added wifi support for 2.4ghz, very big hack

.idea/gradle.xml

@@ -12,12 +12,7 @@
             <option value="$PROJECT_DIR$/app" />
           </set>
         </option>
-        <option name="myModules">
+        <option name="resolveModulePerSourceSet" value="false" />
-          <set>
-            <option value="$PROJECT_DIR$" />
-            <option value="$PROJECT_DIR$/app" />
-          </set>
-        </option>
       </GradleProjectSettings>
     </option>
   </component>

.idea/misc.xml

@@ -37,7 +37,7 @@
     <ConfirmationsSetting value="0" id="Add" />
     <ConfirmationsSetting value="0" id="Remove" />
   </component>
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_7" default="true" assert-keyword="true" jdk-15="true" project-jdk-name="1.8" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">

app/build.gradle

@@ -2,7 +2,7 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 23
-    buildToolsVersion '23.0.2'
+    buildToolsVersion '25.0.0'
 
     defaultConfig {
         applicationId "de.fhws.indoor.sensorreadout"
@@ -23,7 +23,7 @@ dependencies {
     compile fileTree(include: ['*.jar'], dir: 'libs')
     testCompile 'junit:junit:4.12'
     compile 'com.android.support:appcompat-v7:23.4.0'
-    compile 'com.google.android.support:wearable:1.3.0'
+    //compile 'com.google.android.support:wearable:1.3.0'
     //compile 'com.google.android.gms:play-services-wearable:8.4.0'
     //provided 'com.google.android.wearable:wearable:1.0.0'
 }

app/src/main/AndroidManifest.xml

@@ -3,9 +3,6 @@
     package="de.fhws.indoor.sensorreadout">>
 
 
-    <uses-feature android:name="android.hardware.type.watch" />
-
-
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
     <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />
     <uses-permission android:name="android.permission.BLUETOOTH" />

app/src/main/java/de/fhws/indoor/sensorreadout/MainActivity.java

@@ -11,7 +11,7 @@ import android.os.Build;
 import android.os.Bundle;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.pm.ActivityInfoCompat;
-import android.support.wearable.activity.WearableActivity;
+//import android.support.wearable.activity.WearableActivity;
 import android.util.Log;
 import android.view.View;
 import android.widget.ArrayAdapter;
@@ -35,7 +35,7 @@ import de.fhws.indoor.sensorreadout.sensors.mySensor;
 import de.fhws.indoor.sensorreadout.sensors.SensorType;
 
 
-public class MainActivity extends WearableActivity {
+public class MainActivity extends Activity {
 
     private final ArrayList<mySensor> sensors = new ArrayList<mySensor>();
     private final Logger logger = new Logger(this);

app/src/main/java/de/fhws/indoor/sensorreadout/sensors/WiFi.java

@@ -10,6 +10,7 @@ import android.net.wifi.WifiManager;
 import android.os.Debug;
 import android.util.Log;
 
+import java.lang.reflect.Method;
 import java.util.List;
 
 
@@ -29,9 +30,8 @@ public class WiFi extends mySensor {
 		this.wifi = (WifiManager) act.getSystemService(Context.WIFI_SERVICE);
         isReceiverRegistered = true;
 
-
+		//this.wifi.setWifiEnabled(false);
-		this.wifi.setWifiEnabled(false);
+		//this.wifi.setWifiEnabled(true);
-		this.wifi.setWifiEnabled(true);
 
 		if (wifi == null) {
 			throw new MyException("WIFI not supported!");
@@ -82,6 +82,21 @@ public class WiFi extends mySensor {
         isReceiverRegistered = true;
 		wifi.createWifiLock(wifi.WIFI_MODE_SCAN_ONLY, "ipin");
 		//wifi.disconnect();
+
+
+		//this is a very nice hack. do not try this at home.
+		Method m = null;
+		try {
+			m = this.wifi.getClass().getDeclaredMethod("setFrequencyBand", int.class, boolean.class);
+			m.setAccessible(true);
+			m.invoke(this.wifi, 2, true);
+			m.invoke(this.wifi, 2, true);
+			m.invoke(this.wifi, 2, true);
+			Log.d("ok", "ok");
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+
 		startScan();
 	}
 

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.0-alpha2'
+        classpath 'com.android.tools.build:gradle:2.3.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Thu Jun 02 19:04:18 CEST 2016
+#Tue Oct 10 15:36:44 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip