use ProgressBar instead of Dialog for BT invite scans

I wanted to show progress, and it was just as easy to replace the
deprecated ProgressDialog as to add a timer to the thing.

xwords4/android/app/src/main/java/org/eehouse/android/xw4/BTInviteDelegate.java

@@ -22,13 +22,14 @@ package org.eehouse.android.xw4;
 
 import android.app.Activity;
 import android.app.AlertDialog;
-import android.app.ProgressDialog;
 import android.bluetooth.BluetoothDevice;
 import android.content.Intent;
 import android.os.Bundle;
+import android.os.Handler;
 import android.text.format.DateUtils;
 import android.view.View;
 import android.widget.Button;
+import android.widget.ProgressBar;
 
 import org.eehouse.android.xw4.DBUtils.SentInvitesInfo;
 import org.eehouse.android.xw4.DlgDelegate.Action;
@@ -49,9 +50,11 @@ public class BTInviteDelegate extends InviteDelegate {
                                              R.id.button_clear,
     };
     private static final boolean ENABLE_FAKER = false;
+    private static final int SCAN_SECONDS = 5;
 
     private Activity m_activity;
-    private ProgressDialog m_progress;
+    private ProgressBar mProgressBar;
+    private Handler m_handler = new Handler();
 
     private static class Persisted implements Serializable {
         List<TwoStringPair> pairs;
@@ -173,7 +176,7 @@ public class BTInviteDelegate extends InviteDelegate {
         case SCAN_DONE:
             post( new Runnable() {
                     public void run() {
-                        m_progress.cancel();
+                        killProgress();
 
                         if ( mPersisted.empty() ) {
                             makeNotAgainBuilder( R.string.not_again_emptybtscan,
@@ -233,9 +236,8 @@ public class BTInviteDelegate extends InviteDelegate {
         int count = BTService.getPairedCount( m_activity );
         if ( 0 < count ) {
             String msg = getQuantityString( R.plurals.bt_scan_progress_fmt, count, count );
-            m_progress = ProgressDialog.show( m_activity, msg, null, true, true );
+            startProgress( SCAN_SECONDS );
-
+            BTService.scan( m_activity, 1000 * SCAN_SECONDS );
-            BTService.scan( m_activity, 5000 );
         } else {
             makeConfirmThenBuilder( R.string.bt_no_devs,
                                     Action.OPEN_BT_PREFS_ACTION )
@@ -255,6 +257,39 @@ public class BTInviteDelegate extends InviteDelegate {
         tryEnable();
     }
 
+    private void startProgress( int nSeconds )
+    {
+        mProgressBar = (ProgressBar)findViewById( R.id.progress );
+        mProgressBar.setProgress( 0 );
+        mProgressBar.setMax( nSeconds );
+        findViewById( R.id.progress_line ).setVisibility( View.VISIBLE );
+        incrementProgressIn( 1 );
+    }
+
+    private void killProgress()
+    {
+        findViewById( R.id.progress_line ).setVisibility( View.GONE );
+        mProgressBar = null;
+    }
+
+    private void incrementProgressIn( int inSeconds )
+    {
+        m_handler.postDelayed( new Runnable() {
+                @Override
+                public void run() {
+                    if ( null != mProgressBar ) {
+                        int curProgress = mProgressBar.getProgress();
+                        if ( curProgress >= mProgressBar.getMax() ) {
+                            killProgress(); // create illusion it's done
+                        } else {
+                            mProgressBar.setProgress( curProgress + 1, true );
+                            incrementProgressIn( 1 );
+                        }
+                    }
+                }
+            }, 1000 * inSeconds );
+    }
+
     private void load()
     {
         try {

xwords4/android/app/src/main/java/org/eehouse/android/xw4/BTService.java

@@ -1403,7 +1403,7 @@ public class BTService extends XWService {
                                       int timeout )
     {
         String name = socket.getRemoteDevice().getName();
-        Log.w( TAG, "connect(%s) starting", name );
+        Log.w( TAG, "connect(%s, timeout=%d) starting", name, timeout );
         // DbgUtils.logf( "connecting to %s to send cmd %s", name, cmd.toString() );
         // Docs say always call cancelDiscovery before trying to connect
         m_adapter.cancelDiscovery();

xwords4/android/app/src/main/res/layout/inviter.xml

@@ -27,6 +27,27 @@
             android:padding="20dp"
             />
 
+  <LinearLayout android:id="@+id/progress_line"
+                android:orientation="horizontal"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:visibility="gone"
+                android:padding="5dp"
+                >
+    <TextView android:layout_width="wrap_content"
+              android:layout_height="wrap_content"
+              android:textAppearance="?android:attr/textAppearanceMedium"
+			  android:text="@string/scan_progress_label"
+              android:paddingRight="5dp"
+              />
+    <ProgressBar android:id="@+id/progress"
+                 style="@android:style/Widget.ProgressBar.Horizontal"
+                 android:layout_width="match_parent"
+                 android:layout_height="wrap_content"
+                 android:min="0"
+                 />
+  </LinearLayout>
+
   <FrameLayout android:id="@+id/button_bar"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"

xwords4/android/app/src/main/res/values/strings.xml

@@ -1833,6 +1833,9 @@
     <!-- In the Bluetooth invite device dialog, kick off a new scan of
          nearby devices -->
     <string name="button_scan">Rescan</string>
+    <!-- Text to the left of the bluetooth-scanning progress bar in BT
+         invitation dialog -->
+    <string name="scan_progress_label">Scanning:</string>
 
       <!--  -->
     <string name="invite_progress_title">Connecting…</string>