Extract ShowDurationDialog from ChartsActivity

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/ChartsActivity.java

@@ -17,16 +17,13 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 package nodomain.freeyourgadget.gadgetbridge.activities.charts;
 
-import android.app.Dialog;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
 import android.os.Bundle;
-import android.util.AttributeSet;
 import android.view.Menu;
 import android.view.MenuItem;
-import android.view.MotionEvent;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
@@ -76,33 +73,6 @@ public class ChartsActivity extends AbstractGBFragmentActivity implements Charts
     LimitedQueue mActivityAmountCache = new LimitedQueue(60);
     ArrayList<String> enabledTabsList;
 
-    public static class ShowDurationDialog extends Dialog {
-        private final String mDuration;
-        private TextView durationLabel;
-
-        ShowDurationDialog(String duration, Context context) {
-            super(context);
-            mDuration = duration;
-        }
-
-        @Override
-        protected void onCreate(Bundle savedInstanceState) {
-            super.onCreate(savedInstanceState);
-            setContentView(R.layout.activity_charts_durationdialog);
-
-            durationLabel = findViewById(R.id.charts_duration_label);
-            setDuration(mDuration);
-        }
-
-        public void setDuration(String duration) {
-            if (mDuration != null) {
-                durationLabel.setText(duration);
-            } else {
-                durationLabel.setText("");
-            }
-        }
-    }
-
     private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
         @Override
         public void onReceive(Context context, Intent intent) {

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/ShowDurationDialog.java

@@ -0,0 +1,52 @@
+/*  Copyright (C) 2015-2020 Andreas Shimokawa, Carsten Pfeiffer, Daniele
+    Gobbetti, vanous, Vebryn
+
+    This file is part of Gadgetbridge.
+
+    Gadgetbridge is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Gadgetbridge is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>. */
+package nodomain.freeyourgadget.gadgetbridge.activities.charts;
+
+import android.app.Dialog;
+import android.content.Context;
+import android.os.Bundle;
+import android.widget.TextView;
+
+import nodomain.freeyourgadget.gadgetbridge.R;
+
+public class ShowDurationDialog extends Dialog {
+    private final String mDuration;
+    private TextView durationLabel;
+
+    ShowDurationDialog(final String duration, final Context context) {
+        super(context);
+        mDuration = duration;
+    }
+
+    @Override
+    protected void onCreate(final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_charts_durationdialog);
+
+        durationLabel = findViewById(R.id.charts_duration_label);
+        setDuration(mDuration);
+    }
+
+    public void setDuration(final String duration) {
+        if (mDuration != null) {
+            durationLabel.setText(duration);
+        } else {
+            durationLabel.setText("");
+        }
+    }
+}

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/SleepChartFragment.java

@@ -341,7 +341,7 @@ public class SleepChartFragment extends AbstractChartFragment {
             public void onClick(View v) {
                 DecimalFormat df = new DecimalFormat("###.#");
                 String detailedDuration = String.format(getString(R.string.charts_min_max_heartrate_popup), heartRateMin, heartRateMax, df.format(intensityTotal));
-                new ChartsActivity.ShowDurationDialog(detailedDuration, getContext()).show();
+                new ShowDurationDialog(detailedDuration, getContext()).show();
             }
         };