
-    </style>
-
-    <style name="SwapTheme.BluetoothDeviceList.Text" parent="@style/SwapTheme.BluetoothDeviceList">
-    </style>
-
-    <style name="SwapTheme.BluetoothDeviceList.Heading" parent="@style/SwapTheme.BluetoothDeviceList.Text">
-        <item name="android:textSize">32.5dp</item> <!-- 58px * 96dpi / 160dpi = 32.5sp -->
-    </style>
-
     <style name="SwapTheme.AppList" parent="AppThemeLight">
     </style>
 

F-Droid/src/org/fdroid/fdroid/localrepo/SwapService.java

@@ -66,6 +66,7 @@ import java.util.TimerTask;
  * TODO: Remove peers from list of peers when no longer "visible".
  * TODO: Show feedback for "Setting up (wifi|bluetooth)" in start swap view.
  * TODO: Turn off bluetooth after cancelling/timing out if we turned it on.
+ * TODO: Disable the Scan QR button unless visible via something. Could equally show relevant feedback.
  *
  */
 public class SwapService extends Service {

F-Droid/src/org/fdroid/fdroid/localrepo/type/WifiSwap.java

@@ -43,6 +43,8 @@ public class WifiSwap extends SwapType {
     public void start() {
 
         Log.d(TAG, "Preparing swap webserver.");
+        sendBroadcast(SwapService.EXTRA_STARTING);
+
         Runnable webServer = new Runnable() {
             // Tell Eclipse this is not a leak because of Looper use.
             @SuppressLint("HandlerLeak")
@@ -66,7 +68,6 @@ public class WifiSwap extends SwapType {
                 };
                 try {
                     Log.d(TAG, "Starting swap webserver...");
-                    sendBroadcast(SwapService.EXTRA_STARTING);
                     localHttpd.start();
                     setConnected(true);
                     Log.d(TAG, "Swap webserver started.");
@@ -92,12 +93,12 @@ public class WifiSwap extends SwapType {
     public void stop() {
         if (webServerThreadHandler == null) {
             Log.i(TAG, "null handler in stopWebServer");
-            return;
+        } else {
+            Log.d(TAG, "Sending message to swap webserver to stop it.");
+            Message msg = webServerThreadHandler.obtainMessage();
+            msg.obj = webServerThreadHandler.getLooper().getThread().getName() + " says stop";
+            webServerThreadHandler.sendMessage(msg);
         }
-        Log.d(TAG, "Sending message to swap webserver to stop it.");
-        Message msg = webServerThreadHandler.obtainMessage();
-        msg.obj = webServerThreadHandler.getLooper().getThread().getName() + " says stop";
-        webServerThreadHandler.sendMessage(msg);
         bonjourBroadcast.stop();
     }
 

F-Droid/src/org/fdroid/fdroid/net/WifiStateChangeService.java

@@ -163,11 +163,11 @@ public class WifiStateChangeService extends Service {
             WifiStateChangeService.this.stopSelf();
 
             Intent swapService = new Intent(WifiStateChangeService.this, SwapService.class);
-            bindService(swapService, new ServiceConnection() {
+            getApplicationContext().bindService(swapService, new ServiceConnection() {
                 @Override
                 public void onServiceConnected(ComponentName name, IBinder service) {
-                    ((SwapService.Binder)service).getService().restartWifiIfEnabled();
+                    ((SwapService.Binder) service).getService().restartWifiIfEnabled();
-                    unbindService(this);
+                    getApplicationContext().unbindService(this);
                 }
 
                 @Override

F-Droid/src/org/fdroid/fdroid/net/bluetooth/BluetoothConstants.java

@@ -12,7 +12,7 @@ public class BluetoothConstants {
         // This can be an offline process, as long as it can be reproduced by other people who
         // want to do so.
         // This UUID is just from mashing random hex characters on the keyboard.
-        return UUID.fromString("cd59ba31-5729-b3bb-cb29-732b59eu6gaa");
+        return UUID.fromString("cd59ba31-5729-b3bb-cb29-732b59eb61aa");
     }
 
 }

F-Droid/src/org/fdroid/fdroid/views/swap/StartSwapView.java

@@ -11,6 +11,7 @@ import android.support.annotation.ColorRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.v4.content.LocalBroadcastManager;
+import android.support.v7.widget.SwitchCompat;
 import android.text.TextUtils;
 import android.util.AttributeSet;
 import android.util.Log;
@@ -26,7 +27,6 @@ import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.ProgressBar;
 import android.widget.ScrollView;
-import android.widget.Switch;
 import android.widget.TextView;
 
 import org.fdroid.fdroid.FDroidApp;
@@ -168,6 +168,7 @@ public class StartSwapView extends ScrollView implements SwapWorkflowActivity.In
             }
         });
 
+        // TODO: Unregister this receiver at the right time.
         LocalBroadcastManager.getInstance(getContext()).registerReceiver(new BroadcastReceiver() {
             @Override
             public void onReceive(Context context, Intent intent) {
@@ -211,7 +212,7 @@ public class StartSwapView extends ScrollView implements SwapWorkflowActivity.In
             int textResource = getManager().isBluetoothDiscoverable() ? R.string.swap_visible_bluetooth : R.string.swap_not_visible_bluetooth;
             textBluetoothVisible.setText(textResource);
 
-            final Switch bluetoothSwitch = ((Switch) findViewById(R.id.switch_bluetooth));
+            final SwitchCompat bluetoothSwitch = ((SwitchCompat) findViewById(R.id.switch_bluetooth));
             bluetoothSwitch.setChecked(getManager().isBluetoothDiscoverable());
             bluetoothSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                 @Override
@@ -265,7 +266,7 @@ public class StartSwapView extends ScrollView implements SwapWorkflowActivity.In
         viewWifiId = (TextView)findViewById(R.id.device_id_wifi);
         viewWifiNetwork = (TextView)findViewById(R.id.wifi_network);
 
-        final Switch wifiSwitch = (Switch)findViewById(R.id.switch_wifi);
+        final SwitchCompat wifiSwitch = (SwitchCompat)findViewById(R.id.switch_wifi);
         wifiSwitch.setChecked(getManager().isBonjourDiscoverable());
         wifiSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
@@ -281,6 +282,8 @@ public class StartSwapView extends ScrollView implements SwapWorkflowActivity.In
         });
 
         final TextView textWifiVisible = (TextView)findViewById(R.id.wifi_visible);
+        int textResource = getManager().isBonjourDiscoverable() ? R.string.swap_visible_wifi : R.string.swap_not_visible_wifi;
+        textWifiVisible.setText(textResource);
 
         // TODO: Unregister receiver correctly...
         LocalBroadcastManager.getInstance(getContext()).registerReceiver(new BroadcastReceiver() {