reworked Button Positions

app/src/main/java/de/oklein/android/ueberwachungssystem/MainActivity.java

 import android.view.ViewGroup;
 import android.widget.Button;
 import android.widget.EditText;
+import android.widget.ScrollView;
 import android.widget.TextView;
 
 import org.w3c.dom.Text;
 
 public class MainActivity extends AppCompatActivity {
     private Fragment aktuellesFragment;
+    private TextView alarm;
+    private String text = "Das ist ein Alarm des Sensors";
     private void log(String nachricht) {
         Log.d(this.getClass().getSimpleName(), nachricht);
     }
         super.onCreate(savedInstanceState);
         setTitle(this.getClass().getSimpleName());
         setContentView(R.layout.activity_main);
+        alarm = findViewById(R.id.Alarm);
+        alarm.setText(text);
     }
     public void onClickZeigeFragment1(View view) {
         Button button = (Button) view;

app/src/main/res/layout/activity_main.xml

     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:background="@android:color/holo_orange_light"
+    android:background="@android:color/holo_green_dark"
     android:visibility="visible"
     tools:context="de.oklein.android.ueberwachungssystem.MainActivity"
     tools:visibility="visible">
         android:id="@+id/toggleKamera"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_toLeftOf="@id/toggleAudio"
         android:layout_alignBottom="@id/toggleAudio"
+        android:layout_marginRight="15dp"
+        android:layout_toStartOf="@+id/toggleAudio"
+        android:layout_toLeftOf="@id/toggleAudio"
         android:text="Kamera" />
 
     <ToggleButton
         android:id="@+id/toggleBewegung"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_toRightOf="@id/toggleAudio"
         android:layout_alignBottom="@id/toggleAudio"
+        android:layout_marginLeft="15dp"
+        android:layout_toEndOf="@+id/toggleAudio"
+        android:layout_toRightOf="@id/toggleAudio"
         android:text="Bewegung" />
 
     <Button
-        android:id="@+id/btn1"
+        android:id="@+id/btnAudio"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_alignBottom="@id/btn2"
-        android:layout_toLeftOf="@id/btn2"
+        android:layout_alignBottom="@id/btnKamera"
+        android:layout_marginRight="15dp"
+        android:layout_toStartOf="@+id/btnKamera"
         android:onClick="onClickZeigeFragment1"
         android:text="Audio" />
 
     <Button
-        android:id="@+id/btn2"
+        android:id="@+id/btnKamera"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@id/toggleAudio"
         android:onClick="onClickZeigeFragment2"
         android:text="Kamera" />
 
-    <Button
-        android:id="@+id/btn3"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:layout_alignBottom="@id/btn2"
-        android:layout_toRightOf="@id/btn2"
-        android:onClick="onClickZeigeFragment3"
-        android:text="Bewegung" />
     <!--
     <Button
         android:id="@+id/btnSensorWeg"
         android:onClick="onClickEntferneFragment"/>
     -->
     <Button
-        android:id="@+id/btnZwischen"
+        android:id="@+id/btnBewegung"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/btn2"
-        android:layout_centerHorizontal="true"
-        tools:visibility="invisible" />
+        android:layout_alignBottom="@id/btnKamera"
+        android:layout_marginLeft="15dp"
+        android:layout_toEndOf="@+id/btnKamera"
+        android:layout_toRightOf="@id/btnKamera"
+        android:onClick="onClickZeigeFragment3"
+        android:text="Bewegung" />
 
     <Button
         android:id="@+id/btnAufnahme"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/btn2"
-        android:layout_toLeftOf="@id/btnZwischen"
+        android:layout_below="@+id/btnKamera"
+        android:layout_toLeftOf="@id/btnKamera"
+        android:layout_marginRight="15dp"
         android:onClick="onClickEntferneFragment"
         android:text="Aufnahme" />
 
         android:id="@+id/btnWiedergabe"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
-        android:layout_below="@+id/btn2"
-        android:layout_toRightOf="@id/btnZwischen"
+        android:layout_below="@+id/btnKamera"
+        android:layout_toRightOf="@id/btnKamera"
+        android:layout_marginLeft="15dp"
         android:onClick="onClickEntferneFragment"
         android:text="Wiedergabe" />
 
     <FrameLayout
         android:id="@+id/frame"
         android:layout_width="match_parent"
-        android:layout_height="300dp"
+        android:layout_height="200dp"
         android:layout_below="@+id/btnZwischen"
         android:layout_alignParentStart="true">
     </FrameLayout>
 
     <ScrollView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent"
-        android:layout_below="@id/frame">
+        android:id= "@+id/scrollView1"
+        android:layout_width= "wrap_content"
+        android:layout_height= "wrap_content"
+        android:layout_below= "@id/frame">
+        <LinearLayout
+            android:layout_width= "match_parent"
+            android:layout_height= "match_parent"
+            android:orientation= "vertical" >
+            <TextView
+                android:id= "@+id/Alarm"
+                android:layout_width= "wrap_content"
+                android:layout_height= "wrap_content" />
+        </LinearLayout>
     </ScrollView>
 
 </RelativeLayout>