From 6b2dd5b290850301472a7097c84f76972b43b507 Mon Sep 17 00:00:00 2001
From: Javier <dev.git@javispedro.com>
Date: Fri, 26 Mar 2021 20:09:25 +0100
Subject: Add new Preferences activity and allow choosing temperature units

---
 .../com/javispedro/rempe/DeviceViewHolder.java     | 23 ++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'app/src/main/java/com/javispedro/rempe/DeviceViewHolder.java')

diff --git a/app/src/main/java/com/javispedro/rempe/DeviceViewHolder.java b/app/src/main/java/com/javispedro/rempe/DeviceViewHolder.java
index 2e2a441..4d1c99a 100644
--- a/app/src/main/java/com/javispedro/rempe/DeviceViewHolder.java
+++ b/app/src/main/java/com/javispedro/rempe/DeviceViewHolder.java
@@ -1,11 +1,13 @@
 package com.javispedro.rempe;
 
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.view.View;
 import android.widget.ImageView;
 import android.widget.ProgressBar;
 import android.widget.TextView;
 
+import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.RecyclerView;
 
 import com.dsi.ant.plugins.antplus.pcc.defines.RequestAccessResult;
@@ -18,6 +20,8 @@ public class DeviceViewHolder extends RecyclerView.ViewHolder implements Device.
     private final View mView;
     private final Context mContext;
 
+    private final SharedPreferences mPrefs;
+
     private final TextView mTemperatureView;
     private final TextView mMinMaxTemperatureLabel;
     private final TextView mMinTemperatureView;
@@ -29,12 +33,17 @@ public class DeviceViewHolder extends RecyclerView.ViewHolder implements Device.
     private final TextView mSignalLabel;
     private final ProgressBar mSignalBar;
 
+    private final static BigDecimal C2F_MULT = new BigDecimal("1.8");
+    private final static BigDecimal C2F_ADD = new BigDecimal("32");
+    private final static BigDecimal C2K_ADD = new BigDecimal("273.15");
+
     private Device mDevice;
 
     public DeviceViewHolder(View view) {
         super(view);
         mView = view;
         mContext = view.getContext();
+        mPrefs = PreferenceManager.getDefaultSharedPreferences(mContext);
         mNameView = view.findViewById(R.id.nameView);
         mStatusView = view.findViewById(R.id.statusView);
         mStatusImageView = view.findViewById(R.id.statusImageView);
@@ -82,8 +91,18 @@ public class DeviceViewHolder extends RecyclerView.ViewHolder implements Device.
         mSignalBar.setProgress(0);
     }
 
-    private String formatTemperature(BigDecimal temp) {
-        return mContext.getString(R.string.temperature_celsius, temp);
+    private String formatTemperature(BigDecimal tempC) {
+        switch (Preferences.getUnits(mPrefs)) {
+            default:
+            case "celsius":
+                return mContext.getString(R.string.temperature_celsius, tempC);
+            case "fahrenheit":
+                BigDecimal tempF = (tempC.multiply(C2F_MULT)).add(C2F_ADD);
+                return mContext.getString(R.string.temperature_fahrenheit, tempF);
+            case "kelvin":
+                BigDecimal tempK = (tempC.add(C2K_ADD));
+                return mContext.getString(R.string.temperature_kelvin, tempK);
+        }
     }
 
     @Override
-- 
cgit v1.2.3