From 8a6f74b7d9ac3b0377da8e1ef49bd8b7b64eafa8 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Mon, 20 May 2019 18:58:13 +0200
Subject: android wip: building, but crashing when scanning
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Signed-off-by: Bjørn Mork <bjorn@mork.no>
---
 Defogger/Makefile                                  |  2 +-
 .../no/mork/android/defogger/ScannerActivity.java  | 45 ++++++++++++++--------
 2 files changed, 30 insertions(+), 17 deletions(-)

diff --git a/Defogger/Makefile b/Defogger/Makefile
index af414ad..4fecda2 100644
--- a/Defogger/Makefile
+++ b/Defogger/Makefile
@@ -14,7 +14,7 @@ JAVAVER ?= 8
 ANDROID_HOME ?= /usr/lib/android-sdk
 SDKCLASSPATH ?= $(ANDROID_HOME)/platforms/android-$(APIVER)/android.jar
 
-RESOURCES=layout/activity_main.xml values/strings.xml
+RESOURCES=layout/activity_main.xml layout/activity_scanner.xml layout/scanitem.xml values/strings.xml
 RES=$(addprefix res/,$(RESOURCES))
 
 ## Temp disabled while we have some non-building classess....
diff --git a/Defogger/src/no/mork/android/defogger/ScannerActivity.java b/Defogger/src/no/mork/android/defogger/ScannerActivity.java
index 552a746..5cc5989 100644
--- a/Defogger/src/no/mork/android/defogger/ScannerActivity.java
+++ b/Defogger/src/no/mork/android/defogger/ScannerActivity.java
@@ -5,18 +5,20 @@ import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.le.BluetoothLeScanner;
 import android.bluetooth.le.ScanCallback;
+import android.bluetooth.le.ScanResult;
 import android.content.Context;
 import android.content.Intent;
-import android.support.v7.widget.RecyclerView;  
 import android.os.Bundle;
 import android.os.Handler;
+import android.util.Log;
+import android.widget.ListView;
 import android.widget.Toast;
 
 
 // lots of nice examples: https://www.programcreek.com/java-api-examples/index.php?api=android.bluetooth.le.ScanCallback
 
 public class ScannerActivity extends Activity {
-
+    private static String msg = "Defogger Scanning: ";
     // Stops scanning after 10 seconds.
     private static final long SCAN_PERIOD = 10000;
     private BluetoothAdapter bluetoothAdapter;
@@ -24,45 +26,54 @@ public class ScannerActivity extends Activity {
     private Handler handler;
     private ScanCallback leScanCallback;
     private BluetoothLeScanner btScanner;
-
-    private RecyclerView recyclerView;
-    private RecyclerView.Adapter mAdapter;
-    private RecyclerView.LayoutManager layoutManager;
+    private ScanListAdapter scanlistAdapter;
     
     @Override
     protected void onCreate(Bundle savedInstanceState) {
 	super.onCreate(savedInstanceState);
 	setContentView(R.layout.activity_scanner);
 
-        recyclerView = (RecyclerView) findViewById(R.id.my_recycler_view);
-        recyclerView.setHasFixedSize(true);
-        layoutManager = new LinearLayoutManager(this);
-        recyclerView.setLayoutManager(layoutManager);
-        mAdapter = new ScanListAdapter(myDataset);
-        recyclerView.setAdapter(mAdapter);
- 
+        ListView listView = (ListView) findViewById(R.id.scanlist_view);
+	scanlistAdapter = new ScanListAdapter(this, R.layout.scanitem, R.id.scanitem);
+	listView.setAdapter(scanlistAdapter);
+	scanlistAdapter.addDevice("foo");
+	
 	bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
 	btScanner = bluetoothAdapter.getBluetoothLeScanner();
 
+	if (btScanner == null) {
+	    Log.d(msg, "getBluetoothLeScanner() returned NULL");
+	}
 	leScanCallback = new ScanCallback() {
 		@Override
 		public void onScanResult(int callbackType, ScanResult result) {
+		    Log.d(msg, "onScanResult()");
 		    super.onScanResult(callbackType, result);
-		    mAdapter.addDevice(result.getDevice().getAddress());
+		    scanlistAdapter.addDevice(result.getDevice().getAddress());
 		}
 	    };
 	
 	CharSequence text = "Hello toast!";
-	
+
 	Toast.makeText(getApplicationContext(), text, Toast.LENGTH_LONG).show();
 	Intent intent = new Intent();
 	intent.putExtra("scan_ret", "This data is returned when scan activity is finished.");
 	setResult(RESULT_OK, intent);
-	finish();
+    }
+
+    @Override
+    protected void onResume() {
+	super.onResume();
+	//scanForCamera(true);
+	//finish();
     }
 
     protected void scanForCamera(final boolean enable) {
 	mScanning = enable;
+	Log.d(msg, "entered scanForCamera()");
+	if (btScanner == null) {
+	    return;
+	}
  	if (enable) {
             // Stops scanning after a pre-defined scan period.
             handler.postDelayed(new Runnable() {
@@ -73,7 +84,9 @@ public class ScannerActivity extends Activity {
                 }
 		}, SCAN_PERIOD);
 
+	    Log.d(msg, "starting scan()");
             btScanner.startScan(leScanCallback);
+	    Log.d(msg, "scan started()");
         } else {
             btScanner.stopScan(leScanCallback);
         }
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