Create README.md

Author: trinnguyen

README.md

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+# Android-SegmentView
+Simple Android Segment Control cloned from iOS 13
+
+
+
+## XML layout code
+```
+<com.trinnguyen.SegmentView
+    android:id="@+id/segment_2"
+    android:layout_width="300dp"
+    android:layout_height="36dp"
+    android:layout_marginTop="100dp"
+    android:layout_marginStart="24dp"
+    app:separateLineColor="#D6D6D9"
+    app:unselectedTextColor="#7F7F7F"
+    app:selectedTextColor="#FFFFFF"
+    app:unselectedBackgroundColor="#EEEEEF"
+    app:selectedBackgroundColor="@color/colorPrimary"
+    app:textAppearance="@style/TextAppearance.AppCompat.Body1"
+    app:numSegments="3"
+    app:selectedIndex="1"/>
+```
+
+## Update title
+```
+segmentView.setText(0, "Map");
+segmentView.setText(1, "Transit");
+segmentView.setText(2, "Satellite");
+```