Add DynamicUnitUtils

dynamic-utils/src/main/java/com/pranavpandey/android/dynamic/utils/DynamicUnitUtils.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2017 Pranav Pandey
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.pranavpandey.android.dynamic.utils;
+
+import android.content.res.Resources;
+import android.util.TypedValue;
+
+/**
+ * Helper class to perform unit conversions.
+ */
+public class DynamicUnitUtils {
+
+    /**
+     * To convert DP into pixels.
+     *
+     * @param dp Value in DP to be converted into pixels.
+     *
+     * @return The converted value in pixels.
+     */
+    public static int convertDpToPixels(float dp) {
+        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP,
+                dp, Resources.getSystem().getDisplayMetrics());
+    }
+
+    /**
+     * To convert pixels into DP.
+     *
+     * @param pixels Value in pixels to be converted into DP.
+     *
+     * @return The converted value in DP.
+     */
+    public static int convertPixelsToDp(float pixels) {
+        return (int) (pixels / Resources.getSystem().getDisplayMetrics().density);
+    }
+
+    /**
+     * To convert SP into pixels.
+     *
+     * @param sp Value in SP to be converted into pixels.
+     *
+     * @return The converted value in pixels.
+     */
+    public static int convertSpToPixels(float sp) {
+        return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP,
+                sp, Resources.getSystem().getDisplayMetrics());
+    }
+
+    /**
+     * To convert pixels into SP.
+     *
+     * @param pixels Value in pixels to be converted into SP.
+     *
+     * @return The converted value in SP.
+     */
+    public static int convertPixelsToSp(float pixels) {
+        return (int) (pixels / Resources.getSystem().getDisplayMetrics().density);
+    }
+
+    /**
+     * To convert DP into SP.
+     *
+     * @param dp Value in DP to be converted into SP.
+     *
+     * @return The converted value in SP.
+     */
+    public static int convertDpToSp(float dp) {
+        return (int) (convertDpToPixels(dp) / (float) convertSpToPixels(dp));
+    }
+}