Show 'Waiting for GPS' overlay when starting recorder

app/src/main/java/de/tadris/fitness/activity/RecordWorkoutActivity.java

@@ -20,6 +20,7 @@
 package de.tadris.fitness.activity;
 
 import android.Manifest;
+import android.animation.Animator;
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.Intent;
@@ -32,6 +33,7 @@ import android.os.Handler;
 import android.os.PowerManager;
 import android.view.Menu;
 import android.view.MenuItem;
+import android.view.View;
 import android.view.ViewGroup;
 import android.widget.EditText;
 import android.widget.TextView;
@@ -71,6 +73,8 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
     List<LatLong> latLongList= new ArrayList<>();
     InfoViewHolder[] infoViews= new InfoViewHolder[4];
     TextView timeView, gpsStatusView;
+    View waitingForGPSOverlay;
+    boolean gpsFound= false;
     boolean isResumed= false;
     private Handler mHandler= new Handler();
     PowerManager.WakeLock wakeLock;
@@ -89,6 +93,8 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
         setupMap();
 
         ((ViewGroup)findViewById(R.id.recordMapViewrRoot)).addView(mapView);
+        waitingForGPSOverlay= findViewById(R.id.recorderWaitingOverlay);
+        waitingForGPSOverlay.setVisibility(View.VISIBLE);
 
         checkPermissions();
 
@@ -119,6 +125,20 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
         wakeLock.acquire(1000*60*120);
     }
 
+    private void hideWaitOverlay(){
+        waitingForGPSOverlay.clearAnimation();
+        waitingForGPSOverlay.animate().alpha(0f).setDuration(1000).setListener(new Animator.AnimatorListener() {
+            @Override public void onAnimationStart(Animator animator) { }
+            @Override public void onAnimationCancel(Animator animator) { }
+            @Override public void onAnimationRepeat(Animator animator) { }
+
+            @Override
+            public void onAnimationEnd(Animator animator) {
+                waitingForGPSOverlay.setVisibility(View.GONE);
+            }
+        }).start();
+    }
+
     private void setupMap(){
         this.mapView= new MapView(this);
         TileSources.Purpose purpose;
@@ -337,6 +357,10 @@ public class RecordWorkoutActivity extends FitoTrackActivity implements Location
     @Override
     public void onGPSStateChanged(WorkoutRecorder.GpsState oldState, WorkoutRecorder.GpsState state) {
         mHandler.post(() -> gpsStatusView.setTextColor(state.color));
+        if(!gpsFound && (state != WorkoutRecorder.GpsState.SIGNAL_LOST)){
+            gpsFound= true;
+            hideWaitOverlay();
+        }
     }
 
     public static class InfoViewHolder{

app/src/main/res/drawable-anydpi/ic_gps_no_fix.xml

@@ -0,0 +1,11 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24"
+    android:tint="#FFFFFF"
+    android:alpha="0.8">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M20.94,11c-0.46,-4.17 -3.77,-7.48 -7.94,-7.94V1h-2v2.06C6.83,3.52 3.52,6.83 3.06,11H1v2h2.06c0.46,4.17 3.77,7.48 7.94,7.94V23h2v-2.06c4.17,-0.46 7.48,-3.77 7.94,-7.94H23v-2h-2.06zM12,19c-3.87,0 -7,-3.13 -7,-7s3.13,-7 7,-7 7,3.13 7,7 -3.13,7 -7,7z"/>
+</vector>

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

@@ -197,4 +197,34 @@
 
     </LinearLayout>
 
+    <FrameLayout
+        android:id="@+id/recorderWaitingOverlay"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@android:color/holo_red_light">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:orientation="vertical">
+
+            <ImageView
+                android:id="@+id/imageView3"
+                android:layout_width="match_parent"
+                android:layout_height="200dp"
+                android:src="@drawable/ic_gps_no_fix" />
+
+            <TextView
+                android:id="@+id/textView"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_margin="20dp"
+                android:text="@string/waiting_gps"
+                android:textAlignment="center"
+                android:textColor="@android:color/background_light"
+                android:textSize="30sp" />
+        </LinearLayout>
+    </FrameLayout>
+
 </RelativeLayout>

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

@@ -114,4 +114,5 @@
     <string name="gps">GPS</string>
     <string name="data">Data</string>
     <string name="mapStyle">Map Style</string>
+    <string name="waiting_gps">Waiting for GPS</string>
 </resources>